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jevharness

tianyucodings/jevharness

LLM-authored task-specific Jev harnesses with optional full-trajectory reward reflection and GEPA evolution.

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Official code for AHE — Agentic Harness Engineering: observability-driven automatic evolution of coding-agent harnesses (concurrent work with meta-harness). Lifts Terminal-Bench 2 pass@1 69.7%→77.0% over 10 iterations, beats Codex/ACE/Training Free GRPO; frozen harness transfers to SWE-bench-verified and 3 other base models.

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Recursive Experiential–Working Memory Evolution for Long-Horizon Agent Harnesses

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The open-source software and hardware platform for domain-specific harnesses. Run Claude Code, Codex and every coding agent across your machines, make them specialists in CAD, PCBs, robotics and games, and keep them on your desk with the open-hardware Harness device.

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codejunkie99

keel

Local-first macOS coding workspace with local Laya and optional Jev decision selection

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