dsh-bash grows the per-call policy carrier: BashExecRequest.sandboxMode (request-optional, spec required-but-nullable — the owner pattern; resolve() is the one explicit defaulting step) and the BashExecutor.sandboxMode capability fact (undefined in the base class — composition truth the tool layer can read). dsh-bash-local carries the field verbatim and confines nothing. dsh-bash-sandbox extends LocalBashExecutor and hands ctx.sandbox the exact argv it is about to spawn. A denial is a RESULT FACT (the command RAN; result.sandbox.denied is orthogonal to exitCode/signal), classified conservatively against the wrap own dialect; a RUNNER failure outranks denial — foreground re-throws the structured SANDBOX_UNAVAILABLE, a settled background task stamps sandbox.runnerFailed — so a broken sandbox never reads as a failing command and the command never runs unconfined. dsh-tool-bash renders the markers and teaches the model not to retry around a policy denial; escalation and per-session switching are staged follow-ups.
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, detached-run quiescence |
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.