Conciseness

The body is efficient — terse bullets, minimal before/after code pairs, and copy-paste commands — but the Core Concepts section re-teaches Dart fundamentals Claude already knows ('Apply `?` for nullable types, `!` for null assertions', basic covariant/contravariant rules). This matches 'efficient; minor instances of over-explanation that could be trimmed' rather than the fully lean anchor.

Actionability

Fully executable commands ('dart analyze . --fatal-infos', 'dart fix --dry-run', 'dart fix --apply', 'dart test') plus error-message-conditional decision logic and three complete, compilable input/output Dart examples. This matches the 'fully executable; copy-paste ready; specific examples cover the common cases' anchor.

Workflow Clarity

The Static Analysis Resolution workflow is a clearly sequenced four-step process with a copyable progress checklist, an explicit validation step ('Run the validator. Review errors. Fix.'), and feedback loops ('If `dart analyze` reports errors: Return to Step 3') including diagnostic guidance for test failures. This matches the top anchor with explicit validation and error-recovery loops.

Progressive Disclosure

The single-file skill (~160 lines, no bundle files exist) has a table of contents and well-organized Core Concepts / Workflows / Examples sections, fitting 'good structure; most content is appropriately placed'. It is not a 5 because it exceeds the under-50-line simple-skill exception and the Core Concepts and Examples sections are plausible candidates for split-out reference files.

Specificity

The description lists four concrete chained actions — 'fetch an active stack trace, locate the failing line, apply a fix, and verify resolution via hot_reload' — matching the anchor for several specific actions with minor coverage gaps. It falls short of a 5 because coverage is not comprehensive and the actions lean on tool names rather than capabilities.

Completeness

The 'what' is clearly stated, but there is no 'Use when...' clause or any equivalent explicit trigger guidance, which per the judging guidelines caps completeness at 3. It cannot score 4 without at least a weakly explicit 'when' clause.

Trigger Term Quality

Keywords are dominated by internal tool identifiers ('get_runtime_errors', 'lsp', 'hot_reload') that users would not naturally say, with only 'stack trace' and 'fix' as natural phrases. Common variations like 'Dart', 'runtime errors', 'crash', or 'exception' are missing, matching the 'some relevant keywords but missing common variations or synonyms' anchor rather than the good-coverage anchor above.

Distinctiveness Conflict Risk

The named tools give it some distinctiveness, but the absence of any language or domain term ('Dart', 'Flutter') means it could overlap with any runtime-error-fixing skill and trigger for non-Dart crashes. It fits 'somewhat specific but could still overlap with similar skills' better than the mostly-distinct anchor.