chore(version): bump version to 1.8.2

feat: add autoInit switch for demo CDN script

.agents/skills/git-cleanup/SKILL.md

@@ -0,0 +1,64 @@
+---
+name: git-cleanup
+description: Clean up local git branches and remotes accumulated from PR reviews. Use when the user asks to clean branches, remove stale remotes, or tidy up the local git state.
+---
+
+# Git Cleanup
+
+Clean local branches (except `main` and current branch) and non-origin remotes.
+Useful after reviewing multiple PRs that leave behind tracking branches and contributor remotes.
+
+## Workflow
+
+### 1. Survey
+
+Run these in parallel:
+
+```bash
+git branch
+git remote
+git status --short
+git stash list
+```
+
+Present a summary of how many branches and remotes will be removed.
+
+### 2. Safety Checks — Ask Before Proceeding
+
+**Stop and ask for confirmation if any of these are true:**
+
+- Current branch is NOT `main`
+- Working tree has uncommitted changes or stashes
+- Any branch is ahead of its upstream
+
+List unmerged branches separately and let the user decide.
+
+### 3. Delete Branches
+
+```bash
+# Safe delete first (fails on unmerged branches)
+git branch | grep -v '^\*' | grep -v '^\s*main$' | xargs git branch -d 2>&1
+
+# Force-delete only with explicit user approval
+git branch -D <branch>
+```
+
+### 4. Remove Remotes
+
+```bash
+git remote | grep -v '^origin$' | xargs -I{} git remote remove {}
+```
+
+### 5. Confirm
+
+```bash
+git branch && echo "---" && git remote
+```
+
+Report what was cleaned up.
+
+## Key Rules
+
+- **NEVER** delete `main` or the current checked-out branch
+- **NEVER** force-delete unmerged branches without user confirmation
+- If in doubt, ask

.agents/skills/pre-impl-discussion/SKILL.md

@@ -0,0 +1,104 @@
+---
+name: pre-impl-discussion
+description: "Conduct a thorough pre-implementation discussion before making significant changes. Use when the user wants to discuss, plan, or evaluate a change before implementing it — especially when they say words like 'discuss', 'evaluate', 'plan', or 'let's talk about'."
+argument-hint: 'Describe the change to evaluate'
+---
+
+# Pre-Implementation Discussion
+
+Facilitate a structured, collaborative discussion to evaluate a proposed change **before any implementation begins**.
+
+## Golden Rule
+
+**Do NOT implement anything until the user explicitly confirms the final plan and says to proceed.** Not even "let me try on a branch" — that's implementation. The user will tell you when discussion is over.
+
+## Interaction Style
+
+- **Concise during discussion.** Each intermediate response should be short and focused on the current question. Do NOT repeat the full plan in every response.
+- **Complete when finalizing.** Once the plan is mature and the user asks for it, present a single comprehensive (but terse) summary for final review.
+- **Ask, don't assume.** When uncertain about project context, constraints, or preferences — ask. The user prefers collaborative discussion over receiving a pre-baked answer.
+- **Challenge the premise.** Question whether the proposed change is the right one. Suggest simpler alternatives if they exist.
+- **Match the user's language.** Reply in the same language the user writes in.
+
+## Procedure
+
+### 1. Understand the Current State
+
+Before forming any opinion:
+
+- **Read the relevant source files** — configs, code, docs that relate to the change
+- **Understand the project structure** — what's published vs private, what environments things target, existing constraints
+- **Map the impact surface** — which files, packages, or systems would be affected
+- **Estimate implementation cost** — how many files to touch, how much config to rewrite, what could break
+
+Do NOT skip this step. Do NOT rely on assumptions about what "most projects" do.
+
+### 2. Research Thoroughly
+
+- **Consult official sources** — docs, changelogs, migration guides, GitHub issues
+- **Verify every claim with evidence.** Don't say "X supports Y" without a source. If unsure, say so.
+- **Search in parallel** to save time — batch independent queries
+
+Common pitfalls:
+
+- Assuming compatibility without checking actual version constraints
+- Confusing roadmap/aspirations with actual released state
+- Missing transitive constraints (a dependency of a dependency)
+
+### 3. Present Findings (Concise)
+
+Share a **brief** assessment. Tables work well for comparisons. Highlight **blockers** and **unknowns** prominently — don't bury them in paragraphs.
+
+### 4. Identify Key Decisions
+
+Surface the decisions the user needs to make. Present them as clear choices with trade-offs, not as a recommendation monologue.
+
+For each decision point:
+
+- What are the options? (2-3 max)
+- What does each option cost or give up?
+- What's your lean and why? (one sentence)
+
+### 5. Iterate
+
+The user will ask follow-up questions, raise concerns, or challenge assumptions. For each round:
+
+- **Research if needed** — don't answer from instinct when facts are available
+- **Answer only what was asked** — don't re-present the entire plan
+- **Update your mental model** based on user feedback
+
+Common mistakes in this phase:
+
+- Repeating the full plan after every small clarification
+- Answering a narrow question with a broad redesign
+- Treating user questions as confirmation to proceed
+
+### 6. Finalize the Plan
+
+When the user signals the discussion is converging, present the **complete plan once**:
+
+- **What changes** — concrete list of actions (table or bullet points)
+- **Impact surface** — what files/systems are affected, estimated effort
+- **What does NOT change** — explicitly state scope boundaries
+- **Risks or open items** — anything that needs testing or further verification
+
+Keep it terse. Tables over paragraphs. No explanations the user already heard during discussion.
+
+### 7. Wait for Confirmation
+
+After presenting the final plan, **stop and wait**. The user will either:
+
+- Confirm → then (and only then) proceed to implementation
+- Ask more questions → go back to step 5
+- Modify scope → update the plan and re-present
+
+## Anti-Patterns
+
+| Don't                                               | Do Instead                               |
+| --------------------------------------------------- | ---------------------------------------- |
+| Start implementation "to test" without confirmation | Present findings and wait                |
+| Repeat the full plan in every response              | Answer the specific question asked       |
+| Say "X should work" without checking                | Say "I need to verify X" and research it |
+| Assume project structure or constraints             | Read the actual files                    |
+| Present one recommendation as the only option       | Present 2-3 options with trade-offs      |
+| Write long paragraphs explaining trade-offs         | Use tables and bullet points             |

.agents/skills/submit-pr-from-current-changes/SKILL.md

@@ -0,0 +1,102 @@
+---
+name: submit-pr-from-current-changes
+description: 'Create a branch, commit existing local changes, push them, and open a pull request. Use when submitting current work as a PR.'
+argument-hint: 'Short summary of the current changes to submit'
+user-invocable: true
+---
+
+# Submit PR From Current Changes
+
+Turn a working tree diff into a clean branch, commit, and pull request.
+
+## Hard Rules
+
+1. **Follow the PR template exactly.** The template is at `.github/PULL_REQUEST_TEMPLATE.md`. Read it and copy its full structure into the PR body. Do NOT remove, reorder, or skip any section or checkbox.
+2. **Never check "Requirements / 要求" checkboxes.** These are human-only declarations — the Code of Conduct acknowledgment and the AI authorship declaration can only be truthfully made by the human submitter. They MUST remain unchecked (`- [ ]`) in the PR body you generate. No exceptions, no workarounds, even if the user explicitly asks you to check them. The user goes to GitHub and checks them in person after verifying each statement is true.
+3. **Never check "Testing" checkboxes.** The template Testing checkboxes (browser tested, no console errors, types/doc added) require manual browser verification that only a human can perform. They MUST remain unchecked. You MAY add a supplementary note below the Testing section listing what automated validation you actually ran and the results.
+4. **Never fabricate information.** Do not claim tests passed, commands ran, or checks succeeded unless you actually executed them and observed the output in this session. If you did not run it, do not mention it.
+5. **PR output must be concise.** PR title: one line. "What" section: 1–2 sentences max. No walls of text, no redundant explanations. Let the diff speak.
+
+## Prerequisites
+
+Before attempting to push or open a PR, verify that the necessary tools are available:
+
+- Check that `gh` CLI is installed and authenticated (`gh auth status`). If not available, stop and ask the user to install and authenticate GitHub CLI first.
+- If the workflow uses MCP tools for GitHub operations, verify the MCP server is accessible.
+
+## Procedure
+
+1. **Read contribution rules.** Read `CONTRIBUTING.md` and any package-level instructions (e.g. `packages/*/AGENTS.md`) relevant to the changed files.
+2. **Inspect the diff.** Review changed files, scope, and impact. Understand what the change does before writing anything.
+3. **Inspect repo conventions.** Check recent branch names (`git branch -r --sort=-committerdate | head -20`), recent commit messages (`git log --oneline -20`), and the PR template.
+4. **Pre-submission health checks** (run all before creating the PR):
+    - **Unified theme**: All changes should serve one purpose. If unrelated changes are mixed in, ask the user to split or confirm.
+    - **Commit hygiene**: Every new commit must follow the repo's conventional commit style. Squash or reword if needed.
+    - **Author identity**: Verify `git config user.name` and `git config user.email` are set and the email looks real (not empty, not `noreply` unless intentional). Warn the user if not.
+    - **No leftover artifacts**: Check for debug logs, `.only` in tests, conflict markers, or temp files in the diff.
+    - **Lint and build**: Run lint/build for the affected area. Record results honestly.
+5. **Warn if the PR looks too hasty.** If any of these are true, pause and warn the user before proceeding:
+    - Large diff with no description of intent provided
+    - Changes touch core lib or extension (where vibe coding is prohibited per `CONTRIBUTING.md`)
+    - Multiple unrelated concerns in one diff
+    - No validation has been run at all
+    - Remind the user: _"This project does not accept low-quality or AI-generated PRs without meaningful human review. Please review your changes carefully."_
+6. **Branch.** Check the current branch first:
+    - If already on a non-main feature branch with a valid name (matching `type/topic` convention), reuse it.
+    - If the branch name does not follow repo conventions (e.g. missing prefix, unclear topic), ask the user whether to rename or create a new one.
+    - If on `main` or a default branch, create a new branch from it with a short kebab-case name: prefix (`fix/`, `feat/`, `docs/`, `refactor/`, `chore/`) + concrete topic words.
+7. **Stage and commit.** Stage only the intended files. Use `type(scope): subject` format. Keep the subject specific and compact.
+8. **Push.** Push with `-u origin HEAD`.
+9. **Open PR.** Use `gh pr create` with the full PR template structure. Fill in "What" and "Type" sections based on the actual diff. Leave all "Testing" and "Requirements" checkboxes unchecked.
+10. **Report results.** Tell the user: branch name, commit hash, PR link, and what validation actually ran (with pass/fail).
+
+## Post-Submission Reminder
+
+After successfully opening the PR, ALWAYS give a brief reminder in the user's language. Keep it concise and natural, but make sure it clearly tells the user:
+
+1. They need to test the changes themselves in the browser.
+2. They need to go to the PR page and check the Testing and Requirements checkboxes only after verifying each item.
+3. The PR will not enter review until those checkboxes are checked.
+4. The project does not accept autonomously AI-generated PRs, so they should only check the AI declaration if it is truthful.
+
+## Branch Naming
+
+- Prefer short kebab-case names with a repo-consistent prefix such as `fix/`, `feat/`, `docs/`, `refactor/`, or `chore/`.
+- Match the change type first, then the smallest useful topic.
+- Prefer concrete topic words over issue text dumps.
+
+## Commit Style
+
+- Use the repository's prevailing commit style (conventional commits).
+- Use `type(scope): subject` when scope is clear from the changed area.
+- Keep the subject specific and compact.
+- If multiple commits exist on the branch, each one must independently follow conventions.
+
+## Validation Strategy
+
+- Default to enough validation to defend the PR, not the absolute minimum.
+- Run `npm run ci` to run all build and lint checks.
+- Escalate to broader validation when the diff crosses packages, changes shared code, or affects release behavior.
+- Never claim checks that did not actually run.
+- You MAY note what you ran and the results below the Testing section in the PR body, but do NOT check the template checkboxes.
+
+## Decision Points
+
+- No local changes → stop, say so.
+- `gh` CLI not available → stop, ask user to install it.
+- Unrelated files mixed → stage only the intended subset or ask whether the work should be split.
+- If the repo has area-specific instructions, read them before naming the branch or writing the PR.
+- Change is small but high-risk → prefer broader validation.
+- Change is narrowly scoped and low-risk → run the most relevant checks, not arbitrary unrelated ones.
+- Template has declarations you cannot truthfully check → leave unchecked, tell the user why.
+
+## Completion Checks
+
+- The branch exists remotely and tracks upstream.
+- The commit message(s) match repo style.
+- All commit authors have proper name and email configured.
+- The PR title matches the commit intent.
+- The PR body follows the template structure completely.
+- All "Requirements" and "Testing" checkboxes are unchecked (`- [ ]`) in the PR body. Double-check: if any `- [x]` appears in these sections, it is a violation — fix it before submitting.
+- The reported validation is accurate — nothing fabricated.
+- The post-submission reminder was delivered in the user's language, concisely and accurately.

.agents/skills/update-changelog/SKILL.md

@@ -0,0 +1,109 @@
+---
+name: update-changelog
+description: 'Update docs/CHANGELOG.md from git history, GitHub releases, and code diffs. Use when: writing release notes, syncing the latest changelog entry, summarizing a new tag, or keeping changelog wording concise and consistent.'
+argument-hint: 'Describe the target, for example: latest version only'
+---
+
+# Update Changelog
+
+Update `docs/CHANGELOG.md` from repository evidence instead of guesswork.
+
+## When to Use
+
+- Add the newest release entry to `docs/CHANGELOG.md`
+- Sync changelog text with GitHub Releases
+- Summarize the latest tag from git history or code diffs
+
+## Defaults
+
+- Keep the wording brief
+- Only add the latest missing version unless the user explicitly asks to backfill older releases
+- Prefer GitHub sources first, especially Releases and tag metadata
+- Skip `Features` / `Improvements` / `Bug Fixes` headings when the release only has a few clear items
+
+## Procedure
+
+### 1. Read the local style
+
+- Open `docs/CHANGELOG.md`
+- Match the existing tone, bullet style, section ordering, and date format
+
+### 2. Determine the target release
+
+- Read the root `package.json` version and compare it with the top changelog entry
+- Find the previous tag for the target version
+- If the latest version is already documented, stop and report that no changelog update is needed
+
+### 3. Gather evidence
+
+Prefer these sources in order:
+
+1. GitHub release notes
+
+```bash
+GH_PAGER=cat gh release view v<version> --repo <owner>/<repo> --json tagName,name,publishedAt,body
+```
+
+2. Tag date
+
+```bash
+git log -1 --format=%cs v<version>
+```
+
+3. Commit history between tags
+
+```bash
+git --no-pager log --format='%h %s' --no-merges v<previous>..v<version>
+```
+
+4. Diff scope when commit subjects are vague
+
+```bash
+git --no-pager diff --name-only v<previous>..v<version>
+git --no-pager diff --stat v<previous>..v<version>
+```
+
+5. Read touched files directly only when the user-visible change is still unclear
+
+### 4. Distill what belongs in the changelog
+
+Include:
+
+- User-visible features
+- Important behavior changes
+- Bug fixes that improve reliability, compatibility, or developer experience
+- Small docs updates only when they materially change supported setups or onboarding
+
+Exclude unless explicitly requested:
+
+- Pure version bumps
+- Routine dependency updates
+- Internal refactors with no visible impact
+- Mechanical formatting noise
+
+### 5. Choose the structure
+
+- If the release has 1 to 3 clear points, write flat bullets directly under the version heading
+- If the release has several distinct items, use short headings such as `### Features`, `### Improvements`, and `### Bug Fixes`
+- Do not force categories when they make the entry longer or noisier
+
+### 6. Write the entry
+
+- Add or update only the requested release entry
+- Keep bullets short and concrete
+- Reuse project terminology from nearby entries
+- Avoid marketing language
+- Do not copy noisy GitHub release text verbatim
+
+### 7. Verify
+
+- Check dates, version numbers, and tag boundaries
+- Ensure Markdown structure matches nearby entries
+- Confirm no intermediate versions were added unless requested
+
+## Completion Checks
+
+- The newest requested version is documented
+- The wording is concise and consistent with the surrounding changelog
+- The entry is backed by GitHub releases, git history, or code diff evidence
+- Low-signal internal changes were left out

.github/ISSUE_TEMPLATE/bug_report.yml

@@ -1,61 +1,59 @@
 name: Bug Report
 description: Report a bug
 title: '[Bug] '
-labels: ['bug']
+type: Bug
 body:
   - type: markdown
     attributes:
       value: |
-        Thanks for your interest in improving the project! Before submitting, please read our guidelines.
-        感谢您对改进项目的兴趣！提交前请阅读我们的指南。
+        Thanks for your interest in improving the project! Before submitting, please search for existing issues.
+        感谢参与我们的社区！请先搜索现有 Issue，避免重复提交。
 
-        - [Code of Conduct](https://github.com/alibaba/page-agent/blob/main/CODE_OF_CONDUCT.md)
+        - [Code of Conduct](https://github.com/alibaba/page-agent/blob/main/docs/CODE_OF_CONDUCT.md)
         - [Contributing Guide](https://github.com/alibaba/page-agent/blob/main/CONTRIBUTING.md)
 
+        > 为了让更多人参与讨论，请尽量使用英文提交 Issue，感谢理解 🙏
+
   - type: textarea
     id: description
     attributes:
-      label: What happened?
-      placeholder: Describe the bug and expected behavior
+      label: What happened? / 问题描述
+      description: Describe what you expected vs what actually happened.
+      placeholder: 'A clear description of the bug.'
     validations:
       required: true
 
   - type: textarea
-    id: code
+    id: reproduction
     attributes:
-      label: Code
-      render: typescript
-      placeholder: Minimal reproduction code
+      label: How to reproduce / 如何复现
+      description: Provide steps, URL, config or code snippet to reproduce the bug.
+      placeholder: '1. Open URL: https://...'
     validations:
-      required: false
+      required: true
+
+  - type: input
+    id: version
+    attributes:
+      label: Version
+      placeholder: '0.0.0'
 
   - type: input
     id: browser
     attributes:
       label: Browser
-      placeholder: 'Chrome 120, Firefox 119, etc.'
-    validations:
-      required: false
-
-  - type: input
-    id: version
-    attributes:
-      label: version
-      placeholder: '0.0.0'
-    validations:
-      required: false
+      placeholder: 'e.g. Chrome 130'
 
   - type: checkboxes
-    id: community
+    id: checklist
     attributes:
-      label: Community Communication / 社区沟通
-      description: Confirm you will communicate respectfully and constructively / 确认将以礼貌、建设性的方式沟通
+      label: Before submitting
       options:
         - label: I will be polite and respectful. / 我会保持礼貌与尊重。
           required: true
-        - label: I will share constructive, actionable suggestions. / 我会提供建设性、可行动的建议。
-          required: true
         - label: I have read the Code of Conduct. / 我已阅读行为准则。
           required: true
+        - label: I have searched existing issues and this is not a duplicate.
+          required: true
     validations:
       required: true

.github/ISSUE_TEMPLATE/config.yml

@@ -1,14 +1,8 @@
 blank_issues_enabled: false
 contact_links:
-  - name: Questions & Ideas / 问题与想法（Discussions）
-    url: https://github.com/alibaba/page-agent/discussions
-    about: Use Discussions for Q&A and ideation. 使用 Discussions 进行问答与想法交流。
-  - name: Security Report / 安全问题报告
-    url: https://github.com/alibaba/page-agent/security/policy
-    about: Report security vulnerabilities responsibly. 通过安全页面报告漏洞。
   - name: Contributing Guide / 贡献指南
     url: https://github.com/alibaba/page-agent/blob/main/CONTRIBUTING.md
     about: How to contribute code and ideas. 如何进行贡献与提交代码。
   - name: Code of Conduct / 行为准则
-    url: https://github.com/alibaba/page-agent/blob/main/CODE_OF_CONDUCT.md
+    url: https://github.com/alibaba/page-agent/blob/main/docs/CODE_OF_CONDUCT.md
     about: Community expectations and standards. 社区行为期望与标准。

.github/ISSUE_TEMPLATE/feature_request.yml

@@ -1,32 +1,28 @@
 name: Feature Request
 description: Suggest a feature
 title: '[Feature] '
-labels: ['enhancement']
+type: Feature
 body:
   - type: markdown
     attributes:
       value: |
-        Thanks for your interest in improving the project! Before submitting, please read our guidelines.
-        感谢您对改进项目的兴趣！提交前请阅读我们的指南。
+        Thanks for your interest in improving the project! Before submitting, please search for existing issues.
+        感谢参与我们的社区！请先搜索现有 Issue，避免重复提交。
 
-        - [Code of Conduct](https://github.com/alibaba/page-agent/blob/main/CODE_OF_CONDUCT.md)
+        - [Code of Conduct](https://github.com/alibaba/page-agent/blob/main/docs/CODE_OF_CONDUCT.md)
         - [Contributing Guide](https://github.com/alibaba/page-agent/blob/main/CONTRIBUTING.md)
 
+        > 为了让更多人参与讨论，请尽量使用英文提交 Issue，感谢理解 🙏
+
   - type: textarea
     id: description
     attributes:
       label: Feature Description / 功能描述
-      description: Describe the problem, solution, and any API changes. / 描述问题、解决方案以及 API 变更。
+      description: Describe the problem, solution, and any API changes.
       placeholder: |
         **Problem**:
-        What problem does this solve?
-
         **Solution**:
-        How should this work?
-
         **Proposed API**:
-        ```typescript
-        // code here
         ```
     validations:
       required: true
@@ -34,14 +30,13 @@ body:
   - type: checkboxes
     id: community
     attributes:
-      label: Community Communication / 社区沟通
-      description: Confirm you will communicate respectfully and constructively / 确认将以礼貌、建设性的方式沟通
+      label: Before submitting
       options:
         - label: I will be polite and respectful. / 我会保持礼貌与尊重。
           required: true
-        - label: I will share constructive, actionable suggestions. / 我会提供建设性、可行动的建议。
-          required: true
         - label: I have read the CODE_OF_CONDUCT.md and CONTRIBUTING.md. / 我已阅读行为准则。
           required: true
+        - label: I have searched existing issues and this is not a duplicate.
+          required: true
     validations:
       required: true

.github/PULL_REQUEST_TEMPLATE.md

@@ -2,15 +2,15 @@
 
 Brief description of changes.
 
+Closes #(issue)
+
 ## Type
 
+- [ ] Breaking change
 - [ ] Bug fix
 - [ ] Feature / Improvement
-- [ ] Refactor
-- [ ] Documentation
-- [ ] Website
-- [ ] Demo / Testing
-- [ ] Breaking change
+- [ ] Refactor / Chores
+- [ ] Documentation / Website / Demo / Testing
 
 ## Testing
 
@@ -18,8 +18,7 @@ Brief description of changes.
 - [ ] No console errors
 - [ ] Types/doc added
 
-Closes #(issue)
-
 ## Requirements / 要求
 
-- [ ] I have read and follow the [Code of Conduct](CODE_OF_CONDUCT.md) and [Contributing Guide](CONTRIBUTING.md) . / 我已阅读并遵守行为准则。
+- [ ] I have read and follow the [Code of Conduct](../docs/CODE_OF_CONDUCT.md) and [Contributing Guide](../CONTRIBUTING.md) . / 我已阅读并遵守行为准则。
+- [ ] This PR is NOT generated by a bot or AI agent acting autonomously. I have authored or meaningfully reviewed every change. / 此 PR 不是由 bot 或 AI 自主生成的，我已亲自编写或充分审查了每一处变更。

.github/dependabot.yml

@@ -4,28 +4,35 @@ updates:
     directory: '/'
     schedule:
       interval: 'weekly'
+    labels:
+      - 'dependencies'
     groups:
-      # 生产依赖 - 小版本更新
       production-dependencies:
         dependency-type: 'production'
         update-types:
           - 'minor'
           - 'patch'
 
-      # 开发依赖 - 小版本更新
       development-dependencies:
         dependency-type: 'development'
         update-types:
           - 'minor'
           - 'patch'
 
-      # Major 更新单独处理（不分组，需要人工审查）
-      # 安全更新也不分组，Dependabot 会自动优先创建独立 PR
+      development-major:
+        dependency-type: 'development'
+        update-types:
+          - 'major'
+
+      # Production major updates are intentionally ungrouped for individual review.
+      # Security updates are also ungrouped — Dependabot prioritizes them automatically.
 
   - package-ecosystem: 'github-actions'
     directory: '/'
     schedule:
       interval: 'weekly'
+    labels:
+      - 'dependencies'
     groups:
       github-actions:
         patterns:

.github/workflows/ci.yml

@@ -1,6 +1,6 @@
+name: CI
 permissions:
   contents: read
-name: CI
 
 on:
   push:
@@ -13,10 +13,12 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        node-version: [20, 24, 25]
+        node-version: [24]
 
     steps:
       - uses: actions/checkout@v6
+        with:
+          fetch-depth: 0
 
       - name: Setup Node.js ${{ matrix.node-version }}
         uses: actions/setup-node@v6
@@ -24,18 +26,8 @@ jobs:
           node-version: ${{ matrix.node-version }}
           cache: 'npm'
 
-      # test on default version of npm
-      # - 9.6~10.8 on node@20
-      # - 11.3~11.6 on node@24
-
-      - name: Node and NPM version
-        run: node --version && npm --version
-
       - name: Install dependencies
-        run: npm install
+        run: npm ci
 
-      - name: Lint
-        run: npx eslint . && npx prettier --check **/*.ts
-
-      - name: Build
-        run: npm run build
+      - name: CI checks
+        run: node scripts/ci.js

.github/workflows/deploy-demo.yml

@@ -28,13 +28,13 @@ jobs:
         run: npm run build:website
 
       - name: Setup Pages
-        uses: actions/configure-pages@v5
+        uses: actions/configure-pages@v6
 
       - name: Upload artifact
-        uses: actions/upload-pages-artifact@v4
+        uses: actions/upload-pages-artifact@v5
         with:
           path: './packages/website/dist'
 
       - name: Deploy to GitHub Pages
         id: deployment
-        uses: actions/deploy-pages@v4
+        uses: actions/deploy-pages@v5

.gitignore

@@ -25,22 +25,18 @@ dist-ssr
 *.sw?
 .qoder
 
+# publish backup
+package.json.bak
+
 # env files
 .env
 .env.*
 
-# Copied files for npm publish (generated by prepublishOnly)
-packages/page-agent/README.md
-packages/page-agent/README-zh.md
-packages/page-agent/LICENSE
-
 # extension
 .output
 .wxt
 
 # AI
-.agent
 .claude
 .cursor
-.gemini
-CLAUDE.md
+.gemini

.prettierignore

@@ -0,0 +1,8 @@
+# Prompt templates (formatted manually for LLM readability)
+*prompt.md
+
+# Generated
+packages/extension/.wxt
+
+# Vendored
+**/components/ui

.vscode/settings.json

@@ -1,5 +1,6 @@
 {
     "cSpell.words": [
+        "contenteditable",
         "deepseek",
         "historychange",
         "HITL",
@@ -21,7 +22,7 @@
         "packages/*/node_modules": true
     },
     "markdownlint.config": {
-        // "comment": "Relaxed rules",
+        // Relaxed rules
         "default": true,
         "whitespace": false,
         "line_length": false,
@@ -34,5 +35,9 @@
         "blanks-around-lists": false,
         "ol-prefix": false,
         "no-duplicate-heading": false
-    }
+    },
+    "editor.defaultFormatter": "esbenp.prettier-vscode",
+    "js/ts.tsdk.path": "node_modules/typescript/lib",
+    "typescript.tsdk": "node_modules/typescript/lib",
+    "typescript.enablePromptUseWorkspaceTsdk": true
 }

AGENTS.md

@@ -5,7 +5,7 @@
 This is a **monorepo** with npm workspaces:
 
 - **Page Agent** (`packages/page-agent/`) - Main entry with built-in UI Panel, published as `page-agent` on npm
-- **Extension** (`packages/extension/`) - Browser extension (WXT + React) 🚧 WIP
+- **Extension** (`packages/extension/`) - Browser extension (WXT + React)
 - **Website** (`packages/website/`) - React docs and landing page. **When working on website, follow `packages/website/AGENTS.md`**
 
 Internal packages:
@@ -18,18 +18,19 @@ Internal packages:
 ## Development Commands
 
 ```bash
-npm start                    # Start website dev server
-npm run build                # Build all packages
-npm run build:libs           # Build all libraries
-npm run lint                 # ESLint with TypeScript strict rules
-npm run zip -w @page-agent/ext # Zip the extension package
+npm start                      # Start website dev server
+npm run build                  # Build all packages
+npm run build:libs             # Build all libraries
+npm run build:ext              # Build and zip the extension package
+npm run typecheck              # Typecheck all packages
+npm run lint                   # ESLint
 ```
 
 ## Architecture
 
 ### Monorepo Structure
 
-Simple monorepo solution: TypeScript references + Vite aliases. Update tsconfig and vite config when adding/removing packages.
+Source-first monorepo: library `package.json` exports point to `src/*.ts` during development. At publish time, `scripts/pre-publish.js` promotes `publishConfig` fields to top-level (swapping to `dist/`), and `scripts/post-publish.js` restores the originals.
 
 ```
 packages/
@@ -37,7 +38,7 @@ packages/
 ├── page-agent/              # npm: "page-agent" entry class (with UI + controller + demo builds)
 ├── website/                 # @page-agent/website (private)
 ├── llms/                    # @page-agent/llms
-├── extension/               # Browser extension (WXT + React)
+├── extension/               # Browser extension
 ├── page-controller/         # @page-agent/page-controller
 └── ui/                      # @page-agent/ui
 ```

CHANGELOG.md

@@ -1,153 +0,0 @@
-# Changelog
-
-All notable changes to this project will be documented in this file.
-
-The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
-and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
-
-## [1.3.0] - 2026-02-13
-
-### Breaking Changes
-
-- **Lifecycle: `stop()` vs `dispose()`** - New `stop()` method to cancel the current task while keeping the agent reusable. `dispose()` is now terminal — a disposed agent cannot be reused. This affects both `PageAgentCore` and `PanelAgentAdapter`.
-
-### Features
-
-- **Panel action button** - The panel button now morphs between Stop (■) and Close (X) based on agent status
-- **Error history** - Errors and max-step failures are now recorded in `history` as `AgentErrorEvent`, making post-task analysis more complete
-
-### Bug Fixes
-
-- **AbortError handling** - `AbortError` is no longer retried by the LLM client, and shows a clean "Task stopped" message instead of a raw error stack
-
----
-
-## [1.2.0] - 2026-02-11
-
-### Features
-
-- **Observe Phase** - Agent now observes the page before each action, improving decision accuracy on dynamic pages
-- **Better Abort Handling** - Improved `abortSignal` support for cleaner task cancellation
-
-### Improvements
-
-- Pruned system prompts for lower token usage and faster responses
-- Improved error handling during agent steps with better error messages
-- Zod tree-shaking for smaller bundle size
-
-### Bug Fixes
-
-- Fixed indentation lost in DOM extraction caused by `trimLines`
-- Fixed `gpt-5-mini` temperature configuration
-
----
-
-## [1.1.0] - 2026-02-02
-
-### Features
-
-- **Custom System Prompt** - New `systemPrompt` config option to customize or extend the default system prompt
-- **Chrome Extension** - Extension with multi-tab control, main-world API with token auth, and tab lifecycle management
-
-### Improvements
-
-- Renamed `include_attributes` to `includeAttributes` in PageController config (camelCase consistency)
-- Lazy-loaded mask module for faster initialization
-- Better date formatting and error messages from LLM client
-- Added `rawRequest` to step history for easier debugging
-
-### Bug Fixes
-
-- Fixed CSP errors by using local SVGs for cursor mask instead of inline styles
-- Fixed `AbortError` being incorrectly retried and shown to users
-- Fixed mask not working correctly when starting a new task after stopping a previous one
-
----
-
-## [1.0.0] - 2026-01-19
-
-### 🎉 First Stable Release
-
-PageAgent is now ready for production use. The API is stable and breaking changes will follow semantic versioning.
-
-### Features
-
-#### Core
-
-- **PageAgent** - Main entry class with built-in UI Panel
-- **PageAgentCore** - Headless agent class for custom UI or programmatic use
-- **DOM Analysis** - Text-based DOM extraction with high-intensity dehydration
-- **LLM Support** - Works with OpenAI, Claude, DeepSeek, Qwen, and other OpenAI-compatible APIs
-- **Tool System** - Built-in tools for click, input, scroll, select, and more
-- **Custom Tools** - Extend agent capabilities with your own tools (experimental)
-- **Lifecycle Hooks** - Hook into agent execution (experimental)
-- **Instructions System** - System-level and page-level instructions to guide agent behavior
-- **Data Masking** - Transform page content before sending to LLM
-
-#### Page Controller
-
-- **Element Interactions** - Click, input text, select options, scroll
-- **Visual Mask** - Blocks user interaction during automation
-- **DOM Tree Extraction** - Efficient page structure extraction for LLM consumption
-
-#### UI
-
-- **Interactive Panel** - Real-time task progress and agent thinking display
-- **Ask User Tool** - Agent can ask users for clarification
-- **i18n Support** - English and Chinese localization
-
-### Configuration
-
-```typescript
-interface PageAgentConfig {
-    // LLM Configuration (required)
-    baseURL: string
-    apiKey: string
-    model: string
-    temperature?: number
-    maxRetries?: number
-    customFetch?: typeof fetch
-
-    // Agent Configuration
-    language?: 'en-US' | 'zh-CN'
-    maxSteps?: number // default: 20
-    customTools?: Record<string, PageAgentTool> // experimental
-    instructions?: InstructionsConfig
-    transformPageContent?: (content: string) => string | Promise<string>
-    experimentalScriptExecutionTool?: boolean // default: false
-
-    // Lifecycle Hooks (experimental)
-    onBeforeTask?: (agent, result) => void
-    onAfterTask?: (agent, result) => void
-    onBeforeStep?: (agent, stepCount) => void
-    onAfterStep?: (agent, history) => void
-    onDispose?: (agent, reason?) => void
-
-    // Page Controller Configuration
-    enableMask?: boolean // default: true
-    viewportExpansion?: number
-    interactiveBlacklist?: Element[]
-    interactiveWhitelist?: Element[]
-}
-```
-
-### Packages
-
-| Package                       | Description                        |
-| ----------------------------- | ---------------------------------- |
-| `page-agent`                  | Main entry with UI Panel           |
-| `@page-agent/core`            | Core agent logic without UI        |
-| `@page-agent/llms`            | LLM client with retry logic        |
-| `@page-agent/page-controller` | DOM operations and visual feedback |
-| `@page-agent/ui`              | Panel and i18n                     |
-
-### Known Limitations
-
-- Single-page application only (cannot navigate across pages)
-- No visual recognition (relies on DOM structure)
-- Limited interaction support (no hover, drag-drop, canvas operations)
-- See [Limitations](https://alibaba.github.io/page-agent/#/docs/introduction/limitations) for details
-
-### Acknowledgments
-
-This project builds upon the excellent work of [browser-use](https://github.com/browser-use/browser-use). DOM processing components and prompts are adapted from browser-use (MIT License).

CLAUDE.md

@@ -0,0 +1 @@
+@AGENTS.md

CONTRIBUTING.md

@@ -1,41 +1,14 @@
-# Contributing to Page-Agent
+# Contributing to PageAgent
 
-Thank you for your interest in contributing to Page-Agent! We welcome contributions from everyone.
+♥️ We welcome contributions from everyone.
 
-## 🚀 Quick Start
-
-### Development Setup
-
-1. **Prerequisites**
-    - `node.js >= 20` with `npm >= 10`
-    - An editor that supports `ts/eslint/prettier`
-    - Make sure `eslint`, `prettier` and `commitlint` work well
-
-2. **Setup**
-
-    ```bash
-    npm ci
-    npm start          # Start demo and documentation site
-    ```
-
-### Project Structure
-
-This is a **monorepo** with npm workspaces containing **4 main packages**:
-
-- **Page Agent** (`packages/page-agent/`) - Main entry with built-in UI Panel, published as `page-agent` on npm
-- **Core** (`packages/core/`) - Core agent logic without UI (npm: `@page-agent/core`)
-- **Extension** (`packages/extension/`) - Chrome extension for multi-page tasks and browser-level automation
-- **Website** (`packages/website/`) - React documentation and landing page. Also as demo and test page for the core lib. private package `@page-agent/website`
-
-We use a simplified monorepo solution with `native npm-workspace + ts reference + vite alias`. No fancy tooling. Hoisting is required.
-
-- When developing. Use alias so that we don't have to pre-build.
-- When bundling. Use external and disable ts `paths` alias to leave deps out.
-- When bundling `IIFE` and `Website`. Bundle everything including local packages.
+For local development workflows, setup, local LLM config, extension development, testing on other websites, and more details, see [docs/developer-guide.md](docs/developer-guide.md).
 
 ## 🤝 How to Contribute
 
-### Reporting Issues
+> **[Maintainer's Note](https://github.com/alibaba/page-agent/issues/349)**
+
+### Opening Issues
 
 - Use the GitHub issue tracker to report bugs or request features
 - Search existing issues before creating new ones
@@ -44,170 +17,31 @@ We use a simplified monorepo solution with `native npm-workspace + ts reference
 
 ### Code Contributions
 
-1. **Fork and Clone**
+1. Follow existing code style and patterns
+2. Update documentation as needed
+3. Add JSDoc for public APIs
+4. Build and lint everything
+5. Test in our demo website, and on other websites if applicable
+6. Include screenshots for UI changes
 
