Doc Sync
JetBrains/ideavim
Keeps IdeaVim documentation in sync with code changes. An agent skill from JetBrains/ideavim.
Debug IntelliJ tests.cmd execution, discovery, and runner internals.
OfficialCustom licenceAuto-check passed
Install Testing Internals
$ npx skills add JetBrains/intellij-community --skill testing-internals -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install JetBrains/intellij-community testing-internals --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/JetBrains/intellij-community.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agents/skills/testing-internals .claude/skills/testing-internals && rm -rf skills-srcUse ~/.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/
Install the "testing-internals" agent skill from https://github.com/JetBrains/intellij-community/tree/master/.agents/skills/testing-internals into .claude/skills/testing-internals/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "testing-internals", 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 install https://github.com/JetBrains/intellij-community/tree/master/.agents/skills/testing-internalsType 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.
$ npx skills add JetBrains/intellij-community --skill testing-internals -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install JetBrains/intellij-community testing-internals --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/JetBrains/intellij-community.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.agents/skills/testing-internals .agents/skills/testing-internals && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "testing-internals" agent skill from https://github.com/JetBrains/intellij-community/tree/master/.agents/skills/testing-internals into .agents/skills/testing-internals/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "testing-internals", 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.
$ npx skills add JetBrains/intellij-community --skill testing-internals -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install JetBrains/intellij-community testing-internals --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/JetBrains/intellij-community.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.agents/skills/testing-internals .cursor/skills/testing-internals && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "testing-internals" agent skill from https://github.com/JetBrains/intellij-community/tree/master/.agents/skills/testing-internals into .cursor/skills/testing-internals/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "testing-internals", 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 https://github.com/JetBrains/intellij-community.git --path .agents/skills/testing-internals--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add JetBrains/intellij-community --skill testing-internals -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install JetBrains/intellij-community testing-internals --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/JetBrains/intellij-community.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.agents/skills/testing-internals .gemini/skills/testing-internals && rm -rf skills-srcUse ~/.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/
Install the "testing-internals" agent skill from https://github.com/JetBrains/intellij-community/tree/master/.agents/skills/testing-internals into .gemini/skills/testing-internals/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "testing-internals", 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.
$ gh skill install JetBrains/intellij-community testing-internalsInstalls 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).
$ npx skills add JetBrains/intellij-community --skill testing-internals -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/JetBrains/intellij-community.git skills-src && mkdir -p .github/skills && cp -r skills-src/.agents/skills/testing-internals .github/skills/testing-internals && rm -rf skills-srcUse ~/.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/
Install the "testing-internals" agent skill from https://github.com/JetBrains/intellij-community/tree/master/.agents/skills/testing-internals into .github/skills/testing-internals/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "testing-internals", 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.
$ npx skills add JetBrains/intellij-community --skill testing-internals -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install JetBrains/intellij-community testing-internals --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/JetBrains/intellij-community.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.agents/skills/testing-internals .opencode/skills/testing-internals && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "testing-internals" agent skill from https://github.com/JetBrains/intellij-community/tree/master/.agents/skills/testing-internals into .opencode/skills/testing-internals/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "testing-internals", 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-internals- GitHub stars
- 21k
- Token cost
- ~5.3k tokens
- SKILL.md length
- 863 words
- Files
- 1
- Skills in repo
- 38
- Repo updated
- First seen
- Licence
- Custom licence
At a glance
Debug IntelliJ tests.cmd execution, discovery, and runner internals.
- Works in 2 steps: Memory Options… → Pass-through System Properties (pass.*…
- SKILL.md covers Overview, Common Issues & Solutions, Quick Reference and Detailed Reference, plus 3 more sections
- Calls bazel
What it does
Testing Internals is an agent skill from JetBrains/intellij-community, published by the product's own GitHub organization. Debug IntelliJ tests.cmd execution, discovery, and runner internals.
Its SKILL.md is about 5.3k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.
