Two v0.0.5/0.0.6 regressions causing the plugin to fail at startup: 1. The orphan watchdog's process.ppid !== bootPpid check false-fires when the bun-run/shell wrapper exits or execs during normal startup and we get reparented to init — plugin self-terminates ~5s after launch. Stdin-close alone is the correct signal: the kernel closes the MCP pipe on any CLI death regardless of intermediate wrappers, so the ppid check was both unnecessary and harmful. (#1467; also the actual cause of #1459 item 3 and likely #1425.) 2. 'bun install --no-summary' in the start script writes to stdout, which is the MCP JSON-RPC transport. The harness sees non-JSON bytes during the handshake and drops the connection ('Failed to connect'). Redirect install output to stderr. (#1470; also explains #1425 on Windows.)
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.