Conciseness

Every section carries registry-specific knowledge Claude cannot already have — the file layout, index.md entry point, scope_name semantics, and fallback rules — with zero concept re-teaching or padding; every token earns its place.

Actionability

The lookup workflow is fully concrete: an exact path pattern with a worked example path, a named entry point (index.md), and explicit per-signal table schemas. For an instruction-only lookup skill this guidance is directly executable, so the absence of code is not penalized.

Workflow Clarity

The 4-step lookup is clearly sequenced and includes explicit branch handling for failure cases — no exact match falls back to the highest lower version with a mandatory unverified disclosure, and uncovered components require saying so rather than inferring from semantic conventions. This under-50-line single-task skill qualifies for the simple-skill exception.

Progressive Disclosure

The body is under 50 lines with no external references needed and well-organized sections (layout, lookup, data-file contents), meeting the guideline for a full score on organization alone; the registry design itself further discloses progressively via index.md and per-version data files.

Specificity

"Version-pinned inventory of the telemetry (spans, metrics, logs, attributes) emitted by OpenTelemetry collector components and SDK instrumentation packages" names concrete contents, sources, and version pinning in third person, but it is a single inventory action rather than the multiple distinct actions of the anchor-5 example.

Completeness

The "what" is explicit (a version-pinned telemetry inventory with per-signal coverage) and the "Use when..." clause gives three concrete trigger cases (working with a covered component, comparing emission across versions, upgrading a component or SDK version), matching the anchor-5 example.

Trigger Term Quality

Natural terms are strong — telemetry, spans, metrics, logs, attributes, OpenTelemetry collector, SDK instrumentation, upgrading a version — but common synonyms like "traces" or "signals" are absent, so it falls just short of comprehensive anchor 5.

Distinctiveness Conflict Risk

It occupies a clear niche — an OpenTelemetry telemetry-emissions registry — with distinct, specific triggers, so the risk of firing for the wrong skill is minimal.