New: 97,000+ skills indexed from GitHub repos with 100+ stars · every skill safety-checkedBrowse top skillsTop skills
Esc to closeBrowse all skills
Submit a skillBrowse skills
Submit a skillBrowse skills

Agent skill

Generate Tests

by coco-research in coco-research/coco

A skill your agent uses when asked to generate tests for a file, module or component, to raise coverage, or to bootstrap a suite for untested code.

Custom licenceAuto-check passedTesting & QA

Install Generate Tests

skills CLI
$ npx skills add coco-research/coco --skill generate-tests -a claude-code

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

GitHub CLI
$ gh skill install coco-research/coco generate-tests --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/coco-research/coco.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/generate-tests .claude/skills/generate-tests && 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
generate-tests
GitHub stars
473
Token cost
~1.7k tokens
SKILL.md length
766 words
Files
1
Skills in repo
60
Repo updated
First seen
Licence
Custom licence

At a glance

A skill your agent uses when asked to generate tests for a file, module or component, to raise coverage, or to bootstrap a suite for untested code.

  • Works in 5 steps: Detect the Testing Setup → Analyze the Target Code → Plan the Test Suite → …
  • Asked to generate tests for a file
  • SKILL.md covers When This Skill Is Activated, Step 1: Detect the Testing Setup, Step 2: Analyze the Target Code and Step 3: Plan the Test Suite, plus 3 more sections
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Generate Tests is an agent skill from coco-research/coco. Use when asked to generate tests for a file, module or component, to raise coverage, or to bootstrap a suite for untested code. Detects the project's test framework and conventions first, then writes unit, integration and edge-case tests.

Its SKILL.md is about 1.7k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Testing & QA, covering Test generation, Unit testing and Test coverage. It works with Jest, npm and pytest. The repository describes itself as: CoCo Super Intelligence is the orchestration layer that turns Claude Code, Cursor, or Codex into an engineering department: a routed advisory board, 226 skills, 386 commands…

When your agent uses it

  • Asked to generate tests for a file
  • Bootstrap a suite for untested code

Example prompts

  • “/generate-tests”

Requirements

  • Node.js

Workflow steps

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

  1. Detect the Testing Setup
  2. Analyze the Target Code
  3. Plan the Test Suite
  4. Write the Tests
  5. Verify and Improve

What it can do on your machine

Read from SKILL.md and the folder at commit 6036e9c. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    No scripts in the folder and no shell commands in SKILL.md.

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

  • Network

    No URLs in SKILL.md.

    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

Generate Tests loads about 1.7k tokens when it runs. Until then it costs about 63 tokens; SKILL.md has 766 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~63
When it runs · the whole SKILL.md, loaded when a task matches
~1.7k

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 passed

The automated check found no risky patterns in SKILL.md.

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); files beside SKILL.md are not scanned.

SKILL.md

Its licence (Custom licence) doesn't allow us to republish the file, so here is its outline and opening line. It has 766 words (~1,696 tokens).

“Generate complete test coverage for any file, component, or module. Covers unit tests, integration tests, edge cases, error handling, and mocking — adapted to whatever testing framework the project uses.”

— opening of SKILL.md by coco-research, Custom licence
name
generate-tests
domain
engineering
supports
claude-code, cursor, codex, generic
version
0.1.0

Read the full SKILL.md on GitHub

Files

Just SKILL.md in skills/generate-tests of coco-research/coco.

Open the folder on GitHubat commit 6036e9c

Compare with similar skills

Generate Tests 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.

Generate Tests compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Generate Tests this skillcoco-research/coco473—~1.7kAutomated safety check: PassCustom licence
TDD Guidealirezarezvani/claude-skills28k—~3.4kAutomated safety check: PassMIT
TDD GuideLeoYeAI/openclaw-master-skills2.2k—~1.4kAutomated safety check: PassMIT
Coverage EnhancerArabelaTso/Skills-4-SE253—~4.4kAutomated safety check: PassApache-2.0
Test Coverage Reviewareed1192/finance-news-aggregator149—~2.6kAutomated safety check: PassMIT
Write Testsgrafana/synthetic-monitoring-app171—~1.2kAutomated safety check: PassAGPL-3.0

Similar skills

  • TDD Guide

    alirezarezvani/claude-skills

    Test-driven development skill for writing unit tests, generating test fixtures and mocks, analyzing coverage gaps, and guiding red-green-refactor workflows across Jest, Pytest, JUnit, Vitest, and…

    28k GitHub stars~3.4k tokensUpdated 1 mo ago
    Testing & QAAuto-check passed

  • TDD Guide

    LeoYeAI/openclaw-master-skills

    Test-driven development skill for writing unit tests, generating test fixtures and mocks, analyzing coverage gaps, and guiding red-green-refactor workflows across Jest, Pytest, JUnit, Vitest, and…

    2.2k GitHub stars~1.4k tokensUpdated 2 mo ago
    Testing & QAAuto-check passed

  • Coverage Enhancer

    ArabelaTso/Skills-4-SE

    Analyze existing test suites and source code to suggest additional unit tests that improve test coverage.

