Self-improving software architecture in practice

Self-improving software architecture should turn recurring agent failures into controlled, versioned changes rather than relying on temporary session memory, with corrections placed in the appropriate artifact such as application code, tests, tool definitions, repository instructions, or reusable workflow skills. Factory’s software-factory model emphasizes connecting engineering signals to implementation, validation, deployment, and monitoring while preserving model independence, sovereignty, and continual learning. Effective improvement requires retaining both failure evidence and separate preventive guidance, assigning ownership and approval paths, maintaining rollback capability, and limiting instructions to their intended scope. The approach also separates observed evidence from authority to act, using configured security controls for permissions, credentials, network access, and enforcement boundaries rather than allowing agents to expand their own powers. Changes should be evaluated against the original incident and broader held-out scenarios, with blocked tests recorded accurately rather than treated as successes. The article distinguishes documented internal research practices from product guarantees and recommends beginning with small, reviewable improvements that specify an evidence source, changeable artifact, acceptance test, approver, and reversible prior version.

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