Conciseness

The prose consists entirely of non-obvious specifics ("The key is a project-scoped, write-only token (shaped like a Sentry DSN). No env-var indirection", "WithEndpoint takes a host without scheme, uses HTTPS, and appends the default /v1/<signal> path") with no explanation of concepts Claude already knows. Every section earns its tokens; this matches the lean anchor 5.

Actionability

A complete `go get` command, a full copy-paste bootstrap function, the main() wiring, and a complete span example with error recording and status handling. The guidance is fully executable and covers the common cases (bootstrap, business spans, client transport wrapping, coexistence), matching anchor 5.

Workflow Clarity

The install → bootstrap → wire from main → instrument sequence is clear and logically ordered, with an explicit error policy ("A telemetry setup error is logged, never fatal"). It falls short of anchor 5 because there is no checkpoint verifying that telemetry actually arrives (e.g., confirming export in the Maple UI after bootstrap), a minor validation gap consistent with anchor 4.

Progressive Disclosure

No bundle files exist and none are needed: all content (install, bootstrap, wiring, spans, instrumentation libraries, coexistence) is core to the single task and appropriately kept inline, organized under clear section headers. Under the simple-skill exception, well-organized sections with no external references score 5.

Specificity

The description names the domain plus several concrete technical specifics ("go.opentelemetry.io/otel SDK with otlptracehttp / otlploghttp / otlpmetrichttp exporters", "inline endpoint + ingest key", "semconv resource attributes including vcs.repository.url.full"). It stops short of anchor 5 because it enumerates configuration components rather than comprehensively covering the actions the skill performs (e.g., instrumenting business spans, wiring providers in main).

Completeness

The "what" is clear and specific, but there is no "Use when..." clause or equivalent explicit trigger guidance for when to apply this style. Per the rubric guideline, a missing 'Use when...' clause caps completeness at 3.

Trigger Term Quality

Natural terms a user would say are present ("Go", "OpenTelemetry", "Maple", "ingest key"), giving good keyword coverage. It misses common natural variations like "tracing", "spans", "logs", "metrics", or "instrument", which users are more likely to say than exporter package names, so it fits anchor 4 rather than 5.

Distinctiveness Conflict Risk

"Go OpenTelemetry style for Maple" plus exact Go package paths carves out a clear niche with distinct triggers; it would not plausibly trigger for an unrelated skill, matching anchor 5.