Conciseness

The body is ~26 lean lines of pure operational instruction with zero padding; even the one explanatory sentence ("Version ranges do not prove behavioral compatibility") conveys a non-obvious project-specific rationale that earns its tokens. It fully matches the 'lean and efficient; every token earns its place' anchor.

Actionability

It gives copy-paste-ready commands for every execution step (`mise x -- go get -u ./...`, `mise x -- go mod tidy`, `mise x -- pnpm update`, `mise test`) with exact paths. It falls just short of anchor 5 because step 4's "Review manifest and lockfile changes" lacks a concrete command (e.g., a git diff invocation), leaving a minor gap.

Workflow Clarity

A clear 6-step numbered sequence with an explicit validation checkpoint ("If tests fail, stop and report the failures ... do not roll them back automatically") and a version-range guardrail in step 4. It is not a 5 because there is no fix-and-revalidate feedback loop, and it is above a 3 since checkpoints are explicit rather than implicit — so the batch-operation cap does not apply.

Progressive Disclosure

The skill is under 50 lines, single-purpose, and has no bundle files, so the simple-skill exception applies: the single heading plus well-organized numbered steps with no external references needed scores 5.

Specificity

The description names the domain ("Chatto Go and frontend dependencies") and two concrete actions ("Update ... within their compatible version ranges" and "run tests"), matching the 1-2 concrete actions anchor. It falls short of anchor 4 because it does not list several specific actions such as manifest/lockfile review or reporting outcomes.

Completeness

The "what" is clear (update Go and frontend dependencies within compatible ranges, then run tests), but there is no "Use when..." clause or equivalent trigger guidance, which caps completeness at 3 per the judging guidelines. It is not a 2 because the "what" is concrete rather than vague.

Trigger Term Quality

Terms like "dependencies", "Go", and "frontend" are relevant keywords a user might say, but common variations such as "upgrade", "bump versions", or "packages" are missing. This sits at anchor 3 rather than 4 because keyword coverage is only partial.

Distinctiveness Conflict Risk

Naming the specific project ("Chatto") and both ecosystems with a compatible-range constraint gives it a mostly distinct niche with only minor overlap risk against generic dependency or testing skills. It is not a 5 because it lacks explicit trigger phrases that would fully separate it from related skills.