a72ebda723
The bridge tests that drive observe-only emit listeners (session-start, subagent/start, subagent/end) fire their hook on a detached `.then` the test cannot await. They waited a fixed 50-80ms, which flaked under the full test:coverage run's heavy parallel load (transform ~400s): the sleep expired before the async hook completed, so the injected context / marker file / warn call had not landed. Replace each fixed sleep with a `waitFor(predicate)` poll that retries until the observable effect appears (5s deadline) — "async state is not synchronous state": wait for the signal that actually fires, not a guessed duration. No behavior change; the same assertions, made robust to scheduling.
hooks/ — hook bridges + shared protocol
The hooks subsystem lets users extend the agent at lifecycle points the way Claude Code and Codex do — by pointing a bridge plugin at an existing hooks.json (or settings) so those external shell hooks run faithfully. The canonical extension surface itself is the harness's typed interception seams (the interception-seams RFC); a "native hook" is just an ordinary cordis plugin on those seams. These packages are the bridges that translate the external shell-hook protocol onto that same surface, plus the shared wire-protocol library they build on.
| Package | Role | Shape |
|---|---|---|
hook-protocol/ |
Shared wire-protocol core: matcher primitive, exit-code/stdout codec, runHook (via ctx.bash), most-restrictive merge, hook/* session events |
library (no plugin) |
hooks-claude/ |
Bridge for a Claude Code hooks.json / settings |
plugin |
hooks-codex/ |
Bridge for a Codex hooks.json |
plugin |
Codex deliberately reimplements a subset of the Claude Code protocol (same hooks.json shape, 5 events vs CC's many, command-only, regex-only matcher, no env/substitution), so hook-protocol owns the genuinely-identical primitives and each bridge owns only what differs (its per-event stdin payload, env, and the mapping of a hook's neutral outcome onto the harness's typed Decisions). See hook-protocol/README.md.