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ToC Tester

Programme design and testing

◐ BETA

Theory of change, run as a simulation.

A simulation engine and AI critic for Theories of Change. Build a causal map, run scenarios, and get critique anchored in your project's own evidence before the design is locked.

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ToC Tester screenshot 1: Workshop canvas with the Critical Friend panel generating unintended consequences
Workshop canvas with the Critical Friend panel generating unintended consequences

Capabilities

What it does.

Capabilities listed here are present in the current build. Performance figures, model cards and annotation protocols available under NDA.

  • ·Causal simulation via Fuzzy Cognitive Mapping. You can run the theory, not just draw it
  • ·Unintended consequences as a first-class node type
  • ·Critical Friend: AI critique anchored in a project-specific evidence corpus
  • ·Scenario testing: clamp an assumption and see how the impact cascades
  • ·Sensitivity analysis across all causal edges
  • ·Workshop-grade UI with auto-layout, undo/redo and a presentation mode
Built on
Next.js·React Flow·FastAPI·NumPy FCM engine·Supabase·ChromaDB·Claude