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The study proposes that an agent's self-evolution is only auditable when constrained within a runtime harness, where harness refers to three mutable surfaces—instruction text, tool-calling logic, and primitive composition—while model weights remain fixed at all times.
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50%
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10/9/2026
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Related Claims
UnverifiedIn language model agent systems, a harness refers to the layer of code surrounding the model that is responsible for organizing prompts, calling tools, managing context, and controlling execution flow.77% similarUnverifiedCertain harness strategies only take effect when the model has sufficiently strong instruction-following capabilities, making models and frameworks mutually dependent.74% similarUnverifiedThe Self-Evolving Harness framework proposed in the paper has the same frozen model act as both the solver and the proposer, editing and running its own surrounding code.72% similarUnverifiedThe Harness architecture marks a paradigm shift in agent engineering from being driven by model capability to being driven by engineering reliability.71% similarUnverifiedThe harness layer decouples decision-making from execution, allowing developers to insert security logic such as permission verification, behavioral auditing, and rate limiting without modifying the underlying model.71% similar
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