Official agent skill

Registry

Guidelines for using the IntelliJ Registry API. An agent skill from JetBrains/MPS.

OfficialApache-2.0Auto-check passed

Install Registry

skills CLI

$ npx skills add JetBrains/MPS --skill registry -a claude-code

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

GitHub CLI

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

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 JetBrains/MPS --skill registry -a codex

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

GitHub CLI

$ gh skill install JetBrains/MPS registry --agent codex

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

Manual copy

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

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

GitHub CLI

$ gh skill install JetBrains/MPS registry --agent cursor

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

Manual copy

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

--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 JetBrains/MPS --skill registry -a gemini-cli

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

GitHub CLI

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

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 JetBrains/MPS --skill registry -a github-copilot

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

Manual copy

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

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

Manual copy

$ git clone --depth 1 https://github.com/JetBrains/MPS.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.agents/skills/registry .opencode/skills/registry && 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 "registry" agent skill from https://github.com/JetBrains/MPS/tree/master/.agents/skills/registry into .opencode/skills/registry/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "registry", 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: registry
GitHub stars: 1.7k
Token cost: ~656 tokens
SKILL.md length: 180 words
Files: 1
Skills in repo: 40
Repo updated: Oct 7, 2026
First seen: Oct 8, 2026
Licence: Apache-2.0

At a glance

Guidelines for using the IntelliJ Registry API. An agent skill from JetBrains/MPS.

Works in 2 steps: Search in… → Or check the declaration in plugin.xml`
Working with registry keys
SKILL.md covers Documentation, Quick Reference and Registry in Tests
Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Registry is an agent skill from JetBrains/MPS, published by the product's own GitHub organization. Guidelines for using the IntelliJ Registry API. Use when working with registry keys or feature flags.

Its SKILL.md is about 660 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: JetBrains Meta programming System. The licence is Apache-2.0.

When your agent uses it

Working with registry keys

Example prompts

“Use the registry skill to guideline for using the IntelliJ Registry API. An agent skill from JetBrains/MPS”
“/registry”

Workflow steps

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

Search in community/platform/util/resources/misc/registry.properties
Or check the declaration in plugin.xml`

What it can do on your machine

Read from SKILL.md and the folder at commit a92f944. 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 xml).
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

Registry loads about 656 tokens when it runs. Until then it costs about 28 tokens; SKILL.md has 180 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it: ~28
When it runs · the whole SKILL.md, loaded when a task matches: ~656

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 JetBrains/MPS at commit a92f944, republished under its Apache-2.0 licence (© JetBrains). 180 words, ~656 tokens.

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

name: registry
description: Guidelines for using the IntelliJ Registry API. Use when working with registry keys or feature flags.

Working with Registry

Guidelines for using the IntelliJ Registry API.

Documentation

Defining Registry Keys: Registry.md - How to declare keys in plugin.xml or registry.properties
Cloud Registry: Cloud Registry and Notifications.md - Remote registry updates for JetBrains IDEs

Quick Reference

Defining a Registry Key

Always prefer declaring in plugin.xml (not registry.properties):

xml

<registryKey key="my.feature.enabled"
             defaultValue="true"
             description="Enables my feature"
             restartRequired="false"/>

To override in a dependent plugin:

xml

<registryKey key="my.feature.enabled"
             defaultValue="false"
             description="Enables my feature"
             restartRequired="false"
             overrides="true"/>

Accessing the Registry

In suspending code:

kotlin

val isEnabled = RegistryManager.getInstanceAsync().get("my.key")

In blocking code:

kotlin

val isEnabled = RegistryManager.getInstance().get("my.key")

Access via Registry.get() or Registry.is() is effectively deprecated, since it might cause problems during early IDE startup. Always prefer the RegistryManager when possible.

