Conciseness

The body contains no explanations of concepts Claude already knows — every line is task-specific policy, decision rules, or file pointers — and copy-paste example phrases are given in both languages. It is not 5 because several rules duplicate guidance in the communication profile that step 1 already requires reading (e.g., claim preservation appears in both 'Preserve the author's claims, qualifications...' and the profile's 'Preserve facts, attribution, commitments...'), and a few dense negative-rule bullets could be merged or trimmed.

Actionability

For an instruction-only skill the guidance is mostly executable: exact file paths to read, an activation rule ('An explicit request... activates this skill... A recommendation alone does not'), concrete rerouting ('If the user asks for minimal cleanup, use `avoid-ai-writing`'), a private-claims checklist procedure, and ready-to-use example recommendation sentences in Spanish and English. It is not 5 because the core rewriting mechanics are delegated to 'Apply its pattern review and voice matching' — instructions stored in an upstream file the reader must load — and some rules ('Infer only what the text and conversation support') remain judgment-level rather than concrete steps.

Workflow Clarity

The sequence is clear and includes an explicit validation checkpoint with a fix-before-deliver loop: 'Before drafting, make a private checklist of the source's individual claims. After drafting, account for each... Restore any missing claim before delivery', plus 'Do not invent verification results'. It is not 5 because the workflow is assembled from three separate sections (Read and apply, Scope and output, Recommend/ask/proceed) rather than presented as one ordered process, leaving the reader to reconstruct the order of activation check, reference loading, checklist, drafting, verification, and delivery.

Progressive Disclosure

The body is a genuine overview wrapper with well-signaled, one-level-deep references — [communication profile](references/communication-profile.md) and [provenance](references/provenance.md) both exist in the bundle and each link explains what the file is for. It is not 5 because the referenced `upstream/instructions.md`, the file step 2 depends on, is not present in the bundle, so a referenced path does not resolve; provenance also points at out-of-bundle targets (`../LICENSE`, `skills-lock.json`) without in-skill navigation.

Specificity

The description names the domain ("rewrite AI-sounding prose in the author's voice") plus one supporting feature ("Includes a Spanish/English communication profile"), which matches the anchor for 1-2 concrete actions without comprehensive coverage. It does not reach 4 because the remaining clauses ("Recommend it in fitting prose tasks; ask before an unrequested broader rewrite") are invocation policy rather than additional concrete capabilities.

Completeness

Both questions are explicitly answered: what it does ("rewrite AI-sounding prose in the author's voice... Includes a Spanish/English communication profile") and when to use it ("Use on demand when the user requests Humanizer, asks to rewrite AI-sounding prose in the author's voice, or accepts that recommendation..."). The explicit 'Use when' clause with concrete trigger phrases matches the 5 anchor; it is not 4 because the 'when' is specific and multi-trigger, not merely present.

Trigger Term Quality

Natural trigger phrases are present — "requests Humanizer", "rewrite AI-sounding prose", "in the author's voice", "public or professional draft" — phrased the way a user would actually ask. It falls short of 5 because common variations like "make this sound human", "sound like me", or "less robotic" are not covered.

Distinctiveness Conflict Risk

The niche is clear (author-voice humanizing rewrite) with distinct triggers, but there is minor overlap risk with a closely related cleanup skill in the same space: a user asking to "avoid AI writing" or make text "sound less AI" could match this description even though the sibling skill handles conservative cleanup. It is above 3 because the author's-voice rewrite framing and the named skill make it far more specific than generic document or prose helpers.