Conciseness

The body is mostly efficient but carries several unnecessary or padded passages: the unexplained framework string 'A1 PANEL + WAVE EXECUTION + S7 DETERMINISTIC TOOL BRIDGE + A8 ALIGNMENT LOOP + A9 SUPERVISED EXECUTION', the cryptic 'that's R3 EXTRACT in reverse', a trigger-boundary statement repeated three times (intro, sibling contract, boundary section), and a non-runtime Provenance section. These are multiple instances rather than the 'minor instances' of the 4 anchor, so 3 fits best.

Actionability

Concrete, executable guidance is present throughout: 'uv run apm <verb> --help' for CLI, 'grep -n src/apm_cli/' for symbols, 'python -c "import ..."' for module shape, 'scripts/scan-cross-corpus-drift.sh' with 'Run --help for pattern list', plus a real bundled subagent prompt template. It falls short of the 5 anchor because the wave-dispatch mechanics and an example scope partition are only pointed at via the template asset rather than shown.

Workflow Clarity

The 8-step process is clearly sequenced with explicit validation checkpoints and feedback loops at every stage: 'Validate every return against the schema; reject malformed JSON', a deterministic cross-corpus post-pass, an alignment loop with 'bounded: max 2 redrafts per wave' plus maintainer escalation, and a probe step that asks the maintainer when a required target is missing. As a batch/git-writing skill it does include validation, so the <=3 cap does not apply; the 5 anchor's 'explicit validation steps; feedback loops for error recovery' is matched.

Progressive Disclosure

Good structure with a dedicated 'Bundled assets' section and one-level-deep references that all resolve (assets/subagent-prompt-template.md, assets/panelist-return-schema.json, scripts/scan-cross-corpus-drift.sh -- verified present). However the 'Evals' section points at evals/content-evals.json, evals/trigger-evals.json, and evals/README.md, and step 8 references ../pr-description-skill/SKILL.md -- none of which exist in the bundle, leaving dangling references that keep it below the 5 anchor.

Specificity

The description lists multiple concrete actions -- 'run a holistic regrounding pass on the entire microsoft/apm documentation corpus against current source code, page-by-page, and emit surgical fixes for stale claims' plus 'Wave-batched and S7-verified' -- with comprehensive coverage of the skill's capability. It matches the 5 anchor ('multiple specific concrete actions; comprehensive coverage') rather than 4 because there are no material gaps in what the skill does.

Completeness

Both 'what' (corpus-wide regrounding pass against source code with surgical fixes) and 'when' ('Activate when the maintainer wants a WHOLE-CORPUS audit... typical triggers include...') are explicit and paired with concrete trigger phrases, matching the 5 anchor exactly.

Trigger Term Quality

Quotes natural user phrasings directly: 'audit the docs', 'reground the corpus', 'check every page against code', 'pre-release docs sweep', 'the docs have drifted everywhere', and 'we just reshaped the TOC, find dead links'. This is comprehensive synonym coverage matching the 5 anchor; nothing common is missing.

Distinctiveness Conflict Risk

The description explicitly fences off its sibling -- 'This is a SIBLING to docs-sync, not a replacement: docs-sync is per-PR (triggered by a diff); this skill is per-corpus (triggered by a maintainer ask)' -- and lists non-goals ('Does NOT auto-merge, does NOT push...'). Clear niche with distinct triggers and minimal conflict risk, matching the 5 anchor rather than 4.