# PARS-FEBP Benchmark Preregistration

- Benchmark version:
- Date frozen:
- Frozen by:

## System

- Model:
- Model configuration:
- Tool availability:
- Execution environment:
- Resource limits:

## Task bank

- Task bank identity/hash:
- Development cohort:
- Held-out cohort:
- Negative-transfer or contamination cohort:

## Conditions

- A - Naive:
- B - Explicit exact-binary:
- C - PARS-FEBP Minimal:
- D - PARS-FEBP Strict/Maximum Assurance:
- Exact frozen prompt text or identities:

## Procedure

- Retry policy:
- Repair policy:
- Exclusion rules:
- Verifier identity/hash:
- Scoring implementation identity/hash:
- Evaluator independence controls:

## Endpoints

- Primary endpoint: CCEBS
- Secondary metrics:
- F1-F10 failure taxonomy:
- Work/cost accounting:

## Ablations

- ABL-1 through ABL-8 included:
- Predicted failure for each ablation:
- Severe-regression vetoes:

## Decision rule

- Promotion threshold:
- Tie rule:
- Inconclusive rule:
- Known limitations:
