Phase 1: Probed PermissionRequest hook, confirmed firing + payload shape.
Documented in docs/research/claude-code-mechanics.md.
Phase 2: Built trailboss-emit.sh that forwards hook payloads to collector
and injects $TMUX_PANE. Wired all hooks in .claude/settings.json.
Verified: stub collector logs POSTs with session_id, cwd, and pane_id.
Demonstrated bare curl drops $TMUX_PANE, proving wrapper required.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
c89b315aa7