Conciseness

The same routing mappings (e.g., unit tests → skills/swift-testing.md) are restated across five sections — Quick Reference, Decision Tree, numbered list, Critical Patterns, and Example Invocations — and Anti-Rationalization rows like "sleep() makes tests slower AND flakier" duplicate guidance already given. This is more than anchor 4's minor trimmable instances but stops short of anchor 2's padded conceptual explanations, since no background concepts are over-explained.

Actionability

Directives are concrete and executable for a router: exact file paths ("skills/testing-async.md"), named subagents (test-failure-analyzer, testing-auditor), a slash command ("/axiom-audit testing"), and specific APIs ("Issue.record(severity:)", "expectedCount: 0"). Not a 5 because the "Cursor Subagent Routing" section ("Delegate to the appropriate Cursor subagent when this router calls for a specialized auditor") never defines which subagents or when, leaving a vague directive.

Workflow Clarity

The decision tree, numbered routing list, and Example Invocations give a clear conditional sequence with codebase checks ("Check codebase: XCUIApplication/XCUIElement? → skills/ui-testing.md") that function as checkpoints, matching anchor 4. Not a 5 because checkpoints are implicit in most routes (only one example shows the check-then-branch pattern) and the relationship between the 'Cursor Subagent Routing' section and the Agent routes in the numbered list is left unclear.

Progressive Disclosure

The body is a clean index with well-signaled, one-level-deep references ("See skills/swift-testing.md"), each accompanied by a content preview in Critical Patterns — close to anchor 5's structure. Scored at anchor 4 because no bundle files are present and none of the referenced skills/*.md paths resolve within this bundle, so navigation cannot be verified and the cross-skill references (axiom-ai, axiom-build, axiom-xcode-mcp) point outside the skill entirely.

Specificity

Lists several concrete actions — "debugging flaky tests", "making tests faster", "choosing Swift Testing vs XCTest" — comparable to the anchor-4 example of several specific actions with minor gaps. Not a 5 because the description omits several capabilities the body covers (test auditing, CI execution, UI recording) and "test architecture" is abstract.

Completeness

Explicitly answers both: what ("Covers unit tests, UI tests, async testing, test architecture") and when ("Use when writing ANY test, debugging flaky tests, making tests faster, or choosing Swift Testing vs XCTest") with concrete trigger phrases, matching anchor 5. It exceeds anchor 4, whose 'when' clause is far less specific ("Use when working with PDF files").

Trigger Term Quality

Includes natural phrases users would say — "flaky tests", "unit tests", "UI tests", "async testing", "Swift Testing", "XCTest" — matching anchor 4's good coverage with a few natural terms missing. Falls short of anchor 5 because common variations like "XCUITest", "test coverage", "test plans", or "CI" are absent.

Distinctiveness Conflict Risk

Naming "Swift Testing vs XCTest" anchors it to a clear Swift/iOS niche with mostly distinct triggers, matching anchor 4. Not a 5 because "writing ANY test" and the generic "test architecture" claim breadth that could overlap with related testing skills (e.g., the referenced axiom-ai evaluations skill that also runs inside Swift Testing).