Conciseness

Every line carries non-obvious information: exact commands ("node website/translate/translate.mjs prepare --json"), file paths ("website/translate/lock/<locale>.json"), and repo-specific rules. The one background sentence ("a TypeScript library for fetching, caching and mutating async data in React and Vue apps") is product context Claude cannot know and is needed to set translation voice. This matches anchor 5 ("lean and efficient; every token earns its place") rather than 4, which requires minor over-explanation that could be trimmed — none is evident.

Actionability

Commands are copy-paste ready and cover the common cases: "node website/translate/translate.mjs prepare --json" (with "--locale es" variant), "finalize", "--same <id>", "node --test website/translate/mdx.test.mjs" and "check". It even specifies the PR title ("docs(i18n): Update translations") and per-page handling ("`new` pages need a full translation... change only the matching parts"). Matches anchor 5 ("fully executable; copy-paste ready commands; specific examples cover the common cases").

Workflow Clarity

The procedure is a clear numbered sequence with an explicit validation feedback loop: "Fix each `✗` problem it prints and run it again until it passes", plus pre-commit checks ("node --test website/translate/mdx.test.mjs" and "check") and stop conditions for the weekly run ("If a translation PR from an earlier run is still open, stop"). For a batch operation (every locale) validation is explicit, so the missing-feedback-loop cap does not apply; this is anchor 5 ("explicit validation steps; feedback loops for error recovery").

Progressive Disclosure

No bundle directories (references/, scripts/, assets/) exist, so this scores on the body itself: a ~40-line skill — under the 50-line simple-skill threshold — organized into three clear sections (Procedure, Weekly run, Translation rules), with a single well-signaled one-level-deep pointer ("How the pieces fit: `website/translate/README.md`") for details the repo already documents. Per the scoring note, this warrants 5 with just well-organized sections.

Specificity

Names concrete actions with their exact targets: "Translate the docs site and blog into another language (website/i18n)" and "update translations after the English docs or blog changed", plus supporting behavior "the repo lists the work and validates it". Not fully comprehensive (languages/locales are unspecified), so it sits at anchor 4 ("several specific actions; minor gaps") rather than 5, and clearly above anchor 3's bare 1-2 generic actions.

Completeness

The "what" is explicit and the "when" is present but embedded rather than stated as a trigger clause: "or update translations after the English docs or blog changed" states the update trigger, but there is no "Use when..." equivalent for the translate-into-a-new-language path. This matches anchor 4 ("both 'what' and 'when'; 'when' could be more explicit or specific"); it is above anchor 3 because trigger guidance is not merely implied — one variant's condition is stated verbatim.

Trigger Term Quality

Good natural keywords: "Translate", "docs", "blog", "translations", "another language", "i18n", "update translations" — phrases a user would plausibly say. A few common variants are missing ("localization", "l10n", specific locale names like Spanish/French), which keeps it at anchor 4 ("good keyword coverage; a few natural terms missing") rather than 5.

Distinctiveness Conflict Risk

"Translate the docs site and blog into another language (website/i18n)" carves a clear niche scoped to this repo's docs site, with repo-specific artifacts ("the repo lists the work and validates it"). Minimal overlap with generic translation or docs skills, matching anchor 5 ("clear niche with distinct triggers; minimal conflict risk").