Rebuilds branch from upstream/staged (was previously merged from
upstream/main, which brought in materialized plugin files that
fail Check Plugin Structure on PRs targeting staged).
Changes vs. staged:
- Update skills/quality-playbook/ to v1.5.6 (31 bundled assets:
SKILL.md + LICENSE.txt + 16 references/ + 9 phase_prompts/ +
3 agents/ + bin/citation_verifier.py + quality_gate.py).
- Add agents/quality-playbook.agent.md (top-level orchestrator).
name: quality-playbook (validator-compliant).
- Update docs/README.skills.md quality-playbook row description
+ bundled-assets list to v1.5.6.
- Fix 'unparseable' → 'unparsable' in quality_gate.py (5 instances;
codespell preference, both spellings valid).
Closes the v1.4.0 → v1.5.6 update in a single clean commit on top of
upstream/staged. The preserved backup branch backup-bedbe84-pre-rebuild
(SHA bedbe848fa3c0f0eda8e653c42b599a17dd2e354) holds the prior history for reference.
Add Step 5a (state machine completeness analysis) and expand Step 6
with missing safeguard detection patterns. These catch two categories
of bugs that defensive pattern analysis alone misses: unhandled states
in lifecycle/status machines, and operations that commit users to
expensive work without adequate preview or termination conditions.
Andrew Stellman