Agent skill

Testing Strategies

Testing patterns for Micronaut/Kotlin backend including repository tests, integration tests, and test data builders.

No licenceAuto-check passedTesting & QA

Install Testing Strategies

skills CLI

$ npx skills add c0x12c/ai-toolkit --skill testing-strategies -a claude-code

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

GitHub CLI

$ gh skill install c0x12c/ai-toolkit testing-strategies --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/c0x12c/ai-toolkit.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.codex/skills/testing-strategies .claude/skills/testing-strategies && 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 "testing-strategies" agent skill from https://github.com/c0x12c/ai-toolkit/tree/master/.codex/skills/testing-strategies into .claude/skills/testing-strategies/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "testing-strategies", 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/c0x12c/ai-toolkit/tree/master/.codex/skills/testing-strategies

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 c0x12c/ai-toolkit --skill testing-strategies -a codex

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

GitHub CLI

$ gh skill install c0x12c/ai-toolkit testing-strategies --agent codex

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

Manual copy

$ git clone --depth 1 https://github.com/c0x12c/ai-toolkit.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.codex/skills/testing-strategies .agents/skills/testing-strategies && 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 "testing-strategies" agent skill from https://github.com/c0x12c/ai-toolkit/tree/master/.codex/skills/testing-strategies into .agents/skills/testing-strategies/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "testing-strategies", 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 c0x12c/ai-toolkit --skill testing-strategies -a cursor

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

GitHub CLI

$ gh skill install c0x12c/ai-toolkit testing-strategies --agent cursor

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

Manual copy

$ git clone --depth 1 https://github.com/c0x12c/ai-toolkit.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.codex/skills/testing-strategies .cursor/skills/testing-strategies && 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 "testing-strategies" agent skill from https://github.com/c0x12c/ai-toolkit/tree/master/.codex/skills/testing-strategies into .cursor/skills/testing-strategies/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "testing-strategies", 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/c0x12c/ai-toolkit.git --path .codex/skills/testing-strategies

--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 c0x12c/ai-toolkit --skill testing-strategies -a gemini-cli

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

GitHub CLI

$ gh skill install c0x12c/ai-toolkit testing-strategies --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/c0x12c/ai-toolkit.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.codex/skills/testing-strategies .gemini/skills/testing-strategies && 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 "testing-strategies" agent skill from https://github.com/c0x12c/ai-toolkit/tree/master/.codex/skills/testing-strategies into .gemini/skills/testing-strategies/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "testing-strategies", 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 c0x12c/ai-toolkit testing-strategies

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 c0x12c/ai-toolkit --skill testing-strategies -a github-copilot

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

Manual copy

$ git clone --depth 1 https://github.com/c0x12c/ai-toolkit.git skills-src && mkdir -p .github/skills && cp -r skills-src/.codex/skills/testing-strategies .github/skills/testing-strategies && 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 "testing-strategies" agent skill from https://github.com/c0x12c/ai-toolkit/tree/master/.codex/skills/testing-strategies into .github/skills/testing-strategies/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "testing-strategies", 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 c0x12c/ai-toolkit --skill testing-strategies -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 c0x12c/ai-toolkit testing-strategies --agent opencode

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

Manual copy

$ git clone --depth 1 https://github.com/c0x12c/ai-toolkit.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.codex/skills/testing-strategies .opencode/skills/testing-strategies && 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 "testing-strategies" agent skill from https://github.com/c0x12c/ai-toolkit/tree/master/.codex/skills/testing-strategies into .opencode/skills/testing-strategies/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "testing-strategies", 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: testing-strategies
GitHub stars: 106
Token cost: ~893 tokens
SKILL.md length: 221 words
Files: 3
Skills in repo: 33
Repo updated: Jun 18, 2026
First seen: Oct 7, 2026
Licence: None found

At a glance

Testing patterns for Micronaut/Kotlin backend including repository tests, integration tests, and test data builders.

Works in 4 steps: Happy path — basic success case → Not found — 404 for missing resource → Auth failure — 401 without token → …
Setting up test infrastructure
SKILL.md covers Integration Tests, Test Naming, Required Test Coverage Per… and Repository Tests, plus 3 more sections
Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Testing Strategies is an agent skill from c0x12c/ai-toolkit. Testing patterns for Micronaut/Kotlin backend including repository tests, integration tests, and test data builders. Use when writing tests, setting up test infrastructure, or improving coverage.

Its SKILL.md is about 890 tokens, which your agent loads only when the skill is triggered. The skill folder holds 2 other files (for example `examples.md` and `integration-test-setup.md`).

It sits in Testing & QA, covering Test strategy, Integration testing and Test data and fixtures. It works with Kotlin.

