Principlev1

Before deploying a new schema, verify it correctly handles

Before deploying a new schema, verify it correctly handles every case the old schema handled successfully—a schema update that drops coverage of previous successes is a regression, not an upgrade.

Why This Is a Principle

Derives from Schemas as Knowledge Organization Structures (schemas organize knowledge) and The performance of an agent is bounded by the accuracy of (agent bounded by world model accuracy). This is the core backwards compatibility principle—WHAT standard a new schema must meet. The physics correspondence principle parallel makes this clearly prescriptive rather than descriptive. Extremely strong principle.

Source Lessons

L-0309

Backwards compatibility in schema evolution

Sometimes you need the new schema to handle cases the old schema covered.

Connections

Derived From (2)

AxiomSchemas as Knowledge Organization Structures AxiomThe performance of an agent is bounded by the accuracy of

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