Conciseness

The body is dominated by tight tables and before/after examples that are brand-specific and earn their tokens (tone table, word-choice table, Sentry Voice samples), but sections like the Anti-Patterns ("Passive voice: 'Changes were saved' -> 'Changes saved'", "'In order to' -> 'To'", double negatives) and parts of Plain Speech rules restate general writing knowledge Claude already has — minor over-explanation that could be trimmed. It is above 3 because most content is genuinely brand-specific and efficiently formatted, and below 5 because those generic-style sections do not fully assume Claude's competence.

Actionability

The guidance is concrete and copy-paste ready across the common cases: before/after rewrite tables ("Click here to save your changes" -> "Save"), good/bad error messages ("Could not save changes. Check your connection and try again."), empty-state copy, 404 and onboarding samples, and an avoid/prefer word table. Per the code_vs_instruction scoring note, the absence of code is not penalized since the guidance is fully actionable and covers the common UI cases; only tooltips and confirmation dialogs lack worked examples, which is a negligible gap.

Workflow Clarity

This is a simple, single-purpose skill (choose a tone, write the copy), and the single action is unambiguous: the tone-selection table maps each context to Plain Speech or Sentry Voice, reinforced by an explicit default ("Default to Plain Speech unless the context specifically calls for personality") and a 'When NOT to Use' section that stays consistent with the table. Under the simple-skill exception the workflow can score 5; no destructive or batch operations exist that would require validation checkpoints.

Progressive Disclosure

No bundle files exist, and the ~170-line body uses clear section headers (tone selection, both tone guides, general rules, dash usage, UI elements, anti-patterns, references) that make navigation easy, with the References section limited to two clearly labeled external links rather than buried pointers. It falls short of 5 because the skill is well above the under-50-lines threshold for a single-file 5, and some content (e.g., the UI Element Guidelines) could arguably be split into a reference file; it exceeds 3 because nothing that clearly belongs in a separate file is inlined and nothing is buried or nested.

Specificity

"Write copy following Sentry brand guidelines" names the domain and a concrete action, but no additional distinct actions are listed — the rest of the description enumerates contexts rather than capabilities, matching the '1-2 concrete actions, not comprehensive' anchor. It falls short of 4 because there are not several specific actions like 'extracts, fills, merges' in the higher anchors, and exceeds 2 because the domain and action are concrete rather than generic.

Completeness

It explicitly answers both questions: what ("Write copy following Sentry brand guidelines... Covers both Plain Speech (default) and Sentry Voice tones") and when ("Use when writing UI text, error messages, empty states, onboarding flows, 404 pages...") with concrete trigger phrases — a direct match for the top anchor, matching the good_overall_examples pattern.

Trigger Term Quality

"UI text, error messages, empty states, onboarding flows, 404 pages, documentation, marketing copy, user-facing content" are natural phrases a user would say, giving good keyword coverage. It falls short of 5 because common synonyms like "microcopy", "button labels", "copywriting", "help text", or "tone/voice" are missing, and exceeds 3 because far more than a few relevant keywords are covered.

Distinctiveness Conflict Risk

The Sentry brand niche with two named tones (Plain Speech, Sentry Voice) is a clear, distinctive domain with trigger terms unlikely to fire for unrelated skills. It misses 5 because the open-ended catch-all "or any user-facing content" widens the trigger surface with minor overlap risk against generic writing/style skills, and exceeds 3 because the core domain is clearly specific.