Conciseness

The body is dense and assumes competence — no padding explaining ASR, TTS, or minutes, and every sentence carries a routing decision. The path-resolution paragraph ('Locate this loaded audio-router/SKILL.md ... follow symlinks to its canonical path, and verify its parent...') is wordier than needed and could be tightened, matching 'efficient; minor instances of over-explanation' (4) rather than the lean (5) anchor.

Actionability

The routing table gives exact files per request ('Read this exact file' → '../stepfun-asr/SKILL.md'), and the do-not rules are concrete ('Do not select StepFun merely because a user says "transcribe this audio."'). This is an instruction-only router, so absent code is not penalized, but some directives remain conditional/abstract ('If a task spans stages, read the owner of each stage before acting'), placing it at 'mostly executable guidance with minor gaps' (4) rather than fully copy-paste-ready (5).

Workflow Clarity

The sequence is clear — locate the loaded router, resolve the suite root, select the child from the table, read the child in full — with explicit checkpoints ('verify its parent is audio-router', 'verify it is a direct sibling SKILL.md', 'stop if the active Router path is ambiguous') and a recovery directive ('Continue a truncated read'). It stops short of the 5 anchor because there is no feedback loop after reading the child (e.g., what to do if the child does not cover the request) and the steps are prose rather than a checklist.

Progressive Disclosure

The skill is a router by design: a 44-line overview table mapping each requested result to exactly one one-level-deep sibling SKILL.md, clearly signaled ('Read this exact file'), with no bundle files of its own to inline. This matches the 'clear overview with well-signaled one-level-deep references; easy navigation' (5) anchor and the under-50-lines exception.

Specificity

The description lists several concrete routing actions with named targets — 'Routes audio: StepFun ASR/语音识别, StepFun TTS/配音, transcript/妙记→会议纪要, merge/review minutes' plus 'Reads one bundled specialist' — but the compressed arrow notation leaves some actions implicit, so it falls between the 'several specific actions' (4) and 'comprehensive' (5) anchors.

Completeness

The 'what' is clear (routes audio tasks to bundled specialists), but there is no 'Use when...' clause or equivalent explicit trigger guidance — the routing guideline caps completeness at 3. It fits the 'clear what, when missing or only weakly implied' anchor: 'generic ASR and correction stay direct' is a boundary statement, not a when-to-use trigger.

Trigger Term Quality

Strong bilingual natural keywords: 'audio', 'ASR', '语音识别', 'TTS', '配音', 'transcript', '妙记', '会议纪要', 'merge/review minutes' — terms users would actually say. A few common English variants are missing ('transcription', 'speech recognition', 'voiceover', 'meeting notes'), matching the 'good coverage, a few natural terms missing' (4) anchor rather than the comprehensive-synonym (5) anchor.

Distinctiveness Conflict Risk

The StepFun-branded niche (StepFun ASR/TTS, 妙记→会议纪要) plus the explicit disambiguation 'generic ASR and correction stay direct' keeps conflict risk low, matching 'mostly distinct; minor overlap risk'. It is not a 5 because the minutes-merge/review half could still overlap with a generic minutes skill and the boundary is stated tersely rather than as distinct triggers.