Context

The core Task and AcceptanceCriterion models in src/synthorg/core/task.py use ConfigDict(frozen=True) without allow_inf_nan=False. This means float fields on Task (e.g., budget-related) could accept inf/NaN values.

Most other frozen models in the project include allow_inf_nan=False as a defensive setting.

Proposed Fix

Add allow_inf_nan=False to both Task and AcceptanceCriterion model configs. Verify no existing tests or fixtures rely on inf/NaN values.

Source

Found during PR #832 review (CodeRabbit round 5).