Conciseness

Mostly efficient but includes unnecessary explanation that could be tightened: the meta 'Questions' paragraph rationalizing its own repetition, the 'Thinking mode'/'Orchestration mode' justification paragraphs, and the Fowler definition ('Refactoring (Fowler) is changing code's internal structure...') Claude already knows. Not 4 because the padding is more than minor; not 2 because the bulk is skill-specific reasoning that earns its place.

Actionability

Concrete, executable commands throughout — 'go build ./... && go vet ./... && go test ./...; add -race for concurrency changes and benchstat-backed -bench', 'type A = B', and the escalation 'gofmt -r → eg → gopatch → go/analysis fixer'. Not 5 because exact gopls Rename/Extract invocation is deferred to go-tooling.md rather than shown inline, leaving a minor gap.

Workflow Clarity

Clear numbered Core Loop (Understand → Safety net → Small tool-driven step → Verify → Atomic single-category commit) with an explicit verify step, a revert-on-red feedback loop ('revert rather than debug forward when it goes red'), sign-off gates, and a Diagnose section mapping failure signals to actions — matching the 5 anchor with feedback loops and checkpoints.

Progressive Disclosure

Clear overview with five real, one-level-deep references (workflow.md, catalog.md, go-tooling.md, safety-net.md, structural.md — all present on disk), clearly signaled via inline links and a dedicated 'Detailed References' section, with content appropriately split. Matches the 5 anchor for easy navigation.

Specificity

Lists multiple specific concrete actions — 'coverage-adaptive safety net, behavior-preserving transforms (gopls Rename/Extract, `gofmt -r`, `gopatch`), the Fowler catalog mapped to Go, breaking import cycles, and small stacked PRs' — for comprehensive coverage matching the 5 anchor; no significant gaps to drop it to 4.

Completeness

Explicitly answers both what ('safe, at-scale restructuring of existing Go code: ...') and when ('Apply when a function or type has grown too large, a code smell blocks a feature, or the user asks to refactor Go code') with concrete trigger phrases, matching the 5 anchor exactly.

Trigger Term Quality

Comprehensive natural trigger terms with synonyms: 'refactor Go code', 'renaming at scale', 'extracting functions or interfaces', 'moving code between packages', 'planning a multi-step refactor' — the kind of phrasing a user would actually say; not 4 because coverage is thorough rather than missing only 'a few' terms.

Distinctiveness Conflict Risk

Clear niche (Go refactoring mechanics) with explicit carve-outs to sibling skills — 'Target styles owned elsewhere → See golang-naming, golang-project-layout, golang-modernize, golang-code-style, golang-design-patterns' — minimizing conflict risk; matches the 5 anchor.