{
  "created": "2026-09-27T23:39:20.340506+00:00",
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    "protocol": "v2.15-target-complete-direction-development",
    "parent_seeds": [
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    "people": [
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    "tuning_steps": 256,
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    "tuning_person": 0,
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    "precision": "FP32 forwards/gradients; FP64 CE/KL reductions, representation eigendecomposition and dual solves; TF32 off",
    "solver": "Rank-8 unbiased randomized generalized Gauss-Newton sketch, refreshed every 16 attempted updates, damping 0.01; exact representation curvature added using 16 CG iterations. This is a diagnostic approximation, not an author implementation. Refresh immediately following a rejected update.",
    "constraint": "Sequential linearized original-distance constraint with interior restoration, followed by actual parent-relative distance acceptance; projected actual Adam increments for strict representation nullspace. Feasible interior-restoration steps may increase data objective at most 5% while strictly decreasing distance; logged as solver work.",
    "soft_objective_matching": "Penalty selected jointly across both solvers for each protection object; each solver's learning rate selected on E/V.",
    "selection": "Sum V broken across six tuning cases then mean E NLL; never U or combination D.",
    "rank_threshold": "1e-10 relative to largest eigenvalue of FP64 representation covariance",
    "hard_tolerance": "1e-10 normalized representation distance at strict zero; otherwise 1e-8 + 1e-5 * budget",
    "line_search_max": 10,
    "consecutive_rejection_stop": 10,
    "notes": "Shared batching accelerates independent runs. Batch wall time includes evaluation; component operation counts and padding cost are retained, and serial timings are required before claiming comparative wall-clock efficiency. Checkpoints indexed by attempts with accepted counts retained."
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