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statechart

Check a TLA+ model of a system that moves between states, such as a product flow, a protocol, or a service, and draw it as a Mermaid statechart. The report gives the shortest path to each state that breaks a rule. Use for /statechart, or to show a bug as a path through states.

skills/statechart/SKILL.md

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# Statechart

Read [the pstack-t3 runtime](../pstack-runtime/SKILL.md) before spawning workers, choosing models, scheduling, or isolating work. It maps those steps onto T3's orchestrator tools.

The chart shows how a system moves between states, in the words of the person who reads it. That person, the reader, decides whether the behavior is right.

## Run

Work in a scratch folder outside the repo. Write a TLA+ spec and its config. Then run:

```sh
<skill dir>/scripts/statechart SPEC.tla [--config FILE] [--view FILE] [--out DIR]
```