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Agent skill

Analyzing Test Quality

by aiskillstore in aiskillstore/marketplace

Automatically activated when user asks about test quality, code coverage, test reliability, test maintainability, or wants to analyze their test suite.

No licenceAuto-check: notesTesting & QA

Install Analyzing Test Quality

skills CLI
$ npx skills add aiskillstore/marketplace --skill analyzing-test-quality -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install aiskillstore/marketplace analyzing-test-quality --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/aiskillstore/marketplace.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/c0ntr0lledcha0s/analyzing-test-quality .claude/skills/analyzing-test-quality && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
analyzing-test-quality
GitHub stars
430
Token cost
~2.4k tokens
SKILL.md length
699 words
Files
5 (incl. scripts, references, assets)
Skills in repo
1,044
Repo updated
First seen
Licence
None found

At a glance

Automatically activated when user asks about test quality, code coverage, test reliability, test maintainability, or wants to analyze their test suite.

  • Works in 5 steps: Correctness → Readability → Maintainability → …
  • Asks about test quality
  • SKILL.md covers Your Capabilities, When to Use This Skill, How to Use This Skill and Available Resources, plus 4 more sections
  • Runs Shell scripts from its folder; calls npm and npx

What it does

Analyzing Test Quality is an agent skill from aiskillstore/marketplace. Automatically activated when user asks about test quality, code coverage, test reliability, test maintainability, or wants to analyze their test suite. Provides framework-agnostic test quality analysis and improvement recommendations. Does NOT provide framework-specific patterns - use jest-testing or playwright-testing for those.

Its SKILL.md is about 2.4k tokens, which your agent loads only when the skill is triggered. The skill folder holds 7 other files, including scripts, reference files and assets (for example `assets/quality-report.template.md`, `references/quality-checklist.md` and `scripts/calculate-metrics.sh`).

It sits in Testing & QA, covering Test coverage, Unit testing and Test generation. It works with Jest and Playwright. The repository describes itself as: Security-audited skills for Claude, Codex & Claude Code. One-click install, quality verified.

When your agent uses it

  • Asks about test quality
  • Test reliability
  • Test maintainability
  • Wants to analyze their test suite

Example prompts

  • “/analyzing-test-quality”

Requirements

  • Node.js
  • A Bash shell
  • Pre-approved tools (allowed-tools): Read, Grep, Glob, Bash

Workflow steps

5 steps, taken from the step headings in SKILL.md.

  1. Correctness
  2. Readability
  3. Maintainability
  4. Reliability
  5. Speed

What it can do on your machine

Read from SKILL.md and the folder at commit 755bc35. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves these tools, so the agent can use them without asking each time:

    • Read
    • Grep
    • Glob
    • Bash

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    Ships 1 file in scripts/ (Shell), which the agent can run.

    Shell commands in SKILL.md call:

    • npm
    • npx

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md. Its commands use npm and npx, which can reach the network depending on how they are called.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Analyzing Test Quality loads about 2.4k tokens when it runs, and up to ~3.4k if it reads all its reference files. Until then it costs about 89 tokens; SKILL.md has 699 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~89
When it runs · the whole SKILL.md, loaded when a task matches
~2.4k
With references · SKILL.md plus every file in references/, read only if the agent opens them
~3.4k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check: notes

The automated check noted patterns worth knowing about, such as sudo or a known installer.

  • NotePre-approves every shell command (allowed-tools: Bash)SKILL.md
    allowed-tools: Read, Grep, Glob, Bash

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); the scripts in this folder are not scanned.

SKILL.md

Without a licence we can't republish the file, so here is its outline and opening line. It has 699 words (~2,437 tokens).

“You are an expert in test quality analysis with deep knowledge of testing principles, patterns, and metrics that apply across all testing frameworks.”

— opening of SKILL.md by aiskillstore
name
analyzing-test-quality
allowed-tools
Read, Grep, Glob, Bash
version
1.1.0
capabilities
quality-metrics, anti-pattern-detection, coverage-analysis, mutation-testing, test-pyramid-balance, reliability-assessment, maintainability-scoring…

Read the full SKILL.md on GitHub

Files

SKILL.md and 4 other files (scripts, references, assets) in skills/c0ntr0lledcha0s/analyzing-test-quality of aiskillstore/marketplace.

