Three skills guiding developers through MCP server design:
- build-mcp-server: entry-point decision guide (remote HTTP vs MCPB vs local)
- build-mcp-app: interactive UI widgets rendered in chat
- build-mcpb: bundled local servers with runtime
Includes reference files for scaffolds, tool design, auth (DCR/CIMD),
widget templates, manifest schema, and local security hardening.
