The body is short and lean, with no explanations of concepts Claude already knows; every section adds only script-specific detail, matching the lean-and-efficient anchor.

It names the exact script, enumerates concrete JSON input/output fields, lists precise error codes, and gives a copy-paste-ready executable example, satisfying the fully-executable anchor.

This is a simple single-purpose skill whose single action (run the script on stdin JSON and return a markdown summary) is unambiguous, which the rubric allows to score 3 for simple skills; no destructive or batch feedback loop is required for a read-only query wrapper.

Content is organized into clear sections and references a single one-level-deep bundle file, scripts/civic_graphql.py, which exists, with no nested references, matching the well-signaled one-level-deep anchor.

The description lists multiple concrete actions — 'Submit compact CIViC GraphQL requests', 'schema inspection', 'targeted evidence retrieval', and 'concise CIViC summaries' — matching the anchor for several specific actions rather than just naming the domain.

It states both what the skill does and an explicit 'Use when...' trigger, satisfying the anchor for clearly answering both what and when.

Only one trigger phrasing is offered ('Use when a user wants concise CIViC summaries'); while relevant, it misses common variations a user might say such as 'CIViC evidence', 'cancer variant', or 'GraphQL query', so coverage is partial rather than broad.

The CIViC and cancer variant interpretation niche is highly specific with distinct triggers, making overlap with other skills unlikely.