Conciseness

The body is dense with non-obvious detail (env-var fallback chains, waitUntil lifecycle, coexistence rules) and assumes Claude's competence, but the 'do not use the raw @opentelemetry/api tracer' guidance is stated twice (Custom spans section, lines 98 and 113), and the pinned version 'effect >= 4.0.0-rc.113' is time-sensitive information outside a deprecation/old-patterns section. This is 'efficient with minor instances that could be trimmed' rather than 'every token earns its place'.

Actionability

Fully executable, copy-paste-ready code blocks for all three runtimes (server, Cloudflare Workers, browser) plus custom-span and log patterns, with concrete commands ('npm install @maple-dev/effect-sdk effect'), exact env-var names, and specific option values — the common cases are covered.

Workflow Clarity

Sections sequence the work clearly (install → pick entry point per runtime → bootstrap → instrument with spans/logs) and include a troubleshooting checkpoint ('A missing waitUntil is the most common reason Worker traces never arrive'). It falls short of 5 because there is no explicit validation step (e.g., verifying spans arrive in the Maple dashboard after setup); it is not a destructive or batch workflow, so the 3-cap does not apply.

Progressive Disclosure

The body is well organized with clear per-runtime sections and no nested or buried references, and there are no bundle files to navigate (references/scripts/assets absent). It does not reach 5 because it exceeds the simple under-50-lines case, and deep per-runtime detail (vcs attribute auto-fill, env-var fallback chains) is inlined where a reference file could carry it — but structure and placement are otherwise good.

Specificity

The description names multiple concrete capabilities ('Maple.layer() bootstrap', 'Effect.withSpan / Effect.annotateCurrentSpan call sites', 'Effect.log for trace-correlated logging', 'server / browser / Cloudflare entry points') that comprehensively cover the skill's scope, matching the top anchor rather than the 'minor gaps' anchor at 4.

Completeness

The 'what' is clearly and concretely answered, but there is no 'Use when...' clause or equivalent explicit trigger guidance anywhere in the description. Per the judging guidelines, a missing 'Use when...' clause caps completeness at 3.

Trigger Term Quality

'Effect-TS' and 'OpenTelemetry' are strong natural keywords users would say, but common phrasings like 'tracing', 'spans', 'instrumentation', or 'observability' are absent. This sits between 'some relevant keywords missing variations' (3) and 'comprehensive coverage including synonyms' (5), and noticeably above the midpoint.

Distinctiveness Conflict Risk

The scope is pinned to a specific stack ('Effect-TS OpenTelemetry style for Maple via @maple-dev/effect-sdk') with distinct triggers and minimal overlap risk with generic OpenTelemetry or logging skills, matching the 'clear niche' anchor.