Equation 21 · OpenAI Codex as a Software-Engineering System: Models, Harnesses, and Evidence
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Symbol f
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What the article says around this equation
Long sessions pose a lossy-state problem. When a transcript exceeds context capacity, a harness may compact earlier interaction into a summary. If =f(,,) compresses state, reliability depends on whether f preserves commitments, failed hypotheses, file identities, and unresolved constraints. More context tokens do not remove this requirement; they postpone it.
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