Agent Skills: Signoff Skill — the sign-off / encerramento verb

Signoff Skill — the sign-off / encerramento verb

Purpose

signoff is the operator's "I'm done — close this out properly and leave a trail" gesture. Where postflight is the close-out machinery, signoff is the operator-facing verb that runs it with the continuation BROADCAST default-ON — so the pending work is left discoverable for whatever mind arrives next (a fresh amnesic agent, another agent, or the operator days later).

It composes, it does not reimplement (Strata / Gordian — no new machinery). Everything is delegated:

signoff [--converge] [--broadcast=<conservative|all> | --no-broadcast] [--spawn | --no-spawn] [--dry-run]
  ├─ (optional, --converge) → `quiesce`   # drive the open PR toward green first
  └─ `postflight` full --broadcast[=<scope>] [--spawn|--no-spawn] [--dry-run]
        P1 SWEEP → P2 DEBRIEF (+ the complete 10-item hunt) → P2.5 TICKET-SYNC
        → P3 HANDOFF (seed) → P3.5 SPAWN (default-ON) → P3.6 BROADCAST (default-ON HERE)

What differs from bare postflight (its entire net behavior)

| Aspect | postflight | signoff | |---|---|---| | BROADCAST | opt-in (--broadcast) | default-ON (conservative) — the point of a sign-off | | framing | phases | explicit OODA (Observe = recon + 10-item hunt · Orient = root-cause + anti-theater · Decide = Taxis · Act = execute + broadcast + git) — table in commands/signoff.md | | --converge | — | optionally drive the PR green via quiesce first |

Everything else — the sweep, debrief, hunt, ticket-sync, seed, spawn, and every guardrail — is postflight's (and quiesce's). signoff owns only the broadcast-default-ON policy + the OODA framing; it holds no machinery of its own.

When to Use

At the end of a session/thread, especially before /compact or /clear, or when handing off — whenever you want the close-out and a discoverable continuation trail (the default).

Guardrails (all inherited — signoff adds none of its own)

Safe-or-DEFER close-out (P1: dirty tree / conflict / held index.lock / untracked-you-didn't-create → DEFER), structured-back-pointer-not-TODO broadcast (P3.6 / ADR-010: byte-idempotent · fail-closed · metadata-only · decision-records refused · MAOS_BROADCAST=0 kill-switch · NOOP when nothing pending), high-blast spawn (P3.5: POSTFLIGHT_SPAWN=0 · depth-cap · --no-spawn), and full git under pr-review-protocol + auto-merge-standing-authorization (HITL only for genuine HUMAN_DOMAIN residue). Full flag/example reference: commands/signoff.md.

Anti-patterns (do NOT)

1. ❌ Reimplement sweep/debrief/seed/broadcast inside signoff — it COMPOSES quiesce + postflight.
2. ❌ Sign off over an un-swept state, OR force a spawn/broadcast the operator opted out of — the P3 DoR gates the seed/marker (so they never misreport reality); honor --no-spawn / --no-broadcast / the kill-switches.

Related Multi-Agent OS Artifacts

• skills/postflight/SKILL.md — the close-out machinery signoff wraps (P1–P3.6).
• skills/postflight/references/{continuation-broadcast-protocol.md,close-out-hunt-checklist.md}
  • bin/continuation-broadcast.sh + docs/adrs/ADR-010-continuation-broadcast.md — the P3.6 marker.
• skills/quiesce/SKILL.md — the drive-to-green signoff --converge composes.
• commands/signoff.md — the /maos:signoff entry point (full flags + examples + the OODA table).
• skills/preflight/SKILL.md — start-of-session counterpart; loop preflight → work → signoff → (spawn) → preflight ….

License

MIT (matches the multi-agent-os repo LICENSE).