Conciseness

The body is dense with environment-specific, non-obvious constraints (agent-browser CLI choice, docs_root resolution, branch-slug rules, terminal states) and explains nothing Claude already knows. Not 5 because of redundancy: the instruction to read 'references/phases.md' before Phase 0 appears nearly verbatim at both line 16 and line 62, and the branch-slug rule is stated in both SKILL.md and phases.md.

Actionability

Concrete, executable guidance throughout: 'command -v agent-browser >/dev/null 2>&1', 'mktemp -d "${TMPDIR:-/tmp}/ce-dogfood-XXXXXX"', 'git rev-parse --show-toplevel', and explicit phase order. Not 5 because the actual browser-driving and per-phase mechanics are deferred to references/phases.md, leaving minor execution gaps in the top-level file itself.

Workflow Clarity

The sequence 'Scope -> analyze the diff -> map the flows -> derive the matrix -> serve -> execute -> fix loop -> report' is stated as an invariant, with an explicit feedback loop ('A fix is not done until a regression test fails before it and passes after'), incremental validation checkpoints (create the report as soon as the matrix exists, update after each scenario/fix), and defined terminal states with resume behavior. This matches the clear-sequence-with-explicit-validation-and-feedback-loops anchor.

Progressive Disclosure

SKILL.md is a genuine overview: all phase detail is split into references/phases.md, which is strongly signaled ('Read references/phases.md before Phase 0 (Scope) and follow it'), and the bundle structure confirms one-level-deep navigation — phases.md reaches references/test-matrix-taxonomy.md, references/dogfood-report-template.md, and scripts/packs-resolve.py, all of which exist, with no deeper nesting. Not 4 because the split is clean and every reference path resolves to a real file.

Specificity

The description lists multiple concrete actions — 'maps user flows, drives a real browser, autonomously fixes small breakages with regression tests and commits, judges experience against product personas, and writes a durable dogfood report' — with comprehensive coverage of the skill's capabilities. Not 4 because the coverage has no minor gaps: every listed action is specific and distinct.

Completeness

The 'what' is clear and concrete, but there is no 'Use when...' clause or equivalent explicit trigger guidance; 'Manual invocation only' states an invocation constraint, not when the skill applies, which caps completeness at 3 per the judging guideline. Not 4 because the 'when' is only weakly implied by 'of the active branch', and not 2 because the 'what' is fully explicit.

Trigger Term Quality

Good natural keywords — 'browser QA', 'dogfood report', 'regression tests', 'active branch' — phrased the way a user would ask for this skill. Not 5 because common synonyms and variations ('test the branch', 'smoke test', 'end-to-end test') are absent, leaving a few natural terms uncovered.

Distinctiveness Conflict Risk

'Hands-off, diff-scoped browser QA of the active branch' carves out a clear niche with distinct triggers (dogfooding, browser QA of a branch diff) that no generic test/commit skill would claim. Not 4 because overlap risk with neighboring skills is minimal — the persona-judging and durable-report framing is unique.