L87 · Operator-lane regression-only — NEO
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governance doctrine

L87 Operator-lane regression-only

codified 2026-04-26 · V129-S3 · 5 references

Codified as Rule 13.1.c. No progress without prior parity. Mutation requires baseline-bit-identical regression evidence.

Authority

This lesson is recorded as doctrine doctrine on the governance surface, sealed at stage V129-S3. Mutations of the rules it governs require operator-directive trace plus verifier sign-off (Rule 13.1.c).

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L86 · Single-source-of-truth governance
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L88 · Whole-system retirement audit