Conciseness

The body is fact-dense and avoids explaining known concepts, but long winding sentences ('Each run refreshes protocol modules without serializing live client handles into model requests') could be tightened, and version-sensitive statements ('the default since 25.0.0', 'as the ports did before 25.0.0', 'retains the old behavior') are scattered inline instead of a dedicated old-patterns/deprecated section, which the guidelines penalize. Not 4: the version-comparison asides and dense run-on prose are recurring; not 2: most tokens convey non-obvious package-specific facts.

Actionability

There is one complete executable snippet (helper := ax.NewAgent("question:string -> answer:string", nil); out := helper.Forward(...)) and exact identifiers (AddChildAgent, (*AxAgent).StreamingForward(ctx, client, values, options), actorMode: 'completion', axgoja.NewRuntime()), but most behaviors — MCP cancellation, session work, run controllers, child delegation — are described in prose with no code. Not 4: concrete coverage is limited to a single full example across ~100 lines; not 2: exact API names and option keys are given throughout.

Workflow Clarity

Content is organized by topic with 'When To Use' scenarios, but there is no sequenced multi-step workflow or validation checkpoint; the closest is the guardrail 'if package docs disagree with source code, update the compiler and regenerate packages', a recovery directive without a validate-fix-retry loop. Not 4: no explicit sequence of steps exists; not 2: topics are coherently organized and guardrails give some error-recovery direction.

Progressive Disclosure

Clear section headers exist, but ~100 lines of behavioral detail (Astra session semantics, MCP cancellation rules, streaming behavior) are inlined where a reference-file split would serve better; pointers go to package files (examples/, API.md, axir-capabilities.json) rather than skill bundle references, and no bundle files exist. Not 4: substantial reference-grade content is inlined in SKILL.md; not 2: sections are clearly headed and the API surface is summarized rather than dumped.

Specificity

The description names the exact package ('github.com/ax-llm/ax/packages/go') and enumerates ten concrete capability areas — 'agents, child delegation, tools, MCP, citations, persistent playbook learning, stage instructions, runtime state, final typed responses, and direct-respond executor skipping' — comprehensively covering the skill's surface with no generic filler. Not 4: coverage has no notable gaps matching the body's scope.

Completeness

'Use when writing Go code with `github.com/ax-llm/ax/packages/go` for agents, child delegation...' explicitly answers 'when' with concrete triggers, and the 'what' is conveyed through the enumerated capabilities. Not 5: the 'what' is embedded in the when-clause rather than stated as an explicit capability sentence; not 3: both what and when are effectively present and concrete.

Trigger Term Quality

Natural terms users would say ('Go code', 'agents', 'tools', 'MCP', 'citations', 'child delegation') plus the distinctive import path give good keyword coverage. Not 5: misses natural synonyms and variants a user might say, such as 'golang', 'AxAgent', or 'Astra'.

Distinctiveness Conflict Risk

The specific package path and niche terms ('persistent playbook learning', 'direct-respond executor skipping') establish a clear, narrow domain with minimal risk of triggering for the wrong skill. Not 4: even closely related Go/MCP skills would not match these distinctive triggers.