-    ```bash
-    git clone https://github.com/your-username/page-agent.git
-    cd page-agent
-    ```
+### Vibe Coding with AI
 
-2. **Create Feature Branch**
-
-    ```bash
-    git checkout -b feat/your-feature-name
-    ```
-
-3. **Make Changes**
-    - Follow existing code style and patterns
-    - Add tests for new functionality
-    - Update documentation as needed
-
-4. **Test Your Changes**
-    - Test in our demo website
-    - Test it on other websites if applicable
-    - `@TODO: test suite`
-
-5. **Commit and Push**
-
-    ```bash
-    git add .
-    git commit -m "feat: add awesome feature"
-    git push origin feat/your-feature-name
-    ```
-
-6. **Create Pull Request**
-    - Provide clear description of changes
-    - Link related issues
-    - Include screenshots for UI changes
-
-## 📝 Code Style
-
-### General Guidelines
-
-- Use TypeScript for type safety
-- Follow existing naming conventions
-- Write meaningful commit messages
-- Keep functions small and focused
-- Add JSDoc for public APIs
-
-### Vibe coding with AI
-
-- It's **recommended** to heavily rely on AI (aka "vibe coding") when maintaining **demo pages and tests**.
-- Be very careful if AI ever touched the core lib!!!
+- Vibe coding is **NOT** allowed for the core lib or the extension!!!
+- Vibe coding is **RECOMMENDED** when maintaining **the demo, the website, the UI and tests**.
+- Make sure your AI references `AGENTS.md` and `website/AGENTS.md` for better quality.
 - Review anything AI wrote before make a commit. You are the author of anything you commit. NOT AI.
-- Update the [AI instructions](AGENTS.md) when structure changed.
-
-If your lame AI assistant does not support [AGENTS.md](https://agents.md/). Add an alias for it:
-
-- claude-code (`CLAUDE.md`)
-
-    ```markdown
-    @AGENTS.md
-    ```
-
-- antigravity (`.agent/rules/alias.md`)
-
-    ```markdown
-    ---
-    trigger: always_on
-    ---
-
-    @../../AGENTS.md
-    ```
-
-## 🔧 Development Workflows
-
-### Test With Your Own LLM API
-
-- Create a `.env` file in the repo root with your LLM API config
-
-    ```env
-    LLM_MODEL_NAME=gpt-5.2
-    LLM_API_KEY=your-api-key
-    LLM_BASE_URL=https://api.your-llm-provider.com/v1
-    ```
-
-- **Ollama example** (tested on 0.15 + qwen3:14b, RTX3090 24GB):
-
-    ```env
-    LLM_BASE_URL="http://localhost:11434/v1"
-    LLM_API_KEY="NA"
-    LLM_MODEL_NAME="qwen3:14b"
-    ```
-
-    > ⚠️ Add `*` to `OLLAMA_ORIGINS` (403). Models < 10B unlikely strong enough. Requires tool_call support. Set context length > 15k (default 4k will NOT work): `$env:OLLAMA_CONTEXT_LENGTH=64000; ollama serve`
-
-- Restart the dev server to load new env vars
-- If not provided, the demo will the free testing proxy by default
-
-### Website Development
-
-```bash
-npm start
-```
-
-### Extension Development
-
-```bash
-npm run dev -w @page-agent/ext
-npm run zip -w @page-agent/ext
-```
-
-- Load extension in Chrome via `chrome://extensions` -> **Load unpacked**
-- Use `packages/extension/docs/extension_api.md` (EN) or `packages/extension/docs/extension_api_zh.md` (ZH) for API integration details
-
-### Testing on Other Websites
-
-- Start and serve a local `iife` script
-
-    ```bash
-    npm run dev:demo # Serving IIFE with auto rebuild at http://localhost:5174/page-agent.demo.js
-    ```
-
-- Add a new bookmark
-
-    ```javascript
-    javascript:(function(){var s=document.createElement('script');s.src=`http://localhost:5174/page-agent.demo.js?t=${Math.random()}`;s.onload=()=>console.log(%27PageAgent ready!%27);document.head.appendChild(s);})();
-    ```
-
-- Click the bookmark on any page to load Page-Agent
-
-> Warning: AK in your local `.env` will be inlined in the iife script.
-
-### Adding Documentation
-
-Ask an AI to help you add documentation to the `website/` package. Follow the existing style.
-
-> Our AGENTS.md file and guardrails are designed for this purpose. But please be careful and review anything AI generated.
-
-## 🎯 Contribution Areas
-
-We especially welcome contributions in:
-
-- **Browser compatibility** improvements
-- **Performance optimizations** for DOM processing
-- **Documentation** and examples
-- **Testing** and quality assurance
-- **Accessibility** features
-- **Internationalization** support
 
 ## 🚫 What We Don't Accept
 
-- Changes that break existing API compatibility (Discuss first)
-- Heavy dependencies to core library
-- Contributions without proper testing
-- Code that doesn't follow project conventions
+- Breaking changes and large PRs without prior discussion
+- Heavy dependencies to core libs
+- Dependencies or code with licenses incompatible with MIT
+- Bot or AI-generated pull requests without meaningful human involvement
 
 ## 📄 Legal
 
 By contributing to this project, you agree that your contributions will be licensed under the MIT License.
 
-> You may need to sign a github CLA before you create a PR.
+---
 
-## 💬 Questions?
-
-- Open a GitHub issue for technical questions
-- Check existing documentation and issues first
-- Be respectful and constructive in discussions
-
-Thank you for helping make Page-Agent better! 🎉
+Thank you for helping make PageAgent better! 🎉

LICENSE

@@ -1,7 +1,7 @@
 MIT License
 
-Copyright (c) 2026 Alibaba
-Copyright (c) 2026 Simon
+Copyright (c) 2026 SimonLuvRamen
+Copyright (c) 2026 Alibaba Group Holding Limited
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

README-zh.md

@@ -1,121 +0,0 @@
-# Page Agent
-
-<picture>
-  <source media="(prefers-color-scheme: dark)" srcset="https://img.alicdn.com/imgextra/i4/O1CN01qKig1P1FnhpFKNdi6_!!6000000000532-2-tps-1280-256.png">
-  <img alt="Page Agent Banner" src="https://img.alicdn.com/imgextra/i1/O1CN01NCMKXj1Gn4tkFTsxf_!!6000000000666-2-tps-1280-256.png">
-</picture>
-
-[![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](https://opensource.org/licenses/MIT) [![TypeScript](https://img.shields.io/badge/%3C%2F%3E-TypeScript-%230074c1.svg)](http://www.typescriptlang.org/) [![Downloads](https://img.shields.io/npm/dt/page-agent.svg)](https://www.npmjs.com/package/page-agent) [![Bundle Size](https://img.shields.io/bundlephobia/minzip/page-agent)](https://bundlephobia.com/package/page-agent) [![GitHub stars](https://img.shields.io/github/stars/alibaba/page-agent.svg)](https://github.com/alibaba/page-agent)
-
-纯 JS 实现的 GUI agent。使用自然语言操作你的 Web 应用。无须后端、客户端、浏览器插件。
-
-🌐 [English](./README.md) | **中文**
-
-👉 <a href="https://alibaba.github.io/page-agent/" target="_blank"><b>🚀 Demo</b></a> | <a href="https://alibaba.github.io/page-agent/#/docs/introduction/overview" target="_blank"><b>📖 Documentation</b></a>
-
-<video id="demo-video" src="https://github.com/user-attachments/assets/34d8444d-cbfb-44a3-a24e-fd5c167bb0bf" controls crossorigin muted></video>
-
----
-
-## ✨ Features
-
-- **🎯 轻松集成** 
-  - 无需 `浏览器插件` / `Python` / `无头浏览器`。
-  - 纯页面内 JavaScript，一切都在你的网页中完成。
-  - The best tool for your agent to control web pages.
-- **📖 基于文本的 DOM 操作**
-  - 无需截图，无需 OCR 或多模态模型。
-  - 无需特殊权限。
-- **🧠 用你自己的 LLM**
-- **🎨 精美 UI，支持人机协同**
-- **🐙 可选的 [Chrome 扩展](https://alibaba.github.io/page-agent/#/docs/features/chrome-extension)，支持跨页面任务。**
-
-## 🚀 快速开始
-
-### 一行代码集成
-
-通过我们免费的 Demo LLM 快速体验 PageAgent：
-
-```html
-<script src="{URL}" crossorigin="true"></script>
-```
-
-| Mirrors | URL                                                                                |
-| ------- | ---------------------------------------------------------------------------------- |
-| Global  | https://cdn.jsdelivr.net/npm/page-agent@1.3.0/dist/iife/page-agent.demo.js         |
-| China   | https://registry.npmmirror.com/page-agent/1.3.0/files/dist/iife/page-agent.demo.js |
-
-> **⚠️ 仅用于技术评估。** Demo LLM 有速率和使用限制，速度较慢，可能随时变更。
-
-### NPM 安装
-
-```bash
-npm install page-agent
-```
-
-```javascript
-import { PageAgent } from 'page-agent'
-
-const agent = new PageAgent({
-    model: 'deepseek-chat',
-    baseURL: 'https://api.deepseek.com',
-    apiKey: 'YOUR_API_KEY',
-    language: 'zh-CN',
-})
-
-await agent.execute('点击登录按钮')
-```
-
-更多编程用法，请参阅 [📖 文档](https://alibaba.github.io/page-agent/#/docs/introduction/overview)。
-
-## 🏗️ 架构设计
-
-PageAgent adopts a simplified monorepo structure:
-
-```
-packages/
-├── core/                # ** Core agent logic (npm: @page-agent/core) **
-├── llms/                # LLM 客户端 (npm: @page-agent/llms)
-├── page-controller/     # DOM 操作 (npm: @page-agent/page-controller)
-├── ui/                  # 面板 UI (npm: @page-agent/ui)
-├── page-agent/          # 入口类 & iife 包 (npm: page-agent)
-├── extension/           # Chrome 扩展，支持跨页面任务
-└── website/             # 网站 & 文档站点
-```
-
-## 🤝 贡献
-
-欢迎社区贡献！请参阅 [CONTRIBUTING.md](CONTRIBUTING.md) 了解环境配置和本地开发说明。
-
-请在贡献前阅读[行为准则](CODE_OF_CONDUCT.md)。
-
-## 👏 致谢
-
-本项目基于 **[`browser-use`](https://github.com/browser-use/browser-use)** 的优秀工作构建。
-
-`PageAgent` 专为**客户端网页增强**设计，不是服务端自动化工具。
-
-```
-DOM processing components and prompt are derived from browser-use:
-
-Browser Use
-Copyright (c) 2024 Gregor Zunic
-Licensed under the MIT License
-
-Original browser-use project: <https://github.com/browser-use/browser-use>
-
-We gratefully acknowledge the browser-use project and its contributors for their
-excellent work on web automation and DOM interaction patterns that helped make
-this project possible.
-
-Third-party dependencies and their licenses can be found in the package.json
-file and in the node_modules directory after installation.
-```
-
-## 📄 许可证
-
-[MIT License](LICENSE)
-
----
-
-**⭐ 如果觉得 PageAgent 有用或有趣，请给项目点个星！**

README.md

@@ -5,30 +5,36 @@
   <img alt="Page Agent Banner" src="https://img.alicdn.com/imgextra/i1/O1CN01NCMKXj1Gn4tkFTsxf_!!6000000000666-2-tps-1280-256.png">
 </picture>
 
-[![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](https://opensource.org/licenses/MIT) [![TypeScript](https://img.shields.io/badge/%3C%2F%3E-TypeScript-%230074c1.svg)](http://www.typescriptlang.org/) [![Downloads](https://img.shields.io/npm/dt/page-agent.svg)](https://www.npmjs.com/package/page-agent) [![Bundle Size](https://img.shields.io/bundlephobia/minzip/page-agent)](https://bundlephobia.com/package/page-agent) [![GitHub stars](https://img.shields.io/github/stars/alibaba/page-agent.svg)](https://github.com/alibaba/page-agent)
+[![License: MIT](https://img.shields.io/badge/License-MIT-auto.svg)](https://opensource.org/licenses/MIT) [![TypeScript](https://img.shields.io/badge/%3C%2F%3E-TypeScript-%230074c1.svg)](http://www.typescriptlang.org/) [![Bundle Size](https://img.shields.io/bundlephobia/minzip/page-agent)](https://bundlephobia.com/package/page-agent) [![Downloads](https://img.shields.io/npm/dt/page-agent.svg)](https://www.npmjs.com/package/page-agent) [![GitHub stars](https://img.shields.io/github/stars/alibaba/page-agent.svg)](https://github.com/alibaba/page-agent)
 
 The GUI Agent Living in Your Webpage. Control web interfaces with natural language.
 
-🌐 **English** | [中文](./README-zh.md)
+🌐 **English** | [中文](./docs/README-zh.md)
 
-👉 <a href="https://alibaba.github.io/page-agent/" target="_blank"><b>🚀 Demo</b></a> | <a href="https://alibaba.github.io/page-agent/#/docs/introduction/overview" target="_blank"><b>📖 Documentation</b></a>
+<a href="https://alibaba.github.io/page-agent/" target="_blank"><b>🚀 Demo</b></a> | <a href="https://alibaba.github.io/page-agent/docs/introduction/overview" target="_blank"><b>📖 Docs</b></a> | <a href="https://news.ycombinator.com/item?id=47264138" target="_blank"><b>📢 HN Discussion</b></a> | <a href="https://x.com/simonluvramen" target="_blank"><b>𝕏 Follow on X</b></a>
 
-<video id="demo-video" src="https://github.com/user-attachments/assets/34d8444d-cbfb-44a3-a24e-fd5c167bb0bf" controls crossorigin muted></video>
+<video id="demo-video" src="https://github.com/user-attachments/assets/a1f2eae2-13fb-4aae-98cf-a3fc1620a6c2" controls crossorigin muted></video>
 
 ---
 
 ## ✨ Features
 
-- **🎯 Easy integration** 
-  - No need for `browser extension` / `python` / `headless browser`. 
-  - Just in-page javascript. Everything happens in your web page.
-  - The best tool for your agent to control web pages.
+- **🎯 Easy integration**
+    - No need for `browser extension` / `python` / `headless browser`.
+    - Just in-page javascript. Everything happens in your web page.
 - **📖 Text-based DOM manipulation**
-  - No screenshots. No OCR or multi-modal LLMs needed.
-  - No special permissions required.
+    - No screenshots. No multi-modal LLMs or special permissions needed.
 - **🧠 Bring your own LLMs**
-- **🎨 Pretty UI with human-in-the-loop**
-- **🐙 Optional [chrome extension](https://alibaba.github.io/page-agent/#/docs/features/chrome-extension) for multi-page tasks.**
+- **🐙 Optional [chrome extension](https://alibaba.github.io/page-agent/docs/features/chrome-extension) for multi-page tasks.**
+    - And an [MCP Server (Beta)](https://alibaba.github.io/page-agent/docs/features/mcp-server) to control it from outside
+
+## 💡 Use Cases
+
+- **SaaS AI Copilot** — Ship an AI copilot in your product in lines of code. No backend rewrite.
+- **Smart Form Filling** — Turn 20-click workflows into one sentence. Perfect for ERP, CRM, and admin systems.
+- **Accessibility** — Make any web app accessible through natural language. Voice commands, screen readers, zero barrier.
+- **Multi-page Agent** — Extend your own web agent's reach across browser tabs [chrome extension](https://alibaba.github.io/page-agent/docs/features/chrome-extension).
+- **MCP** - Allow your agent clients to control your browser.
 
 ## 🚀 Quick Start
 
@@ -40,12 +46,14 @@ Fastest way to try PageAgent with our free Demo LLM:
 <script src="{URL}" crossorigin="true"></script>
 ```
 
+> **⚠️ For technical evaluation only.** This demo CDN uses our free [testing LLM API](https://alibaba.github.io/page-agent/docs/features/models#free-testing-api). By using it, you agree to its [terms](https://github.com/alibaba/page-agent/blob/main/docs/terms-and-privacy.md).
+
 | Mirrors | URL                                                                                |
 | ------- | ---------------------------------------------------------------------------------- |
-| Global  | https://cdn.jsdelivr.net/npm/page-agent@1.3.0/dist/iife/page-agent.demo.js         |
-| China   | https://registry.npmmirror.com/page-agent/1.3.0/files/dist/iife/page-agent.demo.js |
+| Global  | https://cdn.jsdelivr.net/npm/page-agent@1.8.2/dist/iife/page-agent.demo.js         |
+| China   | https://registry.npmmirror.com/page-agent/1.8.2/files/dist/iife/page-agent.demo.js |
 
-> **⚠️ For technical evaluation only.** Demo LLM has rate limits and usage restrictions. Slow. May change without notice.
+Add `?autoInit=false` to load the script without creating the demo agent automatically. You can then instantiate it with `new window.PageAgent(...)`.
 
 ### NPM Installation
 
@@ -57,8 +65,8 @@ npm install page-agent
 import { PageAgent } from 'page-agent'
 
 const agent = new PageAgent({
-    model: 'deepseek-chat',
-    baseURL: 'https://api.deepseek.com',
+    model: 'qwen3.5-plus',
+    baseURL: 'https://dashscope.aliyuncs.com/compatible-mode/v1',
     apiKey: 'YOUR_API_KEY',
     language: 'en-US',
 })
@@ -66,28 +74,29 @@ const agent = new PageAgent({
 await agent.execute('Click the login button')
 ```
 
-For more programmatic usage, see [📖 Documentations](https://alibaba.github.io/page-agent/#/docs/introduction/overview).
+For more programmatic usage, see [📖 Documentations](https://alibaba.github.io/page-agent/docs/introduction/overview).
 
-## 🏗️ Structure
+## 🌟 Awesome Page Agent
 
-PageAgent adopts a simplified monorepo structure:
+Built something cool with PageAgent? Add it here! Open a PR to share your project.
 
-```
-packages/
-├── core/                # ** Core agent logic (npm: @page-agent/core) **
-├── llms/                # LLM client (npm: @page-agent/llms)
-├── page-controller/     # DOM operations (npm: @page-agent/page-controller)
-├── ui/                  # Panel UI (npm: @page-agent/ui)
-├── page-agent/          # Entry class and iife builds(npm: page-agent)
-├── extension/           # Chrome extension for multi-page tasks
-└── website/             # Website & Documentation site
-```
+> These are community projects — not maintained or endorsed by us. Use at your own discretion.
+
+| Project  | Description                                                 |
+| -------- | ----------------------------------------------------------- |
+| _Yours?_ | [Open a PR](https://github.com/alibaba/page-agent/pulls) 🙌 |
 
 ## 🤝 Contributing
 
-We welcome contributions from the community! Follow our instructions in [CONTRIBUTING.md](CONTRIBUTING.md) for environment setup and local development.
+We welcome contributions from the community! See [CONTRIBUTING.md](CONTRIBUTING.md) for guidelines and [docs/developer-guide.md](docs/developer-guide.md) for local development workflows.
 
-Please read [Code of Conduct](CODE_OF_CONDUCT.md) before contributing.
+Please read the [maintainer's note](https://github.com/alibaba/page-agent/issues/349) on principles and current state.
+
+Contributions generated entirely by **bots or AI** without substantial human involvement will **not be accepted**.
+
+## ⚖️ License
+
+[MIT License](LICENSE)
 
 ## 👏 Acknowledgments
 
@@ -98,24 +107,15 @@ This project builds upon the excellent work of **[`browser-use`](https://github.
 ```
 DOM processing components and prompt are derived from browser-use:
 
-Browser Use
+Browser Use <https://github.com/browser-use/browser-use>
 Copyright (c) 2024 Gregor Zunic
 Licensed under the MIT License
 
