Conciseness

The body is dense with operational content — a routing table, three placeholder-key listings, and a complete executable flow — and assumes Claude's competence (no explanation of what docx/xlsx/pptx are). Two sections could be trimmed: 'Why this exists' (historical justification the agent doesn't need at execution time) and the empty-office-stub guard paragraph in 'Verifying the output'. That matches anchor 4 ('minor instances of over-explanation that could be trimmed') rather than anchor 5's 'every token earns its place'.

Actionability

'The flow' is copy-paste ready: concrete template path, a full heredoc JSON data file, the exact `officecli merge "$TEMPLATE" "$OUT" --data /tmp/data.json` invocation, a view command, and the attach call. Every template's placeholder keys are enumerated, and edge cases are handled concretely ('for additional rows, use `officecli add` after the merge'). Covers all three deliverable shapes; anchor 4's 'minor gaps' don't apply.

Workflow Clarity

A clear 5-step sequence (pick template → write data → merge → view → attach) with an explicit validation checkpoint: `officecli view "$OUT" text | grep -E '\{\{[a-z_]+\}\}'` plus failure interpretation ('any output = caller forgot to supply that key'), which makes the fix-and-re-merge recovery path evident since re-running the same merge command is idempotent. The operation is file creation, not destructive/batch, so no validation cap applies; matches anchor 5's explicit validation with error-recovery feedback.

Progressive Disclosure

No bundle files exist (no references/, scripts/, or assets/ directories), so all guidance is appropriately inline for a skill of this size, with well-labeled sections per template. The 50-line simple-skill exception for a score of 5 doesn't apply at ~120 lines, and external pointers (the /opt template path, `build_templates.py` in the commonly repo) are one level deep but the build/regeneration pointer is only relevant to maintainers rather than skill consumers — anchor 4 ('good structure; minor organization gaps') fits best.

Specificity

Concrete actions and formats throughout: 'producing a polished, Commonly-branded deliverable (.docx brief / memo, .xlsx data matrix, .pptx deck)' and 'Routes to `officecli merge` with one of three pre-built starter templates' — the mechanism (one merge call vs. 30 `officecli set` commands) is explicit and comprehensive for the skill's niche. Anchor 4 ('minor gaps in coverage') is ruled out because every deliverable shape and the routing action are enumerated.

Completeness

Explicitly answers both questions: 'Use this skill when producing a polished, Commonly-branded deliverable... and you do not have specific brand guidance from the user' (when, with concrete triggers) and 'Routes to `officecli merge` with one of three pre-built starter templates' (what), plus an explicit negative scope ('DO NOT use for fundraising decks...'). Matches the anchor-5 example structure of what + 'Use when...' with concrete trigger phrases; score 4 is ruled out because the 'when' clause is already maximally explicit.

Trigger Term Quality

Natural trigger phrases are listed verbatim ('write me a brief', 'one-pager', 'memo', 'data sheet', 'status matrix', 'short deck', 'summary deck', 'closing slide', 'final deliverable') plus file extensions (.docx/.xlsx/.pptx) and synonyms. Anchor 4 ('a few natural terms missing') would apply only if common variations were absent; 'executive summary'/'status update' appear in the body but their omission from the description is marginal.

Distinctiveness Conflict Risk

Clear niche (default Commonly-branded everyday deliverables) and an explicit DO-NOT clause routing away from `officecli-pitch-deck`, `officecli-academic-paper`, and `officecli-financial-model`. However, the base officecli-{docx,xlsx,pptx} sub-skills — the closest competitors for generic 'write me a memo/make me a docx' requests — are not disambiguated in the description itself, leaving minor overlap risk; that fits anchor 4 better than anchor 5's 'minimal conflict risk'.