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test-quality-reviewer

Evaluate the quality and efficacy of existing tests by reviewing test code against source code. Use when the user asks to review tests, validate test quality, audit test suites, check test efficacy, or assess whether tests are testing things properly. Prioritizes real interactions over mocking and simulation.

69

Quality

85%

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SKILL.md
Quality
Evals
Security

Quality

Content

70%Weight 40%Scale 1-3

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

A well-structured, actionable review skill with strong concrete guidance and clean sectioning. The main weaknesses are mild verbosity in restating familiar testing concepts and the absence of an explicit validation/feedback step in the report-generation workflow.

Suggestions

Add a validation checkpoint at the end of Step 5 (e.g. 'Confirm every reviewed test has a verdict row and every coverage gap has a suggested approach before presenting') to close the workflow's feedback loop.

Tighten the Anti-Patterns Cheat Sheet and per-framework sections by removing restatements of broadly known testing concepts (mocking = wiring verification) and keeping only the skill-specific heuristics and smells.

Consider trimming the Core Philosophy block to the four named principles without the elaborating sentences, since the body already re-applies each principle concretely in later sections.

DimensionReasoningScore

Conciseness

The body is largely lean and adds genuinely useful heuristics Claude would not derive reliably, but sections like the Anti-Patterns Cheat Sheet and per-language guidance restate well-known testing concepts (e.g. 'mocks verify wiring, not behavior') that pad length beyond the essential.

2 / 3

Actionability

Provides concrete, copy-ready guidance: an evaluation criteria table, explicit verdict values, a fully-worked report format with example markdown tables, and per-framework good/bad/smell heuristics — all directly actionable rather than abstract.

3 / 3

Workflow Clarity

The five-step workflow is clearly sequenced, but the report-generation step (a batch output operation) lacks a validation checkpoint confirming the report is complete/correct, and the overall flow has no explicit feedback loop, capping it per the rubric guidance.

2 / 3

Progressive Disclosure

No bundle files exist and the skill is a single-purpose reviewer; the body is well-organized into clearly signaled sections (Philosophy, Workflow, Output Format, Framework Guidance, Anti-Patterns) with no nested references, satisfying the simple-skill carve-out for a score of 3.

3 / 3

Total

10

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12

Passed

Description

100%Weight 40%Scale 1-3

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: concrete actions, natural trigger phrases, explicit 'what' and 'when', and a clear, distinctive niche. It also adds a useful distinguishing philosophy note without becoming verbose.

DimensionReasoningScore

Specificity

Lists multiple concrete actions — 'review test code against source code', 'validate test quality', 'audit test suites', 'check test efficacy', 'assess whether tests are testing things properly' — matching the score-3 anchor of multiple specific actions.

3 / 3

Completeness

Explicitly answers both what it does (evaluate quality/efficacy of existing tests) and when to use it ('Use when the user asks to review tests, validate test quality, audit test suites...'), satisfying the score-3 anchor.

3 / 3

Trigger Term Quality

Covers natural phrases a user would say — 'review tests', 'validate test quality', 'audit test suites', 'check test efficacy' — giving good coverage of common variations, matching the score-3 anchor.

3 / 3

Distinctiveness Conflict Risk

Occupies a clear niche (test-efficacy review, prioritizing real interactions over mocking) with distinct triggers unlikely to fire for unrelated skills, matching the score-3 anchor.

3 / 3

Total

12

/

12

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
mattermost/mattermost-ai-marketplace
Reviewed

Table of Contents

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