ABOUT

A focused debugger for durable agent work.

MCP Task Trace is an independent, free developer utility for checking MCP Tasks extension snapshots and lifecycle transitions before integration testing.

Why it exists

A schema checker can inspect one task object, but it cannot explain why timestamps moved backwards, a terminal state reopened, or a completed task carried the wrong payload. This tool keeps task history across the pasted trace.

Editorial approach

Rules follow SEP-2663 and the current official Tasks extension schema. Migration pages distinguish the incompatible 2025 experimental API from the 2026 extension.

Limitations

The validator cannot prove durable storage, task ID entropy, authentication, routing or real polling behavior. It is not an official conformance certificate.

Open source

Source and issues are available on GitHub.