Conciseness

The routing table and Resources section are lean, but the ~95-line inlined 'Using Axiom Skills' block pads with emphatic repetition ('This is not negotiable. This is not optional. You cannot rationalize your way out of this.') and a rationalization table, and the Device Hub paragraph restates details that the pointer says live in skills/device-control-ref.md. Mostly efficient with sections that should be tightened, matching anchor 3; not anchor 2 because the core routing content is dense and earns its tokens.

Actionability

Concrete, executable guidance throughout: a fallback path rule ('use `<plugin-root>/tools/<tool>` in place of the bare name'), a question-to-reference routing table with a specific command ('xcui resize sweep'), and named per-tool pointers. Minor gaps — most tools get no example invocation and the `<plugin-root>` resolution rule is convoluted — keep it at anchor 4 rather than 5.

Workflow Clarity

The router's decision flow is clear: check tool availability, route the question via the table to a specific file/section, and the priority ordering (environment → architecture → implementation) plus the multi-domain rule ('invoke ALL relevant routers') sequence decisions well. No validation checkpoints exist, but this router performs no destructive or batch operations, so the cap does not apply; it stays at 4 because the overall read-then-route sequence is implicit rather than stated as steps.

Progressive Disclosure

Good structure: an overview with a routing table mapping questions to one-level-deep, clearly signaled references (skills/xclog-ref.md, skills/xcsym-ref.md, etc.). It falls short of anchor 5 because the ~95-line generic session-start block is inlined rather than kept in its own file, and the referenced skills/*-ref.md files are not present in this skill's bundle (no references/ directory), leaving some pointers unverifiable.

Specificity

The description lists several concrete tool-function pairs — 'axbuild build/test capture', 'xcsym .ips/MetricKit/.crash symbolication', 'xcui simulator UI/accessibility', 'xcprof xctrace/CPU profiles' — but omits capabilities the skill actually routes (device-control/devicectl, screenshots, xcproject), so coverage has minor gaps. It is above anchor 3 because more than 1-2 concrete actions are named, but below anchor 5 because the coverage is not comprehensive.

Completeness

The 'when' is explicit ('Use when asking about Axiom skills or axbuild...') and a functional 'what' is embedded via the enumerated tool capabilities, but the description never explicitly states what the skill does (route/onboard to per-tool reference docs). Both are present with one less explicit — matching anchor 4 rather than anchor 5's fully explicit what-and-when, and clearly above anchor 3 where 'when' would be missing.

Trigger Term Quality

Good natural-term coverage including file extensions and framework names users would say ('.ips', 'MetricKit', '.crash', 'symbolication', 'simulator UI/accessibility', 'CPU profiles'), but common phrasings like 'screenshot', 'Device Hub', 'devicectl', or 'crash report' are missing. It does not reach anchor 5's comprehensive synonym coverage, and clearly exceeds anchor 3's partial coverage.

Distinctiveness Conflict Risk

A clear niche — the Axiom bundled tool suite (axbuild, xclog, xcsym, xcui, xcprof) — with distinct trigger terms and minimal overlap risk; it is scoped away from the domain routers (axiom-build, axiom-swiftui) by naming the tools themselves. Matches anchor 5; no generic language that would fire for unrelated skills.