-Original browser-use project: <https://github.com/browser-use/browser-use>
-
 We gratefully acknowledge the browser-use project and its contributors for their
 excellent work on web automation and DOM interaction patterns that helped make
 this project possible.
-
-Third-party dependencies and their licenses can be found in the package.json
-file and in the node_modules directory after installation.
 ```
 
-## 📄 License
-
-[MIT License](LICENSE)
-
 ---
 
 **⭐ Star this repo if you find PageAgent helpful!**

docs/CHANGELOG.md

@@ -0,0 +1,250 @@
+# Changelog
+
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## [1.7.1] - 2026-04-04
+
+### Features
+
+- **Optional `keepSemanticTags`** - Added an experimental `keepSemanticTags` config to preserve semantic structure in PageController output
+- **Per-task extension system instructions** - Extension `ExecuteConfig` now supports `systemInstruction`
+
+### Improvements
+
+- **Smarter scroll handling** - Scroll container detection and scroll direction handling are more reliable
+- **Better accessibility-aware element detection** - Interactive candidates with supported ARIA attributes and `role="listitem"` are recognized more accurately
+
+### Bug Fixes
+
+- Fixed iframe-origin filtering for extension `postMessage` listeners
+- Avoided a `currentScript` null pointer during deferred initialization
+
+## [1.7.0] - 2026-03-31
+
+- **More reliable click actions** - Click handling now reuses pointer coordinates, verifies targets with `elementFromPoint`, and behaves better on layered layouts
+- **Better mask event handling** - `SimulatorMask` now supports passthrough events when automation should not fully swallow input
+- Fixed a `SimulatorMask` memory leak
+
+## [1.6.3] - 2026-03-30
+
+### Features
+
+- **Experimental all-tabs control** - Extension can include and control all browser tabs via `experimentalIncludeAllTabs`
+
+### Improvements
+
+- **Calmer empty state motion** - Disabled the EmptyState auto-start animation in the extension UI
+- **Cleaner extension docs** - Simplified setup and tab-control documentation across the README and developer guide
+
+### Bug Fixes
+
+- Fixed new-tab detection from content scripts
+- Fixed tab deduplication and multi-window handling in the extension
+
+## [1.6.2] - 2026-03-25
+
+- **Longer task input** - The UI task input now accepts up to 1000 characters
+- **Contributor docs refresh** - Added a maintainer note and refreshed contributor-facing documentation
+- Fixed lint issues in the release pipeline
+
+## [1.6.1] - 2026-03-22
+
+- **Internal PageController action exports** - PageController actions are now exposed as internal methods for easier reuse across packages
+- **Expanded docs** - Added MCP docs and clarified project limitations and homepage details
+
+## [1.6.0] - 2026-03-21
+
+### Features
+
+- **Beta MCP support** - New `@page-agent/mcp` package lets MCP clients such as Claude Desktop and Copilot control the browser through the Page Agent extension
+- **Better iframe handling** - Same-origin iframe elements are handled more reliably during DOM extraction and actions
+- **Extension history workflows** - Users can rerun past tasks, export history sessions as JSON, and approve MCP-triggered tasks before execution
+
+### Improvements
+
+- **Unified versioning across packages** - The extension now follows the root workspace version. Changelog entries are no longer split into a separate extension version section
+- **Configurable `stepDelay`** - Agent pacing between steps is now configurable via `stepDelay`
+- **Optional API key** - `apiKey` can now be omitted for compatible deployments that do not require one
+- **Optional named tool choice** - Tool invocation can disable named tool choice for providers that behave better without it
+- **Better rich-text input support** - Improved `contenteditable` handling with better event dispatching and `execCommand` fallback for more editors
+- **More flexible DOM extraction** - `includeAttributes` now supports wildcards, `contenteditable` is included by default, and heuristically interactive elements expose more useful attributes
+- **MiniMax model support** - Added MiniMax compatibility, with the default recommendation updated to `MiniMax-M2.7`
+
+### Bug Fixes
+
+- Fixed Safari issues when `requestIdleCallback` is unavailable
+- Avoid throwing when `webgl2` initialization fails
+- Improved OpenAI-compatible request patches for GPT-5.4 chat tools and MiniMax temperature/tool-call compatibility
+- Fixed several UI polish issues in the extension and website, including cursor and layout regressions
+
+## [1.5.1] - 2026-03-05
+
+### Breaking Changes
+
+- **`data-browser-use-ignore` → `data-page-agent-ignore`** - DOM ignore attribute renamed to match the project identity
+- **Config types restructured** - `PageAgentConfig` split into `AgentConfig` + `PageAgentCoreConfig`; config definitions moved from `config/index.ts` to `types.ts`
+- **Zod v3/v4 dual support** - Libraries now accept both `zod@^3.25` and `zod@^4.0` as peer dependencies
+
+### Features
+
+- **Experimental `llms.txt` support** - Agent can fetch and include a site's `llms.txt` in context. Enable via `experimentalLlmsTxt: true`
+
+### Improvements
+
+- Default `maxSteps` changed from 20 to 40 for better for complex tasks out of the box
+- Added 400ms wait between agent steps for page reactions
+- Increased click wait time (100ms → 200ms) for more reliable interactions
+- Removed debug `console.log` statements from scroll actions
+- Reset observations on new task start
+- Improved logging across packages
+
+### Extension v0.1.9
+
+> PageAgent 1.5.1
+
+- **Advanced config panel** - New collapsible section exposing Max Steps, System Instruction, and experimental `llms.txt` toggle
+- Streamlined User Auth Token description
+- Moved testing API notice below auth token section
+
+---
+
+## [1.4.0] - 2026-02-27
+
+### Features
+
+- Update Terms of Use and Privacy Policy
+- **Robust tool-call validation** - Action inputs are now validated against tool schemas individually, producing clear error messages (e.g. `Invalid input for action "click_element_by_index"`) instead of unreadable union parse errors
+- **Primitive action input coercion** - Small models that output `{"click_element_by_index": 2}` instead of `{"click_element_by_index": {"index": 2}}` are now auto-corrected using tool schemas
+- **Qwen model updates** - Added `qwen3.5-plus` as the default free testing model; disabled `enable_thinking` for Qwen models to avoid incompatible responses
+- **Updated default LLM endpoint** - Migrated demo and extension to a new testing endpoint with legacy endpoint auto-migration
+
+### Improvements
+
+- Unified zod imports (`* as z`) across all packages for consistency
+- Better Zod error formatting with `z.prettifyError()` in LLM client
+- Exported `InvokeError` and `InvokeErrorType` as values (not just types) from `@page-agent/llms`
+- Exported `SupportedLanguage` type from `@page-agent/core`
+
+### Extension v0.1.8
+
+- **Language setting** - Added language selector (System / English / 中文) in config panel
+- **UI makeover** - New empty state with breathing glow and typing animation; ai-motion glow overlay while running; refined focus styles
+- **Testing endpoint notice** - Shows terms of use notice when using the free testing API
+- **Legacy endpoint migration** - Auto-migrates old Supabase testing endpoint to new endpoint on startup
+
+---
+
+## [1.3.0] - 2026-02-13
+
+### Breaking Changes
+
+- **Lifecycle: `stop()` vs `dispose()`** - New `stop()` method to cancel the current task while keeping the agent reusable. `dispose()` is now terminal — a disposed agent cannot be reused. This affects both `PageAgentCore` and `PanelAgentAdapter`.
+
+### Features
+
+- **Panel action button** - The panel button now morphs between Stop (■) and Close (X) based on agent status
+- **Error history** - Errors and max-step failures are now recorded in `history` as `AgentErrorEvent`, making post-task analysis more complete
+
+### Bug Fixes
+
+- **AbortError handling** - `AbortError` is no longer retried by the LLM client, and shows a clean "Task stopped" message instead of a raw error stack
+
+---
+
+## [1.2.0] - 2026-02-11
+
+### Features
+
+- **Observe Phase** - Agent now observes the page before each action, improving decision accuracy on dynamic pages
+- **Better Abort Handling** - Improved `abortSignal` support for cleaner task cancellation
+
+### Improvements
+
+- Pruned system prompts for lower token usage and faster responses
+- Improved error handling during agent steps with better error messages
+- Zod tree-shaking for smaller bundle size
+
+### Bug Fixes
+
+- Fixed indentation lost in DOM extraction caused by `trimLines`
+- Fixed `gpt-5-mini` temperature configuration
+
+---
+
+## [1.1.0] - 2026-02-02
+
+### Features
+
+- **Custom System Prompt** - New `systemPrompt` config option to customize or extend the default system prompt
+- **Chrome Extension** - Extension with multi-tab control, main-world API with token auth, and tab lifecycle management
+
+### Improvements
+
+- Renamed `include_attributes` to `includeAttributes` in PageController config (camelCase consistency)
+- Lazy-loaded mask module for faster initialization
+- Better date formatting and error messages from LLM client
+- Added `rawRequest` to step history for easier debugging
+
+### Bug Fixes
+
+- Fixed CSP errors by using local SVGs for cursor mask instead of inline styles
+- Fixed `AbortError` being incorrectly retried and shown to users
+- Fixed mask not working correctly when starting a new task after stopping a previous one
+
+---
+
+## [1.0.0] - 2026-01-19
+
+### 🎉 First Stable Release
+
+PageAgent is now ready for production use. The API is stable and breaking changes will follow semantic versioning.
+
+### Features
+
+#### Core
+
+- **PageAgent** - Main entry class with built-in UI Panel
+- **PageAgentCore** - Headless agent class for custom UI or programmatic use
+- **DOM Analysis** - Text-based DOM extraction with high-intensity dehydration
+- **LLM Support** - Works with OpenAI, Claude, DeepSeek, Qwen, and other OpenAI-compatible APIs
+- **Tool System** - Built-in tools for click, input, scroll, select, and more
+- **Custom Tools** - Extend agent capabilities with your own tools (experimental)
+- **Lifecycle Hooks** - Hook into agent execution (experimental)
+- **Instructions System** - System-level and page-level instructions to guide agent behavior
+- **Data Masking** - Transform page content before sending to LLM
+
+#### Page Controller
+
+- **Element Interactions** - Click, input text, select options, scroll
+- **Visual Mask** - Blocks user interaction during automation
+- **DOM Tree Extraction** - Efficient page structure extraction for LLM consumption
+
+#### UI
+
+- **Interactive Panel** - Real-time task progress and agent thinking display
+- **Ask User Tool** - Agent can ask users for clarification
+- **i18n Support** - English and Chinese localization
+
+### Packages
+
+| Package                       | Description                        |
+| ----------------------------- | ---------------------------------- |
+| `page-agent`                  | Main entry with UI Panel           |
+| `@page-agent/core`            | Core agent logic without UI        |
+| `@page-agent/llms`            | LLM client with retry logic        |
+| `@page-agent/page-controller` | DOM operations and visual feedback |
+| `@page-agent/ui`              | Panel and i18n                     |
+
+### Known Limitations
+
+- Single-page application only (cannot navigate across pages)
+- No visual recognition (relies on DOM structure)
+- Limited interaction support (no hover, drag-drop, canvas operations)
+- See [Limitations](https://alibaba.github.io/page-agent/docs/introduction/limitations) for details
+
+### Acknowledgments
+
+This project builds upon the excellent work of [browser-use](https://github.com/browser-use/browser-use). DOM processing components and prompts are adapted from browser-use (MIT License).

docs/CODE_OF_CONDUCT.md

@@ -16,22 +16,22 @@ appearance, race, religion, or sexual identity and orientation.
 Examples of behavior that contributes to creating a positive environment
 include:
 
-* Using welcoming and inclusive language
-* Being respectful of differing viewpoints and experiences
-* Gracefully accepting constructive criticism
-* Focusing on what is best for the community
-* Showing empathy towards other community members
+- Using welcoming and inclusive language
+- Being respectful of differing viewpoints and experiences
+- Gracefully accepting constructive criticism
+- Focusing on what is best for the community
+- Showing empathy towards other community members
 
 Examples of unacceptable behavior by participants include:
 
-* The use of sexualized language or imagery and unwelcome sexual attention or
- advances
-* Trolling, insulting/derogatory comments, and personal or political attacks
-* Public or private harassment
-* Publishing others' private information, such as a physical or electronic
- address, without explicit permission
-* Other conduct which could reasonably be considered inappropriate in a
- professional setting
+- The use of sexualized language or imagery and unwelcome sexual attention or
+  advances
+- Trolling, insulting/derogatory comments, and personal or political attacks
+- Public or private harassment
+- Publishing others' private information, such as a physical or electronic
+  address, without explicit permission
+- Other conduct which could reasonably be considered inappropriate in a
+  professional setting
 
 ## Our Responsibilities
 
@@ -85,19 +85,19 @@ available at https://www.contributor-covenant.org/version/1/4/code-of-conduct.ht
 
 有助于创造正面环境的行为包括但不限于：
 
-* 使用友好和包容性语言
-* 尊重不同的观点和经历
-* 耐心地接受建设性批评
-* 关注对社区最有利的事情
-* 友善对待其他社区成员
+- 使用友好和包容性语言
+- 尊重不同的观点和经历
+- 耐心地接受建设性批评
+- 关注对社区最有利的事情
+- 友善对待其他社区成员
 
 身为参与者不能接受的行为包括但不限于：
 
-* 使用与性有关的言语或是图像，以及不受欢迎的性骚扰
-* 捣乱/煽动/造谣的行为或进行侮辱/贬损的评论，人身攻击及政治攻击
-* 公开或私下的骚扰
-* 未经许可地发布他人的个人资料，例如住址或是电子地址
-* 其他可以被合理地认定为不恰当或者违反职业操守的行为
+- 使用与性有关的言语或是图像，以及不受欢迎的性骚扰
+- 捣乱/煽动/造谣的行为或进行侮辱/贬损的评论，人身攻击及政治攻击
+- 公开或私下的骚扰
+- 未经许可地发布他人的个人资料，例如住址或是电子地址
+- 其他可以被合理地认定为不恰当或者违反职业操守的行为
 
 ## 我们的责任
 

docs/README-zh.md

@@ -0,0 +1,110 @@
+# Page Agent
+
+<picture>
+  <source media="(prefers-color-scheme: dark)" srcset="https://img.alicdn.com/imgextra/i4/O1CN01qKig1P1FnhpFKNdi6_!!6000000000532-2-tps-1280-256.png">
+  <img alt="Page Agent Banner" src="https://img.alicdn.com/imgextra/i1/O1CN01NCMKXj1Gn4tkFTsxf_!!6000000000666-2-tps-1280-256.png">
+</picture>
+
+[![License: MIT](https://img.shields.io/badge/License-MIT-auto.svg)](https://opensource.org/licenses/MIT) [![TypeScript](https://img.shields.io/badge/%3C%2F%3E-TypeScript-%230074c1.svg)](http://www.typescriptlang.org/) [![Bundle Size](https://img.shields.io/bundlephobia/minzip/page-agent)](https://bundlephobia.com/package/page-agent) [![Downloads](https://img.shields.io/npm/dt/page-agent.svg)](https://www.npmjs.com/package/page-agent) [![GitHub stars](https://img.shields.io/github/stars/alibaba/page-agent.svg)](https://github.com/alibaba/page-agent)
+
+纯 JS 实现的 GUI agent。使用自然语言操作你的 Web 应用。无须后端、客户端、浏览器插件。
+
+🌐 [English](../README.md) | **中文**
+
+<a href="https://alibaba.github.io/page-agent/" target="_blank"><b>🚀 Demo</b></a> | <a href="https://alibaba.github.io/page-agent/docs/introduction/overview" target="_blank"><b>📖 Docs</b></a> | <a href="https://news.ycombinator.com/item?id=47264138" target="_blank"><b>📢 HN Discussion</b></a> | <a href="https://x.com/simonluvramen" target="_blank"><b>𝕏 Follow on X</b></a>
+
+<video id="demo-video" src="https://github.com/user-attachments/assets/a1f2eae2-13fb-4aae-98cf-a3fc1620a6c2" controls crossorigin muted></video>
+
+---
+
+## ✨ Features
+
+- **🎯 轻松集成**
+    - 无需 `浏览器插件` / `Python` / `无头浏览器`，纯页面内 JavaScript
+- **📖 基于文本的 DOM 操作**
+    - 无需截图，无需多模态模型或特殊权限
+- **🧠 自备 LLM**
+- 🐙 可选的 [Chrome 扩展](https://alibaba.github.io/page-agent/docs/features/chrome-extension)，支持跨页面任务
+    - [MCP Server (Beta)](https://alibaba.github.io/page-agent/docs/features/mcp-server)
+
+## 💡 应用场景
+
+- **SaaS AI Copilot** — 几行代码为你的产品加上 AI 副驾驶，无需重写后端。
+- **智能表单填写** — 把 20 次点击变成一句话。ERP、CRM、管理后台的最佳拍档。
+- **无障碍增强** — 用自然语言让任何网页无障碍。语音指令、屏幕阅读器，零门槛。
+- **跨页面 Agent** — 通过可选的 [Chrome 扩展](https://alibaba.github.io/page-agent/docs/features/chrome-extension)，让你自己的 Web Agent 跨标签页工作。
+- 通过 MCP 为现有 Agent 加入浏览器控制能力。
+
+## 🚀 快速开始
+
+### 一行代码集成
+
+通过我们免费的 Demo LLM 快速体验 PageAgent：
+
+```html
+<script src="{URL}" crossorigin="true"></script>
+```
+
+> **⚠️ 仅用于技术评估。** 该 Demo CDN 使用了免费的[测试 LLM API](https://alibaba.github.io/page-agent/docs/features/models#free-testing-api)，使用即表示您同意其[条款](https://github.com/alibaba/page-agent/blob/main/docs/terms-and-privacy.md)。
+
+| Mirrors | URL                                                                                |
+| ------- | ---------------------------------------------------------------------------------- |
+| Global  | https://cdn.jsdelivr.net/npm/page-agent@1.8.2/dist/iife/page-agent.demo.js         |
+| China   | https://registry.npmmirror.com/page-agent/1.8.2/files/dist/iife/page-agent.demo.js |
+
+在 URL 后添加 `?autoInit=false` 可只加载脚本，不自动创建 Demo Agent；之后可通过 `new window.PageAgent(...)` 手动初始化。
+
+### NPM 安装
+
+```bash
+npm install page-agent
+```
+
+```javascript
+import { PageAgent } from 'page-agent'
+
+const agent = new PageAgent({
+    model: 'qwen3.5-plus',
+    baseURL: 'https://dashscope.aliyuncs.com/compatible-mode/v1',
+    apiKey: 'YOUR_API_KEY',
+    language: 'zh-CN',
+})
+
+await agent.execute('点击登录按钮')
+```
+
+更多编程用法，请参阅 [📖 文档](https://alibaba.github.io/page-agent/docs/introduction/overview)。
+
+## 🤝 贡献
+
+欢迎社区贡献！请参阅 [CONTRIBUTING.md](../CONTRIBUTING.md) 了解安装与贡献指南。
+
+提交 issue 或 PR 之前，请先阅读[作者声明](https://github.com/alibaba/page-agent/issues/349)和[行为准则](CODE_OF_CONDUCT.md)。
+
+我们不接受未经实质性人类参与、完全由 Bot 或 Agent 自动生成的代码。
+
+## 👏 声明与致谢
+
+本项目基于 **[`browser-use`](https://github.com/browser-use/browser-use)** 的优秀工作构建。
+
+`PageAgent` 专为**客户端网页增强**设计，不是服务端自动化工具。
+
+```
+DOM processing components and prompt are derived from browser-use:
+
+Browser Use <https://github.com/browser-use/browser-use>
+Copyright (c) 2024 Gregor Zunic
+Licensed under the MIT License
+
+We gratefully acknowledge the browser-use project and its contributors for their
+excellent work on web automation and DOM interaction patterns that helped make
+this project possible.
+```
+
+## ⚖️ 许可证
+
+[MIT License](../LICENSE)
+
+---
+
+**⭐ 如果觉得 PageAgent 有用或有趣，请给项目点个星！**

docs/SECURITY.md

@@ -0,0 +1,50 @@
+# Security Policy
+
+## Supported Versions
+
+We provide security fixes on a best-effort basis for:
+
+| Version                                                   | Supported |
+| --------------------------------------------------------- | --------- |
+| `main`                                                    | Yes       |
+| Latest npm release of `page-agent` and workspace packages | Yes       |
+| Older releases                                            | No        |
+
+Please upgrade to the latest release before reporting an issue against an older build.
+
+## Reporting a Vulnerability
+
+Please do not report security vulnerabilities through public GitHub issues, discussions, or pull requests.
+
+Use GitHub's private vulnerability reporting flow:
+
+- Open https://github.com/alibaba/page-agent/security/policy
+- Click `Report a vulnerability`
+
+If private reporting is unavailable, open a minimal public issue only to request a private contact channel. Do not include exploit details.
+
+## What to Include
+
+- Affected package or feature
+- Exact version, commit, or build
+- Browser, OS, and runtime environment
+- Reproduction steps or a proof of concept
+- Expected impact
+
+## Scope
+
+We prioritize reports that show a real security boundary failure, such as:
+
+- Unauthorized access to data, tokens, or extension capabilities
+- Bypassing explicit safety constraints
+- Sensitive data exposure caused by default behavior
+
+The following usually do not qualify by themselves:
+
+- Unsafe custom integrations that ignore documented safeguards
+- Intentionally embedding secrets into client-side builds
+- Reports against unsupported older versions
+
+## Disclosure
+
+Please avoid public disclosure until maintainers have had a reasonable chance to investigate and ship a fix.

docs/developer-guide.md

@@ -0,0 +1,105 @@
+# Developer Guide
+
+This file is for local development workflows.
+
+For contribution rules and expectations, see [../CONTRIBUTING.md](../CONTRIBUTING.md).
+
+## 🚀 Quick Start
+
+### Development Setup
+
+1. **Prerequisites**
+    - `macOS` / `Linux` / `WSL`
+    - `node.js ^22.13 || >=24` with `npm >= 11`
+    - An editor that supports `ts/eslint/prettier`
+    - Make sure `eslint`, `prettier` and `commitlint` work well. Un-linted code won't pass the CI.
+
+2. **Setup**
+
+    ```bash
+    npm i            # Or `npm ci` if you don't want to change the lockfile
+    npm start        # Start website dev server
+    npm run build    # Build everything
+    ```
+
+## 📦 Project Structure
+
+This is a **monorepo** with npm workspaces.
+
+Published packages:
+
+- **Page Agent** (`packages/page-agent/`) - Main entry with built-in UI Panel (npm: `page-agent`)
+- **MCP** (`packages/mcp/`) - MCP server for browser control via Page Agent extension (npm: `@page-agent/mcp`)
+- **Core** (`packages/core/`) - Core agent logic without UI (npm: `@page-agent/core`)
+- **LLMs** (`packages/llms/`) - LLM client with reflection-before-action mental model
+- **Page Controller** (`packages/page-controller/`) - DOM operations and visual feedback, independent of LLM
+- **UI** (`packages/ui/`) - Panel and i18n, decoupled from PageAgent
+
+Applications:
+
+- **Extension** (`packages/extension/`) - Browser extension (WXT + React)
+- **Website** (`packages/website/`) - React docs, landing page, and dev playground (private)
+
+> Source-first monorepo with `npm workspaces + ts references + vite alias`. Library `package.json` exports point to `src/*.ts` during development, and point to `dist/*.js` when published. `workspaces` in root `package.json` must be in topological order.
+
+## 🤖 AGENTS.md Alias
+
+If your AI assistant does not support [AGENTS.md](https://agents.md/). Add an alias for it.
+
+## 🔧 Development Workflows
+
+### Test With Your Own LLM API
+
+- Create a `.env` file in the repo root with your LLM API config
+
+    ```env
+    LLM_MODEL_NAME=gpt-5.2
+    LLM_API_KEY=your-api-key
+    LLM_BASE_URL=https://api.your-llm-provider.com/v1
+    ```
+
+- **Ollama example** (tested on 0.15 + qwen3:14b, RTX3090 24GB):
+
+    ```env
+    LLM_BASE_URL="http://localhost:11434/v1"
+    LLM_API_KEY="NA"
+    LLM_MODEL_NAME="qwen3:14b"
+    ```
+
+    > @see https://alibaba.github.io/page-agent/docs/features/models#ollama for configuration
+
+- **Restart the dev server** to load new env vars
+- If not provided, the demo will use the free testing proxy by default. By using it, you agree to its [terms](./terms-and-privacy.md).
+
+### Extension Development
+
+```bash
+npm run dev:ext
+npm run build:ext
+```
+
+- Update `packages/extension/docs/extension_api.md` for API integration details
+
+### Testing on Other Websites
+
+- Start and serve a local `iife` script
+
+    ```bash
+    npm run dev:demo # Serving IIFE with auto rebuild at http://localhost:5174/page-agent.demo.js
+    ```
+
+- Add a new bookmark
+
+    ```javascript
+    javascript:(function(){var s=document.createElement('script');s.src=`http://localhost:5174/page-agent.demo.js?t=${Math.random()}`;s.onload=()=>console.log(%27PageAgent ready!%27);document.head.appendChild(s);})();
+    ```
+
+- Click the bookmark on any page to load Page-Agent
+
+> Warning: AK in your local `.env` will be inlined in the iife script. Be very careful when you distribute the script.
+
+### Adding Documentation
+
+Ask an AI to help you add documentation to the `website/` package. Follow the existing style.
+
+> Our AGENTS.md file and guardrails are designed for this purpose. But please be careful and review anything AI generated.

docs/terms-and-privacy.md

@@ -0,0 +1,85 @@
+# Terms of Use & Privacy
+
+**Last updated:** March 2026
+
+"We" in this document refers to the maintainers of the open-source Page Agent project (https://github.com/alibaba/page-agent). "The software" refers to Page Agent (the JavaScript library) and Page Agent Ext (the browser extension). This document covers the software itself and the testing API we provide — **not** any third-party product or service built with it.
+
+---
+
+## 1. Open Source Software Privacy
+
+The software is a **client-side only** tool with a "Bring Your Own Key" (BYOK) architecture. The software itself does **not** include any backend service. The software does **not** collect or transmit any user data on its own, and we do **not** have access to your browsing activity, page content, or task instructions through the software.
+
+All data transmission occurs **only** between your browser and the LLM provider you configure. You are in full control of which provider receives your data.
+
+The project is open source under the [MIT License](https://github.com/alibaba/page-agent/blob/main/LICENSE) and can be audited at: https://github.com/alibaba/page-agent
+
+---
+
+## 2. Testing API and Demo Disclaimer & Terms of Use
+
+To facilitate easy testing and technical evaluation, we provide a free testing LLM API. This API is used in the project homepage's live demo, the pre-built demo CDN bundles, and the browser extension's default configuration. Users may also use it independently for their own technical evaluation of the software.
+
+This free testing API is provided **strictly for technical evaluation and R&D purposes only**. It must not be used in any production environment. By using this API, you agree to the following terms:
+
+- **Permitted Use Only**: This API must be used solely for technical evaluation of the software. Any other use — including integration into other products or services, unlawful activities, violation of the underlying LLM provider's usage policies, or automated scraping at scale — is strictly prohibited.
+
+- **No Sensitive Data**: You are strictly prohibited from inputting any Personal Identifiable Information (PII), confidential business data, financial/medical records, or using this agent on web pages containing such sensitive information.
+
+- **Data Processing**: We do not store or log your prompts, webpage data (HTML), or any submitted content, nor do we use such data for model training. All data is processed in-transit and immediately discarded. We perform in-memory request validation to prevent abuse of the testing API, and temporarily process IP addresses for rate-limiting purposes. No data from these processes is retained. Data is processed through Alibaba Cloud infrastructure, which is subject to its own privacy policy.
+
+- **Independent Infrastructure**: The software is completely frontend-based with a "Bring Your Own Key" (BYOK) architecture and **no built-in backend**. To facilitate easy testing, the maintainers have purchased public cloud services from Alibaba Cloud China ([aliyun.com](https://www.aliyun.com) Function Compute and BaiLian Qwen models). This project is not a product of, nor endorsed by, Alibaba Cloud.
+
+- **No Guaranteed Availability**: This testing API may be rate-limited, degraded, or discontinued at any time without prior notice.
+
+- **"AS IS" & Limitation of Liability**: This service is provided strictly on an "AS IS" and "AS AVAILABLE" basis, without any warranties. The maintainers bear no liability for any data loss, service interruption, or legal consequences arising from your use of this service.
+
+- **Recommendation for Real Usage**: For secure and continuous usage, we strongly advise using the BYOK mode with your own legally compliant commercial LLM API keys, or connecting to local, offline models (e.g., Ollama).
+
+**Note**: This free testing LLM API processes data via servers located in Mainland China. If you are located in a region with strict data localization laws (such as the EU/EEA), please do not use this API.
+
+**Age Requirement**: The software and testing API are not intended for use by individuals under the age of 13 (or the minimum age of digital consent in your jurisdiction).
+
+---
+
+## 3. Browser Extension (Page Agent Ext)
+
+### Data Processing
+
+The extension performs DOM analysis and automation actions **locally in your browser**. Your browsing history, passwords, and form data are not accessed or collected by the extension developer.
+
+Data is transmitted to external servers **only when you initiate an automation task**. When this occurs:
+
+- Your task instructions (natural language commands)
+- Simplified page structure (cleaned HTML) of all pages under the extension's control
+
+are sent to the LLM API endpoint configured in **your settings**.
+
+> **Note:** The HTML cleaning process simplifies page structure for AI readability but **does not guarantee removal of sensitive information** (e.g., visible text, form values, or personal data on the page). Please be mindful of the page content when initiating tasks.
+
+**If you configure a third-party LLM provider** (e.g., OpenAI, Anthropic, or others), data is sent directly to that provider. Their privacy policies apply.
+
+**If you use the testing API**, the terms in [Section 2](#2-testing-api-and-demo-disclaimer--terms-of-use) apply. By using the extension with the default testing API, you agree to those terms.
+
+### Data Storage
+
+- **Local storage only**: Your configuration (API endpoint, API key, model selection) is stored in your browser via `chrome.storage.local` (or equivalent browser storage APIs)
+- **No cloud sync**: Configuration is not synced to any external server
+- **No analytics**: The extension does not include any analytics or tracking code
+
+### Your Control
+
+- The extension is open source and can be audited by anyone
+- You choose which LLM provider to use
+- You may configure your own API endpoint at any time
+- You can clear all stored data by removing the extension
+
+---
+
+## Changes
+
+We may update these terms at our discretion.
+
+## Contact
+
+https://github.com/alibaba/page-agent/issues

eslint.config.js

@@ -1,8 +1,5 @@
+import eslintReact from '@eslint-react/eslint-plugin'
 import js from '@eslint/js'
-import reactDom from 'eslint-plugin-react-dom'
-import reactHooks from 'eslint-plugin-react-hooks'
-import reactRefresh from 'eslint-plugin-react-refresh'
-import reactX from 'eslint-plugin-react-x'
 import { defineConfig, globalIgnores } from 'eslint/config'
 import globals from 'globals'
 import tseslint from 'typescript-eslint'
@@ -15,44 +12,24 @@ export default defineConfig([
 		'**/.wxt',
 		'**/.output',
 	]),
-	{
-		plugins: {
-			'react-hooks': reactHooks,
-		},
-		rules: reactHooks.configs.recommended.rules,
-	},
 	{
 		files: ['**/*.{ts,tsx}'],
 		extends: [
 			js.configs.recommended,
 			tseslint.configs.recommended,
-			// reactHooks.configs['recommended-latest'],
-			reactRefresh.configs.vite,
-
-			// Remove tseslint.configs.recommended and replace with this
 			...tseslint.configs.recommendedTypeChecked,
-			// Alternatively, use this for stricter rules
 			...tseslint.configs.strictTypeChecked,
-			// Optionally, add this for stylistic rules
 			...tseslint.configs.stylisticTypeChecked,
-
-			// Enable lint rules for React
-			reactX.configs['recommended-typescript'],
-			// Enable lint rules for React DOM
-			reactDom.configs.recommended,
+			eslintReact.configs['recommended-typescript'],
 		],
 		languageOptions: {
 			parserOptions: {
-				// project: ['./tsconfig.json'],
-				// project: ['./packages/*/tsconfig.json'],
-				// tsconfigRootDir: import.meta.dirname,
 				projectService: true,
 			},
 			ecmaVersion: 2020,
 			globals: globals.browser,
 		},
 		rules: {
-			// Add any additional rules here
 			'@typescript-eslint/no-non-null-assertion': 'off',
 			'@typescript-eslint/no-unsafe-assignment': 'off',
 			'@typescript-eslint/no-unsafe-member-access': 'off',
@@ -72,14 +49,14 @@ export default defineConfig([
 			'@typescript-eslint/no-unsafe-argument': 'off',
 			'@typescript-eslint/no-unsafe-return': 'off',
 			'@typescript-eslint/restrict-plus-operands': 'off',
-			'react-dom/no-missing-button-type': 'off',
-			'react-x/no-nested-component-definitions': 'off',
 			'@typescript-eslint/prefer-optional-chain': 'off',
 			'@typescript-eslint/use-unknown-in-catch-callback-variable': 'off',
 			'@typescript-eslint/no-unnecessary-type-parameters': 'off',
-
-			// 'require-await': 'off',
 			'@typescript-eslint/require-await': 'off',
+			'@eslint-react/dom-no-missing-button-type': 'off',
+			'@eslint-react/no-nested-component-definitions': 'off',
+			'@eslint-react/no-array-index-key': 'off',
+			'@eslint-react/dom-no-dangerously-set-innerhtml': 'off',
 		},
 	},
 ])

package.json

@@ -1,7 +1,7 @@
 {
     "name": "root",
     "private": true,
-    "version": "1.3.0",
+    "version": "1.8.2",
     "type": "module",
     "workspaces": [
         "packages/page-controller",
@@ -9,6 +9,7 @@
         "packages/llms",
         "packages/core",
         "packages/page-agent",
+        "packages/mcp",
         "packages/extension",
         "packages/website"
     ],
@@ -21,50 +22,51 @@
     },
     "homepage": "https://alibaba.github.io/page-agent/",
     "engines": {
-        "node": "^20.19.0 || ^22.13.0 || >=24"
+        "node": "^22.13.0 || >=24",
+        "npm": "^11.6.3"
     },
     "scripts": {
-        "cleanup": "rm -rf packages/*/dist",
         "start": "npm run dev --workspace=@page-agent/website",
-        "build:website": "npm run build:website --workspace=@page-agent/website",
-        "build:libs": "npm run build --workspaces --if-present",
-        "build": "npm run build:libs && npm run build:website",
+        "dev:ext": "npm run dev -w @page-agent/ext",
         "dev:demo": "npm run dev:demo --workspace=page-agent",
+        "build": "node scripts/build.js",
+        "build:libs": "node scripts/build-libs.js",
+        "build:website": "npm run build:website --workspace=@page-agent/website",
+        "build:ext": "npm run zip -w @page-agent/ext",
         "version": "node scripts/sync-version.js",
+        "postpublish": "npm run postpublish --workspaces --if-present",
+        "typecheck": "tsc --noEmit -p tsconfig.typecheck.json && tsc --noEmit -p packages/extension/tsconfig.json",
         "lint": "eslint .",
-        "prepare": "husky"
+        "ci": "node scripts/ci.js",
+        "cleanup": "rm -rf packages/*/dist && rm -rf packages/*/.output",
+        "prepare": "husky || true"
     },
     "devDependencies": {
-        "@commitlint/cli": "^20.3.1",
-        "@commitlint/config-conventional": "^20.3.1",
-        "@eslint/js": "^9.39.2",
-        "@microsoft/api-extractor": "^7.56.3",
-        "@tailwindcss/vite": "^4.1.18",
+        "@commitlint/cli": "^20.5.3",
+        "@commitlint/config-conventional": "^20.5.3",
+        "@eslint-react/eslint-plugin": "^4.2.3",
+        "@eslint/js": "^10.0.1",
+        "@microsoft/api-extractor": "^7.58.7",
+        "@tailwindcss/vite": "^4.3.0",
         "@trivago/prettier-plugin-sort-imports": "^6.0.2",
-        "@types/node": "^25.2.2",
-        "@vitejs/plugin-react-swc": "^4.1.0",
+        "@types/node": "^25.6.0",
+        "@vitejs/plugin-react": "^6.0.1",
         "chalk": "^5.6.2",
         "concurrently": "^9.2.1",
-        "dotenv": "^17.2.4",
-        "eslint": "^9.39.2",
-        "eslint-config-prettier": "^10.1.8",
-        "eslint-plugin-react-dom": "^2.12.2",
-        "eslint-plugin-react-hooks": "^7.0.1",
-        "eslint-plugin-react-refresh": "^0.5.0",
-        "eslint-plugin-react-x": "^2.12.2",
-        "globals": "^17.0.0",
+        "dotenv": "^17.4.2",
+        "eslint": "^10.2.0",
+        "globals": "^17.5.0",
         "husky": "^9.1.7",
-        "lint-staged": "^16.2.4",
-        "prettier": "^3.8.0",
-        "typescript": "^5.9.3",
-        "typescript-eslint": "^8.55.0",
-        "unplugin-dts": "^1.0.0-beta.6",
-        "vite": "^7.3.1",
-        "vite-plugin-css-injected-by-js": "^3.5.2",
-        "vite-bundle-analyzer": "^1.3.6"
+        "lint-staged": "^16.4.0",
+        "prettier": "^3.8.2",
+        "typescript": "^6.0.2",
+        "typescript-eslint": "^8.59.2",
+        "unplugin-dts": "^1.0.0",
+        "vite": "^8.0.12",
+        "vite-plugin-css-injected-by-js": "^5.0.1"
     },
     "overrides": {
-        "typescript": "^5.9.3"
+        "typescript": "^6.0.2"
     },
     "lint-staged": {
         "*.{js,ts,cjs,cts,mjs,mts}": [

packages/core/package.json

@@ -1,16 +1,26 @@
 {
     "name": "@page-agent/core",
     "private": false,
-    "version": "1.3.0",
+    "version": "1.8.2",
     "type": "module",
-    "main": "./dist/esm/page-agent-core.js",
-    "module": "./dist/esm/page-agent-core.js",
-    "types": "./dist/esm/PageAgentCore.d.ts",
+    "main": "./src/PageAgentCore.ts",
+    "types": "./src/PageAgentCore.ts",
     "exports": {
         ".": {
-            "types": "./dist/esm/PageAgentCore.d.ts",
-            "import": "./dist/esm/page-agent-core.js",
-            "default": "./dist/esm/page-agent-core.js"
+            "types": "./src/PageAgentCore.ts",
+            "default": "./src/PageAgentCore.ts"
+        }
+    },
+    "publishConfig": {
+        "main": "./dist/esm/page-agent-core.js",
+        "module": "./dist/esm/page-agent-core.js",
+        "types": "./dist/esm/PageAgentCore.d.ts",
+        "exports": {
+            ".": {
+                "types": "./dist/esm/PageAgentCore.d.ts",
+                "import": "./dist/esm/page-agent-core.js",
+                "default": "./dist/esm/page-agent-core.js"
+            }
         }
     },
     "files": [
@@ -39,13 +49,18 @@
     "scripts": {
         "build": "vite build",
         "dev:iife": "concurrently \"vite build --config vite.iife.config.js --watch\" \"npx serve dist/iife -p 5174\"",
-        "prepublishOnly": "node -e \"const fs=require('fs');['README.md','LICENSE'].forEach(f=>fs.copyFileSync('../../'+f,f))\"",
-        "postpublish": "node -e \"['README.md','LICENSE'].forEach(f=>{try{require('fs').unlinkSync(f)}catch{}})\""
+        "prepublishOnly": "node ../../scripts/pre-publish.js",
+        "postpublish": "node ../../scripts/post-publish.js"
     },
     "dependencies": {
         "chalk": "^5.6.2",
-        "zod": "^4.3.5",
-        "@page-agent/llms": "1.3.0",
-        "@page-agent/page-controller": "1.3.0"
+        "@page-agent/llms": "1.8.2",
+        "@page-agent/page-controller": "1.8.2"
+    },
+    "peerDependencies": {
+        "zod": "^3.25.0 || ^4.0.0"
+    },
+    "devDependencies": {
+        "zod": "^4.4.3"
     }
 }

packages/core/src/PageAgentCore.ts

@@ -1,18 +1,18 @@
 /**
  * Copyright (C) 2025 Alibaba Group Holding Limited
+ * Copyright (C) 2026 SimonLuvRamen
  * All rights reserved.
  */
 import { InvokeError, LLM, type Tool } from '@page-agent/llms'
 import type { BrowserState, PageController } from '@page-agent/page-controller'
 import chalk from 'chalk'
-import * as zod from 'zod'
+import * as z from 'zod/v4'
 
-import { type PageAgentConfig, type SupportedLanguage } from './config'
-import { DEFAULT_MAX_STEPS } from './config/constants'
 import SYSTEM_PROMPT from './prompts/system_prompt.md?raw'
 import { tools } from './tools'
 import type {
 	AgentActivity,
+	AgentConfig,
 	AgentReflection,
 	AgentStatus,
 	AgentStepEvent,
@@ -21,13 +21,13 @@ import type {
 	MacroToolInput,
 	MacroToolResult,
 } from './types'
-import { assert, normalizeResponse, uid, waitFor } from './utils'
+import { assert, fetchLlmsTxt, normalizeResponse, uid, waitFor } from './utils'
 
-export { type PageAgentConfig }
-export type { SupportedLanguage }
 export { tool, type PageAgentTool } from './tools'
 export type * from './types'
 
+export type PageAgentCoreConfig = AgentConfig & { pageController: PageController }
+
 /**
  * AI agent for browser automation.
  *
@@ -60,7 +60,7 @@ export type * from './types'
  */
 export class PageAgentCore extends EventTarget {
 	readonly id = uid()
-	readonly config: PageAgentConfig & { maxSteps: number }
+	readonly config: PageAgentCoreConfig & { maxSteps: number }
 	readonly tools: typeof tools
 	/** PageController for DOM operations */
 	readonly pageController: PageController
@@ -94,10 +94,10 @@ export class PageAgentCore extends EventTarget {
 		browserState: null as BrowserState | null,
 	}
 
-	constructor(config: PageAgentConfig & { pageController: PageController }) {
+	constructor(config: PageAgentCoreConfig) {
 		super()
 
-		this.config = { ...config, maxSteps: config.maxSteps || DEFAULT_MAX_STEPS }
+		this.config = { ...config, maxSteps: config.maxSteps ?? 40 }
 
 		this.#llm = new LLM(this.config)
 		this.tools = new Map(tools)
@@ -177,7 +177,7 @@ export class PageAgentCore extends EventTarget {
 	}
 
 	/**
-	 * Push a observation message to the history event stream.
+	 * Push an observation message to the history event stream.
 	 * This will be visible in <agent_history> and remain persistent in memory across steps.
 	 * @experimental @internal
 	 * @note history change will be emitted before next step starts
@@ -222,6 +222,7 @@ export class PageAgentCore extends EventTarget {
 		this.history = []
 		this.#setStatus('running')
 		this.#emitHistoryChange()
+		this.#observations = []
 
 		// Reset internal states
 		this.#states = { totalWaitTime: 0, lastURL: '', browserState: null }
@@ -248,16 +249,16 @@ export class PageAgentCore extends EventTarget {
 					{ role: 'user' as const, content: await this.#assembleUserPrompt() },
 				]
 
-				const tools = { AgentOutput: this.#packMacroTool() }
+				const macroTool = { AgentOutput: this.#packMacroTool() }
 
 				// invoke LLM
 
 				console.log(chalk.blue.bold('🧠 Thinking...'))
 				this.#emitActivity({ type: 'thinking' })
 
-				const result = await this.#llm.invoke(messages, tools, this.#abortController.signal, {
+				const result = await this.#llm.invoke(messages, macroTool, this.#abortController.signal, {
 					toolChoiceName: 'AgentOutput',
-					normalizeResponse,
+					normalizeResponse: (res) => normalizeResponse(res, this.tools),
 				})
 
 				// assemble history
@@ -342,6 +343,8 @@ export class PageAgentCore extends EventTarget {
 				await onAfterTask?.(this, result)
 				return result
 			}
+
+			await waitFor(this.config.stepDelay ?? 0.4)
 		}
 	}
 
@@ -358,24 +361,22 @@ export class PageAgentCore extends EventTarget {
 		const tools = this.tools
 
 		const actionSchemas = Array.from(tools.entries()).map(([toolName, tool]) => {
-			return zod.object({ [toolName]: tool.inputSchema }).describe(tool.description)
+			return z.object({ [toolName]: tool.inputSchema }).describe(tool.description)
 		})
 
-		const actionSchema = zod.union(
-			actionSchemas as unknown as [zod.ZodType, zod.ZodType, ...zod.ZodType[]]
-		)
+		const actionSchema = z.union(actionSchemas as unknown as [z.ZodType, z.ZodType, ...z.ZodType[]])
 
-		const macroToolSchema = zod.object({
-			// thinking: zod.string().optional(),
-			evaluation_previous_goal: zod.string().optional(),
-			memory: zod.string().optional(),
-			next_goal: zod.string().optional(),
+		const macroToolSchema = z.object({
+			// thinking: z.string().optional(),
+			evaluation_previous_goal: z.string().optional(),
+			memory: z.string().optional(),
+			next_goal: z.string().optional(),
 			action: actionSchema,
 		})
 
 		return {
 			description: 'You MUST call this tool every step!',
-			inputSchema: macroToolSchema as zod.ZodType<MacroToolInput>,
+			inputSchema: macroToolSchema as z.ZodType<MacroToolInput>,
 			execute: async (input: MacroToolInput): Promise<MacroToolResult> => {
 				// abort
 				if (this.#abortController.signal.aborted) throw new Error('AbortError')
@@ -462,14 +463,13 @@ export class PageAgentCore extends EventTarget {
 	 * Get instructions from config
 	 */
 	async #getInstructions(): Promise<string> {
-		const { instructions } = this.config
-		if (!instructions) return ''
+		const { instructions, experimentalLlmsTxt } = this.config
 
-		const systemInstructions = instructions.system?.trim()
+		const systemInstructions = instructions?.system?.trim()
 		let pageInstructions: string | undefined
 
 		const url = this.#states.browserState?.url || ''
-		if (instructions.getPageInstructions && url) {
+		if (instructions?.getPageInstructions && url) {
 			try {
 				pageInstructions = instructions.getPageInstructions(url)?.trim()
 			} catch (error) {
@@ -479,7 +479,10 @@ export class PageAgentCore extends EventTarget {
 				)
 			}
 		}
-		if (!systemInstructions && !pageInstructions) return ''
+
+		const llmsTxt = experimentalLlmsTxt && url ? await fetchLlmsTxt(url) : undefined
+
+		if (!systemInstructions && !pageInstructions && !llmsTxt) return ''
 
 		let result = '<instructions>\n'
 
@@ -491,6 +494,10 @@ export class PageAgentCore extends EventTarget {
 			result += `<page_instructions>\n${pageInstructions}\n</page_instructions>\n`
 		}
 
+		if (llmsTxt) {
+			result += `<llms_txt>\n${llmsTxt}\n</llms_txt>\n`
+		}
+
 		result += '</instructions>\n\n'
 
 		return result
@@ -505,7 +512,8 @@ export class PageAgentCore extends EventTarget {
 		// Accumulated wait time warning
 		if (this.#states.totalWaitTime >= 3) {
 			this.pushObservation(
-				`You have waited ${this.#states.totalWaitTime} seconds accumulatively. DO NOT wait any longer unless you have a good reason.`
+				`You have waited ${this.#states.totalWaitTime} seconds accumulatively. ` +
+					`DO NOT wait any longer unless you have a good reason.`
 			)
 		}
 
@@ -521,7 +529,8 @@ export class PageAgentCore extends EventTarget {
 		const remaining = this.config.maxSteps - step
 		if (remaining === 5) {
 			this.pushObservation(
-				`⚠️ Only ${remaining} steps remaining. Consider wrapping up or calling done with partial results.`
+				`⚠️ Only ${remaining} steps remaining. ` +
+					`Consider wrapping up or calling done with partial results.`
 			)
 		} else if (remaining === 2) {
 			this.pushObservation(

packages/core/src/config/constants.ts

@@ -1 +0,0 @@
-export const DEFAULT_MAX_STEPS = 20

packages/core/src/config/index.ts

@@ -1,152 +0,0 @@
-import type { LLMConfig } from '@page-agent/llms'
-import type { PageControllerConfig } from '@page-agent/page-controller'
-
-import type { PageAgentCore } from '../PageAgentCore'
-import type { PageAgentTool } from '../tools'
-import type { ExecutionResult, HistoricalEvent } from '../types'
-
-export type { LLMConfig }
-
-/** Supported UI languages */
-export type SupportedLanguage = 'en-US' | 'zh-CN'
-
-export interface AgentConfig {
-	// theme?: 'light' | 'dark'
-	language?: SupportedLanguage
-
-	/**
-	 * Maximum number of steps the agent can take per task.
-	 * @default 20
-	 */
-	maxSteps?: number
-
-	/**
-	 * Custom tools to extend PageAgent capabilities
-	 * @experimental
-	 * @note You can also override or remove internal tools by using the same name.
-	 * @see PageAgentTool
-	 *
-	 * @example
-	 * // override internal tool
-	 * import { tool } from 'page-agent'
-	 * const customTools = {
-	 * ask_user: tool({
-	 * 	description:
-	 * 		'Ask the user or parent model a question and wait for their answer. Use this if you need more information or clarification.',
-	 * 	inputSchema: zod.object({
-	 * 		question: zod.string(),
-	 * 	}),
-	 * 	execute: async function (this: PageAgent, input) {
-	 * 		const answer = await do_some_thing(input.question)
-	 * 		return "✅ Received user answer: " + answer
-	 * 	},
-	 * })
-	 * }
-	 *
-	 * @example
-	 * // remove internal tool
-	 * const customTools = {
-	 * 	ask_user: null // never ask user questions
-	 * }
-	 */
-	customTools?: Record<string, PageAgentTool | null>
-
-	/**
-	 * Instructions to guide the agent's behavior
-	 */
-	instructions?: {
-		/**
-		 * Global system-level instructions, applied to all tasks
-		 */
-		system?: string
-
-		/**
-		 * Dynamic page-level instructions callback
-		 * Called before each step to get instructions for the current page
-		 * @param url - Current page URL (window.location.href)
-		 * @returns Instructions string, or undefined/null to skip
-		 */
-		getPageInstructions?: (url: string) => string | undefined | null
-	}
-
-	/**
-	 * Lifecycle hooks for task execution.
-	 * @experimental API may change in future versions.
-	 *
-	 * All hooks receive the agent instance as first parameter.
-	 */
-
-	/**
-	 * Called before each step execution.
-	 * @experimental
-	 * @param agent - The PageAgentCore instance
-	 * @param stepCount - Current step number (0-indexed)
-	 */
-	onBeforeStep?: (agent: PageAgentCore, stepCount: number) => Promise<void> | void
-
-	/**
-	 * Called after each step execution.
-	 * @experimental
-	 * @param agent - The PageAgentCore instance
-	 * @param history - Current history of events
-	 */
-	onAfterStep?: (agent: PageAgentCore, history: HistoricalEvent[]) => Promise<void> | void
-
-	/**
-	 * Called before task execution starts.
-	 * @experimental
-	 * @param agent - The PageAgentCore instance
-	 */
-	onBeforeTask?: (agent: PageAgentCore) => Promise<void> | void
-
-	/**
-	 * Called after task execution completes (success or failure).
-	 * @experimental
-	 * @param agent - The PageAgentCore instance
-	 * @param result - The execution result
-	 */
-	onAfterTask?: (agent: PageAgentCore, result: ExecutionResult) => Promise<void> | void
-
-	/**
-	 * Called when the agent is disposed.
-	 * @experimental
-	 * @note This hook can block the disposal process if it's async.
-	 * @param agent - The PageAgentCore instance
-	 * @param reason - Optional reason for disposal
-	 */
-	onDispose?: (agent: PageAgentCore, reason?: string) => void
-
-	// page behavior hooks
-
-	/**
-	 * @experimental
-	 * Enable the experimental script execution tool that allows executing generated JavaScript code on the page.
-	 * @note Can cause unpredictable side effects.
-	 * @note May bypass some safe guards and data-masking mechanisms.
-	 */
-	experimentalScriptExecutionTool?: boolean
-
-	/**
-	 * Transform page content before sending to LLM.
-	 * Called after DOM extraction and simplification, before LLM invocation.
-	 * Use cases: inspect extraction results, modify page info, mask sensitive data.
-	 *
-	 * @param content - Simplified page content that will be sent to LLM
-	 * @returns Transformed content
-	 *
-	 * @example
-	 * // Mask phone numbers
-	 * transformPageContent: async (content) => {
-	 *   return content.replace(/1[3-9]\d{9}/g, '***********')
-	 * }
-	 */
-	transformPageContent?: (content: string) => Promise<string> | string
-
-	/**
-	 * Completely override the default system prompt.
-	 * @experimental Use with caution - incorrect prompts may break agent behavior.
-	 */
-	customSystemPrompt?: string
-}
-
-export type PageAgentConfig = LLMConfig & AgentConfig & PageControllerConfig

packages/core/src/prompts/.prettierignore

@@ -1 +0,0 @@
-system_prompt.md

packages/core/src/prompts/system_prompt.md

@@ -69,7 +69,7 @@ Strictly follow these rules while using the browser and navigating the web:
 - By default, only elements in the visible viewport are listed. Use scrolling actions if you suspect relevant content is offscreen which you need to interact with. Scroll ONLY if there are more pixels below or above the page.
 - You can scroll by a specific number of pages using the num_pages parameter (e.g., 0.5 for half page, 2.0 for two pages).
 - All the elements that are scrollable are marked with `data-scrollable` attribute. Including the scrollable distance in every directions. You can scroll *the element* in case some area are overflowed.
-- If a captcha appears, tell user you can not solve captcha. finished the task and ask user to solve it.
+- If a captcha appears, tell user you can not solve captcha. Finish the task and ask user to solve it.
 - If expected elements are missing, try scrolling, or navigating back.
 - If the page is not fully loaded, use the `wait` action.
 - Do not repeat one action for more than 3 times unless some conditions changed.
@@ -87,11 +87,11 @@ Strictly follow these rules while using the browser and navigating the web:
 
 <capability>
 - You can only handle single page app. Do not jump out of current page.
-- Do not click on link if it will open in a new page (etc. <a target="_blank">)
+- Do not click on link if it will open in a new page (e.g., <a target="_blank">)
 - It is ok to fail the task.
 	- User can be wrong. If the request of user is not achievable, inappropriate or you do not have enough information or tools to achieve it. Tell user to make a better request.
 	- Webpage can be broken. All webpages or apps have bugs. Some bug will make it hard for your job. It's encouraged to tell user the problem of current page. Your feedbacks (including failing) are valuable for user.
-	- Trying to hard can be harmful. Repeating some action back and forth or pushing for a complex procedure with little knowledge can cause unwanted result and harmful side-effects. User would rather you to complete the task with a fail.
+	- Trying too hard can be harmful. Repeating some action back and forth or pushing for a complex procedure with little knowledge can cause unwanted results and harmful side-effects. User would rather you complete the task with a fail.
 - If you do not have knowledge for the current webpage or task. You must require user to give specific instructions and detailed steps.
 </capability>
 

packages/core/src/tools/index.ts

@@ -2,7 +2,7 @@
  * Internal tools for PageAgent.
  * @note Adapted from browser-use
  */
-import * as zod from 'zod'
+import * as z from 'zod/v4'
 
 import type { PageAgentCore } from '../PageAgentCore'
 import { waitFor } from '../utils'
@@ -13,7 +13,7 @@ import { waitFor } from '../utils'
 export interface PageAgentTool<TParams = any> {
 	// name: string
 	description: string
-	inputSchema: zod.ZodType<TParams>
+	inputSchema: z.ZodType<TParams>
 	execute: (this: PageAgentCore, args: TParams) => Promise<string>
 }
 
@@ -32,9 +32,9 @@ tools.set(
 	tool({
 		description:
 			'Complete task. Text is your final response to the user — keep it concise unless the user explicitly asks for detail.',
-		inputSchema: zod.object({
-			text: zod.string(),
-			success: zod.boolean().default(true),
+		inputSchema: z.object({
+			text: z.string(),
+			success: z.boolean().default(true),
 		}),
 		execute: async function (this: PageAgentCore, input) {
 			// @note main loop will handle this one
@@ -47,8 +47,8 @@ tools.set(
 	'wait',
 	tool({
 		description: 'Wait for x seconds. Can be used to wait until the page or data is fully loaded.',
-		inputSchema: zod.object({
-			seconds: zod.number().min(1).max(10).default(1),
+		inputSchema: z.object({
+			seconds: z.number().min(1).max(10).default(1),
 		}),
 		execute: async function (this: PageAgentCore, input) {
 			// try to subtract LLM calling time from the actual wait time
@@ -67,8 +67,8 @@ tools.set(
 	tool({
 		description:
 			'Ask the user a question and wait for their answer. Use this if you need more information or clarification.',
-		inputSchema: zod.object({
-			question: zod.string(),
+		inputSchema: z.object({
+			question: z.string(),
 		}),
 		execute: async function (this: PageAgentCore, input) {
 			if (!this.onAskUser) {
@@ -84,8 +84,8 @@ tools.set(
 	'click_element_by_index',
 	tool({
 		description: 'Click element by index',
-		inputSchema: zod.object({
-			index: zod.int().min(0),
+		inputSchema: z.object({
+			index: z.int().min(0),
 		}),
 		execute: async function (this: PageAgentCore, input) {
 			const result = await this.pageController.clickElement(input.index)
@@ -98,9 +98,9 @@ tools.set(
 	'input_text',
 	tool({
 		description: 'Click and type text into an interactive input element',
-		inputSchema: zod.object({
-			index: zod.int().min(0),
-			text: zod.string(),
+		inputSchema: z.object({
+			index: z.int().min(0),
+			text: z.string(),
 		}),
 		execute: async function (this: PageAgentCore, input) {
 			const result = await this.pageController.inputText(input.index, input.text)
@@ -114,9 +114,9 @@ tools.set(
 	tool({
 		description:
 			'Select dropdown option for interactive element index by the text of the option you want to select',
-		inputSchema: zod.object({
-			index: zod.int().min(0),
-			text: zod.string(),
+		inputSchema: z.object({
+			index: z.int().min(0),
+			text: z.string(),
 		}),
 		execute: async function (this: PageAgentCore, input) {
 			const result = await this.pageController.selectOption(input.index, input.text)
@@ -131,12 +131,13 @@ tools.set(
 tools.set(
 	'scroll',
 	tool({
-		description: 'Scroll the page vertically. Use index for scroll elements (dropdowns/custom UI).',
-		inputSchema: zod.object({
-			down: zod.boolean().default(true),
-			num_pages: zod.number().min(0).max(10).optional().default(0.1),
-			pixels: zod.number().int().min(0).optional(),
-			index: zod.number().int().min(0).optional(),
+		description:
+			'Scroll vertically. Without index: scrolls the document. With index: scrolls the container at that index (or its nearest scrollable ancestor). Use index of a data-scrollable element to scroll a specific area.',
+		inputSchema: z.object({
+			down: z.boolean().default(true),
+			num_pages: z.number().min(0).max(10).optional().default(0.1),
+			pixels: z.number().int().min(0).optional(),
+			index: z.number().int().min(0).optional(),
 		}),
 		execute: async function (this: PageAgentCore, input) {
 			const result = await this.pageController.scroll({
@@ -155,11 +156,11 @@ tools.set(
 	'scroll_horizontally',
 	tool({
 		description:
-			'Scroll the page horizontally, or within a specific element by index. Useful for wide tables.',
-		inputSchema: zod.object({
-			right: zod.boolean().default(true),
-			pixels: zod.number().int().min(0),
-			index: zod.number().int().min(0).optional(),
+			'Scroll horizontally. Without index: scrolls the document. With index: scrolls the container at that index (or its nearest scrollable ancestor). Use index of a data-scrollable element to scroll a specific area.',
+		inputSchema: z.object({
+			right: z.boolean().default(true),
+			pixels: z.number().int().min(0),
+			index: z.number().int().min(0).optional(),
 		}),
 		execute: async function (this: PageAgentCore, input) {
 			const result = await this.pageController.scrollHorizontally(input)
@@ -173,8 +174,8 @@ tools.set(
 	tool({
 		description:
 			'Execute JavaScript code on the current page. Supports async/await syntax. Use with caution!',
-		inputSchema: zod.object({
-			script: zod.string(),
+		inputSchema: z.object({
+			script: z.string(),
 		}),
 		execute: async function (this: PageAgentCore, input) {
 			const result = await this.pageController.executeJavascript(input.script)

packages/core/src/types.ts

@@ -1,3 +1,165 @@
+import type { LLMConfig } from '@page-agent/llms'
+
+// @note circular dependency but okay
+import type { PageAgentCore } from './PageAgentCore'
+import type { PageAgentTool } from './tools'
+
+/** Supported UI languages */
+export type SupportedLanguage = 'en-US' | 'zh-CN'
+
+export interface AgentConfig extends LLMConfig {
+	language?: SupportedLanguage
+
+	/**
+	 * Maximum number of steps the agent can take per task.
+	 * @default 40
+	 */
+	maxSteps?: number
+
+	/**
+	 * Custom tools to extend PageAgent capabilities
+	 * @experimental
+	 * @note You can also override or remove internal tools by using the same name.
+	 * @see PageAgentTool
+	 *
+	 * @example
+	 * // override internal tool
+	 * import { z } from 'zod/v4'
+	 * import { tool } from 'page-agent'
+	 * const customTools = {
+	 * ask_user: tool({
+	 * 	description:
+	 * 		'Ask the user or parent model a question and wait for their answer. Use this if you need more information or clarification.',
+	 * 	inputSchema: z.object({
+	 * 		question: z.string(),
+	 * 	}),
+	 * 	execute: async function (this: PageAgent, input) {
+	 * 		const answer = await do_some_thing(input.question)
+	 * 		return "✅ Received user answer: " + answer
+	 * 	},
+	 * })
+	 * }
+	 *
+	 * @example
+	 * // remove internal tool
+	 * const customTools = {
+	 * 	ask_user: null // never ask user questions
+	 * }
+	 */
+	customTools?: Record<string, PageAgentTool | null>
+
+	/**
+	 * Instructions to guide the agent's behavior
+	 */
+	instructions?: {
+		/**
+		 * Global system-level instructions, applied to all tasks
+		 */
+		system?: string
+
+		/**
+		 * Dynamic page-level instructions callback
+		 * Called before each step to get instructions for the current page
+		 * @param url - Current page URL (window.location.href)
+		 * @returns Instructions string, or undefined/null to skip
+		 */
+		getPageInstructions?: (url: string) => string | undefined | null
+	}
+
+	/**
+	 * Lifecycle hooks for task execution.
+	 * @experimental API may change in future versions.
+	 *
+	 * All hooks receive the agent instance as first parameter.
+	 */
+
+	/**
+	 * Called before each step execution.
+	 * @experimental
+	 * @param agent - The PageAgentCore instance
+	 * @param stepCount - Current step number (0-indexed)
+	 */
+	onBeforeStep?: (agent: PageAgentCore, stepCount: number) => Promise<void> | void
+
+	/**
+	 * Called after each step execution.
+	 * @experimental
+	 * @param agent - The PageAgentCore instance
+	 * @param history - Current history of events
+	 */
+	onAfterStep?: (agent: PageAgentCore, history: HistoricalEvent[]) => Promise<void> | void
+
+	/**
+	 * Called before task execution starts.
+	 * @experimental
+	 * @param agent - The PageAgentCore instance
+	 */
+	onBeforeTask?: (agent: PageAgentCore) => Promise<void> | void
+
+	/**
+	 * Called after task execution completes (success or failure).
+	 * @experimental
+	 * @param agent - The PageAgentCore instance
+	 * @param result - The execution result
+	 */
+	onAfterTask?: (agent: PageAgentCore, result: ExecutionResult) => Promise<void> | void
+
+	/**
+	 * Called when the agent is disposed.
+	 * @experimental
+	 * @note This hook can block the disposal process if it's async.
+	 * @param agent - The PageAgentCore instance
+	 * @param reason - Optional reason for disposal
+	 */
+	onDispose?: (agent: PageAgentCore, reason?: string) => void
+
+	// page behavior hooks
+
+	/**
+	 * @experimental
+	 * Enable the experimental script execution tool that allows executing generated JavaScript code on the page.
+	 * @note Can cause unpredictable side effects.
+	 * @note May bypass some safe guards and data-masking mechanisms.
+	 */
+	experimentalScriptExecutionTool?: boolean
+
+	/**
+	 * @experimental
+	 * Fetch /llms.txt from current site origin and include as context.
+	 * Only fetched once per origin per task.
+	 * @default false
+	 */
+	experimentalLlmsTxt?: boolean
+
+	/**
+	 * Transform page content before sending to LLM.
+	 * Called after DOM extraction and simplification, before LLM invocation.
+	 * Use cases: inspect extraction results, modify page info, mask sensitive data.
+	 *
+	 * @param content - Simplified page content that will be sent to LLM
+	 * @returns Transformed content
+	 *
+	 * @example
+	 * // Mask phone numbers
+	 * transformPageContent: async (content) => {
+	 *   return content.replace(/1[3-9]\d{9}/g, '***********')
+	 * }
+	 */
+	transformPageContent?: (content: string) => Promise<string> | string
+
+	/**
+	 * Completely override the default system prompt.
+	 * @experimental Use with caution - incorrect prompts may break agent behavior.
+	 */
+	customSystemPrompt?: string
+
+	/**
+	 * Delay between steps in seconds.
+	 * @default 0.4
+	 */
+	stepDelay?: number
+}
+
 /**
  * Agent reflection state - the reflection-before-action model
  *

packages/core/src/utils/autoFixer.ts

@@ -1,4 +1,10 @@
+import { InvokeError, InvokeErrorTypes } from '@page-agent/llms'
 import chalk from 'chalk'
+import * as z from 'zod/v4'
+
+import type { PageAgentTool } from '../tools'
+
+const log = console.log.bind(console, chalk.yellow('[autoFixer]'))
 
 /**
  * Normalize LLM response and fix common format issues.
@@ -9,10 +15,11 @@ import chalk from 'chalk'
  * - Arguments wrapped as double JSON string
  * - Nested function call format
  * - Missing action field (fallback to wait)
+ * - Primitive action input for single-field tools (e.g. `{"click_element_by_index": 2}`)
  * - etc.
  */
-export function normalizeResponse(response: any): any {
-	let resolvedArguments = null as any
+export function normalizeResponse(response: any, tools?: Map<string, PageAgentTool>): any {
+	let resolvedArguments: any
 
 	const choice = (response as { choices?: Choice[] }).choices?.[0]
 	if (!choice) throw new Error('No choices in response')
@@ -29,7 +36,7 @@ export function normalizeResponse(response: any): any {
 
 		// case: sometimes the model only returns the action level
 		if (toolCall.function.name && toolCall.function.name !== 'AgentOutput') {
-			console.log(chalk.yellow(`[normalizeResponse] #1: fixing tool_call`))
+			log(`#1: fixing tool_call`)
 			resolvedArguments = { action: safeJsonParse(resolvedArguments) }
 		}
 	} else {
@@ -42,13 +49,13 @@ export function normalizeResponse(response: any): any {
 
 				// case: sometimes the content json includes upper level wrapper
 				if (resolvedArguments?.name === 'AgentOutput') {
-					console.log(chalk.yellow(`[normalizeResponse] #2: fixing tool_call`))
+					log(`#2: fixing tool_call`)
 					resolvedArguments = safeJsonParse(resolvedArguments.arguments)
 				}
 
 				// case: sometimes even 2-levels of wrapping
 				if (resolvedArguments?.type === 'function') {
-					console.log(chalk.yellow(`[normalizeResponse] #3: fixing tool_call`))
+					log(`#3: fixing tool_call`)
 					resolvedArguments = safeJsonParse(resolvedArguments.function.arguments)
 				}
 
@@ -61,7 +68,7 @@ export function normalizeResponse(response: any): any {
 					!resolvedArguments?.next_goal &&
 					!resolvedArguments?.thinking
 				) {
-					console.log(chalk.yellow(`[normalizeResponse] #4: fixing tool_call`))
+					log(`#4: fixing tool_call`)
 					resolvedArguments = { action: safeJsonParse(resolvedArguments) }
 				}
 			} else {
@@ -78,10 +85,15 @@ export function normalizeResponse(response: any): any {
 		resolvedArguments.action = safeJsonParse(resolvedArguments.action)
 	}
 
+	// validate and fix action input using tool schemas
+	if (resolvedArguments.action && tools) {
+		resolvedArguments.action = validateAction(resolvedArguments.action, tools)
+	}
+
 	// fix incomplete formats
 	if (!resolvedArguments.action) {
-		console.log(chalk.yellow(`[normalizeResponse] #5: fixing tool_call`))
-		resolvedArguments.action = { name: 'wait', input: { seconds: 1 } }
+		log(`#5: fixing tool_call`)
+		resolvedArguments.action = { wait: { seconds: 1 } }
 	}
 
 	// pack back to standard format
@@ -108,6 +120,53 @@ export function normalizeResponse(response: any): any {
 	}
 }
 
+/**
+ * Validate action against tool schemas. Provides clear error messages
+ * instead of letting the union schema produce unreadable errors.
+ *
+ * Also coerces primitive inputs for single-field tools:
+ * e.g. `{"click_element_by_index": 2}` → `{"click_element_by_index": {"index": 2}}`
+ */
+function validateAction(action: any, tools: Map<string, PageAgentTool>): any {
+	if (typeof action !== 'object' || action === null) return action
+
+	const toolName = Object.keys(action)[0]
+	if (!toolName) return action
+
+	const tool = tools.get(toolName)
+	if (!tool) {
+		const available = Array.from(tools.keys()).join(', ')
+		throw new InvokeError(
+			InvokeErrorTypes.INVALID_TOOL_ARGS,
+			`Unknown action "${toolName}". Available: ${available}`
+		)
+	}
+
+	let value = action[toolName]
+	const schema = tool.inputSchema
+
+	// coerce primitive input for single-field tools
+	if (schema instanceof z.ZodObject && value !== null && typeof value !== 'object') {
+		const requiredKey = Object.keys(schema.shape).find(
+			(k) => !(schema.shape as Record<string, z.ZodType>)[k].safeParse(undefined).success
+		)
+		if (requiredKey) {
+			log(`coercing primitive action input for "${toolName}"`)
+			value = { [requiredKey]: value }
+		}
+	}
+
+	const result = schema.safeParse(value)
+	if (!result.success) {
+		throw new InvokeError(
+			InvokeErrorTypes.INVALID_TOOL_ARGS,
+			`Invalid input for action "${toolName}": ${z.prettifyError(result.error)}`
+		)
+	}
+
+	return { [toolName]: result.data }
+}
+
 /**
  * Safely parse JSON, return original input if not json.
  */

packages/core/src/utils/index.ts

@@ -1,6 +1,6 @@
 import chalk from 'chalk'
 
-export { normalizeResponse } from './autoFixer'
+export * from './autoFixer'
 
 export async function waitFor(seconds: number): Promise<void> {
 	await new Promise((resolve) => setTimeout(resolve, seconds * 1000))
@@ -31,7 +31,7 @@ export function randomID(existingIDs?: string[]): string {
 		id = Math.random().toString(36).substring(2, 11)
 		tryCount++
 		if (tryCount > MAX_TRY) {
-			throw new Error('randomID: too many try')
+			throw new Error('randomID: too many tries')
 		}
 	}
 
@@ -57,6 +57,43 @@ export function uid() {
 	return id
 }
 
+const llmsTxtCache = new Map<string, string | null>()
+
+/** Fetch /llms.txt for a URL's origin. Cached per origin, `null` = tried and not found. */
+export async function fetchLlmsTxt(url: string): Promise<string | null> {
+	let origin: string
+	try {
+		origin = new URL(url).origin
+	} catch {
+		return null // Invalid URL
+	}
+	// about:blank, data:, file:
+	if (origin === 'null') return null
+
+	if (llmsTxtCache.has(origin)) return llmsTxtCache.get(origin)!
+
+	const endpoint = `${origin}/llms.txt`
+	let result: string | null = null
+	try {
+		console.log(chalk.gray(`[llms.txt] Fetching ${endpoint}`))
+		const res = await fetch(endpoint, { signal: AbortSignal.timeout(3000) })
+		if (res.ok) {
+			result = await res.text()
+			console.log(chalk.green(`[llms.txt] Found (${result.length} chars)`))
+			if (result.length > 1000) {
+				console.log(chalk.yellow(`[llms.txt] Truncating to 1000 chars`))
+				result = truncate(result, 1000)
+			}
+		} else {
+			console.debug(chalk.gray(`[llms.txt] ${res.status} for ${endpoint}`))
+		}
+	} catch (e) {
+		console.debug(chalk.gray(`[llms.txt] not found for ${endpoint}`), e)
+	}
+	llmsTxtCache.set(origin, result)
+	return result
+}
+
 /**
  * Simple assertion function that throws an error if the condition is falsy
  * @param condition - The condition to assert

packages/core/tsconfig.dts.json

@@ -1,9 +0,0 @@
-{
-    "extends": "./tsconfig.json",
-    "compilerOptions": {
-        // @workaround DTS bug
-        // dts do not work with monorepo path mapping
-        // disable path mapping for it
-        "paths": {}
-    }
-}

packages/core/tsconfig.json

@@ -1,22 +1,8 @@
 {
     "extends": "../../tsconfig.base.json",
     "compilerOptions": {
-        "tsBuildInfoFile": "./node_modules/.tmp/tsconfig.tsbuildinfo",
-        "noEmit": false,
-        "allowImportingTsExtensions": false,
-        "baseUrl": ".",
-        "outDir": "dist",
-        "paths": {
-            //
-            "@page-agent/llms": ["../llms/src/index.ts"],
-            "@page-agent/page-controller": ["../page-controller/src/PageController.ts"]
-        }
+        "tsBuildInfoFile": "./node_modules/.tmp/tsconfig.tsbuildinfo"
     },
-    "include": ["**/*.ts"],
-    "exclude": ["dist", "node_modules"],
-    "references": [
-        //
-        { "path": "../llms" },
-        { "path": "../page-controller" }
-    ]
+    "include": ["src/**/*.ts"],
+    "exclude": ["dist", "node_modules"]
 }

packages/core/vite.config.js

@@ -11,13 +11,18 @@ const __dirname = dirname(fileURLToPath(import.meta.url))
 export default defineConfig({
 	clearScreen: false,
 	plugins: [
-		dts({ tsconfigPath: './tsconfig.dts.json', bundleTypes: true }),
+		dts({
+			bundleTypes: true,
+			compilerOptions: {
+				composite: true,
+				noEmit: false,
+				emitDeclarationOnly: true,
+				declaration: true,
+			},
+		}),
 		cssInjectedByJsPlugin({ relativeCSSInjection: true }),
 	],
 	publicDir: false,
-	esbuild: {
-		keepNames: true,
-	},
 	build: {
 		lib: {
 			entry: resolve(__dirname, 'src/PageAgentCore.ts'),
@@ -30,6 +35,7 @@ export default defineConfig({
 			external: [
 				'chalk',
 				'zod',
+				'zod/v4',
 				// all the internal packages
 				/^@page-agent\//,
 			],

packages/extension/.prettierignore

@@ -1,2 +0,0 @@
-.wxt
-src/components/ui

packages/extension/PRIVACY.md

@@ -1,60 +1,5 @@
 # Privacy Policy for Page Agent Extension
 
-**Last updated:** February 2026
+This document has moved. Please see our full **[Terms of Use & Privacy](../../docs/terms-and-privacy.md)**.
 
-## Overview
-
-Page Agent Extension is a browser automation tool that uses AI to help you interact with web pages. This policy explains what data is processed and under what circumstances.
-
-## Data Processing
-
-### Local Processing
-
-The extension performs DOM analysis and automation actions **locally in your browser**. Your browsing history, passwords, and form data are not accessed or collected by the extension developer.
-
-### Data Transmission
-
-Data is transmitted to external servers **only when you initiate an automation task**. When this occurs:
-
-- Your task instructions (natural language commands)
-- Simplified page structure (cleaned DOM) of all pages under the extension's control
-
-are sent to the LLM API endpoint configured in **your settings**.
-
-> **Note:** The DOM cleaning process simplifies page structure for AI readability but **does not guarantee removal of sensitive information** (e.g., visible text, form values, or personal data on the page). Please be mindful of the page content when initiating tasks.
-
-**If you configure a third-party LLM provider** (e.g., OpenAI, Anthropic, or others), data is sent directly to that provider. Their privacy policies apply.
-
-**If you use our testing endpoint**, your requests are proxied to [DeepSeek](https://deepseek.com) for AI processing. Regarding this test endpoint:
-
-- This endpoint is provided for evaluation purposes only and is not recommended for production or daily use
-- The free model and their service providers may change at any time without prior notice
-- We do **not** store your task content, page content, or visited URLs
-- Minimal logging (timestamps, request metadata, IP addresses) may be collected for abuse prevention and service stability
-- DeepSeek's [Privacy Policy](https://cdn.deepseek.com/policies/en-US/deepseek-privacy-policy.html) applies to their processing of your requests
-
-## Data Storage
-
-- **Local storage only**: Your configuration (API endpoint, API key, model selection) is stored in your browser via `chrome.storage.local`
-- **No cloud sync**: Configuration is not synced to any external server
-- **No analytics**: The extension does not include any analytics or tracking code
-
-## Your Control
-
-- The extension is open source and can be audited by anyone
-- You choose which LLM provider to use
-- You may configure your own API endpoint at any time
-- You can clear all stored data by removing the extension
-
-## Changes to This Policy
-
-We may update this policy as the extension evolves. Significant changes will be noted in the extension's release notes.
-
-## Contact
-
-For questions about this privacy policy:
-https://github.com/alibaba/page-agent/issues
-
----
-
-Source code: https://github.com/alibaba/page-agent
+Online: https://github.com/alibaba/page-agent/blob/main/docs/terms-and-privacy.md

packages/extension/docs/description.txt

@@ -1,30 +0,0 @@
-AI-powered browser automation. Control web pages with natural language.
-
-Page Agent Ext — AI-Powered Browser Automation
-
-🌟 What is Page Agent Ext?
-
-Page Agent Ext brings AI-powered automation to your browser. Built on the open-source Page Agent framework, it lets you control web pages across multiple tabs using natural language — no scripting required.
-
-🌟 Key Features:
-
-- Natural Language Control — Command your browser in plain language, no code needed
-- Cross-Tab Automation — Seamlessly operate across multiple tabs and pages
-- Smart HTML Cleaning — Intelligently extracts and simplifies page structure for accurate AI understanding
-- Bring Your Own LLM — Use OpenAI, Anthropic, or any compatible API with full data control
-- Privacy-First — Zero data collection; all data flows directly to your chosen LLM provider
-- Open Source — MIT licensed, built on the Page Agent framework with full transparency
-
-🌟 How It Works & Privacy:
-
-Page Agent Ext performs DOM analysis locally in your browser. When you initiate a task, sanitized page structure is sent to the LLM API you configure. Your data is never collected or stored by us.
-
-- Your API Key — Configure your own LLM API (OpenAI, Anthropic, etc.). Data goes directly to your provider
-- Test API — A free test endpoint is available for evaluation; we recommend your own key for regular use
-
-Privacy policy: https://github.com/alibaba/page-agent/blob/main/packages/extension/PRIVACY.md
-
-🌟 Open Source:
-
-This project is MIT licensed. Review the code, verify privacy claims, or extend it for your needs:
-https://github.com/alibaba/page-agent

packages/extension/docs/description_zh.txt

@@ -1,30 +0,0 @@
-AI 驱动的浏览器自动化助手，用自然语言控制网页。
-
-Page Agent Ext — AI 驱动的浏览器自动化助手
-
-🌟 什么是 Page Agent Ext？
-
-Page Agent Ext 为浏览器带来 AI 自动化能力。基于开源的 Page Agent 框架，你可以用自然语言跨标签页控制网页，无需编写任何脚本。
-
-🌟 核心特性：
-
-- 自然语言控制 — 用日常语言指挥浏览器，无需编程
-- 跨标签页操作 — 在多个标签页之间无缝切换和操控
-- HTML 智能清洗 — 智能提取和精简页面结构，让 AI 准确理解网页内容
-- 使用你自己的模型 — 支持 OpenAI、Anthropic 或任何兼容 API，数据完全自主可控
-- 隐私优先 — 零数据收集，所有数据直接发送到你配置的 LLM 服务商
-- 开源透明 — MIT 协议，基于 Page Agent 开源框架，代码完全公开
-
-🌟 工作原理与隐私：
-
-Page Agent Ext 在浏览器本地进行 DOM 分析。当你发起任务时，经清洗的页面结构会发送到你配置的 LLM API。我们不会收集或存储你的任何数据。
-
-- 你的 API Key — 配置你自己的 LLM API（OpenAI、Anthropic 等），数据直接发送到你的服务商
-- 测试 API — 提供免费测试端点供体验，日常使用建议配置自己的 Key
-
-隐私政策：https://github.com/alibaba/page-agent/blob/main/packages/extension/PRIVACY.md
-
-🌟 开源项目：
-
-MIT 协议开源。查看源码、验证隐私承诺，或按需扩展：
-https://github.com/alibaba/page-agent

packages/extension/docs/extension_api.md

@@ -42,33 +42,28 @@ localStorage.setItem('PageAgentExtUserAuthToken', 'your-token')
 ## Quick Start
 
