Agent skill

Discover Testing

Automatically discover testing skills when working with unit testing, integration testing, e2e testing, TDD, test coverage, mocking, pytest, Jest, or test automation.

MITAuto-check passedTesting & QA

Install Discover Testing

skills CLI

$ npx skills add rand/cc-polymath --skill discover-testing -a claude-code

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

GitHub CLI

$ gh skill install rand/cc-polymath discover-testing --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/rand/cc-polymath.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/discover-testing .claude/skills/discover-testing && 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/

Paste into Claude Code

Install the "discover-testing" agent skill from https://github.com/rand/cc-polymath/tree/main/skills/discover-testing into .claude/skills/discover-testing/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "discover-testing", then confirm the skill loads.

Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

$skill-installer

$skill-installer install https://github.com/rand/cc-polymath/tree/main/skills/discover-testing

Type this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.

skills CLI

$ npx skills add rand/cc-polymath --skill discover-testing -a codex

Project install goes to .agents/skills/; add -g for ~/.codex/skills/.

GitHub CLI

$ gh skill install rand/cc-polymath discover-testing --agent codex

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/rand/cc-polymath.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/discover-testing .agents/skills/discover-testing && rm -rf skills-src

Use ~/.agents/skills/ instead of .agents/skills for a personal install.

Codex skills documentation · loads skills from .agents/skills/

Paste into Codex

Install the "discover-testing" agent skill from https://github.com/rand/cc-polymath/tree/main/skills/discover-testing into .agents/skills/discover-testing/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "discover-testing", then confirm the skill loads.

Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add rand/cc-polymath --skill discover-testing -a cursor

Project install goes to .agents/skills/; add -g for ~/.cursor/skills/.

GitHub CLI

$ gh skill install rand/cc-polymath discover-testing --agent cursor

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/rand/cc-polymath.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/discover-testing .cursor/skills/discover-testing && rm -rf skills-src

Use ~/.cursor/skills/ instead of .cursor/skills for a personal install.

Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/

Paste into Cursor

Install the "discover-testing" agent skill from https://github.com/rand/cc-polymath/tree/main/skills/discover-testing into .cursor/skills/discover-testing/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "discover-testing", then confirm the skill loads.

Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

gemini skills install

$ gemini skills install https://github.com/rand/cc-polymath.git --path skills/discover-testing

--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.

skills CLI

$ npx skills add rand/cc-polymath --skill discover-testing -a gemini-cli

Project install goes to .agents/skills/; add -g for ~/.gemini/skills/.

GitHub CLI

$ gh skill install rand/cc-polymath discover-testing --agent gemini-cli

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/rand/cc-polymath.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/discover-testing .gemini/skills/discover-testing && rm -rf skills-src

Use ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.

Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/

Paste into Gemini CLI

Install the "discover-testing" agent skill from https://github.com/rand/cc-polymath/tree/main/skills/discover-testing into .gemini/skills/discover-testing/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "discover-testing", then confirm the skill loads.

Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

GitHub CLI

$ gh skill install rand/cc-polymath discover-testing

Installs for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).

skills CLI

$ npx skills add rand/cc-polymath --skill discover-testing -a github-copilot

Project install goes to .agents/skills/; add -g for ~/.copilot/skills/.

Manual copy

$ git clone --depth 1 https://github.com/rand/cc-polymath.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/discover-testing .github/skills/discover-testing && rm -rf skills-src

Use ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.

GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/

Paste into GitHub Copilot

Install the "discover-testing" agent skill from https://github.com/rand/cc-polymath/tree/main/skills/discover-testing into .github/skills/discover-testing/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "discover-testing", then confirm the skill loads.

GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add rand/cc-polymath --skill discover-testing -a opencode

OpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.

GitHub CLI

$ gh skill install rand/cc-polymath discover-testing --agent opencode

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/rand/cc-polymath.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/discover-testing .opencode/skills/discover-testing && rm -rf skills-src

Use ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.

OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/

Paste into OpenCode

Install the "discover-testing" agent skill from https://github.com/rand/cc-polymath/tree/main/skills/discover-testing into .opencode/skills/discover-testing/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "discover-testing", then confirm the skill loads.

OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

Facts

Skill name: discover-testing
GitHub stars: 181
Token cost: ~513 tokens
SKILL.md length: 183 words
Files: 1
Skills in repo: 26
Repo updated: Feb 28, 2026
First seen: Oct 7, 2026
Licence: MIT

At a glance

Automatically discover testing skills when working with unit testing, integration testing, e2e testing, TDD, test coverage, mocking, pytest, Jest, or test automation.

Works in 6 steps: e2e-testing → integration-testing → performance-testing → …
Tasks that involve Unit testing
SKILL.md covers When This Skill Activates, Available Skills, Progressive Loading and Usage Instructions
Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Discover Testing is an agent skill from rand/cc-polymath. Automatically discover testing skills when working with unit testing, integration testing, e2e testing, TDD, test coverage, mocking, pytest, Jest, or test automation. Activates for testing development tasks.

Its SKILL.md is about 510 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts. Compatibility notes: Designed for Claude Code. Compatible with any agent supporting the Agent Skills format.

It sits in Testing & QA, covering Unit testing, End-to-end testing and Test coverage. It works with Jest and pytest. The repository describes itself as: Claude Code skills and workflows, optimized for context-efficiency and skill quality. Skills ranging from cloud infrastructure to design to advanced maths. The licence is MIT.

When your agent uses it

Tasks that involve Unit testing
Tasks that involve End-to-end testing
Tasks that involve Test coverage

Example prompts

“/discover-testing”

Requirements

Compatibility (from SKILL.md): Designed for Claude Code. Compatible with any agent supporting the Agent Skills format.

Workflow steps

6 steps, taken from the first numbered list in SKILL.md.

e2e-testing
integration-testing
performance-testing
test-coverage-strategy
test-driven-development
unit-testing-patterns

What it can do on your machine

Read from SKILL.md and the folder at commit baa2df1. 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.
Compatibility
Designed for Claude Code. Compatible with any agent supporting the Agent Skills format.
From compatibility in the SKILL.md frontmatter.

Context cost

Discover Testing loads about 513 tokens when it runs. Until then it costs about 56 tokens; SKILL.md has 183 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it: ~56
When it runs · the whole SKILL.md, loaded when a task matches: ~513

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

The full file from rand/cc-polymath at commit baa2df1, republished under its MIT licence (© rand). 183 words, ~513 tokens.

Download SKILL.mdSave it as .claude/skills/discover-testing/SKILL.md (or your agent's skills folder).

name: discover-testing
description: Automatically discover testing skills when working with unit testing, integration testing, e2e testing, TDD, test coverage, mocking, pytest, Jest, or test automation. Activates for testing development tasks.
compatibility: Designed for Claude Code. Compatible with any agent supporting the Agent Skills format.
license: MIT
metadata.author: rand
metadata.version: 4.0

Testing Skills Discovery

Provides automatic access to comprehensive testing skills.

When This Skill Activates

This skill auto-activates when you're working with:

testing
tests
unit tests
integration
e2e
TDD
test coverage
performance testing

Available Skills

Quick Reference

The Testing category contains 6 skills:

e2e-testing
integration-testing
performance-testing
test-coverage-strategy
test-driven-development
unit-testing-patterns

Load Full Category Details

For complete descriptions and workflows:

Read ../testing/INDEX.md

This loads the full Testing category index with:

Detailed skill descriptions
Usage triggers for each skill
Common workflow combinations
Cross-references to related skills

Load Specific Skills

Load individual skills as needed:

Read ../testing/e2e-testing.md Read ../testing/integration-testing.md Read ../testing/performance-testing.md Read ../testing/test-coverage-strategy.md Read ../testing/test-driven-development.md

Progressive Loading

This gateway skill enables progressive loading:

Level 1: Gateway loads automatically (you're here now)
Level 2: Load category INDEX.md for full overview
Level 3: Load specific skills as needed

Usage Instructions

Auto-activation: This skill loads automatically when Claude Code detects testing work
Browse skills: Run Read ../testing/INDEX.md for full category overview
Load specific skills: Use bash commands above to load individual skills

Next Steps: Run Read ../testing/INDEX.md to see full category details.

Files

Just SKILL.md in skills/discover-testing of rand/cc-polymath.

Open the folder on GitHubat commit baa2df1

Compare with similar skills

Discover Testing 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.

Discover Testing compared with similar skills
Skill	Stars	Used in	Tokens	Auto-check	Licence	Repo updated
Discover Testing this skillrand/cc-polymath	181	—	~513	Automated safety check: Pass	MIT	7 mo ago
Designing TestsCloudAI-X/claude-workflow-v2	1.4k	1 repos	~1.5k	Automated safety check: Pass	MIT	yesterday
TDD Guidealirezarezvani/claude-skills	28k	—	~3.4k	Automated safety check: Pass	MIT	1 mo ago
TDD GuideLeoYeAI/openclaw-master-skills	2.2k	—	~1.4k	Automated safety check: Pass	MIT	2 mo ago
Write Testsgrafana/synthetic-monitoring-app	171	—	~1.2k	Automated safety check: Pass	AGPL-3.0	today
NIC Testing Patternsnginx/kubernetes-ingress	5.1k	—	~2.8k	Automated safety check: Pass	Apache-2.0	today

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Questions about Discover Testing

What does Discover Testing do?

Automatically discover testing skills when working with unit testing, integration testing, e2e testing, TDD, test coverage, mocking, pytest, Jest, or test automation. Discover Testing is an agent skill from rand/cc-polymath. Automatically discover testing skills when working with unit testing, integration testing, e2e testing, TDD, test coverage, mocking, pytest, Jest, or test automation.

When should I use Discover Testing?

Discover Testing fits situations like: tasks that involve Unit testing; tasks that involve End-to-end testing; tasks that involve Test coverage.

How do I install Discover Testing in Claude Code?

Run `npx skills add rand/cc-polymath --skill discover-testing -a claude-code`. Or copy the skill folder (skills/discover-testing in rand/cc-polymath) into .claude/skills/discover-testing in your project. Claude Code loads it when a task matches its description.

How do I install Discover Testing in Codex?

Run `npx skills add rand/cc-polymath --skill discover-testing -a codex`. Or copy the skill folder (skills/discover-testing in rand/cc-polymath) into .agents/skills/discover-testing in your project. Codex loads it when a task matches its description.

Can I use Discover Testing 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 rand/cc-polymath --skill discover-testing -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/discover-testing, .gemini/skills/discover-testing, .github/skills/discover-testing and .opencode/skills/discover-testing in your project.

What does Discover Testing need to run?

SKILL.md names no scripts, command-line tools or credentials: Discover Testing is instructions for the agent only. Compatibility (from SKILL.md): Designed for Claude Code. Compatible with any agent supporting the Agent Skills format..

Does Discover Testing 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 Discover Testing 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 Discover Testing use?

Discover Testing is published under the MIT licence (declared in SKILL.md). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Discover Testing use?

About 513 tokens (SKILL.md is roughly 2.1k 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 Discover Testing?

Skills that share tags, products or a category with Discover Testing: Designing Tests (CloudAI-X/claude-workflow-v2, 1.4k stars), TDD Guide (alirezarezvani/claude-skills, 28k stars), TDD Guide (LeoYeAI/openclaw-master-skills, 2.2k stars) and Write Tests (grafana/synthetic-monitoring-app, 171 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Discover Testing?

rand (a GitHub user) maintains it in rand/cc-polymath, which has 181 GitHub stars. The repository holds 26 skills in this directory. The repository was last updated on February 28, 2026.

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

Install Discover Testing

Facts

At a glance

What it does

When your agent uses it

Example prompts

Requirements

Workflow steps

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Compatibility

Context cost

Safety

SKILL.md

Testing Skills Discovery

When This Skill Activates

Available Skills

Quick Reference

Load Full Category Details

Load Specific Skills

Progressive Loading

Usage Instructions

Files

Compare with similar skills

Similar skills

More from rand/cc-polymath

Related

Questions about Discover Testing