chore(mcp): drop sourcemap output from the published build - #106
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Nothing consumes it: Node doesn't read `.map` for stack traces without `--enable-source-maps` (not set anywhere in the bin), and the error path (dispatch.ts, index.ts's log()) only ever surfaces `.message`, never `.stack`. Meanwhile the map file outweighs the code it maps (679KB vs 317KB) and ships to npm since `files` includes `dist`, roughly doubling install size for a benefit nobody can reach today. Matches the direct competitor (figma-developer-mcp) and the official reference server implementation, neither of which ship one.
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Summary
sourcemap: truefrompackages/mcp/tsdown.config.ts— nothing consumes the.maptoday: Node only reads sourcemaps for stack traces with--enable-source-maps(not set anywhere in the bin), and the error path (dispatch.ts,index.ts'slog()) only ever surfaces.message, never.stack.filesincludesdist, roughly doubling published package size for a benefit nobody can currently reach.figma-developer-mcp) and the official@modelcontextprotocol/server-filesystemreference implementation both ship without one. (@sentry/mcp-serveris the one counterexample, but that's because Sentry's own SDK has its own sourcemap-consuming pipeline for crash reporting — a consumer Figwright doesn't have.)minifywas evaluated too (tested: 317KB → 197KB) and deliberately left off — the same "can the user actually feel it" bar that killed the plugin'ssideEffects: falseproposal applies here, and minifying would also wreck the one fallback we still have (manually reading a reporteddist/index.mjs:LINEagainst the readable, unminified bundle).Test plan
pnpm build— dist now contains onlyindex.mjs(317KB), no.mappnpm typecheck && pnpm lint && pnpm format:check && pnpm knip— all passpnpm test— 172 files / 1212 tests pass