 ```typescript
-import type {
-  AgentActivity,
-  AgentStatus,
-  ExecutionResult,
-  HistoricalEvent,
-} from '@page-agent/core'
+import type { AgentActivity, AgentStatus, ExecutionResult, HistoricalEvent } from '@page-agent/core'
 
 // Wait for extension injection (up to 1 second)
 async function waitForExtension(timeout = 1000): Promise<boolean> {
-  const start = Date.now()
-  while (Date.now() - start < timeout) {
-    if (window.PAGE_AGENT_EXT) return true
-    await new Promise((r) => setTimeout(r, 100))
-  }
-  return false
+    const start = Date.now()
+    while (Date.now() - start < timeout) {
+        if (window.PAGE_AGENT_EXT) return true
+        await new Promise((r) => setTimeout(r, 100))
+    }
+    return false
 }
 
 // Usage
 if (await waitForExtension()) {
-  const result = await window.PAGE_AGENT_EXT!.execute('Click the login button', {
-    baseURL: 'https://api.openai.com/v1',
-    apiKey: 'your-api-key',
-    model: 'gpt-5.2',
-    onStatusChange: (status) => console.log('Status:', status),
-    onActivity: (activity) => console.log('Activity:', activity),
-  })
-  console.log('Result:', result)
+    const result = await window.PAGE_AGENT_EXT!.execute('Click the login button', {
+        baseURL: 'https://api.openai.com/v1',
+        apiKey: 'your-api-key',
+        model: 'gpt-5.2',
+        onStatusChange: (status) => console.log('Status:', status),
+        onActivity: (activity) => console.log('Activity:', activity),
+    })
+    console.log('Result:', result)
 }
 ```
 
@@ -90,10 +85,10 @@ Execute one agent task.
 
 Parameters:
 
-| Name | Type | Required | Description |
-| ---- | ---- | -------- | ----------- |
-| `task` | `string` | Yes | Task description |
-| `config` | `ExecuteConfig` | Yes | LLM settings, options, and callbacks |
+| Name     | Type            | Required | Description                          |
+| -------- | --------------- | -------- | ------------------------------------ |
+| `task`   | `string`        | Yes      | Task description                     |
+| `config` | `ExecuteConfig` | Yes      | LLM settings, options, and callbacks |
 
 Returns: `Promise<ExecutionResult>`
 
@@ -106,24 +101,28 @@ Stop the current task.
 Install `@page-agent/core` for complete types:
 
 ```typescript
-import type {
-  AgentActivity,
-  AgentStatus,
-  ExecutionResult,
-  HistoricalEvent,
-} from '@page-agent/core'
+import type { AgentActivity, AgentStatus, ExecutionResult, HistoricalEvent } from '@page-agent/core'
 
 export interface ExecuteConfig {
-  baseURL: string
-  apiKey: string
-  model: string
+    baseURL: string
+    model: string
+    apiKey?: string
 
-  // Include the initial tab where page JS starts. Default: true.
-  includeInitialTab?: boolean
+    // Global system-level instructions for the agent.
+    // Equivalent to AgentConfig.instructions.system.
+    systemInstruction?: string
 
-  onStatusChange?: (status: AgentStatus) => void
-  onActivity?: (activity: AgentActivity) => void
-  onHistoryUpdate?: (history: HistoricalEvent[]) => void
+    // Include the initial tab where page JS starts. Default: true.
+    includeInitialTab?: boolean
+
+    // Control all unpinned tabs in the window instead of only the tab group.
+    // When enabled, agent sees and can switch to every non-pinned tab.
+    // Default: false. Experimental.
+    experimentalIncludeAllTabs?: boolean
+
+    onStatusChange?: (status: AgentStatus) => void
+    onActivity?: (activity: AgentActivity) => void
+    onHistoryUpdate?: (history: HistoricalEvent[]) => void
 }
 
 export type Execute = (task: string, config: ExecuteConfig) => Promise<ExecutionResult>
@@ -139,31 +138,31 @@ type AgentStatus = 'idle' | 'running' | 'completed' | 'error'
 
 ```typescript
 type AgentActivity =
-  | { type: 'thinking' }
-  | { type: 'executing'; tool: string; input: unknown }
-  | { type: 'executed'; tool: string; input: unknown; output: string; duration: number }
-  | { type: 'retrying'; attempt: number; maxAttempts: number }
-  | { type: 'error'; message: string }
+    | { type: 'thinking' }
+    | { type: 'executing'; tool: string; input: unknown }
+    | { type: 'executed'; tool: string; input: unknown; output: string; duration: number }
+    | { type: 'retrying'; attempt: number; maxAttempts: number }
+    | { type: 'error'; message: string }
 ```
 
 `HistoricalEvent`
 
 ```typescript
 type HistoricalEvent =
-  | { type: 'step'; stepIndex: number; reflection: AgentReflection; action: Action }
-  | { type: 'observation'; content: string }
-  | { type: 'user_takeover' }
-  | { type: 'retry'; message: string; attempt: number; maxAttempts: number }
-  | { type: 'error'; message: string; rawResponse?: unknown }
+    | { type: 'step'; stepIndex: number; reflection: AgentReflection; action: Action }
+    | { type: 'observation'; content: string }
+    | { type: 'user_takeover' }
+    | { type: 'retry'; message: string; attempt: number; maxAttempts: number }
+    | { type: 'error'; message: string; rawResponse?: unknown }
 ```
 
 `ExecutionResult`
 
 ```typescript
 interface ExecutionResult {
-  success: boolean
-  data: string
-  history: HistoricalEvent[]
+    success: boolean
+    data: string
+    history: HistoricalEvent[]
 }
 ```
 
