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Clatter SDK

Build AI agents that run locally.

Native local runtime for Node, Bun, and Deno. Sub-50ms cold starts via snapshot booting. Includes a time-travel debugger.

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Key features

  • Node / Bun / Deno compatible
  • Sub-50ms cold starts
  • Time-travel debugger
  • Sandboxed tool execution

Common issues

Installation fails on Windows+

Ensure you're on Node 20+. Windows requires the Visual C++ redistributable for the native snapshot binary.

How does the time-travel debugger work?+

Every tool call is recorded as a frame. Use `clatter replay <session-id>` to step backward and inspect state.