Conciseness

The body runs ~790 lines / 49 KB with several padded sections: the archive rationale is restated across Mode 1 and Mode 2, Phase 4 step 1 carries long meta-commentary ("What this list can and cannot do", "Those two are a floor"), and the renumbering section spends three paragraphs justifying why two scopings fail. It never explains concepts Claude already knows — nearly everything is non-obvious, measured operational detail — so it is above anchor 1, but it is not 'mostly efficient' either; a careful edit could cut 30–40% (persuasive framing, repeated statements like the self-certifying-check argument appearing in both Phase 3 and Phase 4) without losing actionable content.

Actionability

Guidance is copy-paste executable throughout: exact `rg -U -F ... --no-ignore --hidden -g '!.git'` commands, the `git show HEAD~1:<path>` recovery forms with the subdirectory variant, lychee invocations with the `--root-dir` caveat, a working python3 one-liner, and decision tables (dispositions, mode selection, preservation-check methods). Placeholders like `"<the exact fact string>"` are appropriate templates, and common cases (multi-line facts, count-word patterns in English and Chinese) each get a specific command.

Workflow Clarity

Both modes are strictly sequenced with explicit checkpoints and feedback loops: write expected counts before searching and compare as set equality, calibrate a zero against a known-present string, emit the preservation list before the rewrite, run the preservation check as a gate, and get agreement before deletion (with an explicit stop-and-report rule when running unattended). This is a destructive/batch workflow and validation is pervasive, so the missing-validation cap does not apply.

Progressive Disclosure

Both referenced files exist and are one level deep (`references/value_analysis_template.md` at line 353, `references/delivery-entry-replay.md` at lines 158 and 610), but they cover only 187 lines against a ~790-line body: the entire Verifying/ripgrep/link-checker apparatus and the Mode 2 phase detail are inlined material that belongs in reference files. There is also a formatting defect — the preservation-check table is interrupted by multi-paragraph prose (lines 705–712), splitting the Condense and Delete rows (713–714) from their header so they render as loose text. Good headers keep this above anchor 2, but 'content that should be separate is inline' fits anchor 3 better than 4.

Specificity

"Consolidates redundant documentation while preserving all valuable content" plus "Finds stale copies of a fact changed in only one place, values that should never have been persisted (counts, totals, 'N items', restated summaries), rival definitions that drift apart, and orphaned cross-references" — multiple concrete actions with comprehensive coverage of what the skill detects and does across both modes. Not 4: there are no minor gaps; the specific finding types are enumerated outright.

Completeness

Both halves are explicit: the 'what' (consolidate, preserve valuable content, keep a doc set truthful, the four enumerated finding types) and the 'when' (two labeled mode trigger lists, including the edge case "Use it even when the user mentions only the change and never the docs"). This matches the anchor-5 pattern of concrete trigger phrases attached to a clear capability statement, not the anchor-4 'when could be more specific'.

Trigger Term Quality

Extensive natural phrasings users would actually say: "clean up docs", "documentation bloat", "too many doc files", "merge redundant docs", "merge these docs", "which docs are now wrong", "check docs for inconsistencies", plus non-English variants ("过时的命令/路径", "文档太多/太乱") and situational triggers ("multiple files covering the same topic", "documentation exceeding 500 lines"). Coverage including synonyms well exceeds the anchor-4 example.

Distinctiveness Conflict Risk

The niche (documentation truthfulness and consolidation) is clear and the trigger vocabulary is doc-specific, but Mode 1 claims "Use it even when the user mentions only the change and never the docs" — code, scripts, config, env vars, ports, paths, deployment, auth, tests — which is a broad claim overlapping any change-handling skill. Mostly distinct with minor overlap risk fits anchor 4; not 5 because of that catch-any-change trigger, not 3 because nothing here is generic enough to grab unrelated skills on its own.