MCP Server Development

MCP Server Development provides focused expertise for building Model Context Protocol servers that integrate seamlessly with Claude through three composable skills that form a complete development path. The build-mcp-server skill serves as the entry point, interrogating your use case to determine the appropriate deployment model among remote streamable HTTP servers, MCPB bundles, and local stdio servers, then routing to the specialized skill that matches your requirements. For servers that need interactive user interface widgets like forms, pickers, and confirmation dialogs rendered inline within chat conversations, the build-mcp-app skill guides implementation of MCP applications that work on both remote servers and MCPB bundles. When you need to package a local stdio server with its complete runtime environment so users can install without Node or Python dependencies, the build-mcpb skill handles bundling for servers that must access the local file system. Each skill includes reference documentation for components that extend beyond core instructions, covering authentication flows using DCR and CIMD patterns, tool description writing best practices, widget templates for interactive elements, manifest schemas, and security hardening techniques. The recommended default path for most cloud API integrations is remote streamable HTTP deployment, with the system providing inline scaffolding and upgrade notes where appropriate.