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testing

Use when writing or running tests for this project. Covers unit vs E2E test decisions, test file locations, mock patterns, and project-specific testing conventions. (project)

66

Quality

78%

Does it follow best practices?

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tessl review fix ./.agents/skills/testing/SKILL.md
SKILL.md
Quality
Evals
Security

Quality

Content

82%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.

A well-structured, highly actionable testing skill with exact commands, paths, and a copy-paste E2E example. It is efficient and clearly organized, with only minor conciseness redundancy and no explicit failure-retry loop in the dev workflow.

Suggestions

Add an explicit failure/retry step to the dev workflow (e.g., 'If `npm run check` fails, fix type errors before running tests') to strengthen workflow_clarity.

Collapse the per-suite 'When to use' bullets into the 'When to Use Which' table to remove the slight redundancy and tighten conciseness.

DimensionReasoningScore

Conciseness

Largely lean and assumes Claude's competence (no explanations of vitest or unit-testing concepts), with slight redundancy between the per-suite 'When to use' notes and the 'When to Use Which' table keeping it just shy of a 5.

4 / 5

Actionability

Provides exact copy-paste commands, concrete file paths, specific mock helpers (createNoOpLogger() from @repo/shared), and a complete executable E2E test example covering the common cases.

5 / 5

Workflow Clarity

The 'Running Tests During Development' section gives a clear ordered sequence (check → unit test → e2e) with implicit checkpoints, but lacks an explicit failure/retry feedback loop; this is a non-destructive dev workflow so the destructive-cap does not apply.

4 / 5

Progressive Disclosure

No bundle files exist, so all content lives in a single well-organized file with clear headers and easy navigation; the E2E writing example and conventions section are reasonable inline rather than needing separate files, but the skill exceeds 50 lines so it does not fully qualify for the simple-skill 5.

4 / 5

Total

17

/

20

Passed

Description

75%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 clear, third-person description that explicitly states both capabilities and a 'Use when' trigger, scoped to project-specific testing. It is strong but stops just short of comprehensive trigger-term coverage.

Suggestions

Expand the trigger to cover user-mention variations, e.g. 'Use when writing or running tests, or when the user mentions unit tests, E2E tests, or mocking.'

Replace the generic 'project-specific testing conventions' with one or two concrete examples to push specificity toward 5.

DimensionReasoningScore

Specificity

Lists several concrete capability areas — 'unit vs E2E test decisions, test file locations, mock patterns, and project-specific testing conventions' — covering the testing domain with only minor genericness in 'conventions'.

4 / 5

Completeness

Both what ('Covers unit vs E2E test decisions...') and when ('Use when writing or running tests for this project') are explicit, but the trigger lacks the 'or when the user mentions...' variation that would lift it to a 5.

4 / 5

Trigger Term Quality

Includes natural phrases users say ('writing or running tests', 'unit vs E2E', 'mock patterns') but misses common synonyms like 'spec' or file extensions; good but not comprehensive coverage.

4 / 5

Distinctiveness Conflict Risk

Scoped to 'this project' and 'project-specific testing conventions', making it mostly distinct from general testing skills, with only minor overlap risk against a generic TDD skill.

4 / 5

Total

16

/

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
cloudflare/sandbox-sdk
Reviewed

Table of Contents

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