@@ -173,15 +172,15 @@ interface ExecutionResult {
 
 ```typescript
 const result = await window.PAGE_AGENT_EXT!.execute(
-  'Fill in the email field with test@example.com and click Submit',
-  {
-    baseURL: 'https://api.openai.com/v1',
-    apiKey: process.env.OPENAI_API_KEY!,
-    model: 'gpt-5.2',
-    includeInitialTab: false, // Optional: exclude current tab
-    onStatusChange: (status) => console.log(status),
-    onActivity: (activity) => console.log(activity),
-  }
+    'Fill in the email field with test@example.com and click Submit',
+    {
+        baseURL: 'https://api.openai.com/v1',
+        apiKey: process.env.OPENAI_API_KEY!,
+        model: 'gpt-5.2',
+        includeInitialTab: false, // Optional: exclude current tab
+        onStatusChange: (status) => console.log(status),
+        onActivity: (activity) => console.log(activity),
+    }
 )
 ```
 
@@ -196,31 +195,30 @@ window.PAGE_AGENT_EXT!.stop()
 If you are not importing `@page-agent/core`, add:
 
 ```typescript
-import type {
-  AgentActivity,
-  AgentStatus,
-  ExecutionResult,
-  HistoricalEvent,
-} from '@page-agent/core'
+import type { AgentActivity, AgentStatus, ExecutionResult, HistoricalEvent } from '@page-agent/core'
 
 interface ExecuteConfig {
-  baseURL: string
-  apiKey: string
-  model: string
-  includeInitialTab?: boolean
-  onStatusChange?: (status: AgentStatus) => void
-  onActivity?: (activity: AgentActivity) => void
-  onHistoryUpdate?: (history: HistoricalEvent[]) => void
+    baseURL: string
+    model: string
+    apiKey?: string
+
+    systemInstruction?: string
+
+    includeInitialTab?: boolean
+    experimentalIncludeAllTabs?: boolean
+    onStatusChange?: (status: AgentStatus) => void
+    onActivity?: (activity: AgentActivity) => void
+    onHistoryUpdate?: (history: HistoricalEvent[]) => void
 }
 
 declare global {
-  interface Window {
-    PAGE_AGENT_EXT_VERSION?: string
-    PAGE_AGENT_EXT?: {
-      version: string
-      execute: Execute
-      stop: () => void
+    interface Window {
+        PAGE_AGENT_EXT_VERSION?: string
+        PAGE_AGENT_EXT?: {
+            version: string
+            execute: Execute
+            stop: () => void
+        }
     }
-  }
 }
 ```

packages/extension/package.json

@@ -1,7 +1,7 @@
 {
     "name": "@page-agent/ext",
     "private": true,
-    "version": "0.1.7",
+    "version": "1.8.2",
     "type": "module",
     "scripts": {
         "dev": "wxt",
@@ -16,34 +16,36 @@
         "@radix-ui/react-separator": "^1.1.8",
         "@radix-ui/react-slot": "^1.2.4",
         "@radix-ui/react-switch": "^1.2.6",
-        "@radix-ui/react-tooltip": "^1.2.8",
-        "@types/chrome": "^0.1.34",
-        "@types/react": "^19.2.13",
-        "@types/react-dom": "^19.2.1",
-        "@wxt-dev/module-react": "^1.1.5",
+        "@tailwindcss/vite": "^4.3.0",
+        "@types/chrome": "^0.1.42",
+        "@types/react": "^19.2.14",
+        "@types/react-dom": "^19.2.3",
+        "@wxt-dev/module-react": "^1.2.2",
         "class-variance-authority": "^0.7.1",
         "clsx": "^2.1.1",
         "idb": "^8.0.3",
-        "lucide-react": "^0.563.0",
-        "motion": "^12.34.0",
+        "lucide-react": "^1.14.0",
+        "motion": "^12.38.0",
         "next-themes": "^0.4.6",
-        "react": "^19.2.4",
-        "react-dom": "^19.2.4",
+        "react": "^19.2.6",
+        "react-dom": "^19.2.6",
         "rough-notation": "^0.5.1",
-        "simple-icons": "^16.8.0",
+        "simple-icons": "^16.19.0",
         "sonner": "^2.0.7",
-        "tailwind-merge": "^3.4.0",
-        "tailwindcss": "^4.1.14",
+        "tailwind-merge": "^3.6.0",
+        "tailwindcss": "^4.3.0",
         "tw-animate-css": "^1.4.0",
-        "wxt": "^0.20.14"
+        "wxt": "^0.20.25"
     },
     "dependencies": {
-        "@page-agent/core": "1.3.0",
-        "@page-agent/llms": "1.3.0",
-        "@page-agent/page-controller": "1.3.0",
-        "@page-agent/ui": "1.3.0",
+        "@page-agent/core": "1.8.2",
+        "@page-agent/llms": "1.8.2",
+        "@page-agent/page-controller": "1.8.2",
+        "@page-agent/ui": "1.8.2",
         "ai-motion": "^0.4.8",
-        "chalk": "^5.6.2",
-        "zod": "^4.3.5"
+        "chalk": "^5.6.2"
+    },
+    "peerDependencies": {
+        "zod": "^3.25.0 || ^4.0.0"
     }
 }

packages/extension/public/_locales/en/messages.json

@@ -1,11 +1,11 @@
 {
-	"extName": {
-		"message": "Page Agent Ext"
-	},
-	"extDescription": {
-		"message": "AI-powered browser automation assistant. Control web pages with natural language."
-	},
-	"extActionTitle": {
-		"message": "Open Page Agent"
-	}
+    "extName": {
+        "message": "Page Agent Ext"
+    },
+    "extDescription": {
+        "message": "AI-powered browser automation assistant. Control web pages with natural language."
+    },
+    "extActionTitle": {
+        "message": "Open Page Agent"
+    }
 }

packages/extension/public/_locales/zh_CN/messages.json

@@ -1,11 +1,11 @@
 {
-	"extName": {
-		"message": "Page Agent Ext"
-	},
-	"extDescription": {
-		"message": "AI 驱动的浏览器自动化助手，用自然语言控制网页。"
-	},
-	"extActionTitle": {
-		"message": "打开 Page Agent"
-	}
+    "extName": {
+        "message": "Page Agent Ext"
+    },
+    "extDescription": {
+        "message": "AI 驱动的浏览器自动化助手，用自然语言控制网页。"
+    },
+    "extActionTitle": {
+        "message": "打开 Page Agent"
+    }
 }

packages/extension/src/agent/.prettierignore

@@ -1 +0,0 @@
-system_prompt.md

packages/extension/src/agent/MultiPageAgent.ts

@@ -1,4 +1,4 @@
-import { type PageAgentConfig, PageAgentCore } from '@page-agent/core'
+import { type AgentConfig, PageAgentCore } from '@page-agent/core'
 
 import { RemotePageController } from './RemotePageController'
 import { TabsController } from './TabsController'
@@ -11,13 +11,18 @@ function detectLanguage(): 'en-US' | 'zh-CN' {
 	return lang.startsWith('zh') ? 'zh-CN' : 'en-US'
 }
 
+interface MultiPageAgentConfig extends AgentConfig {
+	includeInitialTab?: boolean
+	experimentalIncludeAllTabs?: boolean
+}
+
 /**
  * MultiPageAgent
  * - use with extension
  * - can be used from a side panel or a content script
  */
 export class MultiPageAgent extends PageAgentCore {
-	constructor(config: Omit<PageAgentConfig, 'pageController'> & { includeInitialTab?: boolean }) {
+	constructor(config: MultiPageAgentConfig) {
 		// multi page controller
 		const tabsController = new TabsController()
 		const pageController = new RemotePageController(tabsController)
@@ -31,8 +36,8 @@ export class MultiPageAgent extends PageAgentCore {
 			`Default working language: **${targetLanguage}**`
 		)
 
-		// include initial tab for controlling
 		const includeInitialTab = config.includeInitialTab ?? true
+		const experimentalIncludeAllTabs = config.experimentalIncludeAllTabs ?? false
 
 		/**
 		 * When the agent is in side-panel and user closed the side-panel.
@@ -50,7 +55,7 @@ export class MultiPageAgent extends PageAgentCore {
 			customSystemPrompt: systemPrompt,
 
 			onBeforeTask: async (agent) => {
-				await tabsController.init(agent.task, includeInitialTab)
+				await tabsController.init(agent.task, { includeInitialTab, experimentalIncludeAllTabs })
 
 				heartBeatInterval = window.setInterval(() => {
 					chrome.storage.local.set({
@@ -75,6 +80,7 @@ export class MultiPageAgent extends PageAgentCore {
 			},
 
 			onBeforeStep: async (agent) => {
+				if (!tabsController.currentTabId) return
 				// make sure the current tab is loaded before the step starts
 				await tabsController.waitUntilTabLoaded(tabsController.currentTabId!)
 			},

packages/extension/src/agent/RemotePageController.background.ts

@@ -10,9 +10,7 @@ export function handlePageControlMessage(
 ): true | undefined {
 	const PREFIX = '[RemotePageController.background]'
 
-	function debug(...messages: any[]) {
-		console.debug(`\x1b[90m${PREFIX}\x1b[0m`, ...messages)
-	}
+	const debug = console.debug.bind(console, `\x1b[90m${PREFIX}\x1b[0m`)
 
 	const { action, payload, targetTabId } = message
 

packages/extension/src/agent/RemotePageController.content.ts

@@ -19,7 +19,10 @@ export function initPageController() {
 
 	function getPC(): PageController {
 		if (!pageController) {
-			pageController = new PageController({ enableMask: false, viewportExpansion: 400 })
+			pageController = new PageController({
+				enableMask: false,
+				viewportExpansion: 400,
+			})
 		}
 		return pageController
 	}

packages/extension/src/agent/RemotePageController.ts

@@ -4,9 +4,7 @@ import type { TabsController } from './TabsController'
 
 const PREFIX = '[RemotePageController]'
 
-function debug(...messages: any[]) {
-	console.debug(`\x1b[90m${PREFIX}\x1b[0m`, ...messages)
-}
+const debug = console.debug.bind(console, `\x1b[90m${PREFIX}\x1b[0m`)
 
 function sendMessage(message: {
 	type: 'PAGE_CONTROL'
@@ -58,9 +56,7 @@ export class RemotePageController {
 	}
 
 	async getBrowserState(): Promise<BrowserState> {
-		if (!this.currentTabId) throw new Error('tabsController not initialized.')
-
-		let browserState = {} as BrowserState
+		let browserState: BrowserState
 		debug('getBrowserState', this.currentTabId)
 
 		const currentUrl = await this.getCurrentUrl()
@@ -178,7 +174,7 @@ interface DomActionReturn {
 /**
  * Check if a URL can run content scripts.
  */
-function isContentScriptAllowed(url: string | undefined): boolean {
+export function isContentScriptAllowed(url: string | undefined): boolean {
 	if (!url) return false
 
 	const restrictedPatterns = [

packages/extension/src/agent/TabsController.background.ts

@@ -5,9 +5,7 @@ import type { TabAction } from './TabsController'
 
 const PREFIX = '[TabsController.background]'
 
-function debug(...messages: any[]) {
-	console.debug(`\x1b[90m${PREFIX}\x1b[0m`, ...messages)
-}
+const debug = console.debug.bind(console, `\x1b[90m${PREFIX}\x1b[0m`)
 
 export function handleTabControlMessage(
 	message: { type: 'TAB_CONTROL'; action: TabAction; payload: any },
@@ -20,11 +18,10 @@ export function handleTabControlMessage(
 		case 'get_active_tab': {
 			debug('get_active_tab')
 			chrome.tabs
-				.query({ active: true, currentWindow: true })
+				.query({ active: true })
 				.then((tabs) => {
-					const tabId = tabs.length > 0 ? tabs[0].id || null : null
-					debug('get_active_tab: success', tabId)
-					sendResponse({ success: true, tabId })
+					debug('get_active_tab: success', tabs)
+					sendResponse({ success: true, tab: tabs[0] })
 				})
 				.catch((error) => {
 					sendResponse({ error: error instanceof Error ? error.message : String(error) })
@@ -52,7 +49,7 @@ export function handleTabControlMessage(
 				.create({ url: payload.url, active: false })
 				.then((newTab) => {
 					debug('open_new_tab: success', newTab)
-					sendResponse({ success: true, tabId: newTab.id, windowId: newTab.windowId })
+					sendResponse({ success: true, tabId: newTab.id })
 				})
 				.catch((error) => {
 					sendResponse({ error: error instanceof Error ? error.message : String(error) })
@@ -114,47 +111,59 @@ export function handleTabControlMessage(
 			return true // async response
 		}
 
+		case 'get_window_tabs': {
+			debug('get_window_tabs', payload)
+			chrome.tabs
+				.query({ windowId: payload.windowId })
+				.then((tabs) => {
+					sendResponse({ success: true, tabs })
+				})
+				.catch((error) => {
+					sendResponse({ error: error instanceof Error ? error.message : String(error) })
+				})
+			return true
+		}
+
 		default:
 			sendResponse({ error: `Unknown action: ${action}` })
 			return
 	}
 }
 
-export function setupTabChangeEvents() {
-	console.log('[TabsController.background] setupTabChangeEvents')
+const tabEventPorts = new Set<chrome.runtime.Port>()
+
+function broadcastTabEvent(message: object) {
+	for (const port of tabEventPorts) {
+		port.postMessage(message)
+	}
+}
+
+/**
+ * Port-based tab events: agents connect via `chrome.runtime.connect({ name: 'tab-events' })`
+ * and receive tab change events through the port. Works for both extension pages and content scripts.
+ */
+export function setupTabEventsPort() {
+	chrome.runtime.onConnect.addListener((port) => {
+		if (port.name !== 'tab-events') return
+
+		debug('port connected', port.sender?.tab?.id ?? port.sender?.url)
+		tabEventPorts.add(port)
+
+		port.onDisconnect.addListener(() => {
+			debug('port disconnected')
+			tabEventPorts.delete(port)
+		})
+	})
 
 	chrome.tabs.onCreated.addListener((tab) => {
-		debug('onCreated', tab)
-		chrome.runtime
-			.sendMessage({ type: 'TAB_CHANGE', action: 'created', payload: { tab } })
-			.catch((error) => {
-				debug('onCreated error:', error)
-			})
+		broadcastTabEvent({ action: 'created', payload: { tab } })
 	})
 
 	chrome.tabs.onRemoved.addListener((tabId, removeInfo) => {
-		debug('onRemoved', tabId, removeInfo)
-		chrome.runtime
-			.sendMessage({
-				type: 'TAB_CHANGE',
-				action: 'removed',
-				payload: { tabId, removeInfo },
-			})
-			.catch((error) => {
-				debug('onRemoved error:', error)
-			})
+		broadcastTabEvent({ action: 'removed', payload: { tabId, removeInfo } })
 	})
 
 	chrome.tabs.onUpdated.addListener((tabId, changeInfo, tab) => {
-		debug('onUpdated', tabId, changeInfo)
-		chrome.runtime
-			.sendMessage({
-				type: 'TAB_CHANGE',
-				action: 'updated',
-				payload: { tabId, changeInfo, tab },
-			})
-			.catch((error) => {
-				debug('onUpdated error:', error)
-			})
+		broadcastTabEvent({ action: 'updated', payload: { tabId, changeInfo, tab } })
 	})
 }

packages/extension/src/agent/TabsController.ts

@@ -1,8 +1,8 @@
+import { isContentScriptAllowed } from './RemotePageController'
+
 const PREFIX = '[TabsController]'
 
-function debug(...messages: any[]) {
-	console.debug(`\x1b[90m${PREFIX}\x1b[0m`, ...messages)
-}
+const debug = console.debug.bind(console, `\x1b[90m${PREFIX}\x1b[0m`)
 
 function sendMessage(message: {
 	type: 'TAB_CONTROL'
@@ -20,102 +20,102 @@ function sendMessage(message: {
  * - live in the agent env (extension page or content script)
  * - no chrome apis. call sw for tab operations
  */
-export class TabsController extends EventTarget {
+export class TabsController {
 	currentTabId: number | null = null
 
+	private disposed = false
+	private port?: chrome.runtime.Port
+	private portRetries = 0
+
+	private windowId: number | null = null
 	private tabs: TabMeta[] = []
 	private initialTabId: number | null = null
 	private tabGroupId: number | null = null
+	private experimentalIncludeAllTabs = false
 	private task: string = ''
-	private windowId: number | null = null
 
-	async init(task: string, includeInitialTab: boolean = true) {
-		debug('init', task, includeInitialTab)
+	async init(task: string, options: TabsInitOptions = {}) {
+		const { includeInitialTab = true, experimentalIncludeAllTabs = false } = options
+		debug('init', task, options)
+
+		if (this.disposed) {
+			throw new Error('TabsController already disposed')
+		}
 
-		this.task = task
-		this.tabs = []
 		this.currentTabId = null
+		this.disposed = false
+		this.port = undefined
+		this.portRetries = 0
+
+		this.windowId = null
+		this.tabs = []
 		this.tabGroupId = null
 		this.initialTabId = null
-		this.windowId = null
+		this.experimentalIncludeAllTabs = experimentalIncludeAllTabs
+		this.task = task
 
-		const result = await sendMessage({
+		const activeTabResult = await sendMessage({
 			type: 'TAB_CONTROL',
 			action: 'get_active_tab',
 		})
 
-		this.initialTabId = result.tabId
+		this.initialTabId = activeTabResult.tab?.id
+		this.windowId = activeTabResult.tab?.windowId
 
-		if (!this.initialTabId) {
-			throw new Error('Failed to get initial tab ID')
+		if (!this.initialTabId || !this.windowId) {
+			if (activeTabResult.error) {
+				throw new Error(activeTabResult.error)
+			} else {
+				throw new Error('Failed to get active tab')
+			}
 		}
 
-		if (includeInitialTab) {
-			this.currentTabId = this.initialTabId
+		this.connectTabEvents()
 
-			// update tab status immediately
+		if (experimentalIncludeAllTabs) {
+			const allTabs = await sendMessage({
+				type: 'TAB_CONTROL',
+				action: 'get_window_tabs',
+				payload: { windowId: this.windowId },
+			})
+			for (const tab of allTabs.tabs as chrome.tabs.Tab[]) {
+				if (tab.id && !tab.pinned && isContentScriptAllowed(tab.url)) {
+					this.addTab({
+						id: tab.id,
+						isInitial: tab.id === this.initialTabId,
+						url: tab.url,
+						title: tab.title,
+						status: tab.status,
+					})
+				}
+			}
+			if (this.tabs.find((t) => t.id === this.initialTabId)) {
+				this.currentTabId = this.initialTabId
+				await this.createTabGroup([this.initialTabId])
+			}
+		} else if (includeInitialTab) {
 			const info = await sendMessage({
 				type: 'TAB_CONTROL',
 				action: 'get_tab_info',
 				payload: { tabId: this.initialTabId },
 			})
 
-			this.tabs.push({
-				id: result.tabId,
-				isInitial: true,
-				url: info.url,
-				title: info.title,
-				status: info.status,
-			})
+			if (isContentScriptAllowed(info.url) && !info.pinned) {
+				this.currentTabId = this.initialTabId
+
+				this.addTab({
+					id: this.initialTabId,
+					isInitial: true,
+					url: info.url,
+					title: info.title,
+					status: info.status,
+				})
+
+				await this.createTabGroup([this.initialTabId])
+			}
 		}
 
 		await this.updateCurrentTabId(this.currentTabId)
-
-		const tabChangeHandler = (message: any): void => {
-			if (message.type !== 'TAB_CHANGE') {
-				// throw new Error(`[TabsController]: Invalid message type: ${message.type}`)
-				return
-			}
-
-			if (message.action === 'created') {
-				const tab = message.payload.tab as chrome.tabs.Tab
-				if (tab.groupId === this.tabGroupId && tab.id != null) {
-					// Tab created in our controlled group
-					if (!this.tabs.find((t) => t.id === tab.id)) {
-						this.tabs.push({ id: tab.id, isInitial: false })
-					}
-					this.switchToTab(tab.id)
-				}
-			} else if (message.action === 'removed') {
-				const { tabId } = message.payload as { tabId: number }
-				const targetTab = this.tabs.find((t) => t.id === tabId)
-				if (targetTab) {
-					this.tabs = this.tabs.filter((t) => t.id !== tabId)
-					if (this.currentTabId === tabId) {
-						const newCurrentTab = this.tabs[this.tabs.length - 1] || null
-						if (newCurrentTab) {
-							this.switchToTab(newCurrentTab.id)
-						} else {
-							this.updateCurrentTabId(null)
-						}
-					}
-				}
-			} else if (message.action === 'updated') {
-				const { tabId, tab } = message.payload as { tabId: number; tab: chrome.tabs.Tab }
-				const targetTab = this.tabs.find((t) => t.id === tabId)
-				if (targetTab) {
-					targetTab.url = tab.url
-					targetTab.title = tab.title
-					targetTab.status = tab.status
-				}
-			}
-		}
-
-		chrome.runtime.onMessage.addListener(tabChangeHandler)
-
-		this.addEventListener('dispose', () => {
-			chrome.runtime.onMessage.removeListener(tabChangeHandler)
-		})
 	}
 
 	async openNewTab(url: string): Promise<string> {
@@ -132,11 +132,8 @@ export class TabsController extends EventTarget {
 		}
 
 		const tabId = result.tabId as number
-		const windowId = result.windowId as number
 
-		this.windowId = windowId
-
-		this.tabs.push({
+		this.addTab({
 			id: tabId,
 			isInitial: false,
 		})
@@ -144,32 +141,7 @@ export class TabsController extends EventTarget {
 		await this.switchToTab(tabId)
 
 		if (!this.tabGroupId) {
-			const result = await sendMessage({
-				type: 'TAB_CONTROL',
-				action: 'create_tab_group',
-				payload: { tabIds: [tabId], windowId: this.windowId },
-			})
-
-			if (!result.success) {
-				throw new Error(`Failed to create tab group: ${result.error}`)
-			}
-
-			const groupId = result.groupId as number
-
-			this.tabGroupId = groupId
-
-			await sendMessage({
-				type: 'TAB_CONTROL',
-				action: 'update_tab_group',
-				payload: {
-					groupId: this.tabGroupId,
-					properties: {
-						title: `PageAgent(${this.task})`,
-						color: randomColor(),
-						collapsed: false,
-					},
-				},
-			})
+			await this.createTabGroup([tabId])
 		} else {
 			await sendMessage({
 				type: 'TAB_CONTROL',
@@ -230,6 +202,38 @@ export class TabsController extends EventTarget {
 		}
 	}
 
+	private async createTabGroup(tabIds: number[]) {
+		const result = await sendMessage({
+			type: 'TAB_CONTROL',
+			action: 'create_tab_group',
+			payload: { tabIds, windowId: this.windowId },
+		})
+
+		if (!result?.success) {
+			throw new Error(`Failed to create tab group: ${result?.error}`)
+		}
+
+		this.tabGroupId = result.groupId as number
+
+		await sendMessage({
+			type: 'TAB_CONTROL',
+			action: 'update_tab_group',
+			payload: {
+				groupId: this.tabGroupId,
+				properties: {
+					title: `PageAgent(${this.task})`,
+					color: randomColor(),
+					collapsed: false,
+				},
+			},
+		})
+	}
+
+	private addTab(meta: TabMeta) {
+		if (this.tabs.find((t) => t.id === meta.id)) return
+		this.tabs.push(meta)
+	}
+
 	async updateCurrentTabId(tabId: number | null) {
 		debug('updateCurrentTabId', tabId)
 
@@ -286,9 +290,77 @@ export class TabsController extends EventTarget {
 		await waitUntil(() => tab.status === 'complete', 4_000)
 	}
 
-	dispose() {
-		this.dispatchEvent(new Event('dispose'))
+	/**
+	 * Connect to background SW via port to receive tab change events.
+	 *
+	 * @note Port is 1:1 (runtime.connect → background SW has no frames),
+	 * so onDisconnect fires exactly once and we can safely reconnect.
+	 * Reconnection may miss events during the gap.
+	 * TODO: refresh this.tabs from background after reconnect to stay consistent.
+	 */
+	private connectTabEvents() {
+		this.port = chrome.runtime.connect({ name: 'tab-events' })
+
+		this.port.onMessage.addListener((message: any) => {
+			if (this.disposed) return
+			this.portRetries = 0
+
+			if (message.action === 'created') {
+				const tab = message.payload.tab as chrome.tabs.Tab
+				const shouldTrack = this.experimentalIncludeAllTabs || tab.groupId === this.tabGroupId
+				if (shouldTrack && tab.id != null) {
+					this.addTab({ id: tab.id, isInitial: false })
+					this.switchToTab(tab.id)
+				}
+			} else if (message.action === 'removed') {
+				const { tabId } = message.payload as { tabId: number }
+				const targetTab = this.tabs.find((t) => t.id === tabId)
+				if (targetTab) {
+					this.tabs = this.tabs.filter((t) => t.id !== tabId)
+					if (this.currentTabId === tabId) {
+						const newCurrentTab = this.tabs[this.tabs.length - 1] || null
+						if (newCurrentTab) {
+							this.switchToTab(newCurrentTab.id)
+						} else {
+							this.updateCurrentTabId(null)
+						}
+					}
+				}
+			} else if (message.action === 'updated') {
+				const { tabId, tab } = message.payload as { tabId: number; tab: chrome.tabs.Tab }
+				const targetTab = this.tabs.find((t) => t.id === tabId)
+				if (targetTab) {
+					targetTab.url = tab.url
+					targetTab.title = tab.title
+					targetTab.status = tab.status
+				}
+			}
+		})
+
+		this.port.onDisconnect.addListener(() => {
+			this.port = undefined
+			if (this.disposed) return
+			if (this.portRetries >= 7) {
+				console.error(PREFIX, 'tab events port failed after 7 retries, giving up')
+				return
+			}
+			debug('port disconnected, reconnecting...')
+			this.portRetries++
+			this.connectTabEvents()
+		})
 	}
+
+	dispose() {
+		debug('dispose')
+		this.disposed = true
+		this.port?.disconnect()
+		this.port = undefined
+	}
+}
+
+export interface TabsInitOptions {
+	includeInitialTab?: boolean
+	experimentalIncludeAllTabs?: boolean
 }
 
 export type TabAction =
@@ -300,6 +372,7 @@ export type TabAction =
 	| 'add_tab_to_group'
 	| 'close_tab'
 	| 'get_tab_title'
+	| 'get_window_tabs'
 
 interface TabMeta {
 	id: number
@@ -309,16 +382,7 @@ interface TabMeta {
 	status?: 'loading' | 'unloaded' | 'complete'
 }
 
-const TAB_GROUP_COLORS = [
-	'grey',
-	'blue',
-	'red',
-	'yellow',
-	'green',
-	'pink',
-	'purple',
-	'cyan',
-] as const
+const TAB_GROUP_COLORS = ['blue', 'red', 'yellow', 'green', 'pink', 'purple', 'cyan'] as const
 
 type TabGroupColor = (typeof TAB_GROUP_COLORS)[number]
 

packages/extension/src/agent/constants.ts

@@ -1,13 +1,30 @@
 import type { LLMConfig } from '@page-agent/llms'
 
 // Demo LLM for testing
-export const DEMO_MODEL = 'PAGE-AGENT-FREE-TESTING-RANDOM'
-export const DEMO_BASE_URL =
-	'https://hwcxiuzfylggtcktqgij.supabase.co/functions/v1/llm-testing-proxy'
-export const DEMO_API_KEY = 'PAGE-AGENT-FREE-TESTING-RANDOM'
+export const DEMO_MODEL = 'qwen3.5-plus'
+export const DEMO_BASE_URL = 'https://page-ag-testing-ohftxirgbn.cn-shanghai.fcapp.run'
+// export const DEMO_API_KEY = 'NA'
 
 export const DEMO_CONFIG: LLMConfig = {
-	apiKey: DEMO_API_KEY,
 	baseURL: DEMO_BASE_URL,
 	model: DEMO_MODEL,
+	// apiKey: DEMO_API_KEY,
+}
+
+/** Legacy testing endpoints that should be auto-migrated to DEMO_BASE_URL */
+export const LEGACY_TESTING_ENDPOINTS = [
+	'https://hwcxiuzfylggtcktqgij.supabase.co/functions/v1/llm-testing-proxy',
+]
+
+export function isTestingEndpoint(url: string): boolean {
+	const normalized = url.replace(/\/+$/, '')
+	return normalized === DEMO_BASE_URL || LEGACY_TESTING_ENDPOINTS.some((ep) => normalized === ep)
+}
+
+export function migrateLegacyEndpoint(config: LLMConfig): LLMConfig {
+	const normalized = config.baseURL.replace(/\/+$/, '')
+	if (LEGACY_TESTING_ENDPOINTS.some((ep) => normalized === ep)) {
+		return { ...DEMO_CONFIG }
+	}
+	return config
 }

packages/extension/src/agent/system_prompt.md

@@ -71,7 +71,7 @@ Strictly follow these rules while using the browser and navigating the web:
 - By default, only elements in the visible viewport are listed. Use scrolling actions if you suspect relevant content is offscreen which you need to interact with. Scroll ONLY if there are more pixels below or above the page.
 - You can scroll by a specific number of pages using the num_pages parameter (e.g., 0.5 for half page, 2.0 for two pages).
 - All the elements that are scrollable are marked with `data-scrollable` attribute. Including the scrollable distance in every directions. You can scroll *the element* in case some area are overflowed.
-- If a captcha appears, tell user you can not solve captcha. finished the task and ask user to solve it.
+- If a captcha appears, tell user you can not solve captcha. Finish the task and ask user to solve it.
 - If expected elements are missing, try scrolling, or navigating back.
 - If the page is not fully loaded, use the `wait` action.
 - Do not repeat one action for more than 3 times unless some conditions changed.

packages/extension/src/agent/tabTools.ts

@@ -6,14 +6,14 @@
  * - switch_to_tab: Switch to an existing tab
  * - close_tab: Close a tab (optionally switch to another)
  */
-import * as zod from 'zod'
+import * as z from 'zod/v4'
 
 import type { TabsController } from './TabsController'
 
 /** Tool definition compatible with PageAgentCore customTools */
 interface TabTool {
 	description: string
-	inputSchema: zod.ZodType
+	inputSchema: z.ZodType
 	execute: (input: unknown) => Promise<string>
 }
 
@@ -26,8 +26,8 @@ export function createTabTools(tabsController: TabsController): Record<string, T
 		open_new_tab: {
 			description:
 				'Open a new browser tab with the specified URL. The new tab becomes the current tab for all subsequent page operations.',
-			inputSchema: zod.object({
-				url: zod.string().describe('The URL to open in the new tab'),
+			inputSchema: z.object({
+				url: z.string().describe('The URL to open in the new tab'),
 			}),
 			execute: async (input: unknown) => {
 				const { url } = input as { url: string }
@@ -42,8 +42,8 @@ export function createTabTools(tabsController: TabsController): Record<string, T
 		switch_to_tab: {
 			description:
 				'Switch to an existing tab by its ID. After switching, all page operations will target the new current tab. You can only switch to tabs in the tab list shown in browser state.',
-			inputSchema: zod.object({
-				tab_id: zod.number().int().describe('The tab ID to switch to'),
+			inputSchema: z.object({
+				tab_id: z.number().int().describe('The tab ID to switch to'),
 			}),
 			execute: async (input: unknown) => {
 				const { tab_id } = input as { tab_id: number }
@@ -58,8 +58,8 @@ export function createTabTools(tabsController: TabsController): Record<string, T
 		close_tab: {
 			description:
 				'Close a tab by its ID. Cannot close the initial tab. Optionally specify which tab to switch to after closing.',
-			inputSchema: zod.object({
-				tab_id: zod.number().int().describe('The tab ID to close'),
+			inputSchema: z.object({
+				tab_id: z.number().int().describe('The tab ID to close'),
 			}),
 			execute: async (input: unknown) => {
 				const { tab_id } = input as { tab_id: number }

packages/extension/src/agent/useAgent.ts

@@ -4,6 +4,7 @@
 import type {
 	AgentActivity,
 	AgentStatus,
+	ExecutionResult,
 	HistoricalEvent,
 	SupportedLanguage,
 } from '@page-agent/core'
@@ -11,12 +12,20 @@ import type { LLMConfig } from '@page-agent/llms'
 import { useCallback, useEffect, useRef, useState } from 'react'
 
 import { MultiPageAgent } from './MultiPageAgent'
-import { DEMO_CONFIG } from './constants'
+import { DEMO_CONFIG, migrateLegacyEndpoint } from './constants'
 
 /** Language preference: undefined means follow system */
 export type LanguagePreference = SupportedLanguage | undefined
 
-export interface ExtConfig extends LLMConfig {
+export interface AdvancedConfig {
+	maxSteps?: number
+	systemInstruction?: string
+	experimentalLlmsTxt?: boolean
+	experimentalIncludeAllTabs?: boolean
+	disableNamedToolChoice?: boolean
+}
+
+export interface ExtConfig extends LLMConfig, AdvancedConfig {
 	language?: LanguagePreference
 }
 
@@ -26,7 +35,7 @@ export interface UseAgentResult {
 	activity: AgentActivity | null
 	currentTask: string
 	config: ExtConfig | null
-	execute: (task: string) => Promise<void>
+	execute: (task: string) => Promise<ExecutionResult>
 	stop: () => void
 	configure: (config: ExtConfig) => Promise<void>
 }
@@ -40,21 +49,32 @@ export function useAgent(): UseAgentResult {
 	const [config, setConfig] = useState<ExtConfig | null>(null)
 
 	useEffect(() => {
-		chrome.storage.local.get(['llmConfig', 'language']).then((result) => {
-			const llmConfig = (result.llmConfig as LLMConfig) ?? DEMO_CONFIG
+		chrome.storage.local.get(['llmConfig', 'language', 'advancedConfig']).then((result) => {
+			let llmConfig = (result.llmConfig as LLMConfig) ?? DEMO_CONFIG
 			const language = (result.language as SupportedLanguage) || undefined
-			const full = { ...llmConfig, language }
-			if (!result.llmConfig) {
+			const advancedConfig = (result.advancedConfig as AdvancedConfig) ?? {}
+
+			// Auto-migrate legacy testing endpoints
+			const migrated = migrateLegacyEndpoint(llmConfig)
+			if (migrated !== llmConfig) {
+				llmConfig = migrated
+				chrome.storage.local.set({ llmConfig: migrated })
+			} else if (!result.llmConfig) {
 				chrome.storage.local.set({ llmConfig: DEMO_CONFIG })
 			}
-			setConfig(full)
+
+			setConfig({ ...llmConfig, ...advancedConfig, language })
 		})
 	}, [])
 
 	useEffect(() => {
 		if (!config) return
 
-		const agent = new MultiPageAgent(config)
+		const { systemInstruction, ...agentConfig } = config
+		const agent = new MultiPageAgent({
+			...agentConfig,
+			instructions: systemInstruction ? { system: systemInstruction } : undefined,
+		})
 		agentRef.current = agent
 
 		const handleStatusChange = (e: Event) => {
@@ -88,27 +108,45 @@ export function useAgent(): UseAgentResult {
 
 	const execute = useCallback(async (task: string) => {
 		const agent = agentRef.current
-		console.log('🚀 [useAgent] start executing task:', task)
 		if (!agent) throw new Error('Agent not initialized')
 
 		setCurrentTask(task)
 		setHistory([])
-		await agent.execute(task)
+		return agent.execute(task)
 	}, [])
 
 	const stop = useCallback(() => {
 		agentRef.current?.stop()
 	}, [])
 
