docs: remove the "We're Hiring" section from the README

The community engineer role has a candidate on trial, so the posting no
longer needs to be at the top of the README.

skills/using-superpowers/references/codex-tools.md

@@ -7,34 +7,7 @@ Add to your Codex config (`~/.codex/config.toml`):
 multi_agent = true
 ```
 
-This enables the multi-agent tools that skills like
+This enables `spawn_agent`, `wait_agent`, and `close_agent` for skills like `dispatching-parallel-agents` and `subagent-driven-development`. When using subagent-driven-development, close reviewer subagents when their review returns. Keep each implementer subagent open until its task's review passes — the fix loop resumes the implementer — then close it. If your harness cannot send another message to a spawned agent, dispatch each fix round as a fresh implementer carrying the brief, the report file, and the findings.
-`dispatching-parallel-agents` and `subagent-driven-development` use.
-Which tools you get depends on the multi-agent version your model
-preset selects (current presets run V2; older ones run V1). Trust your
-actual tool list over any table — including this one — when they
-disagree.
-
-- **Spawning:** give children a clean context with
-  `spawn_agent {fork_turns: "none"}`; the default `"all"` copies your
-  entire transcript into the child. On Codex 0.145+, role files under
-  `~/.codex/agents/` attach to isolated forks via `agent_type`.
-  Full-history forks accept `model` and `reasoning_effort` overrides
-  (only `agent_type` is refused there) — isolated forks are the SDD
-  default for context hygiene, not because overrides require them.
-- **Fix rounds:** resume the implementer with `followup_task` — it
-  delivers your message, triggers a turn, and transparently reloads a
-  child the harness evicted. Never dispatch a fresh implementer on the
-  theory that a spawned agent cannot be messaged again; on V2 it
-  always can.
-- **Lifecycle:** V2 has no `close_agent`. Finished children are
-  evicted automatically when slots are needed; leaving them unclosed
-  costs nothing. Only V1 sessions have `close_agent` — there, close
-  reviewers when their review returns, and close each implementer
-  after its task's review passes.
-- **Model names:** never copy a model name from a skill, table, or old
-  session into `spawn_agent` without checking it against your current
-  spawn allowlist — V2 accepts only V2-capable presets and hard-errors
-  on the rest.
 
 ## Environment Detection