Content
67%Weight 40%Scale 1-5Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.
A strong, well-sequenced authoring guide with mostly executable Playwright/Vitest code, real one-level-deep references, and an unusually honest Limitations section. Its main costs are token weight: spec tables and per-spec sentences restating API knowledge Claude already has, and two test snippets with elided setup.
Suggestions
Move the spec-reference tables (PushSubscription properties, PushMessageData methods) into references/push-protocol.md and keep only the tested assertions inline — this trims API reference Claude already knows and directly addresses the lowest-scoring dimension, conciseness.
Replace the '// ... subscribe as Step 2 ...' and '// ... subscribe ...' elisions in Steps 3 and 8 with a shared subscribe() helper (like the existing swReady helper) so every test snippet is copy-paste executable.
Add a short 'When a test fails' checkpoint after the Running section — e.g., common Playwright push failures mapped to their anti-pattern fix — making the error-recovery feedback loop explicit instead of implicit in the anti-patterns table.
| Dimension | Reasoning | Score |
|---|---|---|
Conciseness | The bulk is executable test code, but several passages restate API reference Claude already knows: the PushSubscription property table ('P-256 ECDH Diffie-Hellman public key', 'authentication secret that an application server uses'), the PushMessageData methods table ('Parses as JSON', 'Decodes UTF-8'), and 'Per [mdn-push], `PushManager.getSubscription()` returns the active subscription if one exists, else `null`'. This fits the 3 anchor ('mostly efficient but includes some unnecessary explanation') — not 4, because these padded passages are more than minor; not 2, because the genuinely non-obvious content (headed-mode requirement, Firefox push quota, synthetic-dispatch caveats, endpoint-host brittleness) earns its place. | 3 / 5 |
Actionability | Concrete executable Playwright/Vitest test code for each lifecycle stage, runnable commands ('npx web-push generate-vapid-keys', 'npx playwright test tests/web-push.spec.ts', 'npx vitest run tests/subscription-cleanup.spec.ts'), and CI YAML. It fits the 4 anchor ('mostly executable; concrete code or commands with minor gaps') rather than 5 because Steps 3 and 8 contain elisions ('// ... subscribe as Step 2 ...', '// ... subscribe ...') so those snippets are not copy-paste complete as written, and Steps 6–7 delegate their code to the reference file. | 4 / 5 |
Workflow Clarity | A clear 8-step authoring sequence with a Running section (local + CI) and an anti-patterns table mapping each failure mode to a fix. It fits the 4 anchor ('clear sequence with most checkpoints present; minor validation gaps') rather than 5 because there is no explicit validate→fix→retry loop for a failing test run — error recovery is implicit in the anti-patterns table — and per-step checkpoints are implicit; not 3, because the sequence is coherent and every step produces a concrete, asserted outcome. | 4 / 5 |
Progressive Disclosure | references/push-protocol.md is a real file, one level deep, clearly signaled in Steps 6–7 ('The full response-code table and the cleanup-on-410 Vitest test are in references/push-protocol.md'), and it delivers the promised content (response-code table, VAPID claim table, complete Vitest tests). The split — runnable browser-side core inline, server-side protocol detail in the reference — is appropriate, fitting the 4 anchor; not 5 because the SKILL.md body still inlines substantial spec-reference detail (property and method tables) that a leaner overview would move to the reference. | 4 / 5 |
Total | 15 / 20 Passed |