-	const configure = useCallback(async ({ language, ...llmConfig }: ExtConfig) => {
-		await chrome.storage.local.set({ llmConfig })
-		if (language) {
-			await chrome.storage.local.set({ language })
-		} else {
-			await chrome.storage.local.remove('language')
-		}
-		setConfig({ ...llmConfig, language })
-	}, [])
+	const configure = useCallback(
+		async ({
+			language,
+			maxSteps,
+			systemInstruction,
+			experimentalLlmsTxt,
+			experimentalIncludeAllTabs,
+			disableNamedToolChoice,
+			...llmConfig
+		}: ExtConfig) => {
+			await chrome.storage.local.set({ llmConfig })
+			if (language) {
+				await chrome.storage.local.set({ language })
+			} else {
+				await chrome.storage.local.remove('language')
+			}
+			const advancedConfig: AdvancedConfig = {
+				maxSteps,
+				systemInstruction,
+				experimentalLlmsTxt,
+				experimentalIncludeAllTabs,
+				disableNamedToolChoice,
+			}
+			await chrome.storage.local.set({ advancedConfig })
+			setConfig({ ...llmConfig, ...advancedConfig, language })
+		},
+		[]
+	)
 
 	return {
 		status,

packages/extension/src/components/ConfigPanel.tsx

@@ -1,11 +1,24 @@
-import { Copy, CornerUpLeft, Eye, EyeOff, HatGlasses, Home, Loader2, Scale } from 'lucide-react'
+import {
+	Copy,
+	CornerUpLeft,
+	ExternalLink,
+	Eye,
+	EyeOff,
+	FoldVertical,
+	HatGlasses,
+	Home,
+	Loader2,
+	Scale,
+	UnfoldVertical,
+} from 'lucide-react'
 import { useEffect, useState } from 'react'
 import { siGithub } from 'simple-icons'
 
-import { DEMO_API_KEY, DEMO_BASE_URL, DEMO_MODEL } from '@/agent/constants'
+import { DEMO_BASE_URL, DEMO_MODEL, isTestingEndpoint } from '@/agent/constants'
 import type { ExtConfig, LanguagePreference } from '@/agent/useAgent'
 import { Button } from '@/components/ui/button'
 import { Input } from '@/components/ui/input'
+import { Switch } from '@/components/ui/switch'
 
 interface ConfigPanelProps {
 	config: ExtConfig | null
@@ -14,23 +27,41 @@ interface ConfigPanelProps {
 }
 
 export function ConfigPanel({ config, onSave, onClose }: ConfigPanelProps) {
-	const [apiKey, setApiKey] = useState(config?.apiKey || DEMO_API_KEY)
 	const [baseURL, setBaseURL] = useState(config?.baseURL || DEMO_BASE_URL)
 	const [model, setModel] = useState(config?.model || DEMO_MODEL)
+	const [apiKey, setApiKey] = useState(config?.apiKey)
 	const [language, setLanguage] = useState<LanguagePreference>(config?.language)
+	const [maxSteps, setMaxSteps] = useState(config?.maxSteps)
+	const [systemInstruction, setSystemInstruction] = useState(config?.systemInstruction ?? '')
+	const [experimentalLlmsTxt, setExperimentalLlmsTxt] = useState(
+		config?.experimentalLlmsTxt ?? false
+	)
+	const [experimentalIncludeAllTabs, setExperimentalIncludeAllTabs] = useState(
+		config?.experimentalIncludeAllTabs ?? false
+	)
+	const [disableNamedToolChoice, setDisableNamedToolChoice] = useState(
+		config?.disableNamedToolChoice ?? false
+	)
+	const [advancedOpen, setAdvancedOpen] = useState(false)
 	const [saving, setSaving] = useState(false)
-	const [userAuthToken, setUserAuthToken] = useState<string>('')
+	const [userAuthToken, setUserAuthToken] = useState('')
 	const [copied, setCopied] = useState(false)
 	const [showToken, setShowToken] = useState(false)
 	const [showApiKey, setShowApiKey] = useState(false)
 
-	// Update local state when config prop changes
-	useEffect(() => {
-		setApiKey(config?.apiKey || DEMO_API_KEY)
+	const [prevConfig, setPrevConfig] = useState(config)
+	if (prevConfig !== config) {
+		setPrevConfig(config)
 		setBaseURL(config?.baseURL || DEMO_BASE_URL)
 		setModel(config?.model || DEMO_MODEL)
+		setApiKey(config?.apiKey)
 		setLanguage(config?.language)
-	}, [config])
+		setMaxSteps(config?.maxSteps)
+		setSystemInstruction(config?.systemInstruction ?? '')
+		setExperimentalLlmsTxt(config?.experimentalLlmsTxt ?? false)
+		setExperimentalIncludeAllTabs(config?.experimentalIncludeAllTabs ?? false)
+		setDisableNamedToolChoice(config?.disableNamedToolChoice ?? false)
+	}
 
 	// Poll for user auth token every second until found
 	useEffect(() => {
@@ -67,7 +98,17 @@ export function ConfigPanel({ config, onSave, onClose }: ConfigPanelProps) {
 	const handleSave = async () => {
 		setSaving(true)
 		try {
-			await onSave({ apiKey, baseURL, model, language })
+			await onSave({
+				apiKey,
+				baseURL,
+				model,
+				language,
+				maxSteps: maxSteps || undefined,
+				systemInstruction: systemInstruction || undefined,
+				experimentalLlmsTxt,
+				experimentalIncludeAllTabs,
+				disableNamedToolChoice,
+			})
 		} finally {
 			setSaving(false)
 		}
@@ -82,6 +123,7 @@ export function ConfigPanel({ config, onSave, onClose }: ConfigPanelProps) {
 					size="icon-sm"
 					onClick={onClose}
 					className="absolute top-2 right-3 cursor-pointer"
+					aria-label="Back"
 				>
 					<CornerUpLeft className="size-3.5" />
 				</Button>
@@ -89,12 +131,15 @@ export function ConfigPanel({ config, onSave, onClose }: ConfigPanelProps) {
 
 			{/* User Auth Token Section */}
 			<div className="flex flex-col gap-1.5 p-3 bg-muted/50 rounded-md border">
-				<label className="text-xs font-medium text-muted-foreground">User Auth Token</label>
+				<label htmlFor="user-auth-token" className="text-xs font-medium text-muted-foreground">
+					User Auth Token
+				</label>
 				<p className="text-[10px] text-muted-foreground mb-1">
-					Add this token to a website's localStorage to give it authorization to call this extension
+					Give a website the ability to call this extension.
 				</p>
 				<div className="flex gap-2 items-center">
 					<Input
+						id="user-auth-token"
 						readOnly
 						value={
 							userAuthToken
@@ -111,6 +156,8 @@ export function ConfigPanel({ config, onSave, onClose }: ConfigPanelProps) {
 						className="h-8 w-8 shrink-0 cursor-pointer"
 						onClick={() => setShowToken(!showToken)}
 						disabled={!userAuthToken}
+						aria-label={showToken ? 'Hide token' : 'Show token'}
+						aria-pressed={showToken}
 					>
 						{showToken ? <EyeOff className="size-3" /> : <Eye className="size-3" />}
 					</Button>
@@ -120,15 +167,33 @@ export function ConfigPanel({ config, onSave, onClose }: ConfigPanelProps) {
 						className="h-8 w-8 shrink-0 cursor-pointer"
 						onClick={handleCopyToken}
 						disabled={!userAuthToken}
+						aria-label="Copy token"
 					>
 						{copied ? <span className="">✓</span> : <Copy className="size-3" />}
 					</Button>
+					<span role="status" aria-live="polite" aria-atomic="true" className="sr-only">
+						{copied ? 'Token copied' : ''}
+					</span>
 				</div>
 			</div>
 
+			{/* Hub link */}
+			<a
+				href="/hub.html"
+				target="_blank"
+				rel="noopener noreferrer"
+				className="flex items-center justify-between p-3 rounded-md border bg-muted/50 text-xs font-medium text-muted-foreground hover:text-foreground hover:border-foreground/20 transition-colors"
+			>
+				Manage Page Agent Hub
+				<ExternalLink className="size-3" />
+			</a>
+
 			<div className="flex flex-col gap-1.5">
-				<label className="text-xs text-muted-foreground">Base URL</label>
+				<label htmlFor="base-url" className="text-xs text-muted-foreground">
+					Base URL
+				</label>
 				<Input
+					id="base-url"
 					placeholder="https://api.openai.com/v1"
 					value={baseURL}
 					onChange={(e) => setBaseURL(e.target.value)}
@@ -136,10 +201,29 @@ export function ConfigPanel({ config, onSave, onClose }: ConfigPanelProps) {
 				/>
 			</div>
 
+			{/* Testing API notice */}
+			{isTestingEndpoint(baseURL) && (
+				<div className="p-2.5 rounded-md border border-amber-500/30 bg-amber-500/5 text-[11px] text-muted-foreground leading-relaxed">
+					<Scale className="size-3 inline-block mr-1 -mt-0.5 text-amber-600" />
+					You are using our testing API. By using this you agree to the{' '}
+					<a
+						href="https://github.com/alibaba/page-agent/blob/main/docs/terms-and-privacy.md"
+						target="_blank"
+						rel="noopener noreferrer"
+						className="underline hover:text-foreground"
+					>
+						Terms of Use & Privacy Policy
+					</a>
+				</div>
+			)}
+
 			<div className="flex flex-col gap-1.5">
-				<label className="text-xs text-muted-foreground">Model</label>
+				<label htmlFor="model" className="text-xs text-muted-foreground">
+					Model
+				</label>
 				<Input
-					placeholder="gpt-5.2"
+					id="model"
+					placeholder="gpt-5.1"
 					value={model}
 					onChange={(e) => setModel(e.target.value)}
 					className="text-xs h-8"
@@ -147,11 +231,14 @@ export function ConfigPanel({ config, onSave, onClose }: ConfigPanelProps) {
 			</div>
 
 			<div className="flex flex-col gap-1.5">
-				<label className="text-xs text-muted-foreground">API Key</label>
+				<label htmlFor="api-key" className="text-xs text-muted-foreground">
+					API Key
+				</label>
 				<div className="flex gap-2 items-center">
 					<Input
+						id="api-key"
 						type={showApiKey ? 'text' : 'password'}
-						placeholder="sk-..."
+						// placeholder="sk-..."
 						value={apiKey}
 						onChange={(e) => setApiKey(e.target.value)}
 						className="text-xs h-8"
@@ -161,6 +248,7 @@ export function ConfigPanel({ config, onSave, onClose }: ConfigPanelProps) {
 						size="icon"
 						className="h-8 w-8 shrink-0 cursor-pointer"
 						onClick={() => setShowApiKey(!showApiKey)}
+						aria-label={showApiKey ? 'Hide API key' : 'Show API key'}
 					>
 						{showApiKey ? <EyeOff className="size-3" /> : <Eye className="size-3" />}
 					</Button>
@@ -168,7 +256,7 @@ export function ConfigPanel({ config, onSave, onClose }: ConfigPanelProps) {
 			</div>
 
 			<div className="flex flex-col gap-1.5">
-				<label className="text-xs text-muted-foreground">Language</label>
+				<label className="text-xs text-muted-foreground">Response Language</label>
 				<select
 					value={language ?? ''}
 					onChange={(e) => setLanguage((e.target.value || undefined) as LanguagePreference)}
@@ -180,6 +268,65 @@ export function ConfigPanel({ config, onSave, onClose }: ConfigPanelProps) {
 				</select>
 			</div>
 
+			{/* Advanced Config */}
+			<button
+				type="button"
+				onClick={() => setAdvancedOpen(!advancedOpen)}
+				className="flex items-center gap-1 text-xs text-muted-foreground hover:text-foreground cursor-pointer mt-1 font-bold"
+			>
+				Advanced
+				{advancedOpen ? <FoldVertical className="size-3" /> : <UnfoldVertical className="size-3" />}
+			</button>
+
+			{advancedOpen && (
+				<>
+					<div className="flex flex-col gap-1.5">
+						<label htmlFor="max-steps" className="text-xs text-muted-foreground">
+							Max Steps
+						</label>
+						<Input
+							id="max-steps"
+							type="number"
+							placeholder="40"
+							min={1}
+							max={200}
+							value={maxSteps ?? ''}
+							onChange={(e) => setMaxSteps(e.target.value ? Number(e.target.value) : undefined)}
+							className="text-xs h-8 [&::-webkit-inner-spin-button]:appearance-none [&::-webkit-outer-spin-button]:appearance-none [-moz-appearance:textfield]"
+						/>
+					</div>
+
+					<div className="flex flex-col gap-1.5">
+						<label className="text-xs text-muted-foreground">System Instruction</label>
+						<textarea
+							placeholder="Additional instructions for the agent..."
+							value={systemInstruction}
+							onChange={(e) => setSystemInstruction(e.target.value)}
+							rows={3}
+							className="text-xs rounded-md border border-input bg-background px-3 py-2 resize-y min-h-[60px]"
+						/>
+					</div>
+
+					<label className="flex items-center justify-between cursor-pointer">
+						<span className="text-xs text-muted-foreground">Disable named tool_choice</span>
+						<Switch checked={disableNamedToolChoice} onCheckedChange={setDisableNamedToolChoice} />
+					</label>
+
+					<label className="flex items-center justify-between cursor-pointer">
+						<span className="text-xs text-muted-foreground">Experimental llms.txt support</span>
+						<Switch checked={experimentalLlmsTxt} onCheckedChange={setExperimentalLlmsTxt} />
+					</label>
+
+					<label className="flex items-center justify-between cursor-pointer">
+						<span className="text-xs text-muted-foreground">Experimental include all tabs</span>
+						<Switch
+							checked={experimentalIncludeAllTabs}
+							onCheckedChange={setExperimentalIncludeAllTabs}
+						/>
+					</label>
+				</>
+			)}
+
 			<div className="flex gap-2 mt-2">
 				<Button variant="outline" onClick={onClose} className="flex-1 h-8 text-xs cursor-pointer">
 					Cancel
@@ -196,6 +343,10 @@ export function ConfigPanel({ config, onSave, onClose }: ConfigPanelProps) {
 			{/* Footer */}
 			<div className="mt-4 mb-4 pt-4 border-t border-border/50 flex gap-2 justify-between text-[10px] text-muted-foreground">
 				<div className="flex flex-col justify-between">
+					<span>
+						Version <span className="font-mono">v{__VERSION__}</span>
+					</span>
+
 					<a
 						href="https://github.com/alibaba/page-agent"
 						target="_blank"
@@ -207,7 +358,9 @@ export function ConfigPanel({ config, onSave, onClose }: ConfigPanelProps) {
 						</svg>
 						<span>Source Code</span>
 					</a>
+				</div>
 
+				<div className="flex flex-col items-end">
 					<a
 						href="https://alibaba.github.io/page-agent/"
 						target="_blank"
@@ -219,24 +372,15 @@ export function ConfigPanel({ config, onSave, onClose }: ConfigPanelProps) {
 					</a>
 
 					<a
-						href="https://github.com/alibaba/page-agent/blob/main/packages/extension/PRIVACY.md"
+						href="https://github.com/alibaba/page-agent/blob/main/docs/terms-and-privacy.md"
 						target="_blank"
 						rel="noopener noreferrer"
 						className="flex items-center gap-1 hover:text-foreground"
 					>
 						<HatGlasses className="size-3" />
-						<span>Privacy Policy</span>
+						<span>Privacy</span>
 					</a>
 				</div>
-
-				<div className="flex flex-col items-end">
-					<span>
-						Extension <span className="font-mono">v{__EXT_VERSION__}</span>
-					</span>
-					<span>
-						PageAgent <span className="font-mono">v{__CORE_VERSION__}</span>
-					</span>
-				</div>
 			</div>
 
 			{/* attribute */}

packages/extension/src/components/ErrorBoundary.tsx

@@ -1,4 +1,4 @@
-import { AlertTriangle, RotateCcw } from 'lucide-react'
+import { AlertTriangle, Eraser, RotateCcw } from 'lucide-react'
 import { Component, type ErrorInfo, type ReactNode } from 'react'
 
 import { Button } from '@/components/ui/button'
@@ -27,6 +27,11 @@ export class ErrorBoundary extends Component<Props, State> {
 		window.location.reload()
 	}
 
+	handleResetConfig = async () => {
+		await chrome.storage.local.remove(['llmConfig', 'language', 'advancedConfig'])
+		window.location.reload()
+	}
+
 	render() {
 		if (!this.state.hasError) {
 			return this.props.children
@@ -39,10 +44,16 @@ export class ErrorBoundary extends Component<Props, State> {
 				<p className="text-sm text-muted-foreground mb-4 max-w-xs">
 					{this.state.error?.message || 'An unexpected error occurred'}
 				</p>
-				<Button variant="outline" size="sm" onClick={this.handleReload}>
-					<RotateCcw className="size-3.5 mr-2" />
-					Reload Panel
-				</Button>
+				<div className="flex gap-2">
+					<Button variant="outline" size="sm" onClick={this.handleResetConfig}>
+						<Eraser className="size-3.5 mr-2" />
+						Reset Config
+					</Button>
+					<Button variant="outline" size="sm" onClick={this.handleReload}>
+						<RotateCcw className="size-3.5 mr-2" />
+						Reload Panel
+					</Button>
+				</div>
 			</div>
 		)
 	}

packages/extension/src/components/HistoryDetail.tsx

@@ -1,12 +1,20 @@
-import { ArrowLeft } from 'lucide-react'
+import { ArrowLeft, RotateCcw, Trash2 } from 'lucide-react'
 import { useEffect, useState } from 'react'
 
 import { Button } from '@/components/ui/button'
-import { type SessionRecord, getSession } from '@/lib/db'
+import { type SessionRecord, deleteSession, getSession } from '@/lib/db'
 
 import { EventCard } from './cards'
 
-export function HistoryDetail({ sessionId, onBack }: { sessionId: string; onBack: () => void }) {
+export function HistoryDetail({
+	sessionId,
+	onBack,
+	onRerun,
+}: {
+	sessionId: string
+	onBack: () => void
+	onRerun: (task: string) => void
+}) {
 	const [session, setSession] = useState<SessionRecord | null>(null)
 
 	useEffect(() => {
@@ -37,12 +45,32 @@ export function HistoryDetail({ sessionId, onBack }: { sessionId: string; onBack
 				<div className="text-xs font-medium" title={session.task}>
 					{session.task}
 				</div>
+				<div className="mt-2 flex items-center gap-2">
+					<button
+						type="button"
+						onClick={() => onRerun(session.task)}
+						className="flex items-center gap-1 text-[10px] text-muted-foreground hover:text-foreground transition-colors cursor-pointer disabled:opacity-50 disabled:cursor-not-allowed"
+					>
+						<RotateCcw className="size-3" />
+						Run again
+					</button>
+					<button
+						type="button"
+						onClick={async () => {
+							await deleteSession(sessionId)
+							onBack()
+						}}
+						className="flex items-center gap-1 text-[10px] text-muted-foreground hover:text-destructive transition-colors cursor-pointer"
+					>
+						<Trash2 className="size-3" />
+						Delete
+					</button>
+				</div>
 			</div>
 
 			{/* Events (read-only) */}
 			<div className="flex-1 overflow-y-auto p-3 space-y-2">
 				{session.history.map((event, index) => (
-					// eslint-disable-next-line react-x/no-array-index-key
 					<EventCard key={index} event={event} />
 				))}
 			</div>

packages/extension/src/components/HistoryList.tsx

@@ -0,0 +1,181 @@
+import {
+	ArrowDownToLine,
+	ArrowLeft,
+	CheckCircle,
+	History,
+	RotateCcw,
+	Trash2,
+	XCircle,
+} from 'lucide-react'
+import { useCallback, useEffect, useState } from 'react'
+
+import { Button } from '@/components/ui/button'
+import { type SessionRecord, clearSessions, deleteSession, listSessions } from '@/lib/db'
+import { downloadHistoryExport } from '@/lib/history-export'
+
+function timeAgo(ts: number): string {
+	const seconds = Math.floor((Date.now() - ts) / 1000)
+	if (seconds < 60) return 'just now'
+	const minutes = Math.floor(seconds / 60)
+	if (minutes < 60) return `${minutes}m ago`
+	const hours = Math.floor(minutes / 60)
+	if (hours < 24) return `${hours}h ago`
+	const days = Math.floor(hours / 24)
+	return `${days}d ago`
+}
+
+export function HistoryList({
+	onSelect,
+	onBack,
+	onRerun,
+}: {
+	onSelect: (id: string) => void
+	onBack: () => void
+	onRerun: (task: string) => void
+}) {
+	const [sessions, setSessions] = useState<SessionRecord[]>([])
+	const [loading, setLoading] = useState(true)
+
+	const load = useCallback(async () => {
+		try {
+			setSessions(await listSessions())
+		} catch (err) {
+			console.error('[HistoryList] Failed to load sessions:', err)
+		} finally {
+			setLoading(false)
+		}
+	}, [])
+
+	useEffect(() => {
+		load()
+	}, [load])
+
+	const handleDelete = async (e: React.MouseEvent, id: string) => {
+		e.stopPropagation()
+		await deleteSession(id)
+		setSessions((prev) => prev.filter((s) => s.id !== id))
+	}
+
+	const handleExport = (e: React.MouseEvent, session: SessionRecord) => {
+		e.stopPropagation()
+		downloadHistoryExport(session.task, session.createdAt, session.history)
+	}
+
+	const handleRerun = (e: React.MouseEvent, task: string) => {
+		e.stopPropagation()
+		onRerun(task)
+	}
+
+	return (
+		<div className="flex flex-col h-screen bg-background">
+			{/* Header */}
+			<header className="flex items-center gap-2 border-b px-3 py-2">
+				<Button
+					variant="ghost"
+					size="icon-sm"
+					onClick={onBack}
+					className="cursor-pointer"
+					aria-label="Back"
+					title="Back"
+				>
+					<ArrowLeft className="size-3.5" />
+				</Button>
+				<span className="text-sm font-medium flex-1">History</span>
+				{sessions.length > 0 && (
+					<Button
+						variant="ghost"
+						size="sm"
+						onClick={async () => {
+							await clearSessions()
+							setSessions([])
+						}}
+						className="text-[10px] text-muted-foreground hover:text-destructive cursor-pointer h-6 px-2"
+					>
+						<Trash2 className="size-3 mr-1" />
+						Clear All
+					</Button>
+				)}
+			</header>
+
+			{/* List */}
+			<div className="flex-1 overflow-y-auto">
+				{loading && (
+					<div className="flex flex-col" aria-label="Loading history" aria-busy="true">
+						{[...Array(4)].map((_, i) => (
+							<div key={i} className="flex items-start gap-2 px-3 py-2.5 border-b">
+								<div className="size-3.5 mt-0.5 rounded-full bg-muted animate-pulse shrink-0" />
+								<div className="flex-1 space-y-1.5">
+									<div className="h-2.5 bg-muted animate-pulse rounded w-3/4" />
+									<div className="h-2 bg-muted animate-pulse rounded w-1/3" />
+								</div>
+							</div>
+						))}
+					</div>
+				)}
+
+				{!loading && sessions.length === 0 && (
+					<div className="flex flex-col items-center justify-center h-40 gap-2 text-muted-foreground">
+						<History className="size-8 opacity-30" />
+						<p className="text-xs">No history yet</p>
+					</div>
+				)}
+
+				{sessions.map((session) => (
+					<div
+						key={session.id}
+						role="button"
+						tabIndex={0}
+						onClick={() => onSelect(session.id)}
+						className="w-full text-left px-3 py-2.5 border-b hover:bg-muted/50 transition-colors cursor-pointer flex items-start gap-2 group"
+					>
+						{/* Status icon */}
+						{session.status === 'completed' ? (
+							<CheckCircle className="size-3.5 text-green-500 shrink-0 mt-0.5" />
+						) : (
+							<XCircle className="size-3.5 text-destructive shrink-0 mt-0.5" />
+						)}
+
+						{/* Content */}
+						<div className="flex-1 min-w-0">
+							<p className="text-xs font-medium truncate">{session.task}</p>
+							<div className="flex items-center mt-0.5">
+								<p className="text-[10px] text-muted-foreground">
+									{timeAgo(session.createdAt)} · {session.history.length} steps
+								</p>
+								<div className="flex items-center gap-0.5 ml-auto opacity-0 group-hover:opacity-100 transition-opacity">
+									<button
+										type="button"
+										onClick={(e) => handleRerun(e, session.task)}
+										className="p-0.5 text-muted-foreground hover:text-foreground transition-colors cursor-pointer"
+										title="Run task again"
+										aria-label={`Run history task again: ${session.task}`}
+									>
+										<RotateCcw className="size-3" />
+									</button>
+									<button
+										type="button"
+										onClick={(e) => handleExport(e, session)}
+										className="p-1 text-muted-foreground hover:text-foreground transition-colors cursor-pointer"
+										title="Export history JSON"
+										aria-label={`Export history for ${session.task}`}
+									>
+										<ArrowDownToLine className="size-3" />
+									</button>
+									<button
+										type="button"
+										onClick={(e) => handleDelete(e, session.id)}
+										className="p-0.5 text-muted-foreground hover:text-destructive transition-colors cursor-pointer"
+										title="Delete history"
+										aria-label={`Delete history for ${session.task}`}
+									>
+										<Trash2 className="size-3" />
+									</button>
+								</div>
+							</div>
+						</div>
+					</div>
+				))}
+			</div>
+		</div>
+	)
+}

packages/extension/src/components/cards.tsx

@@ -54,7 +54,7 @@ function ResultCard({
 					Result: {success ? 'Success' : 'Failed'}
 				</span>
 			</div>
-			<p className="text-xs text-[11px] text-muted-foreground pl-5 whitespace-pre-wrap">{text}</p>
+			<p className="text-[12px] text-foreground pl-5 whitespace-pre-wrap">{text}</p>
 			{children}
 		</div>
 	)
@@ -146,6 +146,7 @@ function CopyButton({ text, label }: { text: string; label: string }) {
 function extractPrompt(rawRequest: unknown, role: 'system' | 'user'): string | null {
 	const messages = (rawRequest as { messages?: { role: string; content?: unknown }[] })?.messages
 	if (!messages) return null
+	if (!Array.isArray(messages)) return null
 	const msg =
 		role === 'system'
 			? messages.find((m) => m.role === role)

packages/extension/src/components/misc.tsx

@@ -43,20 +43,24 @@ export function MotionOverlay({ active }: { active: boolean }) {
 	const motionRef = useRef<Motion | null>(null)
 
 	useEffect(() => {
-		const mode = document.documentElement.classList.contains('dark') ? 'dark' : 'light'
-		const motion = new Motion({
-			mode,
-			borderWidth: 4,
-			borderRadius: 14,
-			glowWidth: mode === 'dark' ? 120 : 60,
-			styles: { position: 'absolute', inset: '0' },
-		})
-		motionRef.current = motion
-		containerRef.current!.appendChild(motion.element)
-		motion.autoResize(containerRef.current!)
+		try {
+			const mode = document.documentElement.classList.contains('dark') ? 'dark' : 'light'
+			const motion = new Motion({
+				mode,
+				borderWidth: 4,
+				borderRadius: 14,
+				glowWidth: mode === 'dark' ? 120 : 60,
+				styles: { position: 'absolute', inset: '0' },
+			})
+			motionRef.current = motion
+			containerRef.current!.appendChild(motion.element)
+			motion.autoResize(containerRef.current!)
+		} catch (e) {
+			console.warn('[MotionOverlay] Motion unavailable:', e)
+		}
 
 		return () => {
-			motion.dispose()
+			motionRef.current?.dispose()
 			motionRef.current = null
 		}
 	}, [])
@@ -80,7 +84,7 @@ export function MotionOverlay({ active }: { active: boolean }) {
 	return (
 		<div
 			ref={containerRef}
-			className="pointer-events-none absolute inset-0 z-10 opacity-60"
+			className="pointer-events-none absolute inset-0 z-10 opacity-60 overflow-hidden"
 			style={{ display: active ? undefined : 'none' }}
 		/>
 	)
@@ -107,6 +111,7 @@ export function EmptyState() {
 					]}
 					cursorStyle="underscore"
 					loop
+					startOnView={false}
 					typeSpeed={20}
 					deleteSpeed={10}
 					pauseDelay={3000}
@@ -125,7 +130,7 @@ export function EmptyState() {
 					</svg>
 				</a>
 				<a
-					href="https://alibaba.github.io/page-agent/#/docs/features/chrome-extension"
+					href="https://alibaba.github.io/page-agent/docs/features/chrome-extension"
 					target="_blank"
 					rel="noopener noreferrer"
 					className="hover:text-foreground transition-colors"

packages/extension/src/components/ui/switch.tsx

@@ -8,7 +8,7 @@ function Switch({ className, ...props }: React.ComponentProps<typeof SwitchPrimi
 		<SwitchPrimitive.Root
 			data-slot="switch"
 			className={cn(
-				'peer data-[state=checked]:bg-primary data-[state=unchecked]:bg-input focus-visible:border-ring focus-visible:ring-ring/50 dark:data-[state=unchecked]:bg-input/80 inline-flex h-[1.15rem] w-8 shrink-0 items-center rounded-full border border-transparent shadow-xs transition-all outline-none focus-visible:ring-[3px] disabled:cursor-not-allowed disabled:opacity-50',
+				'peer data-[state=checked]:bg-primary data-[state=unchecked]:bg-input focus-visible:border-ring focus-visible:ring-ring/50 dark:data-[state=unchecked]:bg-input/80 inline-flex h-[1.15rem] w-8 shrink-0 cursor-pointer items-center rounded-full border border-transparent shadow-xs transition-all outline-none focus-visible:ring-[3px] disabled:cursor-not-allowed disabled:opacity-50',
 				className
 			)}
 			{...props}

packages/extension/src/entrypoints/background.ts

@@ -1,12 +1,12 @@
 import { handlePageControlMessage } from '@/agent/RemotePageController.background'
-import { handleTabControlMessage, setupTabChangeEvents } from '@/agent/TabsController.background'
+import { handleTabControlMessage, setupTabEventsPort } from '@/agent/TabsController.background'
 
 export default defineBackground(() => {
 	console.log('[Background] Service Worker started')
 
 	// tab change events
 
-	setupTabChangeEvents()
+	setupTabEventsPort()
 
 	// generate user auth token
 
@@ -30,7 +30,34 @@ export default defineBackground(() => {
 		}
 	})
 
+	// external messages (from localhost launcher page via externally_connectable)
+
+	chrome.runtime.onMessageExternal.addListener((message, sender, sendResponse) => {
+		if (message.type === 'OPEN_HUB') {
+			openOrFocusHubTab(message.wsPort).then(() => {
+				if (sender.tab?.id) chrome.tabs.remove(sender.tab.id)
+				sendResponse({ ok: true })
+			})
+			return true
+		}
+	})
+
 	// setup
 
 	chrome.sidePanel.setPanelBehavior({ openPanelOnActionClick: true }).catch(() => {})
 })
+
+async function openOrFocusHubTab(wsPort: number) {
+	const hubUrl = chrome.runtime.getURL('hub.html')
+	const existing = await chrome.tabs.query({ url: `${hubUrl}*` })
+
+	if (existing.length > 0 && existing[0].id) {
+		await chrome.tabs.update(existing[0].id, {
+			active: true,
+			url: `${hubUrl}?ws=${wsPort}`,
+		})
+		return
+	}
+
+	await chrome.tabs.create({ url: `${hubUrl}?ws=${wsPort}`, pinned: true })
+}

packages/extension/src/entrypoints/content.ts

@@ -46,6 +46,8 @@ async function exposeAgentToPage() {
 	let multiPageAgent: InstanceType<typeof MultiPageAgent> | null = null
 
 	window.addEventListener('message', async (e) => {
+		if (e.source !== window) return
+
 		const data = e.data
 		if (typeof data !== 'object' || data === null) return
 		if (data.channel !== 'PAGE_AGENT_EXT_REQUEST') return
@@ -70,11 +72,15 @@ async function exposeAgentToPage() {
 
 				try {
 					const { task, config } = payload
+					const { systemInstruction, ...agentConfig } = config
 
 					// Dispose old instance before creating new one
 					multiPageAgent?.dispose()
 
-					multiPageAgent = new MultiPageAgent(config)
+					multiPageAgent = new MultiPageAgent({
+						...agentConfig,
+						instructions: systemInstruction ? { system: systemInstruction } : undefined,
+					})
 
