A single ETIMEDOUT/ECONNRESET/DNS failure during long-polling rejected bot.start(); the catch block returned and polling stopped permanently. The MCP server process stayed alive (stdin keeps it running), so outbound reply/react tools kept working — but the bot was deaf to inbound messages until a full restart. Users see 'typing...' then nothing, indistinguishable from the harness-side gate bug. Now all errors retry with the same capped backoff (max 15s). attempt resets to 0 in onStart so backoff doesn't accumulate across a long-running session. Co-authored-by: Claude <noreply@anthropic.com>
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.