OMK Packages

August 13, 2026 ยท View on GitHub

omk can help you create omk packages. Ask it to bundle your extensions, skills, prompt templates, or themes.

OMK Packages

OMK packages bundle extensions, skills, prompt templates, and themes so you can share them through npm or git. A package can declare resources in package.json under omk or the compatible pi key, or use conventional directories.

Table of Contents

Install and Manage

Security: OMK packages run with full system access. Extensions execute arbitrary code, and skills can instruct the model to perform any action including running executables. Review source code before installing third-party packages.

omk install npm:@foo/bar@1.0.0
omk install git:github.com/user/repo@v1
omk install https://github.com/user/repo  # raw URLs work too
omk install /absolute/path/to/package
omk install ./relative/path/to/package

omk remove npm:@foo/bar
omk list                     # show installed packages from settings
omk package doctor npm:@foo/bar@1.0.0  # static compatibility report as JSON
omk update                   # update omk, update packages, and reconcile pinned git refs
omk update --extensions      # update packages and reconcile pinned git refs only
omk update --self            # update omk only
omk update --self --force    # reinstall omk even if current
omk update npm:@foo/bar      # update one package
omk update --extension npm:@foo/bar

These commands manage omk packages, not the omk CLI installation. To uninstall omk itself, see Quickstart.

By default, install and remove write to user settings (~/.omk/agent/settings.json). Use -l to write to project settings (.omk/settings.json) instead. Project settings can be shared with your team, and omk installs any missing packages automatically on startup.

To try a package without installing it, use --extension or -e. This installs to a temporary directory for the current run only:

omk -e npm:@foo/bar
omk -e git:github.com/user/repo

Pi Compatibility and Package Doctor

OMK reads package manifests in strict priority order: omk, then pi, then conventional directories. The first present manifest is authoritative. If it is malformed, OMK reports the error instead of silently falling back. When both keys exist, omk wins and the doctor reports that pi was shadowed.

A Pi extension directory entry such as "extensions": ["./"] resolves to its index.ts, index.js, index.mjs, or index.cjs. It is not recursively treated as a directory of independent extensions.

Inspect a local, npm, or git source before installing it:

omk package doctor ./local-package
omk package doctor npm:@scope/package@1.2.3 > package-doctor.json
omk package doctor git:github.com/user/repo@v1

The command emits a versioned JSON report and returns 0 when no compatibility error is found, 1 for an incompatible package or inspection failure, and 2 for invalid CLI usage. It checks manifest precedence, declared resources, legacy Pi runtime imports, .pi storage paths, lifecycle event names, headless UI guards, and resume signals.

The doctor never imports extension modules. For npm sources it downloads the registry tarball with npm pack --ignore-scripts and extracts bounded regular files without installing dependencies. Git inspection clones without running npm install. These static checks are advisory and do not make third-party code trusted.

Package Sources

OMK accepts three source types in settings and omk install.

npm

npm:@scope/pkg@1.2.3
npm:pkg
  • Versioned specs are pinned and skipped by package updates (omk update, omk update --extensions).
  • User installs go under ~/.omk/agent/npm/.
  • Project installs go under .omk/npm/.
  • Set npmCommand in settings.json to pin npm package lookup and install operations to a specific wrapper command such as mise or asdf.

Example:

{
  "npmCommand": ["mise", "exec", "node@20", "--", "npm"]
}

git

git:github.com/user/repo@v1
git:git@github.com:user/repo@v1
https://github.com/user/repo@v1
ssh://git@github.com/user/repo@v1
  • Without git: prefix, only protocol URLs are accepted (https://, http://, ssh://, git://).
  • With git: prefix, shorthand formats are accepted, including github.com/user/repo and git@github.com:user/repo.
  • HTTPS and SSH URLs are both supported.
  • SSH URLs use your configured SSH keys automatically (respects ~/.ssh/config).
  • For non-interactive runs (for example CI), you can set GIT_TERMINAL_PROMPT=0 to disable credential prompts and set GIT_SSH_COMMAND (for example ssh -o BatchMode=yes -o ConnectTimeout=5) to fail fast.
  • Refs are pinned tags or commits. omk update and omk update --extensions do not move them to newer refs, but they do reconcile an existing clone to the configured ref.
  • Use omk install git:host/user/repo@new-ref to update settings and move an existing package to a new pinned ref.
  • Cloned to ~/.omk/agent/git/<host>/<path> (global) or .omk/git/<host>/<path> (project).
  • When reconciliation changes the checkout, omk resets and cleans the clone, then runs npm install if package.json exists.