When your agent uses it

Setting up test infrastructure
Improving coverage

Example prompts

“/testing-strategies”

Workflow steps

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

Happy path — basic success case
Not found — 404 for missing resource
Auth failure — 401 without token
Soft delete — deleted records not returned

What it can do on your machine

Read from SKILL.md and the folder at commit 96b2c9d. 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 (its code samples are kotlin and bash).
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

Testing Strategies loads about 893 tokens when it runs. Until then it costs about 54 tokens; SKILL.md has 221 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it: ~54
When it runs · the whole SKILL.md, loaded when a task matches: ~893

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

Without a licence we can't republish the file, so here is its outline and opening line. It has 221 words (~893 tokens).

“Every endpoint needs an integration test. Extend AbstractControllerTest, use Retrofit clients from module-client, and clean up with truncateAllTables() in @AfterEach.”

— opening of SKILL.md by c0x12c

name: testing-strategies

Read the full SKILL.md on GitHub

Files

SKILL.md and 2 other files in .codex/skills/testing-strategies of c0x12c/ai-toolkit.

SKILL.md
examples.md
integration-test-setup.md

Open the folder on GitHubat commit 96b2c9d

Compare with similar skills

Testing Strategies 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.

Testing Strategies compared with similar skills
Skill	Stars	Used in	Tokens	Auto-check	Licence	Repo updated
Testing Strategies this skillc0x12c/ai-toolkit	106	—	~893	Automated safety check: Pass	None	3 mo ago
Testing Strategybladeofgod/flutter-ai-harness	116	—	~268	Automated safety check: Pass	MIT	1 mo ago
Robotics Testingarpitg1304/robotics-agent-skills	369	—	~4.7k	Automated safety check: Pass	Apache-2.0	1 mo ago
Godot Testing Patternsthedivergentai/GD-Agentic-Skills	821	—	~2.9k	Automated safety check: Pass	LGPL-3.0	1 mo ago
Testing Strategiesancoleman/ai-design-components	525	—	~3.8k	Automated safety check: Pass	MIT	10 mo ago
Java TestingHoangNguyen0403/agent-skills-standard	572	—	~1k	Automated safety check: Pass	MIT	today

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Questions about Testing Strategies

What does Testing Strategies do?

Testing patterns for Micronaut/Kotlin backend including repository tests, integration tests, and test data builders. Testing Strategies is an agent skill from c0x12c/ai-toolkit. Testing patterns for Micronaut/Kotlin backend including repository tests, integration tests, and test data builders.

When should I use Testing Strategies?

Testing Strategies fits situations like: setting up test infrastructure; improving coverage.

How do I install Testing Strategies in Claude Code?

Run `npx skills add c0x12c/ai-toolkit --skill testing-strategies -a claude-code`. Or copy the skill folder (.codex/skills/testing-strategies in c0x12c/ai-toolkit) into .claude/skills/testing-strategies in your project. Claude Code loads it when a task matches its description.

How do I install Testing Strategies in Codex?

Run `npx skills add c0x12c/ai-toolkit --skill testing-strategies -a codex`. Or copy the skill folder (.codex/skills/testing-strategies in c0x12c/ai-toolkit) into .agents/skills/testing-strategies in your project. Codex loads it when a task matches its description.

Can I use Testing Strategies 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 c0x12c/ai-toolkit --skill testing-strategies -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/testing-strategies, .gemini/skills/testing-strategies, .github/skills/testing-strategies and .opencode/skills/testing-strategies in your project.

What does Testing Strategies need to run?

SKILL.md names no scripts, command-line tools or credentials: Testing Strategies is instructions for the agent only.

Does Testing Strategies 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 Testing Strategies 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 Testing Strategies use?

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

How many tokens does Testing Strategies use?

About 893 tokens (SKILL.md is roughly 3.6k 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 Testing Strategies?

Skills that share tags, products or a category with Testing Strategies: Testing Strategy (bladeofgod/flutter-ai-harness, 116 stars), Robotics Testing (arpitg1304/robotics-agent-skills, 369 stars), Godot Testing Patterns (thedivergentai/GD-Agentic-Skills, 821 stars) and Testing Strategies (ancoleman/ai-design-components, 525 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Testing Strategies?

c0x12c (a GitHub organization) maintains it in c0x12c/ai-toolkit, which has 106 GitHub stars. The repository holds 33 skills in this directory. The repository was last updated on June 18, 2026.

Source: c0x12c/ai-toolkit on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.

Testing Strategies

Install Testing Strategies

Facts

At a glance

What it does

When your agent uses it

Example prompts

Workflow steps

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

Files

Compare with similar skills

Similar skills

Testing Strategy

Robotics Testing

Godot Testing Patterns