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tdd

Run a red-green-refactor TDD workflow — generate failing tests first, implement to green, then check coverage gaps. Usage: /tdd <generate|coverage|validate> [target]

63

Quality

75%

Does it follow best practices?

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SecuritybySnyk

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tessl review fix ./.gemini/skills/tdd/SKILL.md
SKILL.md
Quality
Evals
Security

Quality

Content

75%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 lean, actionable, and well-structured with executable examples and clear multi-step workflows, with only minor redundancy and a couple of missing validation re-run checkpoints.

Suggestions

Consolidate the duplicated file paths: cite each reference once, either inline or in the 'Repo Assets' list, rather than repeating them in both places.

Add an explicit validation checkpoint to the validate mode (e.g. 'After rewriting, re-run the test file and confirm it passes') to close the feedback loop.

Replace the `<path-to-lcov-or-json>` placeholder in the coverage example with a concrete sample path (the assets sample exists) to make it fully copy-paste ready.

DimensionReasoningScore

Conciseness

The body is efficient and avoids over-explaining TDD concepts, but the 'Repo Assets (verified paths)' section duplicates paths already cited inline in each mode, which could be trimmed.

4 / 5

Actionability

Provides concrete, mostly copy-paste-ready Python examples for generate and coverage modes plus a concrete validate checklist; the coverage example still requires substituting a placeholder path.

4 / 5

Workflow Clarity

Generate and coverage modes are clearly sequenced with an explicit red-checkpoint ('confirm they FAIL') and a feedback loop ('return to /tdd generate'); validate mode lacks an explicit re-run-after-fix checkpoint, leaving a minor gap.

4 / 5

Progressive Disclosure

Well-signaled one-level-deep references to external reference files and scripts, organized in a dedicated assets section; minor organization gap from the inline/section path duplication.

4 / 5

Total

16

/

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.

The description is specific and well-differentiated with strong developer-facing trigger terms, but it lacks an explicit 'Use when...' clause explaining when Claude should invoke the skill.

Suggestions

Add an explicit trigger clause, e.g. 'Use when the user wants to practice TDD, write tests before implementation, or close coverage gaps.'

Include a few natural synonyms like 'unit tests' or 'test coverage' alongside 'TDD' and 'red-green-refactor' to broaden trigger matching.

Make the 'when' guidance distinct from the invocation syntax so the trigger condition is unambiguous.

DimensionReasoningScore

Specificity

Lists multiple concrete actions — 'generate failing tests first', 'implement to green', 'check coverage gaps' — plus three distinct modes (generate/coverage/validate), giving comprehensive coverage of the TDD workflow.

5 / 5

Completeness

The 'what' is clear ('Run a red-green-refactor TDD workflow...') but there is no explicit 'Use when...' trigger clause; the 'Usage:' line gives invocation syntax, not when-to-use guidance, which caps completeness per the rubric.

3 / 5

Trigger Term Quality

Natural developer-facing keywords like 'red-green-refactor', 'failing tests', and 'coverage gaps' are present, but common synonyms such as 'unit tests' or 'test coverage' are absent.

4 / 5

Distinctiveness Conflict Risk

Targets a clear niche (test-driven development) with distinct triggers and minimal overlap risk against unrelated skills.

5 / 5

Total

17

/

20

Passed

Validation

93%

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

Validation15 / 16 Passed

Validation for skill structure

CriteriaDescriptionResult

frontmatter_unknown_keys

Unknown frontmatter key(s) found; consider removing or moving to metadata

Warning

Total

15

/

16

Passed

Repository
alirezarezvani/claude-skills
Reviewed

Table of Contents

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