Plugins

Plugins are packages of AI tooling that can be shared across projects and clients.

Plugin Structure

my-plugin/
├── skills/          # Cross-client skills
├── agents/          # Agent definitions (Claude, Copilot, Factory)
├── hooks/           # Hook definitions (Claude, Copilot, Factory)
├── hooks.json       # Copilot plugin hook declaration (optional)
├── commands/        # Commands (Claude, OpenCode)
├── .github/         # Project-scoped GitHub overrides (Copilot, VSCode)
│   ├── copilot-instructions.md
│   ├── instructions/    # Pattern-based instructions
│   ├── prompts/         # Prompt files
│   ├── agents/          # GitHub agent overrides
│   └── hooks/           # GitHub hook overrides
└── AGENTS.md

Note

At project scope, Copilot plugin hook declarations from hooks.json or hooks/hooks.json are combined in the AllAgents-owned .github/hooks/allagents.json file. Each entry receives its plugin-specific COPILOT_PLUGIN_ROOT, so declarations continue to resolve files from the plugin package. The generated file is tracked independently from other repository hook files. Package metadata under .github/plugin/ is not copied into the project overlay.

This does not require a marketplace manifest or plugin.json. Direct local and GitHub plugin sources continue to use conventional directory discovery. If a plugin has no supported hook declaration, its other artifacts still sync and it adds no entries to allagents.json. AllAgents warns and omits a declaration that cannot be read or parsed as JSON or lacks the version-1 hooks object envelope. A declaration with disableAllHooks: true adds no entries; otherwise, a non-array event value also warns and omits the declaration. AllAgents does not fully validate each hook entry. Skipping a declaration does not reject the plugin or itself suppress other eligible artifacts—including repository hook files—or valid declarations from other plugins. Ordinary client selection and exclusion settings still apply.

At user scope, root hooks/ entries sync to the client’s user hook directory. Repository hooks under .github/hooks/ stay project-scoped and are not copied to ~/.copilot/hooks/. Potential copies from older versions are left untouched and reported for manual review because their ownership was not tracked.

Marketplace Component Boundaries

AllAgents recognizes marketplace manifests at both .claude-plugin/marketplace.json and .github/plugin/marketplace.json. The GitHub Copilot location takes precedence when a repository contains both.

A marketplace entry with strict: false defines the complete set of plugin components. For example, this entry syncs the repository’s top-level skills without treating its top-level hooks or .github/ development configuration as plugin artifacts:

{
  "name": "skills-only",
  "source": "./",
  "strict": false,
  "skills": ["./skills/"]
}

Without strict: false, AllAgents retains conventional plugin-directory discovery for compatibility. Top-level hooks/ remains the portable hook location; .github/ represents repository-scoped GitHub content. Component kind filtering currently uses AllAgents’ conventional root directories, so custom marketplace component paths are not yet remapped.

Duplicate Skill Handling

When multiple plugins define skills with the same folder name, AllAgents automatically resolves naming conflicts:

Conflict Type	Resolution	Example
Same skill folder, different plugins	{plugin}_{skill}	plugin-a_coding-standards
Same skill folder AND plugin name	{org}_{plugin}_{skill} (GitHub)	acme_my-plugin_coding-standards
Same skill folder AND plugin name	{hash}_{plugin}_{skill} (local)	a1b2c3_my-plugin_coding-standards

Skills with unique folder names keep their original names unchanged.

Example:

workspace.yaml

plugins:
  - ./plugin-a    # has skills/coding-standards/
  - ./plugin-b    # has skills/coding-standards/
  - ./plugin-c    # has skills/testing/

After sync:

.claude/skills/
├── plugin-a_coding-standards/   # renamed (conflict)
├── plugin-b_coding-standards/   # renamed (conflict)
└── testing/                     # unchanged (unique)

Note

This rename-based deduplication applies to plugin skills (copied to .claude/skills/). Repository skills embedded in the WORKSPACE-RULES index use a different strategy — they pick a single winner rather than keeping all copies. See Repository Skill Discovery for details.

Adding Skills

You can add a specific skill from a GitHub repo without installing the full plugin first:

# Add a skill by name, specifying the plugin source
allagents skill add reddit --from ReScienceLab/opc-skills

# Or pass a GitHub URL directly
allagents skill add https://github.com/owner/repo/tree/main/skills/my-skill

This installs the plugin and enables only the specified skill. See the CLI reference for all source formats.

Disabling Individual Skills

You can disable specific skills from a plugin without uninstalling the entire plugin:

# List all skills with their status
allagents plugin skills list

# Disable a skill
allagents plugin skills remove brainstorming

# Re-enable a skill
allagents plugin skills add brainstorming

Disabled skills are stored in disabledSkills in workspace.yaml and are excluded from sync:

plugins:
  - superpowers@official

disabledSkills:
  - superpowers:brainstorming

When a skill exists in multiple plugins, use --plugin to specify which one:

allagents plugin skills remove coding-standards --plugin my-plugin

Plugin Spec Format

Plugins use the plugin@marketplace format:

Format	Example
Well-known	code-review@claude-plugins-official
owner/repo	my-plugin@owner/repo