 					// events
 

packages/extension/src/entrypoints/hub/App.tsx

@@ -0,0 +1,250 @@
+import { FoldVertical, Plug, PlugZap, Square, UnfoldVertical, Unplug } from 'lucide-react'
+import { useEffect, useRef, useState } from 'react'
+
+import { useAgent } from '@/agent/useAgent'
+import { ActivityCard, EventCard } from '@/components/cards'
+import { Logo, MotionOverlay, StatusDot } from '@/components/misc'
+import { Button } from '@/components/ui/button'
+import { Switch } from '@/components/ui/switch'
+
+import { useHubWs } from './hub-ws'
+
+export default function App() {
+	const { status, history, activity, currentTask, config, execute, stop, configure } = useAgent()
+	const { wsState } = useHubWs(execute, stop, configure, config)
+
+	const historyRef = useRef<HTMLDivElement>(null)
+
+	useEffect(() => {
+		if (historyRef.current) {
+			historyRef.current.scrollTop = historyRef.current.scrollHeight
+		}
+	}, [history, activity])
+
+	const isRunning = status === 'running'
+	const WsIcon = wsState === 'connected' ? PlugZap : wsState === 'connecting' ? Plug : Unplug
+	const wsLabel = {
+		connected: 'Connected',
+		connecting: 'Connecting…',
+		disconnected: new URLSearchParams(location.search).get('ws') ? 'Disconnected' : 'No connection',
+	}[wsState]
+
+	return (
+		<div className="flex h-screen bg-background">
+			{/* Left — Protocol docs */}
+			<aside className="w-80 shrink-0 border-r flex flex-col bg-muted/20">
+				<a
+					href="https://alibaba.github.io/page-agent/"
+					target="_blank"
+					rel="noopener noreferrer"
+					className="flex items-center gap-2 px-5 h-12 border-b hover:bg-muted/30 transition-colors"
+				>
+					<Logo className="size-5" />
+					<span className="text-sm font-semibold tracking-tight">Page Agent Hub</span>
+					<span className="text-[9px] font-medium uppercase tracking-wider text-amber-600 bg-amber-500/10 border border-amber-500/30 rounded px-1.5 py-0.5">
+						Beta
+					</span>
+				</a>
+
+				<div className="flex-1 overflow-y-auto px-5 py-4 space-y-6">
+					<div className="text-xs text-muted-foreground leading-relaxed space-y-2">
+						<p>
+							Page Agent Hub lets local apps (e.g. MCP servers) control the Page Agent extension via
+							WebSocket.
+						</p>
+						<p>
+							Check out the official{' '}
+							<a
+								href="https://github.com/alibaba/page-agent/tree/main/packages/mcp"
+								target="_blank"
+								rel="noopener noreferrer"
+								className="underline hover:text-foreground"
+							>
+								MCP server package
+							</a>
+							.
+						</p>
+					</div>
+
+					<HubConfig />
+
+					<ProtocolDocsCollapsible />
+				</div>
+
+				<div className="border-t px-5 py-3 text-[10px] text-muted-foreground/60 flex items-center justify-between">
+					<span className="font-mono">v{__VERSION__}</span>
+					<span>
+						Built with ♥️ by{' '}
+						<a
+							href="https://github.com/gaomeng1900"
+							target="_blank"
+							rel="noopener noreferrer"
+							className="underline hover:text-foreground"
+						>
+							@Simon
+						</a>
+					</span>
+				</div>
+			</aside>
+
+			{/* Right — Live session */}
+			<main className="flex-1 flex flex-col min-w-0 relative">
+				<MotionOverlay active={isRunning} />
+
+				<header className="flex items-center justify-between border-b px-5 h-12">
+					<div className="flex items-center gap-2 text-xs text-muted-foreground">
+						<WsIcon className="size-3.5" />
+						<span>{wsLabel}</span>
+					</div>
+					<div className="flex items-center gap-3">
+						<StatusDot status={status} />
+						{isRunning && (
+							<Button variant="destructive" size="sm" onClick={stop} className="h-7 text-xs">
+								<Square className="size-3 mr-1" />
+								Stop
+							</Button>
+						)}
+					</div>
+				</header>
+
+				{/* Task banner */}
+				{currentTask && (
+					<div className="border-b px-5 py-2 bg-muted/30">
+						<div className="text-[10px] text-muted-foreground uppercase tracking-wide">
+							Current Task
+						</div>
+						<div className="text-sm font-medium truncate" title={currentTask}>
+							{currentTask}
+						</div>
+					</div>
+				)}
+
+				{/* Event stream */}
+				<div ref={historyRef} className="flex-1 overflow-y-auto p-5 space-y-2">
+					{!currentTask && history.length === 0 && !isRunning && (
+						<div className="flex flex-col items-center justify-center h-full text-muted-foreground gap-3">
+							<WsIcon className="size-10 opacity-30" />
+							<p className="text-sm">
+								{wsState === 'connected'
+									? 'Waiting for task from external caller…'
+									: 'No active session'}
+							</p>
+						</div>
+					)}
+
+					{history.map((event, index) => (
+						<EventCard key={index} event={event} />
+					))}
+
+					{activity && <ActivityCard activity={activity} />}
+				</div>
+			</main>
+		</div>
+	)
+}
+
+function HubConfig() {
+	const [allowAll, setAllowAll] = useState(false)
+
+	useEffect(() => {
+		chrome.storage.local.get('allowAllHubConnection').then((r) => {
+			setAllowAll(r.allowAllHubConnection === true)
+		})
+	}, [])
+
+	const toggle = (checked: boolean) => {
+		setAllowAll(checked)
+		chrome.storage.local.set({ allowAllHubConnection: checked })
+	}
+
+	return (
+		<div>
+			<h3 className="text-[11px] font-semibold text-foreground/80 uppercase tracking-wider mb-2">
+				Config
+			</h3>
+			<div className="group/hub relative">
+				<label
+					className={`flex items-center justify-between p-3 rounded-md border cursor-pointer text-xs ${allowAll ? 'bg-amber-500/10 border-amber-500/30 text-amber-600' : 'bg-muted/50 text-muted-foreground'}`}
+				>
+					Auto-approve connections
+					<Switch
+						checked={allowAll}
+						onCheckedChange={toggle}
+						className={allowAll ? 'data-[state=checked]:bg-amber-500' : ''}
+					/>
+				</label>
+
+				{/* hide with invisible absolute opacity-0*/}
+				<div className="group-hover/hub:visible group-hover/hub:opacity-100 transition-opacity duration-150  left-0 right-0 top-full z-10 pt-2">
+					<div className="relative p-2.5 rounded-md border border-border bg-background/60 backdrop-blur-md shadow-2xl text-muted-foreground text-xs leading-relaxed">
+						<div className="absolute -top-1.5 left-5 size-3 rotate-45 rounded-[1px] border-l border-t border-border bg-background/60 backdrop-blur-md" />
+						By default, each connection requires your approval before running tasks. <br />
+						Enable this to skip per-session approval.
+						<br />
+						<span className="font-semibold">* Use with caution!</span>
+					</div>
+				</div>
+			</div>
+		</div>
+	)
+}
+
+function ProtocolDocsCollapsible() {
+	const [open, setOpen] = useState(false)
+
+	return (
+		<div>
+			<button
+				type="button"
+				onClick={() => setOpen(!open)}
+				className="flex items-center gap-1 text-[11px] font-semibold text-foreground/80 uppercase tracking-wider cursor-pointer"
+			>
+				Docs
+				{open ? <FoldVertical className="size-3" /> : <UnfoldVertical className="size-3" />}
+			</button>
+
+			{open && (
+				<div className="mt-3 space-y-4 text-xs text-muted-foreground">
+					<p className="text-[10px]">
+						Connect via <code className="text-[10px]">hub.html?ws=PORT</code>
+					</p>
+
+					<section>
+						<h4 className="text-[11px] font-medium text-foreground/60 mb-1.5">Flow</h4>
+						<ol className="list-decimal list-inside space-y-1 text-[11px] leading-relaxed">
+							<li>Hub opens WS to caller's server</li>
+							<li>
+								Sends <code className="text-[10px]">ready</code>
+							</li>
+							<li>
+								Caller sends <code className="text-[10px]">execute</code> with task
+							</li>
+							<li>Hub runs agent, streams events</li>
+							<li>
+								Hub sends <code className="text-[10px]">result</code> or{' '}
+								<code className="text-[10px]">error</code>
+							</li>
+						</ol>
+					</section>
+
+					<section>
+						<h4 className="text-[11px] font-medium text-foreground/60 mb-1.5">Caller → Hub</h4>
+						<pre className="bg-muted/50 rounded-md p-3 font-mono text-[10px] leading-relaxed whitespace-pre-wrap">
+							{`{ type: "execute", task: string, config?: object }
+{ type: "stop" }`}
+						</pre>
+					</section>
+
+					<section>
+						<h4 className="text-[11px] font-medium text-foreground/60 mb-1.5">Hub → Caller</h4>
+						<pre className="bg-muted/50 rounded-md p-3 font-mono text-[10px] leading-relaxed whitespace-pre-wrap">
+							{`{ type: "ready" }
+{ type: "result", success: boolean, data: string }
+{ type: "error", message: string }`}
+						</pre>
+					</section>
+				</div>
+			)}
+		</div>
+	)
+}

packages/extension/src/entrypoints/hub/hub-ws.ts

@@ -0,0 +1,243 @@
+/**
+ * Hub WebSocket Protocol
+ *
+ * Hub connects as WS client to `ws://localhost:{port}`.
+ * All messages are JSON. One task at a time.
+ *
+ * Inbound (Caller → Hub):
+ *   { type: "execute", task: string, config?: object }
+ *   { type: "stop" }
+ *
+ * Outbound (Hub → Caller):
+ *   { type: "ready" }
+ *   { type: "result", success: boolean, data: string }
+ *   { type: "error", message: string }
+ */
+import type { ExecutionResult } from '@page-agent/core'
+import { useEffect, useRef, useState } from 'react'
+
+import type { ExtConfig } from '@/agent/useAgent'
+
+// --- Protocol types ---
+
+interface ExecuteMessage {
+	type: 'execute'
+	task: string
+	config?: Record<string, unknown>
+}
+
+interface StopMessage {
+	type: 'stop'
+}
+
+type InboundMessage = ExecuteMessage | StopMessage
+
+interface ReadyMessage {
+	type: 'ready'
+}
+
+interface ResultMessage {
+	type: 'result'
+	success: boolean
+	data: string
+}
+
+interface ErrorMessage {
+	type: 'error'
+	message: string
+}
+
+type OutboundMessage = ReadyMessage | ResultMessage | ErrorMessage
+
+export type HubWsState = 'connecting' | 'connected' | 'disconnected'
+
+// --- HubWs class ---
+
+export interface HubWsHandlers {
+	onExecute: (
+		task: string,
+		config?: Record<string, unknown>
+	) => Promise<{ success: boolean; data: string }>
+	onStop: () => void
+}
+
+/**
+ * Framework-agnostic WebSocket client for Hub.
+ * Connects to an external WS server, receives tasks, dispatches to handlers,
+ * and sends results back. No React, no DOM.
+ */
+export class HubWs {
+	#ws: WebSocket | null = null
+	#state: HubWsState = 'disconnected'
+	#busy = false
+	#approved = false
+	#handlers: HubWsHandlers
+	#port: number
+	#onStateChange: (state: HubWsState) => void
+
+	constructor(port: number, handlers: HubWsHandlers, onStateChange: (state: HubWsState) => void) {
+		this.#port = port
+		this.#handlers = handlers
+		this.#onStateChange = onStateChange
+	}
+
+	get state() {
+		return this.#state
+	}
+
+	get busy() {
+		return this.#busy
+	}
+
+	connect() {
+		if (this.#ws) return
+		this.#setState('connecting')
+
+		const ws = new WebSocket(`ws://localhost:${this.#port}`)
+		this.#ws = ws
+
+		ws.addEventListener('open', () => {
+			this.#setState('connected')
+			this.#send({ type: 'ready' })
+		})
+
+		ws.addEventListener('close', () => {
+			this.#ws = null
+			this.#busy = false
+			this.#approved = false
+			this.#setState('disconnected')
+		})
+
+		ws.addEventListener('message', (event) => {
+			this.#handleMessage(event.data as string)
+		})
+	}
+
+	disconnect() {
+		this.#ws?.close()
+		this.#ws = null
+		this.#busy = false
+		this.#approved = false
+		this.#setState('disconnected')
+	}
+
+	#setState(state: HubWsState) {
+		if (this.#state === state) return
+		this.#state = state
+		this.#onStateChange(state)
+	}
+
+	#send(msg: OutboundMessage) {
+		if (this.#ws?.readyState === WebSocket.OPEN) {
+			this.#ws.send(JSON.stringify(msg))
+		}
+	}
+
+	async #handleMessage(raw: string) {
+		let msg: InboundMessage
+		try {
+			msg = JSON.parse(raw)
+		} catch {
+			return
+		}
+
+		if (!(await this.#checkApproval())) {
+			this.#send({ type: 'error', message: 'User denied the connection request.' })
+			return
+		}
+
+		switch (msg.type) {
+			case 'execute':
+				this.#handleExecute(msg)
+				break
+			case 'stop':
+				this.#handlers.onStop()
+				break
+		}
+	}
+
+	async #checkApproval(): Promise<boolean> {
+		if (this.#approved) return true
+
+		const { allowAllHubConnection } = await chrome.storage.local.get('allowAllHubConnection')
+		if (allowAllHubConnection === true) {
+			this.#approved = true
+			return true
+		}
+
+		const ok = window.confirm(
+			'An external application is requesting to control your browser via Page Agent Ext.\nAllow this session?'
+		)
+		if (ok) this.#approved = true
+		return ok
+	}
+
+	async #handleExecute(msg: ExecuteMessage) {
+		if (this.#busy) {
+			this.#send({ type: 'error', message: 'Hub is busy with another task' })
+			return
+		}
+
+		this.#busy = true
+		try {
+			const result = await this.#handlers.onExecute(msg.task, msg.config)
+			this.#send({ type: 'result', success: result.success, data: result.data })
+		} catch (err) {
+			this.#send({ type: 'error', message: err instanceof Error ? err.message : String(err) })
+		} finally {
+			this.#busy = false
+		}
+	}
+}
+
+// --- React hook ---
+
+/**
+ * React hook that bridges HubWs to the agent's execute/stop/configure.
+ * Handles the config-before-execute dance internally.
+ */
+export function useHubWs(
+	execute: (task: string) => Promise<ExecutionResult>,
+	stop: () => void,
+	configure: (config: ExtConfig) => Promise<void>,
+	config: ExtConfig | null
+): { wsState: HubWsState } {
+	const wsPort = new URLSearchParams(location.search).get('ws')
+	const [wsState, setWsState] = useState<HubWsState>(() => (wsPort ? 'connecting' : 'disconnected'))
+	const hubWsRef = useRef<HubWs | null>(null)
+
+	const latestRef = useRef({ execute, stop, configure, config })
+	useEffect(() => {
+		latestRef.current = { execute, stop, configure, config }
+	})
+
+	useEffect(() => {
+		if (!wsPort) return
+
+		const hubWs = new HubWs(
+			Number(wsPort),
+			{
+				onExecute: async (task, incomingConfig) => {
+					const { execute, configure, config } = latestRef.current
+					if (incomingConfig) {
+						await configure({ ...config, ...incomingConfig } as ExtConfig)
+					}
+					const result = await execute(task)
+					return { success: result.success, data: result.data }
+				},
+				onStop: () => latestRef.current.stop(),
+			},
+			setWsState
+		)
+
+		hubWs.connect()
+		hubWsRef.current = hubWs
+
+		return () => {
+			hubWs.disconnect()
+			hubWsRef.current = null
+		}
+	}, [wsPort])
+
+	return { wsState }
+}

packages/extension/src/entrypoints/hub/index.html

@@ -0,0 +1,13 @@
+<!doctype html>
+<html>
+	<head>
+		<meta charset="UTF-8" />
+		<meta name="viewport" content="width=device-width, initial-scale=1.0" />
+		<link rel="icon" type="image/png" href="/assets/page-agent-64.png" />
+		<title>Page Agent Hub</title>
+	</head>
+	<body>
+		<div id="root"></div>
+		<script type="module" src="./main.tsx"></script>
+	</body>
+</html>

packages/extension/src/entrypoints/hub/main.tsx

@@ -0,0 +1,25 @@
+import React from 'react'
+import ReactDOM from 'react-dom/client'
+
+import { ErrorBoundary } from '@/components/ErrorBoundary'
+
+import App from './App'
+
+import '@/assets/index.css'
+
+const syncDarkMode = () => {
+	document.documentElement.classList.toggle(
+		'dark',
+		matchMedia('(prefers-color-scheme: dark)').matches
+	)
+}
+syncDarkMode()
+matchMedia('(prefers-color-scheme: dark)').addEventListener('change', syncDarkMode)
+
+ReactDOM.createRoot(document.getElementById('root')!).render(
+	<React.StrictMode>
+		<ErrorBoundary>
+			<App />
+		</ErrorBoundary>
+	</React.StrictMode>
+)

packages/extension/src/entrypoints/main-world.ts

@@ -4,8 +4,14 @@ export type Execute = (task: string, config: ExecuteConfig) => Promise<Execution
 
 export interface ExecuteConfig {
 	baseURL: string
-	apiKey: string
 	model: string
+	apiKey?: string
+
+	/**
+	 * Global system-level instructions for the agent.
+	 * Equivalent to `AgentConfig.instructions.system`.
+	 */
+	systemInstruction?: string
 
 	/**
 	 * Whether to include the initial tab (that holds this main world script) in the task.
@@ -13,6 +19,9 @@ export interface ExecuteConfig {
 	 */
 	includeInitialTab?: boolean
 
+	/** Control all unpinned tabs in the window instead of only the tab group. */
+	experimentalIncludeAllTabs?: boolean
+
 	onStatusChange?: (status: AgentStatus) => void
 	onActivity?: (activity: AgentActivity) => void
 	onHistoryUpdate?: (history: HistoricalEvent[]) => void
@@ -30,13 +39,14 @@ export default defineUnlistedScript(() => {
 		if (task.trim().length === 0) throw new Error('Task cannot be empty')
 		if (!config) throw new Error('Config is required')
 		if (!config.baseURL) throw new Error('Config must have a baseURL')
-		if (!config.apiKey) throw new Error('Config must have an apiKey')
 		if (!config.model) throw new Error('Config must have a model')
 
 		const id = getId()
 
 		const promise = new Promise<ExecutionResult>((resolve, reject) => {
 			function handleMessage(e: MessageEvent) {
+				if (e.source !== window) return
+
 				const data = e.data
 				if (typeof data !== 'object' || data === null) return
 				if (data.channel !== 'PAGE_AGENT_EXT_RESPONSE') return
@@ -85,9 +95,11 @@ export default defineUnlistedScript(() => {
 					task,
 					config: {
 						baseURL: config.baseURL,
-						apiKey: config.apiKey,
 						model: config.model,
+						apiKey: config.apiKey,
+						systemInstruction: config.systemInstruction,
 						includeInitialTab: config.includeInitialTab,
+						experimentalIncludeAllTabs: config.experimentalIncludeAllTabs,
 					},
 				},
 			},
@@ -110,9 +122,9 @@ export default defineUnlistedScript(() => {
 		)
 	}
 
-	;(window as any).PAGE_AGENT_EXT_VERSION = __EXT_VERSION__
+	;(window as any).PAGE_AGENT_EXT_VERSION = __VERSION__
 	;(window as any).PAGE_AGENT_EXT = {
-		version: __EXT_VERSION__,
+		version: __VERSION__,
 		execute,
 		stop,
 	}

packages/extension/src/entrypoints/sidepanel/App.tsx

@@ -1,6 +1,11 @@
 import { History, Send, Settings, Square } from 'lucide-react'
 import { useCallback, useEffect, useRef, useState } from 'react'
 
+import { ConfigPanel } from '@/components/ConfigPanel'
+import { HistoryDetail } from '@/components/HistoryDetail'
+import { HistoryList } from '@/components/HistoryList'
+import { ActivityCard, EventCard } from '@/components/cards'
+import { EmptyState, Logo, MotionOverlay, StatusDot } from '@/components/misc'
 import { Button } from '@/components/ui/button'
 import {
 	InputGroup,
@@ -11,11 +16,6 @@ import {
 import { saveSession } from '@/lib/db'
 
 import { useAgent } from '../../agent/useAgent'
-import { ConfigPanel } from './components/ConfigPanel'
-import { HistoryDetail } from './components/HistoryDetail'
-import { HistoryList } from './components/HistoryList'
-import { ActivityCard, EventCard } from './components/cards'
-import { EmptyState, Logo, MotionOverlay, StatusDot } from './components/misc'
 
 type View =
 	| { name: 'chat' }
@@ -56,19 +56,27 @@ export default function App() {
 		}
 	}, [history, activity])
 
-	const handleSubmit = useCallback(
-		(e?: React.SyntheticEvent) => {
-			e?.preventDefault()
-			if (!inputValue.trim() || status === 'running') return
+	const runTask = useCallback(
+		(task: string) => {
+			const normalizedTask = task.trim()
+			if (!normalizedTask || status === 'running') return
 
-			const taskToExecute = inputValue.trim()
 			setInputValue('')
+			setView({ name: 'chat' })
 
-			execute(taskToExecute).catch((error) => {
+			execute(normalizedTask).catch((error) => {
 				console.error('[SidePanel] Failed to execute task:', error)
 			})
 		},
-		[inputValue, status, execute]
+		[execute, status]
+	)
+
+	const handleSubmit = useCallback(
+		(e?: React.SyntheticEvent) => {
+			e?.preventDefault()
+			runTask(inputValue)
+		},
+		[inputValue, runTask]
 	)
 
 	const handleStop = useCallback(() => {
@@ -103,12 +111,19 @@ export default function App() {
 			<HistoryList
 				onSelect={(id) => setView({ name: 'history-detail', sessionId: id })}
 				onBack={() => setView({ name: 'chat' })}
+				onRerun={runTask}
 			/>
 		)
 	}
 
 	if (view.name === 'history-detail') {
-		return <HistoryDetail sessionId={view.sessionId} onBack={() => setView({ name: 'history' })} />
+		return (
+			<HistoryDetail
+				sessionId={view.sessionId}
+				onBack={() => setView({ name: 'history' })}
+				onRerun={runTask}
+			/>
+		)
 	}
 
 	// --- Chat view ---
@@ -132,6 +147,8 @@ export default function App() {
 						size="icon-sm"
 						onClick={() => setView({ name: 'history' })}
 						className="cursor-pointer"
+						aria-label="History"
+						title="History"
 					>
 						<History className="size-3.5" />
 					</Button>
@@ -140,6 +157,8 @@ export default function App() {
 						size="icon-sm"
 						onClick={() => setView({ name: 'config' })}
 						className="cursor-pointer"
+						aria-label="Settings"
+						title="Settings"
 					>
 						<Settings className="size-3.5" />
 					</Button>
@@ -163,7 +182,6 @@ export default function App() {
 					{showEmptyState && <EmptyState />}
 
 					{history.map((event, index) => (
-						// eslint-disable-next-line react-x/no-array-index-key
 						<EventCard key={index} event={event} />
 					))}
 
@@ -191,6 +209,8 @@ export default function App() {
 								variant="destructive"
 								onClick={handleStop}
 								className="size-7"
+								aria-label="Stop task"
+								title="Stop task"
 							>
 								<Square className="size-3" />
 							</InputGroupButton>
@@ -201,6 +221,8 @@ export default function App() {
 								onClick={() => handleSubmit()}
 								disabled={!inputValue.trim()}
 								className="size-7 cursor-pointer"
+								aria-label="Send"
+								title="Send"
 							>
 								<Send className="size-3" />
 							</InputGroupButton>

packages/extension/src/entrypoints/sidepanel/components/HistoryList.tsx

@@ -1,119 +0,0 @@
-import { ArrowLeft, CheckCircle, Trash2, XCircle } from 'lucide-react'
-import { useCallback, useEffect, useState } from 'react'
-
-import { Button } from '@/components/ui/button'
-import { type SessionRecord, clearSessions, deleteSession, listSessions } from '@/lib/db'
-
-function timeAgo(ts: number): string {
-	const seconds = Math.floor((Date.now() - ts) / 1000)
-	if (seconds < 60) return 'just now'
-	const minutes = Math.floor(seconds / 60)
-	if (minutes < 60) return `${minutes}m ago`
-	const hours = Math.floor(minutes / 60)
-	if (hours < 24) return `${hours}h ago`
-	const days = Math.floor(hours / 24)
-	return `${days}d ago`
-}
-
-export function HistoryList({
-	onSelect,
-	onBack,
-}: {
-	onSelect: (id: string) => void
-	onBack: () => void
-}) {
-	const [sessions, setSessions] = useState<SessionRecord[]>([])
-	const [loading, setLoading] = useState(true)
-
-	const load = useCallback(async () => {
-		setSessions(await listSessions())
-		setLoading(false)
-	}, [])
-
-	useEffect(() => {
-		// eslint-disable-next-line react-hooks/set-state-in-effect
-		load()
-	}, [load])
-
-	const handleDelete = async (e: React.MouseEvent, id: string) => {
-		e.stopPropagation()
-		await deleteSession(id)
-		setSessions((prev) => prev.filter((s) => s.id !== id))
-	}
-
-	return (
-		<div className="flex flex-col h-screen bg-background">
-			{/* Header */}
-			<header className="flex items-center gap-2 border-b px-3 py-2">
-				<Button variant="ghost" size="icon-sm" onClick={onBack} className="cursor-pointer">
-					<ArrowLeft className="size-3.5" />
-				</Button>
-				<span className="text-sm font-medium flex-1">History</span>
-				{sessions.length > 0 && (
-					<Button
-						variant="ghost"
-						size="sm"
-						onClick={async () => {
-							await clearSessions()
-							setSessions([])
-						}}
-						className="text-[10px] text-muted-foreground hover:text-destructive cursor-pointer h-6 px-2"
-					>
-						<Trash2 className="size-3 mr-1" />
-						Clear All
-					</Button>
-				)}
-			</header>
-
-			{/* List */}
-			<div className="flex-1 overflow-y-auto">
-				{loading && (
-					<div className="flex items-center justify-center h-32 text-xs text-muted-foreground">
-						Loading...
-					</div>
-				)}
-
-				{!loading && sessions.length === 0 && (
-					<div className="flex items-center justify-center h-32 text-xs text-muted-foreground">
-						No history yet
-					</div>
-				)}
-
-				{sessions.map((session) => (
-					<div
-						key={session.id}
-						role="button"
-						tabIndex={0}
-						onClick={() => onSelect(session.id)}
-						onKeyDown={(e) => e.key === 'Enter' && onSelect(session.id)}
-						className="w-full text-left px-3 py-2.5 border-b hover:bg-muted/50 transition-colors cursor-pointer flex items-start gap-2 group"
-					>
-						{/* Status icon */}
-						{session.status === 'completed' ? (
-							<CheckCircle className="size-3.5 text-green-500 shrink-0 mt-0.5" />
-						) : (
-							<XCircle className="size-3.5 text-destructive shrink-0 mt-0.5" />
-						)}
-
-						{/* Content */}
-						<div className="flex-1 min-w-0">
-							<p className="text-xs font-medium truncate">{session.task}</p>
-							<p className="text-[10px] text-muted-foreground mt-0.5">
-								{timeAgo(session.createdAt)} · {session.history.length} steps
-							</p>
-						</div>
-
-						{/* Delete */}
-						<button
-							type="button"
-							onClick={(e) => handleDelete(e, session.id)}
-							className="opacity-0 group-hover:opacity-100 transition-opacity p-1 hover:text-destructive cursor-pointer shrink-0"
-						>
-							<Trash2 className="size-3" />
-						</button>
-					</div>
-				))}
-			</div>
-		</div>
-	)
-}

packages/extension/src/entrypoints/sidepanel/main.tsx

@@ -1,8 +1,9 @@
 import React from 'react'
 import ReactDOM from 'react-dom/client'
 
+import { ErrorBoundary } from '@/components/ErrorBoundary'
+
 import App from './App'
-import { ErrorBoundary } from './components/ErrorBoundary'
 
 import '@/assets/index.css'
 

packages/extension/src/lib/history-export.ts

@@ -0,0 +1,60 @@
+import type { HistoricalEvent } from '@page-agent/core'
+
+const EXPORT_FILE_PREFIX = 'page-agent-history'
+const MAX_TASK_SLUG_LENGTH = 40
+
+export function serializeHistoryExport(history: HistoricalEvent[]): string {
+	return `${JSON.stringify(history, null, 2)}\n`
+}
+
+export function buildHistoryExportFilename(task: string, createdAt: number): string {
+	const taskSlug = sanitizeTaskForFilename(task)
+	const timestamp = formatTimestampForFilename(createdAt)
+
+	return taskSlug
+		? `${EXPORT_FILE_PREFIX}-${taskSlug}-${timestamp}.json`
+		: `${EXPORT_FILE_PREFIX}-${timestamp}.json`
+}
+
+export function downloadHistoryExport(
+	task: string,
+	createdAt: number,
+	history: HistoricalEvent[]
+): void {
+	const filename = buildHistoryExportFilename(task, createdAt)
+	const content = serializeHistoryExport(history)
+	const blob = new Blob([content], { type: 'application/json;charset=utf-8' })
+	const url = URL.createObjectURL(blob)
+	const link = document.createElement('a')
+
+	link.href = url
+	link.download = filename
+	link.click()
+
+	URL.revokeObjectURL(url)
+}
+
+function sanitizeTaskForFilename(task: string): string {
+	return task
+		.trim()
+		.toLowerCase()
+		.replace(/[^a-z0-9]+/g, '-')
+		.replace(/^-+|-+$/g, '')
+		.slice(0, MAX_TASK_SLUG_LENGTH)
+}
+
+function formatTimestampForFilename(createdAt: number): string {
+	const date = new Date(createdAt)
+	const year = date.getFullYear()
+	const month = pad(date.getMonth() + 1)
+	const day = pad(date.getDate())
+	const hours = pad(date.getHours())
+	const minutes = pad(date.getMinutes())
+	const seconds = pad(date.getSeconds())
+
+	return `${year}-${month}-${day}_${hours}-${minutes}-${seconds}`
+}
+
+function pad(value: number): string {
+	return value.toString().padStart(2, '0')
+}

packages/extension/src/types/globals.d.ts

@@ -1,2 +1 @@
-declare const __EXT_VERSION__: string
-declare const __CORE_VERSION__: string
+declare const __VERSION__: string

packages/extension/tsconfig.json

@@ -3,26 +3,11 @@
     "compilerOptions": {
         "tsBuildInfoFile": "./node_modules/.tmp/tsconfig.tsbuildinfo",
         "useDefineForClassFields": true,
-        "noEmit": false,
-        "allowImportingTsExtensions": false,
         "strictNullChecks": true,
         "jsx": "react-jsx",
-        "baseUrl": ".",
+        "types": ["node", "chrome"],
         "paths": {
-            // Self root
-            "@/*": ["src/*"],
-
-            "@page-agent/llms": ["../llms/src/index.ts"],
-            "@page-agent/page-controller": ["../page-controller/src/PageController.ts"],
-            "@page-agent/core": ["../core/src/PageAgentCore.ts"],
-            "@page-agent/ui": ["../ui/src/index.ts"]
+            "@/*": ["./src/*"]
         }
-    },
-    "references": [
-        //
-        { "path": "../llms" },
-        { "path": "../page-controller" },
-        { "path": "../core" },
-        { "path": "../ui" }
-    ]
+    }
 }

packages/extension/wxt.config.js

@@ -19,8 +19,7 @@ export default defineConfig({
 	vite: () => ({
 		plugins: [tailwindcss()],
 		define: {
-			__EXT_VERSION__: JSON.stringify(pkg.version),
-			__CORE_VERSION__: JSON.stringify(pkg.dependencies['@page-agent/core']),
+			__VERSION__: JSON.stringify(pkg.version),
 		},
 		optimizeDeps: {
 			force: true,
@@ -37,7 +36,11 @@ export default defineConfig({
 			},
 		},
 	}),
+	zip: {
+		artifactTemplate: 'page-agent-ext-{{version}}-{{browser}}.zip',
+	},
 	manifest: {
+		key: 'MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAqbzT0iTYeYlnCvDJIGDnGU8oarJgZILDzSfLi/ufuSxXEPDKuMyD892GhvrMCZNVHS11Sh6NYUOc/PcUOhtaR2urHtcNkrpSJNV10zUamY7fxBdVEkOucfyLu8INVy+teis62MoRWYPaUPkfZUjrLGW8MsZ9aFzARfu9GGDEp2EAYsWDN6w6vyz9LJ82pm542EWnVT4MjmDPgvYFCWGBtaU/dfHD+GAX6URJFapsCvryVURKJ+76c/GO9/I3EX1IBfbY6dec78bLCMvVxiTmiv36KyGPwX1OpakW8IiCpXWdbAxjm+plbYlp5t5zTyyoE3sOSFeXsBH0Kg27o8GcvQIDAQAB',
 		default_locale: 'en',
 		name: '__MSG_extName__',
 		description: '__MSG_extDescription__',
@@ -59,5 +62,8 @@ export default defineConfig({
 		side_panel: {
 			default_path: 'sidepanel/index.html',
 		},
+		externally_connectable: {
+			matches: ['http://localhost/*'],
+		},
 	},
 })

packages/llms/package.json

@@ -1,15 +1,25 @@
 {
     "name": "@page-agent/llms",
-    "version": "1.3.0",
+    "version": "1.8.2",
     "type": "module",
-    "main": "./dist/lib/page-agent-llms.js",
-    "module": "./dist/lib/page-agent-llms.js",
-    "types": "./dist/lib/index.d.ts",
+    "main": "./src/index.ts",
+    "types": "./src/index.ts",
     "exports": {
         ".": {
-            "types": "./dist/lib/index.d.ts",
-            "import": "./dist/lib/page-agent-llms.js",
-            "default": "./dist/lib/page-agent-llms.js"
+            "types": "./src/index.ts",
+            "default": "./src/index.ts"
+        }
+    },
+    "publishConfig": {
+        "main": "./dist/lib/page-agent-llms.js",
+        "module": "./dist/lib/page-agent-llms.js",
+        "types": "./dist/lib/index.d.ts",
+        "exports": {
+            ".": {
+                "types": "./dist/lib/index.d.ts",
+                "import": "./dist/lib/page-agent-llms.js",
+                "default": "./dist/lib/page-agent-llms.js"
+            }
         }
     },
     "files": [
@@ -33,11 +43,16 @@
     "homepage": "https://alibaba.github.io/page-agent/",
     "scripts": {
         "build": "vite build",
-        "prepublishOnly": "node -e \"const fs=require('fs');['LICENSE'].forEach(f=>fs.copyFileSync('../../'+f,f))\"",
-        "postpublish": "node -e \"['LICENSE'].forEach(f=>{try{require('fs').unlinkSync(f)}catch{}})\""
+        "prepublishOnly": "node ../../scripts/pre-publish.js",
+        "postpublish": "node ../../scripts/post-publish.js"
     },
     "dependencies": {
-        "chalk": "^5.6.2",
-        "zod": "^4.3.5"
+        "chalk": "^5.6.2"
+    },
+    "peerDependencies": {
+        "zod": "^3.25.0 || ^4.0.0"
+    },
+    "devDependencies": {
+        "zod": "^4.4.3"
     }
 }

packages/llms/src/OpenAIClient.ts

@@ -1,7 +1,9 @@
 /**
  * OpenAI Client implementation
  */
-import { InvokeError, InvokeErrorType } from './errors'
+import * as z from 'zod/v4'
+
+import { InvokeError, InvokeErrorTypes } from './errors'
 import type { InvokeOptions, InvokeResult, LLMClient, LLMConfig, Message, Tool } from './types'
 import { modelPatch, zodToOpenAITool } from './utils'
 
@@ -27,19 +29,33 @@ export class OpenAIClient implements LLMClient {
 		const openaiTools = Object.entries(tools).map(([name, t]) => zodToOpenAITool(name, t))
 
 		// Build request body
+
+		let toolChoice: unknown = 'required'
+		if (options?.toolChoiceName && !this.config.disableNamedToolChoice) {
+			toolChoice = { type: 'function', function: { name: options.toolChoiceName } }
+		}
+
 		const requestBody: Record<string, unknown> = {
 			model: this.config.model,
 			temperature: this.config.temperature,
 			messages,
 			tools: openaiTools,
 			parallel_tool_calls: false,
-			// Require tool call: specific tool if provided, otherwise any tool
-			tool_choice: options?.toolChoiceName
-				? { type: 'function', function: { name: options.toolChoiceName } }
-				: 'required',
+			tool_choice: toolChoice,
 		}
 
 		modelPatch(requestBody)
+		let transformedBody: Record<string, unknown> | undefined
+		try {
+			transformedBody = this.config.transformRequestBody(requestBody)
+		} catch (error) {
+			throw new InvokeError(
+				InvokeErrorTypes.CONFIG_ERROR,
+				`transformRequestBody failed: ${(error as Error).message}`,
+				error
+			)
+		}
+		const finalRequestBody = transformedBody ?? requestBody
 
 		// 2. Call API
 		let response: Response
@@ -48,16 +64,16 @@ export class OpenAIClient implements LLMClient {
 				method: 'POST',
 				headers: {
 					'Content-Type': 'application/json',
-					Authorization: `Bearer ${this.config.apiKey}`,
+					...(this.config.apiKey && { Authorization: `Bearer ${this.config.apiKey}` }),
 				},
-				body: JSON.stringify(requestBody),
+				body: JSON.stringify(finalRequestBody),
 				signal: abortSignal,
 			})
 		} catch (error: unknown) {
 			const isAbortError = (error as any)?.name === 'AbortError'
 			const errorMessage = isAbortError ? 'Network request aborted' : 'Network request failed'
 			if (!isAbortError) console.error(error)
-			throw new InvokeError(InvokeErrorType.NETWORK_ERROR, errorMessage, error)
+			throw new InvokeError(InvokeErrorTypes.NETWORK_ERROR, errorMessage, error)
 		}
 
 		// 3. Handle HTTP errors
@@ -68,27 +84,27 @@ export class OpenAIClient implements LLMClient {
 
 			if (response.status === 401 || response.status === 403) {
 				throw new InvokeError(
-					InvokeErrorType.AUTH_ERROR,
+					InvokeErrorTypes.AUTH_ERROR,
 					`Authentication failed: ${errorMessage}`,
 					errorData
 				)
 			}
 			if (response.status === 429) {
 				throw new InvokeError(
-					InvokeErrorType.RATE_LIMIT,
+					InvokeErrorTypes.RATE_LIMIT,
 					`Rate limit exceeded: ${errorMessage}`,
 					errorData
 				)
 			}
 			if (response.status >= 500) {
 				throw new InvokeError(
-					InvokeErrorType.SERVER_ERROR,
+					InvokeErrorTypes.SERVER_ERROR,
 					`Server error: ${errorMessage}`,
 					errorData
 				)
 			}
 			throw new InvokeError(
-				InvokeErrorType.UNKNOWN,
+				InvokeErrorTypes.UNKNOWN,
 				`HTTP ${response.status}: ${errorMessage}`,
 				errorData
 			)
@@ -99,7 +115,7 @@ export class OpenAIClient implements LLMClient {
 
 		const choice = data.choices?.[0]
 		if (!choice) {
-			throw new InvokeError(InvokeErrorType.UNKNOWN, 'No choices in response', data)
+			throw new InvokeError(InvokeErrorTypes.UNKNOWN, 'No choices in response', data)
 		}
 
