Completes the remote-drive triad for a broker-owned sandbox the operator can't
exec into directly: keys (in) → watch (wait) → screen (out).
- _sbx:data PTY-relay frames are absorbed into a capped rolling terminal buffer
(not surfaced as chat); `screen` returns it ansi-stripped (or raw). sandbox.
strip_ansi handles CSI/OSC/CR noise so output greps cleanly.
- `watch` is a formal stop-condition engine: blocks until a regex matches in the
screen buffer or chat events, or an idle-quiescence window, or a hard timeout,
then reports which fired — the autonomy loop's principled wait.
- Skill doctrine updated with the type→wait→read relay loop.
28 offline tests green.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Reusable SKILL.md any Claude Code session can invoke to drive a hack-house
room via the hh-bridge CLI: join, the read --wait → decide → say operator loop,
the permission-gated sandbox drive (exec/write/get + shared-PTY keystrokes),
and an embedded keystroke cheat-sheet centred on the stop-vocabulary
(ctrl-c/ctrl-d/ctrl-z/ctrl-\, esc, pager q, vim :q) so every session knows how
to end a stuck program up-front.
/loop autonomy is folded in as the "indefinite watch" pattern with an explicit
stop-condition vocabulary — the long-poll primitive + persistent daemon from
Phase 1 already support it, so no extra machinery. Symlinked into
~/.claude/skills/ for global reuse.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
leetcrypt