Conciseness

Every bullet carries generated-package behavior Claude cannot know — "`speak()` returns ... `data` (base64 audio), `format`, `mimeType`, `transcript`", "OpenAI defaults to `gpt-4o-mini-tts` with the `alloy` voice", "Mistral defaults to `voxtral-mini-tts-2603`" — with zero padding or explanation of general concepts. It clearly matches the lean, competence-assuming top anchor rather than the 4 anchor, whose 'minor instances of over-explanation' are absent here.

Actionability

The Core Pattern block is executable ("var llm = Ax.ai("openai", java.util.Map.of("apiKey", System.getenv("OPENAI_API_KEY")))"), and concrete method names and defaults are given ("AiClient.speak(request, options)", "renderAudio / render_audio", pcm16 handling). It is not a 5 because only one small code snippet is shown — a complete end-to-end speak()/audio example is delegated to `examples/` rather than covering the common cases inline, leaving minor gaps.

Workflow Clarity

The guardrails give a clear decision path — "Start from package examples for exact native syntax before inventing a new call shape", "Use `provider-api` examples only when the user explicitly has provider credentials available", and the AxIR-as-source-of-truth rule as a conflict-resolution checkpoint. It is not a 5 because there is no explicit step sequence with validation checkpoints; the rules are conditional directives rather than an ordered workflow with feedback loops.

Progressive Disclosure

"Package Facts" clearly signals one-level-deep references — "Package API docs: `API.md` and `axir-api.json`", "Capability manifest: `axir-capabilities.json`", "Runnable examples: `examples/`" — with a well-sectioned overview. It is not a 5 because the inline "Relevant API Surface" class list and the dense field-mapping bullets partially duplicate content that belongs in those referenced files, and the pointer to "the gen skill" is not pathed; no bundle files were present to verify the referenced paths resolve.

Specificity

The description names the domain ("writing Java code with `dev.axllm:ax`") and lists several concrete capability areas — "audio input/output", "OpenAI Responses audio mapping", "realtime event folding", and "generated package audio examples" — matching the anchor for several specific actions with minor gaps. It is not a 5 because the items are noun phrases rather than stated actions and coverage has small gaps (e.g., speech synthesis and transcription are only implied by "audio input/output").

Completeness

There is an explicit "Use when writing Java code with `dev.axllm:ax` for..." trigger clause plus a list of concrete capability areas, so both what and when are present. It is not a 5 because the "what" is merged into the when-clause rather than stated as its own declarative sentence of what the skill does, keeping the trigger slightly below the fully explicit two-part pattern.

Trigger Term Quality

Natural terms a user would say are present — "Java", "audio", "realtime", "OpenAI Responses" — giving good keyword coverage anchored to a specific package. It falls short of the 5 anchor because common synonyms users would actually say are missing: "speech", "transcription", "TTS", and "voice" never appear even though the body shows these are core use cases.

Distinctiveness Conflict Risk

The trigger is anchored to the specific package id `dev.axllm:ax` and the audio/realtime niche, giving a clear niche with distinct triggers and minimal conflict risk with other Java or audio skills. It clearly matches the top anchor rather than the 4 anchor, since the package identifier alone disambiguates it from any generic audio skill.