Early Startup: Registry.is() with Default Value

When code may run before COMPONENTS_LOADED state (e.g., during EULA dialog, splash screen), you MUST use Registry.is(key, defaultValue) with an explicit default:

kotlin

// Required for early startup code
Registry.`is`("my.key", false)  // default must match registry.properties

How to find the default value:

Search in community/platform/util/resources/misc/registry.properties
Or check the <registryKey> declaration in plugin.xml

Why: Registry.is(key) without default throws an exception if called before LoadingState.COMPONENTS_LOADED. The safe overload returns the provided default when Registry is not yet initialized.

Override via Command Line

For testing or run configurations:

-Dmy.registry.key=value

Registry in Tests

Use @RegistryKey annotation instead of Registry.get().setValue():

kotlin

@Test
@RegistryKey(key = "my.registry.key", value = "true")
fun testWithRegistryEnabled() { ... }

See writing-tests.md for more test patterns.

Files

Just SKILL.md in .agents/skills/registry of JetBrains/MPS.

Open the folder on GitHubat commit a92f944

Used in 1 other repository

We found 3 copies of this SKILL.md (exact, near-identical or edited) in other folders. This page covers the copy in JetBrains/MPS, which our catalogue first saw on October 8, 2026.

JetBrains/intellij-community.agents/skills/registry .claude/skills/registry

Compare with similar skills

Registry 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.

Registry compared with similar skills
Skill	Stars	Used in	Tokens	Auto-check	Licence	Repo updated
Registry this skillJetBrains/MPS	1.7k	—	~656	Automated safety check: Pass	Apache-2.0	yesterday
Doc SyncJetBrains/ideavim	10k	2 repos	~2.6k	Automated safety check: Pass	MIT	yesterday
Evals Contextzgsm-ai/costrict	4.4k	1 repos	~1.9k	Automated safety check: Pass	Apache-2.0	8 days ago
ChangelogJetBrains/ideavim	10k	1 repos	~2.7k	Automated safety check: Pass	MIT	yesterday
Youtrack CommunityJetBrains/intellij-community	21k	—	~3.2k	Automated safety check: Notes	Custom licence	yesterday
Compose Multiplatform Patternsmonta-app/ocpp-emulator	180	5 repos	~2k	Automated safety check: Pass	Apache-2.0	7 days ago

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Works with

JetBrains IDEs

Questions about Registry

What does Registry do?

Guidelines for using the IntelliJ Registry API. An agent skill from JetBrains/MPS. Registry is an agent skill from JetBrains/MPS, published by the product's own GitHub organization. Guidelines for using the IntelliJ Registry API.

When should I use Registry?

Registry fits situations like: working with registry keys.

How do I install Registry in Claude Code?

Run `npx skills add JetBrains/MPS --skill registry -a claude-code`. Or copy the skill folder (.agents/skills/registry in JetBrains/MPS) into .claude/skills/registry in your project. Claude Code loads it when a task matches its description.

How do I install Registry in Codex?

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

Can I use Registry 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/MPS --skill registry -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/registry, .gemini/skills/registry, .github/skills/registry and .opencode/skills/registry in your project.

What does Registry need to run?

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

Does Registry 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 Registry 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 Registry use?

Registry is published under the Apache-2.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Registry use?

About 656 tokens (SKILL.md is roughly 2.6k 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 Registry?

Skills that share tags, products or a category with Registry: Doc Sync (JetBrains/ideavim, 10k stars), Evals Context (zgsm-ai/costrict, 4.4k stars), Changelog (JetBrains/ideavim, 10k stars) and Youtrack Community (JetBrains/intellij-community, 21k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Registry?

JetBrains (a GitHub organization, an official publisher) maintains it in JetBrains/MPS, which has 1,660 GitHub stars. The repository holds 40 skills in this directory. The repository was last updated on October 7, 2026.

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

Install Registry

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

Working with Registry

Documentation

Quick Reference

Defining a Registry Key

Accessing the Registry

Early Startup: Registry.is() with Default Value

Override via Command Line

Registry in Tests

Files

Used in 1 other repository

Compare with similar skills

Similar skills

More from JetBrains/MPS

Related

Questions about Registry