# R12 Atomic COMMAND-Binding Oracle-Initial Diagnostic

## Status

Completed negative on H100 job `725517`. This remains an isolation experiment,
never a native-reasoning claim.

## Hypothesis

The frozen Shohin WORLD compiler emits an imperfect hard packet. Canonical
initial-to-terminal edit labels therefore mix two causes: legal COMMAND edits
and attempted repairs of WORLD information absent from the packet. The atomic
editor receives only that packet plus COMMAND bytes. A repair whose source
fact was erased is unidentifiable and encourages memorization or invariant
fallbacks even when the fixed edit algebra is exact.

## Treatment

Keep commit `fb368f2`, atomic architecture, fixed executor, tokenizer,
protected checkpoint, reader, training rows, architecture seed 31, data seed
11, 1,000 updates, LR `3e-4`, clip `1.0`, action weight `1.0`, delta weight
`1.0`, and 32-batch evaluator unchanged. Change only training initial state
from autonomous to exact oracle WORLD packet. Canonical action labels then
represent COMMAND effects without unrecoverable WORLD repairs.

Inference interfaces remain hard and source-deleted. No QUERY, answer, oracle
program, host solver, verifier, or candidate selection reaches the editor.
Oracle state is a training-only diagnostic intervention and disqualifies the
run from native-reasoning promotion.

## Decision Gate

The useful diagnostic is held-out oracle-initial terminal transport: value,
relation, exact-packet, and COMMAND-sensitive movement must materially exceed
the autonomous-trained editor. Fully autonomous scores are recorded but
cannot be promoted. If oracle-initial transport remains invariant, reject the
frozen COMMAND residual-to-edit interface. If it improves materially, retain
atomic algebra and replace the frozen WORLD bottleneck with a jointly trained,
stage-separated WORLD compiler before retesting native composition.

Decision:
`separate_command_edit_learnability_from_irrecoverable_world_packet_errors_before_redesigning_the_whole_stack`.

## Result

The exact runtime completed all 1,000 updates on `evc49` in 11:55. Report
SHA-256 is
`071c1978ae7462e225fd016734f03022765613fa54aa9379db9ec9fd2bda204a`.
With oracle initial state, held-out terminal value accuracy fell from
74.344978% before optimization to 71.506550% afterward; exact terminal packets
remained `0/512`. With the autonomous initial state, value accuracy fell from
58.542576% to 55.431223%; exact packets also remained zero. Fully autonomous
WORLD and COMMAND strict and margin-1 gates remained zero.

The strong `autonomous_program_oracle_state` readout is an unchanged control:
it feeds the exact oracle terminal packet to the reader and was identical
before and after training. It is not evidence that the atomic editor learned.
The diagnostic therefore rejects the frozen layer-19 COMMAND residual as a
sufficient edit-binding interface. The fixed atomic algebra is still exact,
but its selector needs a less lossy source representation.

Decision:
`retain_the_exact_atomic_algebra_and_replace_frozen_residual_only_command_binding_with_a_direct_lexical_rail`.