When your production app throws errors with stack traces pointing to minified JavaScript at column 47821, this server maps them back to the original TypeScript file, line, and column using source maps. It exposes three tools: retrace_stack decodes the full trace, retrieve_code_context shows the surrounding source lines with a column pointer, and audit_sourcemap_match validates that your dist directory's .map files are present and point to sources that actually exist. You point it at a stack trace and your dist folder, and it tells you which TypeScript file and line crashed instead of leaving you staring at obfuscated bundles. Useful when debugging production incidents or helping an agent understand what actually failed.
claude mcp add --transport stdio vola-trebla-sourcemap-retrace-mcp uvx sourcemap-retrace-mcp