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cs-karpathy-reviewer

Reviews staged git changes against Karpathy's 4 coding principles. Runs complexity_checker on changed files, diff_surgeon on the diff, and produces a verdict with specific fix recommendations. Spawn before committing, when the user says "karpathy check", "review my diff", or when the /karpathy-check command is invoked.

69

Quality

87%

Does it follow best practices?

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SecuritybySnyk

Passed

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SKILL.md
Quality
Evals
Security

Quality

Content

86%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 an exemplary lean instruction file: a concrete 4-step workflow, runnable commands, per-principle review questions, and a copy-ready report template with no filler. The only improvements are small robustness details — resolving the <plugin> path and changed-file-list placeholder and adding tool-failure handling.

Suggestions

Resolve the placeholders in the tool commands: state how to obtain the changed-file list (e.g., 'git diff --staged --name-only') and how the '<plugin>' path is determined, so the commands in step 2 are copy-paste executable.

Add a brief fallback for step 2 covering tool failure or empty output (e.g., what to do if complexity_checker or diff_surgeon errors out or returns no findings), giving the workflow a complete feedback loop.

DimensionReasoningScore

Conciseness

The body is lean and assumes Claude's competence: 'You are opinionated and specific — don't just say "looks fine", point to exact lines and explain which principle they violate.' No concept explanations, no padding; every section (Role, Workflow, Rules) carries actionable weight, matching the 'every token earns its place' anchor.

5 / 5

Actionability

Mostly executable guidance: concrete commands ('git diff --staged', 'python <plugin>/scripts/complexity_checker.py <changed-files> --json') and a complete report template with concrete review questions per principle. Minor gaps keep it below anchor 5: the '<plugin>' path placeholder is never resolved, and the workflow doesn't show how to obtain the changed-file list (e.g., 'git diff --staged --name-only').

4 / 5

Workflow Clarity

A clear numbered 4-step sequence (get diff → run tools → manual review → report) with one explicit fallback checkpoint ('If nothing staged, use git diff HEAD~1..HEAD (last commit)'). Below anchor 5 because there is no error-recovery guidance for tool failures or empty/unexpected tool output; this is a read-only review skill, so the destructive-operation validation cap does not apply.

4 / 5

Progressive Disclosure

A single-purpose skill with well-organized sections (Role, a 4-step Workflow, Rules) where all content appropriately lives in SKILL.md — nothing needs splitting into reference files and there are no nested or buried references. Easy to navigate via clear headers, matching the well-organized-structure standard for simple skills.

5 / 5

Total

18

/

20

Passed

Description

83%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 description that clearly states what the skill does and when to invoke it, with concrete natural-language and slash-command triggers. The only weaknesses are minor: the 4 principles are named but not enumerated, and 'review my diff' could collide with generic code-review skills.

DimensionReasoningScore

Specificity

The description lists several concrete actions ("Runs complexity_checker on changed files, diff_surgeon on the diff, and produces a verdict with specific fix recommendations") but never enumerates what Karpathy's 4 principles are, leaving a minor coverage gap. It is above anchor 3 (only 1-2 actions) but short of anchor 5's comprehensive coverage.

4 / 5

Completeness

It explicitly answers both what ('Reviews staged git changes against Karpathy's 4 coding principles... produces a verdict with specific fix recommendations') and when ('Spawn before committing, when the user says "karpathy check", "review my diff", or when the /karpathy-check command is invoked') with concrete trigger phrases, exactly matching the anchor-5 example pattern.

5 / 5

Trigger Term Quality

Concrete trigger phrases are present — '"karpathy check", "review my diff", or when the /karpathy-check command is invoked' plus 'Spawn before committing' — which are natural things a user would say. Missing common variations like 'code review', 'review my changes', or 'check my staged code', so it falls short of the comprehensive synonym coverage of anchor 5.

4 / 5

Distinctiveness Conflict Risk

'Karpathy's 4 coding principles' and the named tools (complexity_checker, diff_surgeon) carve out a clear niche, but the 'review my diff' trigger is generic enough to overlap with general code-review skills. Mostly distinct with minor overlap risk — anchor 4 rather than 5.

4 / 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.

Validation — 15 / 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

Path

.gemini/skills/cs-karpathy-reviewer/SKILL.md

Reviewed

Table of Contents

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