strix/strix/run_config_factory.py

"""``make_run_config`` — assemble a Strix-flavored ``RunConfig`` for ``Runner.run``.

Every scan goes through here so defaults apply uniformly. Per-call
overrides land via ``model_settings_override``.
"""

from __future__ import annotations

from typing import TYPE_CHECKING, Any, Literal

from agents import RunConfig
from agents.model_settings import ModelSettings
from agents.retry import (
    ModelRetryBackoffSettings,
    ModelRetrySettings,
    retry_policies,
)
from agents.sandbox import SandboxRunConfig
from openai.types.shared import Reasoning

from strix.llm.multi_provider_setup import build_multi_provider
from strix.orchestration.filter import inject_messages_filter


if TYPE_CHECKING:
    from agents.sandbox.session.base_sandbox_session import BaseSandboxSession

    from strix.orchestration.bus import AgentMessageBus


#: Default ``max_turns`` callers should pass to ``Runner.run``.
STRIX_DEFAULT_MAX_TURNS = 300

# Retry: 5 attempts with ``min(90, 2*2^n)`` backoff. 4xx auth/validation
# errors are excluded from the retryable status list — they can't be
# fixed by retrying and should fail fast.
_DEFAULT_RETRY = ModelRetrySettings(
    max_retries=5,
    backoff=ModelRetryBackoffSettings(
        initial_delay=2.0,
        max_delay=90.0,
        multiplier=2.0,
        jitter=False,
    ),
    policy=retry_policies.any(
        retry_policies.provider_suggested(),
        retry_policies.network_error(),
        retry_policies.http_status((429, 500, 502, 503, 504)),
    ),
)


def make_run_config(
    *,
    sandbox_session: BaseSandboxSession | None,
    model: str = "anthropic/claude-sonnet-4-6",
    reasoning_effort: Literal["low", "medium", "high"] | None = None,
    model_settings_override: ModelSettings | None = None,
    sandbox_client: Any | None = None,
) -> RunConfig:
    """Build a ``RunConfig`` with Strix defaults.

    Note: ``max_turns`` is not a ``RunConfig`` field — pass it directly
    to ``Runner.run``. ``STRIX_DEFAULT_MAX_TURNS`` is the budget Strix
    uses.

    Args:
        sandbox_session: Live sandbox session shared by every agent in
            this scan (one container per scan; see
            :mod:`strix.runtime.session_manager`). ``None`` is allowed
            for unit tests and dry runs.
        model: Model alias passed to ``MultiProvider``. Defaults to the
            production Anthropic alias.
        reasoning_effort: ``"low" | "medium" | "high"``; routes to
            ``ModelSettings.reasoning``.
        model_settings_override: Optional per-run ``ModelSettings``
            merged over factory defaults.
        sandbox_client: Optional pre-built sandbox client (Strix Docker
            subclass). The SDK instantiates its built-in if a session is
            supplied without a client.
    """
    base_settings = ModelSettings(
        parallel_tool_calls=False,
        tool_choice="required",
        retry=_DEFAULT_RETRY,
    )
    if reasoning_effort is not None:
        base_settings = base_settings.resolve(
            ModelSettings(reasoning=Reasoning(effort=reasoning_effort)),
        )
    if model_settings_override is not None:
        base_settings = base_settings.resolve(model_settings_override)

    sandbox_config = (
        SandboxRunConfig(client=sandbox_client, session=sandbox_session)
        if sandbox_session is not None
        else None
    )

    return RunConfig(
        model=model,
        model_provider=build_multi_provider(),
        model_settings=base_settings,
        sandbox=sandbox_config,
        call_model_input_filter=inject_messages_filter,
        tracing_disabled=False,
        trace_include_sensitive_data=False,
    )


def make_agent_context(
    *,
    bus: AgentMessageBus,
    sandbox_session: BaseSandboxSession | None,
    agent_id: str,
    parent_id: str | None,
    tracer: Any | None,
    model: str = "anthropic/claude-sonnet-4-6",
    model_settings: ModelSettings | None = None,
    max_turns: int = 300,
    is_whitebox: bool = False,
    diff_scope: dict[str, Any] | None = None,
    run_id: str | None = None,
    sandbox_client: Any | None = None,
    agent_factory: Any | None = None,
    caido_client: Any | None = None,
) -> dict[str, Any]:
    """Build the per-agent ``context`` dict passed to ``Runner.run(context=...)``.

    The canonical place where bus, sandbox handles, identity, tracer
    reference, and per-agent toggles live. Tools, hooks, and
    ``inject_messages_filter`` reach in via ``ctx.context.get(...)``.

    ``agent_factory`` is a callable ``(name, skills) -> agents.Agent`` —
    the ``create_agent`` graph tool uses it to spin up children that
    inherit the same wiring. ``sandbox_client`` is the host-side Docker
    subclass, reused across child runs.
    """
    return {
        "bus": bus,
        "sandbox_session": sandbox_session,
        "sandbox_client": sandbox_client,
        "caido_client": caido_client,
        "agent_id": agent_id,
        "parent_id": parent_id,
        "tracer": tracer,
        "model": model,
        "model_settings": model_settings,
        "max_turns": max_turns,
        "turn_count": 0,
        "agent_finish_called": False,
        "is_whitebox": is_whitebox,
        "diff_scope": diff_scope,
        "run_id": run_id,
        "agent_factory": agent_factory,
    }