component-shape-mcp

Typed JSON Schema, strict argument decoding, shared tool registries, structured results, composed servers, and stdio support for Rust MCP integrations.

Most component authors should start with component-shape or component-shape-gpui. Add this crate when an application needs to expose component metadata or typed Rust inputs through MCP.

Add the dependency

[dependencies]
component-shape-mcp = "0.2"

The default features include the McpJsonSchema and McpToolInput derives. Disable default features when an integration only consumes coarse McpInput metadata or implements its schema contracts manually.

Register reusable definitions and handlers in McpToolRegistry. Install that registry in McpServer::from_tool_registry when the application builds its MCP tool surface independently. Registry clones share handler allocations. MCP servers retain the registry for their host lifetime. Individual tool completion never implies shutdown; a host that wants one request terminates explicitly after receiving its result.

Learn more

• MCP integration guide
• Schemas and decoding
• Tools and results
• Servers and stdio
• API documentation