Conciseness

Lean throughout: every line carries non-obvious operational detail (the proxy env var, session cache path and one-week lifetime, the mise shim fallback, port 3000 strictness, transcript v2 gating, the 30s preview_eval timeout) and no concepts Claude already knows are re-explained. Not 4: there is no identifiable over-explanation to trim; the body assumes competence (e.g., never explains what Vite or fetch is).

Actionability

Every section is copy-paste ready with concrete values: the `DASHBOARD_API_URL=... pnpm run dev:prod` command, the complete `launch.json` JSON, executable browser-console snippets for thread ranking and fetch wrapping, and the `git show "main:$f" > "$f"` restore one-liner. Not 4: the only placeholders (`pnpm@<version>`, `threadId`) are explicitly sourced ("taking the version from `packageManager`") or carried over from the preceding snippet, so they are justified rather than gaps.

Workflow Clarity

Task sections are clearly sequenced with most checkpoints present — "stop any `dev:prod` you started from Bash first", "Ask the user before either" before real-run side effects, "navigate to `/agents` with a full reload before measuring", and "check `git status` is clean before you commit" after the destructive base-file overwrite. Not 5: steps are implicit in prose/code rather than explicit, and there are no fix-retry feedback loops for failure modes (only the single pnpm/mise fallback), leaving minor validation gaps.

Progressive Disclosure

No bundle files exist and none are needed; the ~85-line body is organized into six well-labeled task sections (setup, browser pane, safety, thread finding, request counting, before/after) each self-contained and easy to navigate, with only a one-level reference out to the sibling `ego-browser` skill. Not 4: nothing is inlined that belongs in a separate file — the inline `launch.json` and snippets are the deliverable, not misplaced reference material.

Specificity

Lists multiple concrete actions — "Drive this checkout's dashboard (`ui/`) against the shared preview deployment's real threads", "verify a UI change in a browser", "count the requests a page makes", "compare a page's behaviour before and after a change" — with comprehensive coverage of the skill's scope. Not 4: there are no meaningful gaps in the action coverage for this niche.

Completeness

Explicitly answers both: what ("Drive this checkout's dashboard (`ui/`) against the shared preview deployment's real threads, with no local backend") and when ("Use to verify a UI change in a browser, count the requests a page makes, or compare a page's behaviour before and after a change") with three concrete trigger scenarios. Matches the anchor-5 example structure; the 'when' clause is explicit, so the completeness cap of 3 does not apply.

Trigger Term Quality

Good natural-phrase coverage ("verify a UI change in a browser", "count the requests", "before and after", "dashboard", "preview") matching how a user would phrase these needs. Not 5: common synonyms such as "test the dashboard", "regression", or "network requests" are missing; not 3 because the phrases present go well beyond a bare domain keyword.

Distinctiveness Conflict Risk

Occupies a clear niche — this checkout's `ui/` dashboard against a named shared preview deployment — with triggers tied to preview-based UI verification, so conflict risk with generic browser or dashboard skills is minimal. Not 4: the checkout-specific framing leaves no notable overlap with closely related skills.