# training_evaluation.py
def promotion_readiness(checkpoint, runs, evaluations):
    successful = [r for r in runs if r["checkpoint"] == checkpoint and r["exitCode"] == 0]
    passing = [e for e in evaluations if e["checkpoint"] == checkpoint and e["passed"]]
    held_out = any(e.get("heldOut") for e in passing)
    independent = any(e.get("independentReview") for e in passing)
    return {"promotionCandidate": bool(successful and passing and held_out and independent),
            "accepted": False,
            "truth": {"trainingReceiptIsCapabilityProof": False,
                      "evaluationPassIsProductionAcceptance": False}}