Conciseness

The body is ~85 lines of terse, imperative bullets ("Remove dead code", "Extract paragraphs into methods", "Never change test assertions, test data, or test logic") with zero explanation of concepts Claude already knows. Every instruction is a directive, matching the anchor "lean and efficient; every token earns its place"; anchor 4 would require over-explanation that is not present.

Actionability

Concrete, executable specifics abound: "Find or create ./test.sh, verify all tests pass", the commit format "- r <refactoring>", and exact announcement strings. However, Code Style heuristics such as "Look for opportunities to simplify" and "Use domain language - name things for what they ARE" lack before/after examples, fitting anchor 4 (mostly concrete guidance with minor gaps) rather than 5.

Workflow Clarity

The staged sequence (Prep, Main Refactoring, Final Evaluation, Summary) is clear with validation at every step ("Ensure all tests pass" before and after each change) and an explicit final-evaluation loop ("Repeat until you find nothing more to improve"). It falls short of anchor 5 because test-failure recovery is only implicit (no "revert if tests fail" step) and "create ./test.sh" is underspecified — anchor 4's "minor validation gaps".

Progressive Disclosure

Sections are well organized and the only language-specific detail is correctly offloaded to a clearly signaled, one-level-deep reference: "For Java: See [references/java.md](references/java.md)" (a real file containing the Java-specific guidance). This matches anchor 5's clear overview with well-signaled one-level-deep references; there is no inline content that belongs in a separate file.

Specificity

"Refactoring process" names the domain but enumerates no concrete actions, mirroring the anchor-2 example "Processes PDF files". It is not score 1 because refactoring is a specific, recognized domain rather than pure abstraction, and not score 3 because no actual capabilities (e.g., extracting methods, renaming, removing dead code) are stated.

Completeness

Both parts are present: 'when' is fully explicit ("Invoke immediately when user or document mentions refactoring, or proactively when code gets too complex or messy") while 'what' is minimal ("Refactoring process"). This lands on anchor 4 (both present, one improvable) rather than 5, since the 'what' states no concrete actions, and above 3, since explicit trigger guidance exists so the completeness cap does not apply.

Trigger Term Quality

"refactoring" and "code gets too complex or messy" are natural user phrases, but common variations and synonyms such as "clean up code", "tidy", or "code smells" are missing. This matches anchor 3 (relevant keywords present, common variations absent) rather than anchor 4's fuller coverage.

Distinctiveness Conflict Risk

"refactoring" defines a clear niche with a distinct trigger keyword, but the proactive trigger "when code gets too complex or messy" overlaps with general code-quality and cleanup skills. This matches anchor 4 (mostly distinct, minor overlap risk with closely related skills) rather than 5's minimal-conflict bar.