CalibForge RL ablations: 5,377 tasks after build/setup validation, and 5,310 after additionally requiring valid no-op reward 0. The second variant holds out 67 tasks: 9 archived cases and 58 unresolved verifier results.
| Variant | Tasks | Stage 3 | Stage 5 |
| --- | ---: | --- | --- |
| `calibforge/ablations/stage3/tasks.parquet` | 5,377 | Passed | Not an acceptance gate |
| `calibforge/ablations/stage3_stage5/tasks.parquet` | 5,310 | Passed | Passed |
Includes the full validation run and reruns of repaired tasks. Three verifiers now fail a collected assertion for missing required output files or pandas instead of stopping during collection/setup; their original checks are preserved when the prerequisite is present. These three payload differences are recorded in `variants.json`, so this comparison is not a pure selection-only ablation.
The nine archived stage-5 cases comprise four no-op reward failures, one memory-exhausting verifier, and four upstream images missing Python despit…
