testing-codegen

Use this skill when selecting or running Biome test fixtures, quick tests, `insta` snapshot workflows, expectation comments, orphan checks, or required code generators. Do not use for subsystem implementation design.

Quality

96%

Does it follow best practices?

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Adds up to 20 points to the overall score

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Securityby

Passed

No findings from the security scan

Quality

Content

100%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 concise, highly actionable, and sequences its workflows with explicit validation checkpoints for destructive and batch operations. Structure is clean with one-level-deep references and no padding.

Dimension	Reasoning	Score
Conciseness	Lean, instruction-only content with no padding and no explanation of concepts Claude already knows; every line carries actionable guidance and earns its place.	5 / 5
Actionability	Provides fully executable, copy-paste-ready commands throughout (`just test-lintrule <ruleName>`, `cargo insta review`, `cargo insta test --workspace --unreferenced delete`, `just gen-grammar <lang>`) with concrete directory paths and exact marker texts.	5 / 5
Workflow Clarity	Sequences multi-step processes with explicit validation for risky batch operations (complete-run requirement before orphan deletion, snapshot review before accept, clean-tree guard for `just ready) and a completion checklist serving as a feedback checkpoint.	5 / 5
Progressive Disclosure	Well-organized into clear sections with a References block pointing one level deep to real repo paths; no bundle files exist to over-inline, and navigation is easy.	5 / 5
	Total	20 / 20 Passed

Description

92%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, well-triggered, and bounded by an explicit negative clause, making it both complete and distinctive. Trigger-term coverage is strong but stops just short of fully comprehensive synonyms.

Dimension	Reasoning	Score
Specificity	Lists multiple specific concrete actions — "Biome test fixtures, quick tests, `insta` snapshot workflows, expectation comments, orphan checks, or required code generators" — giving comprehensive coverage within its domain.	5 / 5
Completeness	Explicitly answers both what (the enumerated actions) and when via the "Use this skill when…" clause, reinforced by an explicit negative boundary ("Do not use for subsystem implementation design").	5 / 5
Trigger Term Quality	Includes natural phrases users would say ("test fixtures", "quick tests", "snapshot workflows", "orphan checks", "code generators"), but a few common synonyms or file-extension variants are missing, keeping it just below the comprehensive anchor.	4 / 5
Distinctiveness Conflict Risk	Narrowly scoped to Biome test/codegen workflows with a clear negative scope, giving it a distinct niche and minimal overlap with other skills.	5 / 5
	Total	19 / 20 Passed

Validation

100%

Warnings & errors only

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

Validation — 16 / 16 Passed

Validation for skill structure

No warnings or errors.

Repository: biomejs/biome
Path: .claude/skills/testing-codegen/SKILL.md
Commit: 7d54688

Reviewed: 1 day ago

Table of Contents

Discovery Implementation Validation

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