Local-path plugins (source is a string like "./plugins/foo" in
marketplace.json) without a manifest version cache at
~/.claude/plugins/cache/{marketplace}/{plugin}/unknown/ forever.
The cache check in claude-cli's copyPluginToVersionedCache sees
pathExists(.../unknown/) → true → skips re-extraction, even after
the marketplace content updates. Users are stuck with stale plugin
files until they manually delete the cache.
Adding "version": "1.0.0" fixes this because calculatePluginVersion
reads the manifest from the freshly-synced marketplace tree (not the
stale cache), and manifest.version is priority #1 in version
resolution. New version → new cache path → cache miss → re-extract.
This is preferable to the GCS-SHA fallback approach
(anthropics/claude-cli-internal#24773) because:
- Per-plugin granularity: only bumped plugins re-extract, not all
27 on every marketplace push
- No disk accumulation from unrelated marketplace churn
- Fixes both the runtime loader path AND the migration path
(manifest.version is priority #1 in both)
- No claude-cli code change needed
Remote-sourced plugins (github/git/url) already get a git SHA as
their version and are unaffected.
Claude Code Plugins Directory
A curated directory of high-quality plugins for Claude Code.
⚠️ Important: Make sure you trust a plugin before installing, updating, or using it. Anthropic does not control what MCP servers, files, or other software are included in plugins and cannot verify that they will work as intended or that they won't change. See each plugin's homepage for more information.
Structure
/plugins- Internal plugins developed and maintained by Anthropic/external_plugins- Third-party plugins from partners and the community
Installation
Plugins can be installed directly from this marketplace via Claude Code's plugin system.
To install, run /plugin install {plugin-name}@claude-plugins-official
or browse for the plugin in /plugin > Discover
Contributing
Internal Plugins
Internal plugins are developed by Anthropic team members. See /plugins/example-plugin for a reference implementation.
External Plugins
Third-party partners can submit plugins for inclusion in the marketplace. External plugins must meet quality and security standards for approval. To submit a new plugin, use the plugin directory submission form.
Plugin Structure
Each plugin follows a standard structure:
plugin-name/
├── .claude-plugin/
│ └── plugin.json # Plugin metadata (required)
├── .mcp.json # MCP server configuration (optional)
├── commands/ # Slash commands (optional)
├── agents/ # Agent definitions (optional)
├── skills/ # Skill definitions (optional)
└── README.md # Documentation
License
Please see each linked plugin for the relevant LICENSE file.
Documentation
For more information on developing Claude Code plugins, see the official documentation.