Preflight

Preflight validates your MCP server artifacts against the actual publishing requirements of the MCP Registry, Smithery, and npm before you submit. It exposes a single check_publish_readiness tool that parses your server.json, package.json, smithery.yaml, and other config files, then returns actionable findings tagged with severity, evidence level, and links to the specific directory documentation each rule comes from. Every blocker includes the exact fix. It's pure validation with no rewrites, no LLM calls, and no runtime probing. Reach for it when you're packaging a server for distribution and want to catch policy violations like missing mcpName fields or malformed transport configs before hitting submit. Runs over streamable HTTP or as a direct REST API.