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e2e-testing-patterns

Master end-to-end testing with Playwright and Cypress to build reliable test suites that catch bugs, improve confidence, and enable fast deployment. Use when implementing E2E tests, debugging flaky tests, or establishing testing standards.

64

Quality

76%

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tessl review fix ./plugins/developer-essentials/skills/e2e-testing-patterns/SKILL.md
SKILL.md
Quality
Evals
Security

Quality

Content

65%Weight 40%Scale 1-5

Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.

The body is well-structured with clean progressive disclosure to a real reference file and concrete executable examples, but it is held back by redundant best-practice lists and a conceptual pyramid diagram that pad the token budget without adding novel guidance.

Suggestions

Remove the ASCII Testing Pyramid diagram and its surrounding explanation — Claude already knows the testing pyramid — or move it to references/details.md.

Merge the duplicate 'Best Practices' guidance (the 'Test Philosophy' best practices list and the numbered 'Best Practices' section overlap on 'Test User Behavior', 'Keep Tests Independent', and selector advice); keep one consolidated list.

Add an explicit validation/checkpoint note to the 'Debugging Failing Tests' sequence (e.g. 'confirm the trace shows the failing assertion before iterating') to lift workflow clarity above 3.

DimensionReasoningScore

Conciseness

The body is mostly efficient, but it explains a concept Claude already knows (an ASCII Testing Pyramid diagram) and repeats best-practice items across both the 'Test Philosophy' and 'Best Practices' sections (e.g. 'Test User Behavior', 'Keep Tests Independent'), which is noticeable padding.

3 / 5

Actionability

Provides executable TypeScript snippets and concrete commands (e.g. 'npx playwright test --headed', 'npx playwright test --debug', page.pause(), test.step) with good/bad selector contrasts; minor gaps remain because the most complete worked examples are deferred to references/details.md rather than covered inline.

4 / 5

Workflow Clarity

The 'Debugging Failing Tests' section offers a numbered 1-5 sequence, but there are no explicit validation checkpoints or feedback loops; as a patterns/reference skill this is acceptable, yet the sequence still lacks the checkpoints the 4 anchor requires.

3 / 5

Progressive Disclosure

A clearly signaled one-level-deep reference ('Detailed pattern documentation lives in references/details.md. Read that file when the navigation tier above is insufficient.') points to a real bundle file, and the overview is appropriately split from the detailed patterns.

5 / 5

Total

15

/

20

Passed

Description

87%Weight 40%Scale 1-5

Based on the skill's description, can an agent find and select it at the right time? Clear, specific descriptions lead to better discovery.

A strong, well-scoped description that cleanly states capabilities and gives explicit, natural trigger guidance. The only minor weakness is that the named actions lean toward outcomes rather than enumerated discrete operations.

DimensionReasoningScore

Specificity

Names the domain and several concrete actions ('build reliable test suites that catch bugs, improve confidence, and enable fast deployment') plus the specific tools Playwright and Cypress; actions are slightly outcome-oriented rather than discrete operations, so it sits just below the comprehensive 5 anchor.

4 / 5

Completeness

Explicitly answers both 'what' (Master E2E testing with Playwright/Cypress to build suites that catch bugs and enable fast deployment) and 'when' (Use when implementing E2E tests, debugging flaky tests, or establishing testing standards) with concrete trigger phrases.

5 / 5

Trigger Term Quality

Natural trigger phrases are present ('implementing E2E tests', 'debugging flaky tests', 'establishing testing standards') that users would say, but common synonyms like the full 'end-to-end tests' phrase and the tool names as triggers are not exhaustively covered.

4 / 5

Distinctiveness Conflict Risk

The Playwright/Cypress + end-to-end testing niche is clearly scoped with distinct triggers, creating minimal overlap risk with unit- or integration-testing skills.

5 / 5

Total

18

/

20

Passed

Validation

100%

Checks the skill against the spec for correct structure and formatting. All validation checks must pass before discovery and implementation can be scored.

Validation16 / 16 Passed

Validation for skill structure

No warnings or errors.

Repository
wshobson/agents
Reviewed

Table of Contents

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