SSH examples:

# git@host:path shorthand (requires git: prefix)
omk install git:git@github.com:user/repo

# ssh:// protocol format
omk install ssh://git@github.com/user/repo

# With version ref
omk install git:git@github.com:user/repo@v1.0.0

Local Paths

/absolute/path/to/package
./relative/path/to/package

Local paths point to files or directories on disk and are added to settings without copying. Relative paths are resolved against the settings file they appear in. If the path is a file, it loads as a single extension. If it is a directory, omk loads resources using package rules.

Creating a OMK Package

Add an omk manifest to package.json or use conventional directories. OMK also reads a Pi-compatible pi manifest when omk is absent. Include the omk-package keyword for discoverability.

{
  "name": "my-package",
  "keywords": ["omk-package"],
  "omk": {
    "extensions": ["./extensions"],
    "skills": ["./skills"],
    "prompts": ["./prompts"],
    "themes": ["./themes"]
  }
}

Paths are relative to the package root. Arrays support glob patterns and !exclusions.

The package gallery displays packages tagged with omk-package. Add video or image fields to show a preview:

{
  "name": "my-package",
  "keywords": ["omk-package"],
  "omk": {
    "extensions": ["./extensions"],
    "video": "https://example.com/demo.mp4",
    "image": "https://example.com/screenshot.png"
  }
}
  • video: MP4 only. On desktop, autoplays on hover. Clicking opens a fullscreen player.
  • image: PNG, JPEG, GIF, or WebP. Displayed as a static preview.

If both are set, video takes precedence.

Package Structure

Convention Directories

If neither an omk nor a pi manifest is present, omk auto-discovers resources from these directories:

  • extensions/ loads .ts and .js files
  • skills/ recursively finds SKILL.md folders and loads top-level .md files as skills
  • prompts/ loads .md files
  • themes/ loads .json files

Dependencies

Third party runtime dependencies belong in dependencies in package.json. Dependencies that do not register extensions, skills, prompt templates, or themes also belong in dependencies. Normal npm and git installation installs runtime dependencies automatically. omk package doctor is different: it does not install dependencies or execute lifecycle scripts.

OMK bundles core packages for extensions and skills. If you import any of these, list them in peerDependencies with a "*" range and do not bundle them: omk-ai, omk-agent-core, open-multi-agent-kit, omk-tui, typebox.

Other omk packages must be bundled in your tarball. Add them to dependencies and bundledDependencies, then reference their resources through node_modules/ paths. OMK loads packages with separate module roots, so separate installs do not collide or share modules.

Example:

{
  "dependencies": {
    "shitty-extensions": "^1.0.1"
  },
  "bundledDependencies": ["shitty-extensions"],
  "omk": {
    "extensions": ["extensions", "node_modules/shitty-extensions/extensions"],
    "skills": ["skills", "node_modules/shitty-extensions/skills"]
  }
}

Package Filtering

Filter what a package loads using the object form in settings:

{
  "packages": [
    "npm:simple-pkg",
    {
      "source": "npm:my-package",
      "extensions": ["extensions/*.ts", "!extensions/legacy.ts"],
      "skills": [],
      "prompts": ["prompts/review.md"],
      "themes": ["+themes/legacy.json"]
    }
  ]
}

+path and -path are exact paths relative to the package root.

  • Omit a key to load all of that type.
  • Use [] to load none of that type.
  • !pattern excludes matches.
  • +path force-includes an exact path.
  • -path force-excludes an exact path.
  • Filters layer on top of the manifest. They narrow down what is already allowed.

Enable and Disable Resources

Use omk config to enable or disable extensions, skills, prompt templates, and themes from installed packages and local directories. Works for both global (~/.omk/agent) and project (.omk/) scopes.

Scope and Deduplication

Packages can appear in both global and project settings. If the same package appears in both, the project entry wins. Identity is determined by:

  • npm: package name
  • git: repository URL without ref
  • local: resolved absolute path