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@mattral/collector

v1.2.2

Published

Health checking and traffic-observing proxy collectors for MCP servers

Readme

@mattral/collector

Health checking and traffic-observing proxy collectors for MCP servers — the data-collection layer of mcp-reliable.

npm install @mattral/collector

What's in it

  • HealthChecker — periodic reachability + latency checks against a registered server (initialize handshake + tools/list), with a configurable connection timeout.
  • StdioProxyCollector — sits transparently between a real MCP client and a real stdio server, forwarding every message unmodified while recording each execution and running drift detection (schema, output-shape, statistical/latency) against real traffic.
  • extractOutputPayload / extractErrorMessage — correctly unwrap MCP's content block convention to get at a tool's actual output or error text, instead of the transport-level envelope around it.

Learn more

See the mcp-reliable GitHub repo, particularly docs/architecture.md for how health checks and the proxy each observe a server differently, and docs/decisions/ for the reasoning behind the extraction helpers above.

License

MIT