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gn-tracing-mcp

gn-tracing-mcp

Official
by gnasdev
OverviewSchemaSourceRelated ServersDiscussionsAdmin
TypeScript
Hybrid

GN Tracing OSS

Open-source companion to GN Tracing — a browser extension that records a tab (video, console, network, WebSocket) into a shareable replay.

This repo carries the parts of the project that are useful on their own:

Path

What it is

mcp/

gn-tracing-mcp — MCP server that lets a coding agent read a replay link or a gn-tracing-*.zip package: console errors with source-mapped stacks, failed requests, and the user timeline.

packages/replay-core/

@gn-tracing/replay-core — runtime-agnostic parser for recording packages (zip reader, artifact models, agent summary, query, report).

src/shared/

Shared helpers the replay-core tests compare against, synced from the main repo.

Quick start

cd mcp
npm ci
npm run build   # → dist/gn-tracing-mcp.mjs

Wire node dist/gn-tracing-mcp.mjs into your MCP client — details in mcp/README.md.

Related MCP server: FlowLens MCP

Tests

npm install     # root dev deps (vitest)
npm test

Tasks

Task wraps the same commands:

task install     # npm ci for the root and mcp/
task check       # typecheck + tests + MCP bundle, in one go
task test        # vitest only
task build       # mcp/dist/gn-tracing-mcp.mjs
task dev         # rebuild the MCP bundle on every source change

License

GPL-3.0-or-later. See LICENSE.

Tool Schema Changelog

Recent tool additions, removals, and schema changes observed during successful MCP inspections.

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    Resources

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    • FlowLens MCP Server

      magentic
      A
      license
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      quality
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      Enables coding agents to access recorded browser flows (user actions, network, console, etc.) for debugging and regression testing without reproducing issues.
      109
      Apache 2.0

    • FlowLens MCP

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      Enables coding agents to inspect recorded browser flows—including user actions, network activity, console output, storage, DOM events, and screen recordings—for debugging, bug reporting, and regression testing without reproducing the issue.
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