  • SKILL.md
  • assets/quality-report.template.md
  • references/quality-checklist.md
  • scripts/calculate-metrics.sh
  • skill-report.json

Open the folder on GitHubat commit 755bc35

Compare with similar skills

Analyzing Test Quality next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Analyzing Test Quality compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Analyzing Test Quality this skillaiskillstore/marketplace430—~2.4kAutomated safety check: NotesNone
Senior QAalirezarezvani/claude-skills28k1 repos~2.1kAutomated safety check: PassMIT
Test CommanderEliasOulkadi/shokunin114—~3kAutomated safety check: NotesMIT
Qe Test Executionproffesor-for-testing/agentic-qe495—~1.2kAutomated safety check: PassMIT
Qe Test Generationproffesor-for-testing/agentic-qe495—~1.9kAutomated safety check: PassMIT
Senior QAborghei/Claude-Skills886—~1.6kAutomated safety check: PassMIT

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Works with

Categories

Questions about Analyzing Test Quality

What does Analyzing Test Quality do?

Automatically activated when user asks about test quality, code coverage, test reliability, test maintainability, or wants to analyze their test suite. Analyzing Test Quality is an agent skill from aiskillstore/marketplace. Automatically activated when user asks about test quality, code coverage, test reliability, test maintainability, or wants to analyze their test suite.

When should I use Analyzing Test Quality?

Analyzing Test Quality fits situations like: asks about test quality; test reliability; test maintainability; wants to analyze their test suite.

How do I install Analyzing Test Quality in Claude Code?

Run `npx skills add aiskillstore/marketplace --skill analyzing-test-quality -a claude-code`. Or copy the skill folder (skills/c0ntr0lledcha0s/analyzing-test-quality in aiskillstore/marketplace) into .claude/skills/analyzing-test-quality in your project. Claude Code loads it when a task matches its description.

How do I install Analyzing Test Quality in Codex?

Run `npx skills add aiskillstore/marketplace --skill analyzing-test-quality -a codex`. Or copy the skill folder (skills/c0ntr0lledcha0s/analyzing-test-quality in aiskillstore/marketplace) into .agents/skills/analyzing-test-quality in your project. Codex loads it when a task matches its description.

Can I use Analyzing Test Quality in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add aiskillstore/marketplace --skill analyzing-test-quality -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/analyzing-test-quality, .gemini/skills/analyzing-test-quality, .github/skills/analyzing-test-quality and .opencode/skills/analyzing-test-quality in your project.

What does Analyzing Test Quality need to run?

Going by SKILL.md and its folder, Analyzing Test Quality needs a shell for the scripts in its folder and the command-line tools its instructions call (npm and npx). Our summary lists: Node.js; A Bash shell. Its frontmatter pre-approves these tools: Read, Grep, Glob, Bash.

Does Analyzing Test Quality access the network?

SKILL.md contains no URLs. Its commands use npm and npx, which can reach the network depending on how they are called. This is read from the text; nothing was executed.

Is Analyzing Test Quality safe to install?

Our automated static check of SKILL.md found notes only (pre-approves every shell command (allowed-tools: bash)), nothing it rates as a warning. It is not a guarantee. The check reads SKILL.md only: the scripts in the folder are not scanned, so read them before running anything.

What licence does Analyzing Test Quality use?

No licence was found for Analyzing Test Quality or its repository. Without one, default copyright applies: ask the author before reusing or redistributing it.

How many tokens does Analyzing Test Quality use?

About 2.4k tokens (SKILL.md is roughly 9.7k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 998 tokens, read only when the agent opens those files.

What are the alternatives to Analyzing Test Quality?

Skills that share tags, products or a category with Analyzing Test Quality: Senior QA (alirezarezvani/claude-skills, 28k stars), Test Commander (EliasOulkadi/shokunin, 114 stars), Qe Test Execution (proffesor-for-testing/agentic-qe, 495 stars) and Qe Test Generation (proffesor-for-testing/agentic-qe, 495 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Analyzing Test Quality?

aiskillstore (a GitHub organization) maintains it in aiskillstore/marketplace, which has 430 GitHub stars. The repository holds 1,044 skills in this directory. The repository was last updated on October 9, 2026.

Source: aiskillstore/marketplace on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.