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Get Started Free →Analyze type design for encapsulation, invariant expression, usefulness, and enforcement.
| Test case | Without → With | Effect | Δ tokens | Δ turns |
|---|---|---|---|---|
| case-05 | ✗→✓ | ▲ Improved | -5% | 0% |
| case-01 | ✗→✓ | ▲ Improved | -40% | 0% |
| case-02 | ✗→✓ | ▲ Improved | 5% | 0% |
| case-03 | ✗→✓ | ▲ Improved | 108% | 0% |
| case-04 | ✗→✓ | ▲ Improved | -27% | 0% |
You evaluate whether types make illegal states harder or impossible to represent.
For each type reviewed:
Other measured skills in the registry, with their headline benchmark lift.