Conciseness

The body is lean and list-driven with no explanations of concepts Claude already knows, and one small code snippet. Minor trim opportunities keep it below anchor 5: the intro sentence "This skill helps an agent write Go code with the generated Ax package `github.com/ax-llm/ax/packages/go`" repeats the frontmatter description, the package path appears twice (Package Facts and the Core Pattern import), the ~40-symbol flat enumeration on one line is dense, and "Find ordered or adaptive provider-balancing guidance in the language-specific AI skill" is a vague pointer. It is well above anchor 3's noticeable-padding level.

Actionability

The Core Pattern gives real code (`llm := ax.NewAI("openai", map[string]ax.Value{"apiKey": os.Getenv("OPENAI_API_KEY")})`) but it is a fragment, not an executable program, and its `ax.` prefix conflicts with the `axllm.*` symbols listed in Relevant API Surface. The remaining guidance ("Start from package examples", "Use `provider-api` examples", "Use `no-key` examples") defers to `examples/` and `API.md`, none of which exist in the bundle. This matches anchor 3 (some concrete guidance but incomplete, missing key details) rather than anchor 4's mostly-executable guidance.

Workflow Clarity

"When To Use" and "Guardrails" provide decision guidance (e.g. "Start a generated-language Ax program from package docs or examples", "Use `no-key` examples for deterministic local checks") but there is no sequenced workflow with checkpoints — how to go from examples to written, verified code is implicit and hinges on files absent from the bundle. It fits anchor 3 (steps/guidance present but validation checkpoints missing or implicit); no destructive or batch operations apply, so no hard cap is triggered.

Progressive Disclosure

Sections are well organized and referenced paths are clearly signaled ("Package API docs: `API.md` and `axir-api.json`", "Runnable examples: `examples/`"), but the bundle contains no such files — the references dangle — and the long inlined Relevant API Surface symbol list is exactly the content that belongs in the separate `API.md`. This lands on anchor 3 (some structure, references present, but content that should be separate is inline) rather than anchor 4, since navigation to the referenced detail is not actually possible.

Specificity

The description names the domain very precisely ("writing Go code with `github.com/ax-llm/ax/packages/go`") but its actions are minimal: "for using the generated Ax package, factory functions, package docs, examples, and API reference" enumerates resources rather than concrete actions like the anchor-4 example ("Extracts text... fills forms, converts pages to images"). It fits anchor 3 (domain plus 1-2 concrete actions, not comprehensive); it is above anchor 2 because the domain is named with an exact package path, not generic.

Completeness

It has both an explicit "when" ("Use when writing Go code with `github.com/ax-llm/ax/packages/go`") and a "what" (using the generated Ax package, factory functions, docs, examples, API reference). The "what" is weakened by the awkward "for using... for using" construction and reads as a resource list rather than a clear capability statement, so it does not reach anchor 5's clearly-and-explicitly-both level; it is above anchor 3 because the "when" is fully explicit, not merely implied.

Trigger Term Quality

"writing Go code", "Ax package", "factory functions", "package docs", "examples", "API reference", plus the import path itself give good keyword coverage a user working with this library would naturally say. It falls short of anchor 5's comprehensive synonym coverage (no "golang", "ax-llm", "LLM" variants), and is well above anchor 3's merely-some-relevant-keywords bar.

Distinctiveness Conflict Risk

Triggering is pinned to a single exact package import path (`github.com/ax-llm/ax/packages/go`), giving it a clear niche with distinct triggers and minimal conflict risk even against generic Go-coding skills. It clearly matches anchor 5.