This skill should be used when the user asks to "build an MCPB", "create a desktop extension", "package an MCP server", "create an mcpb file", "distribute an MCP server", "bundle my MCP server", "create a local MCP extension", "make an MCP Bundle", or needs guidance on packaging a local MCP server for single-click installation in Claude Desktop. Covers the full workflow from project setup through packing, testing, and signing.
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