    253 GitHub stars~4.4k tokensUpdated 1 mo ago
    Testing & QAAuto-check passed

  • Test Coverage Review

    areed1192/finance-news-aggregator

    Audit, plan, write, and verify unit tests for Python projects using pytest.

    149 GitHub stars~2.6k tokensUpdated 5 mo ago
    Testing & QAAuto-check passed

  • Write Tests

    grafana/synthetic-monitoring-app

    Official

    Write Jest integration and unit tests for the Grafana Synthetic Monitoring app using React Testing Library, MSW, and src/test helpers.

    171 GitHub stars~1.2k tokensUpdated yesterday
    Testing & QAAuto-check passed

  • Write Tests

    openplayerjs/openplayerjs

    Write or extend Jest tests for OpenPlayerJS to this repo's exact conventions — makeCore factories, typed internals handles instead of as any, media property mocking, fake timers, ads/vast mocks, and…

    649 GitHub stars~1.8k tokensUpdated 2 days ago
    Testing & QAAuto-check passed

More from coco-research/coco

All 60 skills in this repo

  • Coco Ads

    coco-research/coco

    Turn the project you just shipped into a short, polished, shareable launch video (an "ad") using HyperFrames.

    473 GitHub stars~1.8k tokensUpdated today
    Auto-check passed

  • Arch Index

    coco-research/coco

    Build and validate .arch/index.json — a committed map from each architectural component of this repository to the real directories and files that implement it, pinned to a git commit, with every…

    473 GitHub stars~2.8k tokensUpdated today
    Auto-check passed

  • Skill Evolution

    coco-research/coco

    A skill your agent uses when running, reviewing or changing coco's self-evolution cycle: the 30-day loop that observes how skills are actually used, proposes evidence-backed edits to them as one…

    473 GitHub stars~1.2k tokensUpdated today
    Auto-check passed

  • Coco Diagram

    coco-research/coco

    A skill your agent uses for architecture, current-state, process, data-flow, medallion, or DP diagrams, including redrawing .drawio and Mermaid sources.

    473 GitHub stars~9.2k tokensUpdated today
    Auto-check passed

  • Brain

    coco-research/coco

    A skill your agent uses when the user says brain, project knowledge, what do we know about, open tasks, or recent decisions, or runs /brain or /brain-update.

    473 GitHub stars~1.5k tokensUpdated today
    Auto-check passed

  • M0

    coco-research/coco

    A skill your agent uses when the user says 'm0', 'm0 status', 'start m0', 'cross-tool memory', 'operational thread', or 'where is my memory stored', or when the M0 daemon or MCP wiring needs…

    473 GitHub stars~755 tokensUpdated today
    Auto-check passed

Works with

Categories

Questions about Generate Tests

What does Generate Tests do?

A skill your agent uses when asked to generate tests for a file, module or component, to raise coverage, or to bootstrap a suite for untested code. Generate Tests is an agent skill from coco-research/coco. Use when asked to generate tests for a file, module or component, to raise coverage, or to bootstrap a suite for untested code.

When should I use Generate Tests?

Generate Tests fits situations like: asked to generate tests for a file; bootstrap a suite for untested code.

How do I install Generate Tests in Claude Code?

Run `npx skills add coco-research/coco --skill generate-tests -a claude-code`. Or copy the skill folder (skills/generate-tests in coco-research/coco) into .claude/skills/generate-tests in your project. Claude Code loads it when a task matches its description.

How do I install Generate Tests in Codex?

Run `npx skills add coco-research/coco --skill generate-tests -a codex`. Or copy the skill folder (skills/generate-tests in coco-research/coco) into .agents/skills/generate-tests in your project. Codex loads it when a task matches its description.

Can I use Generate Tests 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 coco-research/coco --skill generate-tests -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/generate-tests, .gemini/skills/generate-tests, .github/skills/generate-tests and .opencode/skills/generate-tests in your project.

What does Generate Tests need to run?

SKILL.md names no scripts, command-line tools or credentials: Generate Tests is instructions for the agent only. Our summary lists: Node.js.

Does Generate Tests access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Generate Tests safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Generate Tests use?

Generate Tests has a licence file (the repository's licence) that doesn't match a standard licence. Read it on GitHub before reusing the skill.

How many tokens does Generate Tests use?

About 1.7k tokens (SKILL.md is roughly 6.8k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Generate Tests?

Skills that share tags, products or a category with Generate Tests: TDD Guide (alirezarezvani/claude-skills, 28k stars), TDD Guide (LeoYeAI/openclaw-master-skills, 2.2k stars), Coverage Enhancer (ArabelaTso/Skills-4-SE, 253 stars) and Test Coverage Review (areed1192/finance-news-aggregator, 149 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Generate Tests?

coco-research (a GitHub user) maintains it in coco-research/coco, which has 473 GitHub stars. The repository holds 60 skills in this directory. The repository was last updated on October 7, 2026.

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