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Stop vibe-debugging.
Plug Claude into your app's actual errors.
AppSignal's MCP server hands Claude, Cursor, or Zed your real errors, traces, and the deploy that shipped them. AI writes the fix; you review the diff.
Hierarchical state machines implementation in JavaScript heavily inspired by the QP active object framework, see http://www.state-machine.com/. See the README file for details.
The implementation is JavaScript engine agnostic and works both in browsers and in NodeJS.