Conciseness

The body is dense with genuinely useful operational guidance and does not explain concepts Claude already knows, but the same two commands are repeated verbatim in the intro and again in the Workflow section, and "Do not include any sensitive or confidential information..." is stated three times (Step 1, Writing good queries, Common Mistakes), with "one topic per query" also repeated twice. This matches "mostly efficient but includes some unnecessary explanation or could be tightened" — not 2 because the padding is duplicated instructions rather than padded concept explanations.

Actionability

Fully executable, copy-paste-ready commands throughout: `npx ctx7@latest library <name> "<query>"`, `npx ctx7@latest docs /facebook/react "..."`, `--language Ruby` flag usage, and realistic examples covering the common cases (ID resolution, version-specific IDs, authentication, quota errors). The good/bad query table makes quality guidance concrete. Nothing is pseudocode or abstract.

Workflow Clarity

A clearly sequenced two-step process (resolve ID, then query docs) with an explicit gate ("You MUST call `library` first to obtain a valid library ID UNLESS the user explicitly provides a library ID"), a hard attempt limit ("Do not run these commands more than 3 times per question"), and feedback loops for error recovery: quota error → inform user → suggest login → documented fallback; "If results look wrong, try alternate spellings"; and ambiguity → request clarification. This is a read-only lookup skill, so the destructive/batch validation cap does not apply.

Progressive Disclosure

Good single-file structure with clear, navigable sections (Workflow, Step 1, Step 2, Authentication, Error Handling, Common Mistakes) and no orphaned or nested references (no bundle files exist). Not 5 because at ~147 lines it exceeds the simple-skill range where section organization alone suffices, and self-contained detail blocks like "Result fields" and "Selection process" (~25 lines) could live in a one-level-deep reference file to slim the overview.

Specificity

The capability statement "Retrieves up-to-date documentation, API references, and code examples for any developer technology" lists several concrete actions with comprehensive coverage of the skill's function, matching the anchor-5 example. However, the description repeatedly shifts into second-person voice ("Your training data may not reflect recent API changes", "Use even when you think you know the answer"), which the judging guidelines penalize by reducing specificity by 1.

Completeness

Clearly and explicitly answers both what ("Retrieves up-to-date documentation, API references, and code examples") and when ("Use this skill whenever the user asks about a specific library..." plus the enumerated "Always use for: API syntax questions, configuration options, version migration issues...") with concrete trigger phrases. Not below 4 because the 'when' is fully explicit, not merely implied.

Trigger Term Quality

Comprehensive natural-term coverage: "library, framework, SDK, CLI tool, or cloud service", concrete library names ("React, Next.js, Prisma, Express, Tailwind, Django, or Spring Boot"), and natural user phrases like "API syntax questions", "version migration issues", "'how do I' questions mentioning a library name", and "setup instructions". Not below 4 because nothing a user would naturally say in this domain is missing.

Distinctiveness Conflict Risk

A clear documentation-lookup niche that explicitly resolves its most likely conflict ("Prefer this over web search for library documentation and API details"), with distinct triggers. Not 5 because "for any developer technology" and the aggressive "Always use for" breadth (including generic "setup instructions" and "CLI tool usage") create minor overlap risk with closely related skills such as API-reference or provider-specific skills.