It works with JetBrains IDEs. The repository describes itself as: IntelliJ IDEA & IntelliJ Platform.
Example prompts
- “/testing-internals”
Workflow steps
2 steps, taken from the step headings in SKILL.md.
- Memory Options (intellij.build.test.jvm.memory.options)
- Pass-through System Properties (pass.* prefix)
What it can do on your machine
Read from SKILL.md and the folder at commit 562e3a2. 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
Shell commands in SKILL.md call:
bazel
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 Internals loads about 5.3k tokens when it runs. Until then it costs about 22 tokens; SKILL.md has 863 words of instructions outside code blocks.
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 863 words (~5,294 tokens).
“This document explains tests.cmd internals and helps troubleshoot test execution issues.”
- name
- testing-internals
Files
Just SKILL.md in .agents/skills/testing-internals of JetBrains/intellij-community.
Open the folder on GitHubat commit 562e3a2
Compare with similar skills
Testing Internals 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.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Testing Internals this skillJetBrains/intellij-community | 21k | — | ~5.3k | Automated safety check: Pass | Custom licence | |
| Doc SyncJetBrains/ideavim | 10k | 2 repos | ~2.6k | Automated safety check: Pass | MIT | |
| Evals Contextzgsm-ai/costrict | 4.4k | 1 repos | ~1.9k | Automated safety check: Pass | Apache-2.0 | |
| ChangelogJetBrains/ideavim | 10k | 1 repos | ~2.7k | Automated safety check: Pass | MIT | |
| Compose Multiplatform Patternsmonta-app/ocpp-emulator | 180 | 5 repos | ~2k | Automated safety check: Pass | Apache-2.0 | |
| Roo Conflict Resolutionzgsm-ai/costrict | 4.4k | — | ~2.3k | Automated safety check: Pass | Apache-2.0 |
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Compose Multiplatform and Jetpack Compose patterns for KMP projects — state management, navigation, theming, performance, and platform-specific UI.
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Related
Works with
Questions about Testing Internals
What does Testing Internals do?
Debug IntelliJ tests.cmd execution, discovery, and runner internals. Testing Internals is an agent skill from JetBrains/intellij-community, published by the product's own GitHub organization.cmd execution, discovery, and runner internals.
How do I install Testing Internals in Claude Code?
Run `npx skills add JetBrains/intellij-community --skill testing-internals -a claude-code`. Or copy the skill folder (.agents/skills/testing-internals in JetBrains/intellij-community) into .claude/skills/testing-internals in your project. Claude Code loads it when a task matches its description.
How do I install Testing Internals in Codex?
Run `npx skills add JetBrains/intellij-community --skill testing-internals -a codex`. Or copy the skill folder (.agents/skills/testing-internals in JetBrains/intellij-community) into .agents/skills/testing-internals in your project. Codex loads it when a task matches its description.
Can I use Testing Internals 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 JetBrains/intellij-community --skill testing-internals -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-internals, .gemini/skills/testing-internals, .github/skills/testing-internals and .opencode/skills/testing-internals in your project.
What does Testing Internals need to run?
Going by SKILL.md and its folder, Testing Internals needs the command-line tools its instructions call (bazel).
Does Testing Internals 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 Internals 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 Internals use?
Testing Internals 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 Testing Internals use?
About 5.3k tokens (SKILL.md is roughly 21k 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 Internals?
Skills that share tags, products or a category with Testing Internals: Doc Sync (JetBrains/ideavim, 10k stars), Evals Context (zgsm-ai/costrict, 4.4k stars), Changelog (JetBrains/ideavim, 10k stars) and Compose Multiplatform Patterns (monta-app/ocpp-emulator, 180 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Testing Internals?
JetBrains (a GitHub organization, an official publisher) maintains it in JetBrains/intellij-community, which has 20,613 GitHub stars. The repository holds 38 skills in this directory. The repository was last updated on October 8, 2026.
Source: JetBrains/intellij-community on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.