Conciseness

Every line is a directive with zero filler: it never explains what git, npm, Mocha, or Redis are, and assumes Claude's competence throughout ("Do not stage, unstage, or commit unless the user explicitly asks"). This matches anchor 5 ("Lean and efficient; every token earns its place"); anchor 4 would require noticeable over-explanation that could be trimmed, and none is present.

Actionability

Commands are copy-paste ready with sensible placeholders: `TS_NODE_TRANSPILE_ONLY=true NODE_ENV=test npx mocha --no-experimental-strip-types "test/unit/<file>.ts"`, `node bin/index.js`, `npx tsd --files test/typing/<file>.test-d.ts`, `npm run docker:setup`. Specific escalation paths ("escalate to `npm test` after focused tests pass") cover the common cases, matching anchor 5.

Workflow Clarity

A clear five-step sequence with explicit validation checkpoints: diff inspection before command choice, a classification checklist, focused-before-broad escalation, deliberate generated-artifact handling, and a reporting step that requires stating failures and skip reasons. Error-recovery guidance is present ("If sandboxed Redis access is blocked, ask for permission", "inspect the generator inputs before accepting it"). This is not a destructive/batch operation skill, so the cap-3 rule does not apply, and the content matches anchor 5's explicit-validation-and-recovery profile.

Progressive Disclosure

The skill is a single ~48-line SKILL.md with no references/, scripts/, or assets/ directories, so all guidance lives in well-organized sections (Workflow, Command Reference) with no nested references. Per the rubric's simple-skill guidance (<50 lines, no need for external references), well-organized sections alone merit anchor 5.

Specificity

"Verify ioredis code changes before handoff" names a concrete action and the description enumerates specific targets ("runtime TypeScript, Redis command support, generated typings, tests, docs tied to behavior, build tooling, release-sensitive files"). It stays at one action verb applied to artifact categories rather than multiple distinct concrete actions, so it matches anchor 4 rather than the comprehensive multi-action coverage of anchor 5.

Completeness

Both parts are explicit: what ("Verify ioredis code changes before handoff") and a concrete "Use when an agent changes or reviews runtime TypeScript, Redis command support, generated typings, tests..." trigger clause. This matches the anchor-5 example structure of clearly answering both what and when with concrete trigger phrases; anchor 4 would require a weaker or less explicit 'when', which is not the case here.

Trigger Term Quality

Good natural keyword coverage: "ioredis", "Redis", "TypeScript", "typings", "tests", "build tooling", "validation commands" — terms an agent in this repo would naturally use. Missing common synonyms and extensions (e.g., ".ts", "npm test", "lint", "tsd"), which keeps it below the comprehensive-with-synonyms anchor 5.

Distinctiveness Conflict Risk

The description is pinned to the ioredis repository ("ioredis code changes", "Redis command support", "generated typings") with a distinct niche — pre-handoff local validation — and minimal overlap risk with generic test/build skills. Clear niche with distinct triggers per anchor 5.