 		// Check finish_reason
@@ -110,21 +126,21 @@ export class OpenAIClient implements LLMClient {
 				break
 			case 'length':
 				throw new InvokeError(
-					InvokeErrorType.CONTEXT_LENGTH,
+					InvokeErrorTypes.CONTEXT_LENGTH,
 					'Response truncated: max tokens reached',
 					undefined,
 					data
 				)
 			case 'content_filter':
 				throw new InvokeError(
-					InvokeErrorType.CONTENT_FILTER,
+					InvokeErrorTypes.CONTENT_FILTER,
 					'Content filtered by safety system',
 					undefined,
 					data
 				)
 			default:
 				throw new InvokeError(
-					InvokeErrorType.UNKNOWN,
+					InvokeErrorTypes.UNKNOWN,
 					`Unexpected finish_reason: ${choice.finish_reason}`,
 					undefined,
 					data
@@ -139,7 +155,7 @@ export class OpenAIClient implements LLMClient {
 		const toolCallName = normalizedChoice?.message?.tool_calls?.[0]?.function?.name
 		if (!toolCallName) {
 			throw new InvokeError(
-				InvokeErrorType.NO_TOOL_CALL,
+				InvokeErrorTypes.NO_TOOL_CALL,
 				'No tool call found in response',
 				undefined,
 				data
@@ -149,7 +165,7 @@ export class OpenAIClient implements LLMClient {
 		const tool = tools[toolCallName]
 		if (!tool) {
 			throw new InvokeError(
-				InvokeErrorType.UNKNOWN,
+				InvokeErrorTypes.UNKNOWN,
 				`Tool "${toolCallName}" not found in tools`,
 				undefined,
 				data
@@ -160,7 +176,7 @@ export class OpenAIClient implements LLMClient {
 		const argString = normalizedChoice.message?.tool_calls?.[0]?.function?.arguments
 		if (!argString) {
 			throw new InvokeError(
-				InvokeErrorType.INVALID_TOOL_ARGS,
+				InvokeErrorTypes.INVALID_TOOL_ARGS,
 				'No tool call arguments found',
 				undefined,
 				data
@@ -172,7 +188,7 @@ export class OpenAIClient implements LLMClient {
 			parsedArgs = JSON.parse(argString)
 		} catch (error) {
 			throw new InvokeError(
-				InvokeErrorType.INVALID_TOOL_ARGS,
+				InvokeErrorTypes.INVALID_TOOL_ARGS,
 				'Failed to parse tool arguments as JSON',
 				error,
 				data
@@ -182,9 +198,9 @@ export class OpenAIClient implements LLMClient {
 		// Validate with schema
 		const validation = tool.inputSchema.safeParse(parsedArgs)
 		if (!validation.success) {
-			console.error(validation.error)
+			console.error(z.prettifyError(validation.error))
 			throw new InvokeError(
-				InvokeErrorType.INVALID_TOOL_ARGS,
+				InvokeErrorTypes.INVALID_TOOL_ARGS,
 				'Tool arguments validation failed',
 				validation.error,
 				data
@@ -198,7 +214,7 @@ export class OpenAIClient implements LLMClient {
 			toolResult = await tool.execute(toolInput)
 		} catch (e) {
 			throw new InvokeError(
-				InvokeErrorType.TOOL_EXECUTION_ERROR,
+				InvokeErrorTypes.TOOL_EXECUTION_ERROR,
 				`Tool execution failed: ${(e as Error).message}`,
 				e,
 				data
@@ -220,7 +236,7 @@ export class OpenAIClient implements LLMClient {
 				reasoningTokens: data.usage?.completion_tokens_details?.reasoning_tokens,
 			},
 			rawResponse: data,
-			rawRequest: requestBody,
+			rawRequest: finalRequestBody,
 		}
 	}
 }

packages/llms/src/env.d.ts

@@ -1 +0,0 @@
-/// <reference types="vite/client" />

packages/llms/src/errors.ts

@@ -2,7 +2,7 @@
  * Error types and error handling for LLM invocations
  */
 
-export const InvokeErrorType = {
+export const InvokeErrorTypes = {
 	// Retryable
 	NETWORK_ERROR: 'network_error', // Network error, retry
 	RATE_LIMIT: 'rate_limit', // Rate limit, retry
@@ -14,12 +14,13 @@ export const InvokeErrorType = {
 	UNKNOWN: 'unknown',
 
 	// Non-retryable
+	CONFIG_ERROR: 'config_error', // Invalid local configuration or hook
 	AUTH_ERROR: 'auth_error', // Authentication failed
 	CONTEXT_LENGTH: 'context_length', // Prompt too long
 	CONTENT_FILTER: 'content_filter', // Content filtered
 } as const
 
-export type InvokeErrorType = (typeof InvokeErrorType)[keyof typeof InvokeErrorType]
+type InvokeErrorType = (typeof InvokeErrorTypes)[keyof typeof InvokeErrorTypes]
 
 export class InvokeError extends Error {
 	type: InvokeErrorType
@@ -44,13 +45,13 @@ export class InvokeError extends Error {
 		if (isAbortError) return false
 
 		const retryableTypes: InvokeErrorType[] = [
-			InvokeErrorType.NETWORK_ERROR,
-			InvokeErrorType.RATE_LIMIT,
-			InvokeErrorType.SERVER_ERROR,
-			InvokeErrorType.NO_TOOL_CALL,
-			InvokeErrorType.INVALID_TOOL_ARGS,
-			InvokeErrorType.TOOL_EXECUTION_ERROR,
-			InvokeErrorType.UNKNOWN,
+			InvokeErrorTypes.NETWORK_ERROR,
+			InvokeErrorTypes.RATE_LIMIT,
+			InvokeErrorTypes.SERVER_ERROR,
+			InvokeErrorTypes.NO_TOOL_CALL,
+			InvokeErrorTypes.INVALID_TOOL_ARGS,
+			InvokeErrorTypes.TOOL_EXECUTION_ERROR,
+			InvokeErrorTypes.UNKNOWN,
 		]
 		return retryableTypes.includes(type)
 	}

packages/llms/src/index.ts

@@ -1,25 +1,28 @@
 import { OpenAIClient } from './OpenAIClient'
 import { DEFAULT_TEMPERATURE, LLM_MAX_RETRIES } from './constants'
-import { InvokeError } from './errors'
+import { InvokeError, InvokeErrorTypes } from './errors'
 import type { InvokeOptions, InvokeResult, LLMClient, LLMConfig, Message, Tool } from './types'
 
-export type { InvokeError, InvokeOptions, InvokeResult, LLMClient, LLMConfig, Message, Tool }
+export { InvokeError, InvokeErrorTypes }
+export type { InvokeOptions, InvokeResult, LLMClient, LLMConfig, Message, Tool }
 
 export function parseLLMConfig(config: LLMConfig): Required<LLMConfig> {
 	// Runtime validation as defensive programming (types already guarantee these)
-	if (!config.baseURL || !config.apiKey || !config.model) {
+	if (!config.baseURL || !config.model) {
 		throw new Error(
-			'[PageAgent] LLM configuration required. Please provide: baseURL, apiKey, model. ' +
-				'See: https://alibaba.github.io/page-agent/#/docs/features/models'
+			'[PageAgent] LLM configuration required. Please provide: baseURL, model. ' +
+				'See: https://alibaba.github.io/page-agent/docs/features/models'
 		)
 	}
 
 	return {
 		baseURL: config.baseURL,
-		apiKey: config.apiKey,
 		model: config.model,
+		apiKey: config.apiKey || '',
 		temperature: config.temperature ?? DEFAULT_TEMPERATURE,
 		maxRetries: config.maxRetries ?? LLM_MAX_RETRIES,
+		transformRequestBody: config.transformRequestBody ?? ((requestBody) => requestBody),
+		disableNamedToolChoice: config.disableNamedToolChoice ?? false,
 		customFetch: (config.customFetch ?? fetch).bind(globalThis), // fetch will be illegal unless bound
 	}
 }

packages/llms/src/types.ts

@@ -1,7 +1,7 @@
 /**
  * Core types for LLM integration
  */
-import type { z } from 'zod'
+import type * as z from 'zod/v4'
 
 /**
  * Message format - OpenAI standard (industry standard)
@@ -89,12 +89,28 @@ export interface InvokeResult<TResult = unknown> {
  */
 export interface LLMConfig {
 	baseURL: string
-	apiKey: string
 	model: string
+	apiKey?: string
 
 	temperature?: number
 	maxRetries?: number
 
+	/**
+	 * Transform the final request body before sending it to the provider.
+	 * Use this to implement provider-specific request tweaks such as caching hints or custom flags.
+	 *
+	 * Return a new object, or mutate the input object and return undefined.
+	 */
+	transformRequestBody?: (
+		requestBody: Record<string, unknown>
+	) => Record<string, unknown> | undefined
+
+	/**
+	 * remove the tool_choice field from the request.
+	 * @note fix "Invalid tool_choice type: 'object'" for some LLMs.
+	 */
+	disableNamedToolChoice?: boolean
+
 	/**
 	 * Custom fetch function for LLM API requests.
 	 * Use this to customize headers, credentials, proxy, etc.

packages/llms/src/utils.ts

@@ -2,13 +2,11 @@
  * Utility functions for LLM integration
  */
 import chalk from 'chalk'
-import * as z from 'zod'
+import * as z from 'zod/v4'
 
 import type { Tool } from './types'
 
-function debug(message: string) {
-	console.debug(chalk.gray('[LLM]'), message)
-}
+const debug = console.debug.bind(console, chalk.gray('[LLM]'))
 
 /**
  * Convert Zod schema to OpenAI tool format
@@ -38,6 +36,7 @@ export function modelPatch(body: Record<string, any>) {
 	if (modelName.startsWith('qwen')) {
 		debug('Applying Qwen patch: use higher temperature for auto fixing')
 		body.temperature = Math.max(body.temperature || 0, 1.0)
+		body.enable_thinking = false
 	}
 
 	if (modelName.startsWith('claude')) {
@@ -54,6 +53,13 @@ export function modelPatch(body: Record<string, any>) {
 			debug('Applying Claude patch: convert tool_choice format')
 			body.tool_choice = { type: 'tool', name: body.tool_choice.function.name }
 		}
+
+		// TODO: Claude naming pattern has changed
+		// needs proper handling
+		if (modelName.startsWith('claude-opus-4-7') || modelName.startsWith('claude-opus-47')) {
+			debug('Applying Claude-4.7 patch: remove temperature')
+			delete body.temperature
+		}
 	}
 
 	if (modelName.startsWith('grok')) {
@@ -74,6 +80,13 @@ export function modelPatch(body: Record<string, any>) {
 		} else if (modelName.startsWith('gpt-51')) {
 			debug('Applying GPT-51 patch: disable reasoning')
 			body.reasoning_effort = 'none'
+		} else if (modelName.startsWith('gpt-54')) {
+			debug('Applying GPT-5.4 patch: remove reasoning_effort')
+			delete body.reasoning_effort
+		} else if (modelName.startsWith('gpt-55')) {
+			debug('Applying GPT-5.4 patch: remove reasoning_effort and temperature')
+			delete body.reasoning_effort
+			delete body.temperature
 		} else if (modelName.startsWith('gpt-5-mini')) {
 			debug('Applying GPT-5-mini patch: set reasoning effort to low, temperature to 1')
 			body.reasoning_effort = 'low'
@@ -89,6 +102,20 @@ export function modelPatch(body: Record<string, any>) {
 		body.reasoning_effort = 'minimal'
 	}
 
+	if (modelName.startsWith('deepseek')) {
+		debug('Applying DeepSeek patch: remove tool_choice')
+		delete body.tool_choice
+	}
+
+	if (modelName.startsWith('minimax')) {
+		debug('Applying MiniMax patch: clamp temperature to (0, 1]')
+		// MiniMax API rejects temperature = 0; clamp to a small positive value
+		body.temperature = Math.max(body.temperature || 0, 0.01)
+		if (body.temperature > 1) body.temperature = 1
+		// MiniMax does not support parallel_tool_calls
+		delete body.parallel_tool_calls
+	}
+
 	return body
 }
 

packages/llms/tsconfig.dts.json

@@ -1,9 +0,0 @@
-{
-    "extends": "./tsconfig.json",
-    "compilerOptions": {
-        // @workaround DTS bug
-        // dts do not work with monorepo path mapping
-        // disable path mapping for it
-        "paths": {}
-    }
-}

packages/llms/tsconfig.json

@@ -1,11 +1,7 @@
 {
     "extends": "../../tsconfig.base.json",
     "compilerOptions": {
-        "tsBuildInfoFile": "./node_modules/.tmp/tsconfig.tsbuildinfo",
-        "noEmit": false,
-        "allowImportingTsExtensions": false,
-        "baseUrl": ".",
-        "outDir": "dist"
+        "tsBuildInfoFile": "./node_modules/.tmp/tsconfig.tsbuildinfo"
     },
     "include": ["**/*.ts"],
     "exclude": ["dist", "node_modules"]

packages/llms/vite.config.js

@@ -11,11 +11,18 @@ console.log(chalk.cyan(`📦 Building @page-agent/llms`))
 
 export default defineConfig({
 	clearScreen: false,
-	plugins: [dts({ tsconfigPath: './tsconfig.dts.json', bundleTypes: true })],
+	plugins: [
+		dts({
+			bundleTypes: true,
+			compilerOptions: {
+				composite: true,
+				noEmit: false,
+				emitDeclarationOnly: true,
+				declaration: true,
+			},
+		}),
+	],
 	publicDir: false,
-	esbuild: {
-		keepNames: true,
-	},
 	build: {
 		lib: {
 			entry: resolve(__dirname, 'src/index.ts'),
@@ -25,7 +32,7 @@ export default defineConfig({
 		},
 		outDir: resolve(__dirname, 'dist', 'lib'),
 		rollupOptions: {
-			external: ['chalk', 'zod'],
+			external: ['chalk', 'zod', 'zod/v4'],
 		},
 		minify: false,
 		sourcemap: true,

packages/mcp/README.md

@@ -0,0 +1,93 @@
+# @page-agent/mcp
+
+MCP server that lets AI agent clients (Claude Desktop, Copilot, etc.) control your browser through the [Page Agent](https://github.com/alibaba/page-agent) extension.
+
+## Prerequisites
+
+- Node.js >= 20
+- [Page Agent Extension](https://chromewebstore.google.com/detail/page-agent-ext/akldabonmimlicnjlflnapfeklbfemhj) installed in Chrome
+- An LLM API key (OpenAI-compatible)
+
+## Installation
+
+### Claude Desktop
+
+Add to `~/Library/Application Support/Claude/claude_desktop_config.json`:
+
+```json
+{
+    "mcpServers": {
+        "page-agent": {
+            "command": "npx",
+            "args": ["-y", "@page-agent/mcp"],
+            "env": {
+                "LLM_BASE_URL": "https://dashscope.aliyuncs.com/compatible-mode/v1",
+                "LLM_API_KEY": "sk-xxx",
+                "LLM_MODEL_NAME": "qwen3.5-plus"
+            }
+        }
+    }
+}
+```
+
+### Cursor / Copilot
+
+Same format — add the config to the MCP settings of your client.
+
+## MCP Tools
+
+| Tool           | Input              | Description                                           |
+| -------------- | ------------------ | ----------------------------------------------------- |
+| `execute_task` | `{ task: string }` | Execute a browser task in natural language. Blocking. |
+| `get_status`   | —                  | Returns `{ connected, busy }`                         |
+| `stop_task`    | —                  | Stop the currently running task.                      |
+
+## Environment Variables
+
+| Variable         | Default | Description           |
+| ---------------- | ------- | --------------------- |
+| `LLM_BASE_URL`   | —       | LLM API base URL      |
+| `LLM_API_KEY`    | —       | LLM API key           |
+| `LLM_MODEL_NAME` | —       | Model name            |
+| `PORT`           | `38401` | HTTP + WebSocket port |
+
+## How It Works
+
+```
+┌──────────────┐  stdio   ┌──────────────────┐  WebSocket   ┌──────────────┐
+│ Claude /     │◄────────►│ @page-agent/mcp  │◄────────────►│ Hub tab      │
+│ Copilot      │  (MCP)   │ (Node.js)        │  (localhost) │ (extension)  │
+└──────────────┘          └──────────────────┘              └──────┬───────┘
+                                   │                               │
+                                   │ HTTP                          │ useAgent
+                                   ▼                               ▼
+                          ┌──────────────────┐              ┌──────────────┐
+                          │ Launcher page    │              │ MultiPage    │
+                          │ (localhost:PORT) │              │ Agent        │
+                          └──────────────────┘              └──────────────┘
+```
+
+1. Agent client starts the MCP server via stdio (`npx @page-agent/mcp`).
+2. Server starts HTTP + WS on `localhost:PORT`, opens the launcher page in browser.
+3. Launcher page triggers the extension to open a **hub tab** (`hub.html?ws=PORT`).
+4. Hub connects to the WS server. MCP tools now proxy tasks to the hub.
+
+The hub tab speaks a generic WebSocket protocol (defined in `hub-ws.ts` in the extension package) and has no knowledge of MCP. See the hub's protocol docs for message format details.
+
+## Architecture
+
+Pure JS ESM, no build step. Source files are the published artifacts.
+
+```
+src/
+├── index.js        # CLI entry: MCP server (stdio) + opens launcher
+├── hub-bridge.js   # HTTP server + WebSocket bridge to hub tab
+└── launcher.html   # Bootstrap page: detects extension, triggers hub open
+```
+
+## Dev
+
+```bash
+npm run dev:ext
+npx @modelcontextprotocol/inspector node packages/mcp/src/index.js
+```

packages/mcp/package.json

@@ -0,0 +1,35 @@
+{
+    "name": "@page-agent/mcp",
+    "private": false,
+    "version": "1.8.2",
+    "type": "module",
+    "bin": {
+        "page-agent-mcp": "src/index.js"
+    },
+    "files": [
+        "src/"
+    ],
+    "description": "MCP server for controlling the browser via Page Agent extension",
+    "keywords": [
+        "page-agent",
+        "mcp",
+        "browser-automation",
+        "chrome-extension"
+    ],
+    "author": "Simon<gaomeng1900>",
+    "license": "MIT",
+    "repository": {
+        "type": "git",
+        "url": "https://github.com/alibaba/page-agent.git",
+        "directory": "packages/mcp"
+    },
+    "homepage": "https://alibaba.github.io/page-agent/",
+    "engines": {
+        "node": ">=20"
+    },
+    "dependencies": {
+        "@modelcontextprotocol/sdk": "^1.29.0",
+        "ws": "^8.20.0",
+        "zod": "^4.4.3"
+    }
+}

packages/mcp/src/hub-bridge.js

@@ -0,0 +1,139 @@
+#!/usr/bin/env node
+import { readFileSync } from 'node:fs'
+import http from 'node:http'
+import { fileURLToPath } from 'node:url'
+import { WebSocketServer } from 'ws'
+
+const EXT_ID = 'akldabonmimlicnjlflnapfeklbfemhj'
+const STORE_URL = `https://chromewebstore.google.com/detail/page-agent-ext/${EXT_ID}`
+const LOOPBACK_HOST = 'localhost'
+
+const launcherTemplate = readFileSync(
+	fileURLToPath(new URL('./launcher.html', import.meta.url)),
+	'utf-8'
+)
+
+/**
+ * HTTP + WebSocket bridge to the hub.html extension tab.
+ * - HTTP serves the launcher page (triggers extension to open hub)
+ * - WS carries execute/stop commands and result/error responses
+ */
+export class HubBridge {
+	/** @type {number} */
+	port
+
+	/** @type {http.Server} */
+	#httpServer
+
+	/** @type {WebSocketServer} */
+	#wss
+
+	/** @type {import('ws').WebSocket | null} */
+	#hub = null
+
+	/** @type {{ resolve: (r: {success: boolean, data: string}) => void, reject: (e: Error) => void } | null} */
+	#pendingTask = null
+
+	/** @param {number} port */
+	constructor(port) {
+		this.port = port
+		this.#httpServer = http.createServer((_req, res) => {
+			const html = launcherTemplate
+				.replaceAll('__EXT_ID__', EXT_ID)
+				.replaceAll('__STORE_URL__', STORE_URL)
+				.replaceAll('__WS_PORT__', String(port))
+			res.writeHead(200, { 'Content-Type': 'text/html; charset=utf-8' })
+			res.end(html)
+		})
+		this.#wss = new WebSocketServer({ server: this.#httpServer })
+		this.#wss.on('connection', (ws) => this.#onConnection(ws))
+	}
+
+	/** @returns {Promise<void>} */
+	async start() {
+		return new Promise((resolve, reject) => {
+			this.#httpServer.on('error', (/** @type {NodeJS.ErrnoException} */ err) => {
+				if (err.code === 'EADDRINUSE') {
+					reject(
+						new Error(`Port ${this.port} is in use. Another Page Agent MCP server may be running.`)
+					)
+				} else {
+					reject(err)
+				}
+			})
+			this.#httpServer.listen(this.port, LOOPBACK_HOST, () => {
+				console.error(`[page-agent-mcp] HTTP + WS on http://${LOOPBACK_HOST}:${this.port}`)
+				resolve()
+			})
+		})
+	}
+
+	get connected() {
+		return this.#hub?.readyState === 1
+	}
+
+	get busy() {
+		return this.#pendingTask !== null
+	}
+
+	/**
+	 * @param {string} task
+	 * @param {Record<string, unknown>} [config]
+	 * @returns {Promise<{success: boolean, data: string}>}
+	 */
+	async executeTask(task, config) {
+		if (!this.connected) throw new Error('Hub is not connected. Is the extension running?')
+		if (this.#pendingTask) throw new Error('Agent is already running a task.')
+
+		return new Promise((resolve, reject) => {
+			this.#pendingTask = { resolve, reject }
+			this.#hub.send(JSON.stringify({ type: 'execute', task, config }))
+		})
+	}
+
+	stopTask() {
+		if (this.connected) {
+			this.#hub.send(JSON.stringify({ type: 'stop' }))
+		}
+	}
+
+	// TODO: Add version checking
+
+	/** @param {import('ws').WebSocket} ws */
+	#onConnection(ws) {
+		if (this.#hub && this.#hub.readyState === 1) {
+			ws.close(4000, 'Another hub is already connected')
+			return
+		}
+
+		this.#hub = ws
+		console.error('[page-agent-mcp] Hub connected')
+
+		ws.on('message', (/** @type {Buffer} */ rawData) => {
+			/** @type {{ type: string, success?: boolean, data?: string, message?: string }} */
+			let msg
+			try {
+				msg = JSON.parse(rawData.toString('utf-8'))
+			} catch {
+				return
+			}
+
+			if (msg.type === 'result') {
+				this.#pendingTask?.resolve({ success: msg.success ?? false, data: msg.data ?? '' })
+				this.#pendingTask = null
+			} else if (msg.type === 'error') {
+				this.#pendingTask?.reject(new Error(msg.message ?? 'Unknown error from hub'))
+				this.#pendingTask = null
+			}
+		})
+
+		ws.on('close', () => {
+			console.error('[page-agent-mcp] Hub disconnected')
+			if (this.#hub === ws) this.#hub = null
+			if (this.#pendingTask) {
+				this.#pendingTask.reject(new Error('Hub disconnected while task was running'))
+				this.#pendingTask = null
+			}
+		})
+	}
+}

packages/mcp/src/index.js

@@ -0,0 +1,100 @@
+#!/usr/bin/env node
+import { McpServer } from '@modelcontextprotocol/sdk/server/mcp.js'
+import { StdioServerTransport } from '@modelcontextprotocol/sdk/server/stdio.js'
+import { exec } from 'node:child_process'
+import { readFileSync } from 'node:fs'
+import { platform } from 'node:os'
+import * as z from 'zod/v4'
+
+import { HubBridge } from './hub-bridge.js'
+
+const env = process.env
+const port = parseInt(env.PORT || '38401')
+const { version } = JSON.parse(readFileSync(new URL('../package.json', import.meta.url), 'utf8'))
+
+/** @type {Record<string, string>} */
+const llmConfig = {}
+if (env.LLM_BASE_URL) llmConfig.baseURL = env.LLM_BASE_URL
+if (env.LLM_MODEL_NAME) llmConfig.model = env.LLM_MODEL_NAME
+if (env.LLM_API_KEY) llmConfig.apiKey = env.LLM_API_KEY
+
+// --- Hub bridge (HTTP + WebSocket) ---
+
+const hub = new HubBridge(port)
+await hub.start()
+
+// Open launcher in default browser
+const url = `http://localhost:${port}`
+const cmd = platform() === 'darwin' ? 'open' : platform() === 'win32' ? 'start ""' : 'xdg-open'
+exec(`${cmd} "${url}"`, (err) => {
+	if (err) console.error(`[page-agent-mcp] Could not open browser: ${err.message}`)
+})
+
+// --- MCP server (stdio) ---
+
+const mcpServer = new McpServer({ name: 'page-agent', version })
+
+mcpServer.registerTool(
+	'execute_task',
+	{
+		description: "Execute a task in user's browser.",
+		inputSchema: {
+			task: z
+				.string()
+				.describe(
+					'Task description. Give specific instructions for the task. Steps preferable. And the information you want to get after the task is done.'
+				),
+		},
+	},
+	async ({ task }) => {
+		try {
+			const config = Object.keys(llmConfig).length > 0 ? llmConfig : undefined
+			const result = await hub.executeTask(task, config)
+			return {
+				content: [
+					{
+						type: 'text',
+						text: result.success
+							? `Task completed.\n\n${result.data}`
+							: `Task failed.\n\n${result.data}`,
+					},
+				],
+			}
+		} catch (err) {
+			return {
+				content: [{ type: 'text', text: `Error: ${err.message}` }],
+				isError: true,
+			}
+		}
+	}
+)
+
+mcpServer.registerTool(
+	'get_status',
+	{
+		description: 'Check the current status of the Page Agent hub.',
+	},
+	async () => ({
+		content: [
+			{
+				type: 'text',
+				text: JSON.stringify({ connected: hub.connected, busy: hub.busy }, null, 2),
+			},
+		],
+	})
+)
+
+mcpServer.registerTool(
+	'stop_task',
+	{
+		description: 'Stop the currently running browser automation task.',
+	},
+	async () => {
+		hub.stopTask()
+		return { content: [{ type: 'text', text: 'Stop signal sent.' }] }
+	}
+)
+
+const transport = new StdioServerTransport()
+await mcpServer.connect(transport)
+console.error('[page-agent-mcp] MCP server ready (stdio)')

packages/mcp/src/launcher.html

@@ -0,0 +1,245 @@
+<!doctype html>
+<html>
+	<head>
+		<meta charset="UTF-8" />
+		<meta name="viewport" content="width=device-width, initial-scale=1.0" />
+		<link
+			rel="icon"
+			href="https://img.alicdn.com/imgextra/i1/O1CN01mRGret1QrKiu7CFJI_!!6000000002029-2-tps-64-64.png"
+		/>
+		<title>Page Agent MCP Launcher</title>
+		<style>
+			* {
+				margin: 0;
+				padding: 0;
+				box-sizing: border-box;
+			}
+			body {
+				font-family:
+					system-ui,
+					-apple-system,
+					sans-serif;
+				background: #09090b;
+				color: #e5e5e5;
+				display: flex;
+				align-items: center;
+				justify-content: center;
+				min-height: 100vh;
+			}
+			.card {
+				text-align: center;
+				max-width: 480px;
+				padding: 3rem 2rem;
+			}
+			.logo {
+				width: 72px;
+				height: 72px;
+				border-radius: 18px;
+				margin-bottom: 1rem;
+			}
+			.badge {
+				font-size: 0.6875rem;
+				font-weight: 500;
+				color: #52525b;
+				letter-spacing: 0.05em;
+				text-transform: uppercase;
+				margin-bottom: 1.5rem;
+			}
+			h1 {
+				font-size: 1.35rem;
+				font-weight: 600;
+				margin-bottom: 0.5rem;
+			}
+			.sub {
+				font-size: 0.875rem;
+				color: #a1a1aa;
+				line-height: 1.7;
+			}
+			.spinner {
+				width: 32px;
+				height: 32px;
+				border: 3px solid #27272a;
+				border-top-color: #fff;
+				border-radius: 50%;
+				animation: spin 0.8s linear infinite;
+				margin: 0 auto 1.5rem;
+			}
+			@keyframes spin {
+				to {
+					transform: rotate(360deg);
+				}
+			}
+			a {
+				color: #60a5fa;
+				text-decoration: none;
+			}
+			a:hover {
+				text-decoration: underline;
+			}
+
+			.install {
+				display: none;
+			}
+			.install.show {
+				display: block;
+			}
+
+			.tips {
+				margin-top: 1.75rem;
+				text-align: left;
+				background: #18181b;
+				border: 1px solid #27272a;
+				border-radius: 12px;
+				padding: 1.25rem 1.5rem;
+			}
+			.tips li {
+				font-size: 0.8125rem;
+				color: #a1a1aa;
+				line-height: 1.7;
+				margin-left: 1rem;
+			}
+			.tips li + li {
+				margin-top: 0.35rem;
+			}
+
+			.store-btn {
+				display: inline-flex;
+				align-items: center;
+				gap: 0.625rem;
+				margin-top: 1.5rem;
+				padding: 0.625rem 1.5rem;
+				background: #2563eb;
+				color: #fff;
+				border-radius: 10px;
+				font-size: 0.875rem;
+				font-weight: 500;
+				transition: background 0.15s;
+			}
+			.store-btn:hover {
+				background: #1d4ed8;
+				text-decoration: none;
+			}
+			.store-btn img {
+				width: 20px;
+				height: 20px;
+			}
+
+			.links {
+				margin-top: 1.75rem;
+				display: flex;
+				justify-content: center;
+				gap: 1.5rem;
+				font-size: 0.8125rem;
+			}
+			.links a {
+				color: #71717a;
+				transition: color 0.15s;
+			}
+			.links a:hover {
+				color: #a1a1aa;
+				text-decoration: none;
+			}
+		</style>
+	</head>
+	<body>
+		<div class="card">
+			<img
+				class="logo"
+				src="https://img.alicdn.com/imgextra/i3/O1CN01JPT4Fj1FJTfmHfNxO_!!6000000000466-49-tps-512-512.webp"
+				alt="Page Agent"
+			/>
+			<div class="badge">Page Agent MCP Launcher</div>
+
+			<div id="connecting">
+				<div class="spinner"></div>
+				<h1 data-i18n="connecting_title">Connecting to Page Agent</h1>
+				<p class="sub" data-i18n="connecting_sub">Opening the hub in your browser…</p>
+			</div>
+
+			<div id="install" class="install">
+				<h1 data-i18n="install_title">Extension Required</h1>
+				<p class="sub" data-i18n="install_sub">
+					Page Agent requires the latest browser extension to work.
+				</p>
+
+				<a class="store-btn" href="__STORE_URL__" target="_blank">
+					<img
+						src="https://img.alicdn.com/imgextra/i3/O1CN01JpW0Vo1sR3FpiZKFM_!!6000000005762-55-tps-192-192.svg"
+						alt=""
+					/>
+					<span data-i18n="install_btn">Install from Chrome Web Store</span>
+				</a>
+
+				<ul class="tips">
+					<li data-i18n="tip_outdated">
+						If the extension is outdated, please update it to the latest version.
+					</li>
+					<li data-i18n="tip_other_browser">
+						If the extension is not installed in this browser, open this page from the browser that
+						has it installed.
+					</li>
+					<li data-i18n="tip_refresh">Refresh this page after installing or updating.</li>
+				</ul>
+			</div>
+
+			<div class="links">
+				<a
+					href="https://alibaba.github.io/page-agent/docs/introduction/overview"
+					target="_blank"
+					data-i18n="link_docs"
+					>Docs</a
+				>
+				<a
+					href="https://github.com/alibaba/page-agent/issues"
+					target="_blank"
+					data-i18n="link_issues"
+					>Report an Issue</a
+				>
+			</div>
+		</div>
+
+		<script>
+			{
+				const EXT_ID = '__EXT_ID__'
+				const wsPort = __WS_PORT__
+
+				const zh = {
+					connecting_title: '正在连接 Page Agent',
+					connecting_sub: '正在浏览器中打开 Hub…',
+					install_title: '需要安装浏览器插件',
+					install_sub: 'Page Agent 需要安装最新版浏览器插件才能运行。',
+					install_btn: '从 Chrome 应用商店安装',
+					tip_outdated: '如果插件版本过旧，请更新到最新版本。',
+					tip_other_browser: '如果该浏览器中未安装插件，请从装有插件的浏览器打开此页面。',
+					tip_refresh: '安装或更新后，请刷新此页面。',
+					link_docs: '文档',
+					link_issues: '问题反馈',
+				}
+
+				if (/^zh\b/i.test(navigator.language)) {
+					document.querySelectorAll('[data-i18n]').forEach((el) => {
+						const key = el.getAttribute('data-i18n')
+						if (zh[key]) el.textContent = zh[key]
+					})
+				}
+
+				const showInstall = () => {
+					document.getElementById('connecting').style.display = 'none'
+					document.getElementById('install').classList.add('show')
+				}
+
+				try {
+					if (!globalThis.chrome?.runtime?.sendMessage) {
+						showInstall()
+					} else {
+						chrome.runtime.sendMessage(EXT_ID, { type: 'OPEN_HUB', wsPort }, (response) => {
+							if (chrome.runtime.lastError || !response?.ok) showInstall()
+						})
+					}
+				} catch {
+					showInstall()
+				}
+			}
+		</script>
+	</body>
+</html>

packages/page-agent/package.json

@@ -1,16 +1,26 @@
 {
     "name": "page-agent",
     "private": false,
-    "version": "1.3.0",
+    "version": "1.8.2",
     "type": "module",
-    "main": "./dist/esm/page-agent.js",
-    "module": "./dist/esm/page-agent.js",
-    "types": "./dist/esm/PageAgent.d.ts",
+    "main": "./src/PageAgent.ts",
+    "types": "./src/PageAgent.ts",
     "exports": {
         ".": {
-            "types": "./dist/esm/PageAgent.d.ts",
-            "import": "./dist/esm/page-agent.js",
-            "default": "./dist/esm/page-agent.js"
+            "types": "./src/PageAgent.ts",
+            "default": "./src/PageAgent.ts"
+        }
+    },
+    "publishConfig": {
+        "main": "./dist/esm/page-agent.js",
+        "module": "./dist/esm/page-agent.js",
+        "types": "./dist/esm/PageAgent.d.ts",
+        "exports": {
+            ".": {
+                "types": "./dist/esm/PageAgent.d.ts",
+                "import": "./dist/esm/page-agent.js",
+                "default": "./dist/esm/page-agent.js"
+            }
         }
     },
     "files": [
@@ -40,15 +50,20 @@
         "build": "vite build && npm run build:demo",
         "build:demo": "vite build --config vite.iife.config.js",
         "dev:demo": "concurrently \"vite build --config vite.iife.config.js --watch\" \"npx serve dist/iife -p 5174\"",
-        "prepublishOnly": "node -e \"const fs=require('fs');['README.md','LICENSE'].forEach(f=>fs.copyFileSync('../../'+f,f))\"",
-        "postpublish": "node -e \"['README.md','LICENSE'].forEach(f=>{try{require('fs').unlinkSync(f)}catch{}})\""
+        "prepublishOnly": "node ../../scripts/pre-publish.js",
+        "postpublish": "node ../../scripts/post-publish.js"
     },
     "dependencies": {
-        "@page-agent/core": "1.3.0",
-        "@page-agent/llms": "1.3.0",
-        "@page-agent/page-controller": "1.3.0",
-        "@page-agent/ui": "1.3.0",
-        "chalk": "^5.6.2",
-        "zod": "^4.3.5"
+        "@page-agent/core": "1.8.2",
+        "@page-agent/llms": "1.8.2",
+        "@page-agent/page-controller": "1.8.2",
+        "@page-agent/ui": "1.8.2",
+        "chalk": "^5.6.2"
+    },
+    "peerDependencies": {
+        "zod": "^3.25.0 || ^4.0.0"
+    },
+    "devDependencies": {
+        "zod": "^4.4.3"
     }
 }

packages/page-agent/src/PageAgent.ts

@@ -2,12 +2,13 @@
  * Copyright (C) 2025 Alibaba Group Holding Limited
  * All rights reserved.
  */
-import { type PageAgentConfig, PageAgentCore, type PageAgentTool, tool } from '@page-agent/core'
-import { PageController } from '@page-agent/page-controller'
-import { Panel } from '@page-agent/ui'
+import { type AgentConfig, PageAgentCore } from '@page-agent/core'
+import { PageController, type PageControllerConfig } from '@page-agent/page-controller'
+import { Panel, type PanelConfig } from '@page-agent/ui'
 
-export type { PageAgentConfig, PageAgentTool }
-export { tool }
+export * from '@page-agent/core'
+
+export type PageAgentConfig = AgentConfig & PageControllerConfig & Omit<PanelConfig, 'language'>
 
 export class PageAgent extends PageAgentCore {
 	panel: Panel
@@ -22,6 +23,7 @@ export class PageAgent extends PageAgentCore {
 
 		this.panel = new Panel(this, {
 			language: config.language,
+			promptForNextTask: config.promptForNextTask,
 		})
 	}
 }