Conciseness

The body is ~30 lean lines of dense, directive guidance — "Wait for the condition you actually depend on (`await expect(locator).toBeVisible()`), never for a duration" — with no padding. It falls short of level 5 because the opening paragraph explains Playwright's auto-waiting behavior, a concept Claude already knows, and that framing could be trimmed to a sentence.

Actionability

Concrete, executable guidance dominates: a real assertion snippet (`await expect(locator).toBeVisible()`), a locator priority order ("role with accessible name → label → `data-testid` → text"), and named anti-patterns (`waitForTimeout`, `div > form > input:nth-child(3)`, `test@test.com`). Level 5 is not reached because the body contains no complete copy-paste-ready test example — the full code lives in the reference files, leaving a minor gap.

Workflow Clarity

As a guidance skill with no multi-step process and no destructive/batch operations, the directives are unambiguous and well-organized, satisfying the simple-skill condition. It stops short of level 5 because there is no explicit sequence for the core task — e.g., which reference to consult first or in what order to build a test (page object → locators → assertions) — leaving the working sequence implicit.

Progressive Disclosure

The body is a concise overview with seven one-line-labeled references, all of which exist in `references/` and are one level deep (verified: no nested `.md` links inside the reference files). This matches the level-5 anchor: clear overview, well-signaled single-level references, appropriately split content, easy navigation.

Specificity

"Playwright E2E: locators, waiting, page objects, auth, network" names the domain plus five concrete coverage areas — more than the 1-2 items of the level-3 anchor, approaching the comprehensive coverage of level 5. It falls short of 5 only because these are topic keywords rather than stated actions (no verbs like 'write', 'debug', 'mock'), leaving minor gaps in what the skill actually does.

Completeness

Both questions are explicitly answered: the "what" is the enumerated coverage (locators, waiting, page objects, auth, network) and the "when" is the concrete, explicit trigger phrase "writing or fixing browser tests". This matches the level-5 anchor (both what AND when with concrete trigger phrases); it is above level 4, where the 'when' would be present but less explicit or specific.

Trigger Term Quality

"Trigger: writing or fixing browser tests" plus "E2E" and "Playwright" are phrases users would naturally say when they need this skill. Level 5 is not reached because common synonyms like "end-to-end tests", "flaky tests", or "test automation" are absent; level 3 would require missing natural phrasing entirely, which is not the case.

Distinctiveness Conflict Risk

"Playwright E2E" carves out a clear niche with distinct triggers, and "browser tests" is scoped by the framework name, giving minimal conflict risk with other testing skills. It sits above level 4, which would require noticeable overlap with closely related skills (e.g., an unnamed browser-automation skill).