Conciseness

The body is lean and imperative with no concept explanations ("Open `references/generated/otel-version-index.md`", "prefer the latest released version when it is compatible"). Minor over-explanation: step 4's sub-bullets restate what the index column headers already say ("use the Setup Docs column for SDK setup guidance"), and the opening line duplicates the frontmatter description. Anchor 4 rather than 5 due to these trimmable tokens, not 3 because there is no real padding.

Actionability

Concrete guidance throughout: an exact reference path (verified to exist), explicit decision rules ("if the latest release is not compatible, choose the latest compatible version and state the compatibility reason explicitly"), and explicit gap fallback ("fall back to the official release source and official docs"). Minor gap: companion-package lookup says "look up their versions from the release source" without the specific mechanism for packages absent from the index. Mostly executable with a minor gap fits anchor 4; not 3 since nothing is vague or pseudocode.

Workflow Clarity

Five clearly sequenced steps with explicit branches for incompatibility ("state the compatibility reason explicitly"), companion packages, and missing entries ("Handle gaps explicitly"). This is a single-purpose lookup skill with no destructive or batch operations, so no validation cap applies, and the workflow is unambiguous — matching anchor 5 under the simple-skill guidance.

Progressive Disclosure

SKILL.md is a concise overview pointing to a single well-signaled reference, `references/generated/otel-version-index.md`, which exists, is one level deep, and contains exactly the Release Source / Setup Docs / Examples columns the body cites. Time-sensitive version data is correctly kept in the generated reference rather than inlined. This matches anchor 5's clear overview with well-signaled one-level-deep references.

Specificity

Lists several concrete actions — "version lookup across languages", "choosing the latest compatible released ... version", "locating setup docs or examples" — matching the anchor for several specific actions with minor gaps (companion-package resolution and fallback handling are not surfaced). It is not 3 because it names more than 1-2 actions, and not 5 because coverage is not comprehensive.

Completeness

Explicitly answers both: what = "OpenTelemetry SDK and package version lookup across languages", and when = "Use when choosing the latest compatible released OpenTelemetry SDK or package version and locating setup docs or examples" with concrete trigger phrases. Matches the anchor-5 example structure; not 4 because the when-clause is explicit and specific rather than weakly implied.

Trigger Term Quality

Natural domain phrases users would say are present ("OpenTelemetry SDK", "package version", "latest compatible released", "setup docs"), but common variations like "otel", "instrumentation", or "upgrade" are missing. Good coverage with a few natural terms missing fits anchor 4; not 5 since synonyms/abbreviations are not covered, not 3 since the key natural terms are all there.

Distinctiveness Conflict Risk

A clear niche (OpenTelemetry version lookup) with distinct triggers and third-person voice, unlikely to fire for unrelated or even adjacent OTel skills. Fits anchor 5's clear niche with minimal conflict risk; not 4 because the scope is tightly constrained to version selection and doc lookup.