Unverified50% confidenceFactExact time
After running multiple ticket-to-PR agents, a team concluded that the main reason coding agents perform poorly lies in the external framework (harness), not model capability.
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10/12/2026
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UnverifiedTypical harness problems the team found when running ticket-to-PR agents include coarse context window management, lack of robustness in tool calls, and sparse feedback signals.79% similarUnverifiedWell-known developer Lynch raised the question that coding agents perform poorly mainly not because of the model itself, but because of the external framework (harness) built for the agent.79% similarUnverified能力不够的模型会因为要处理Harness的优化任务而分散本身的交互能力，导致整体表现下降72% similarUnverifiedModels misread tools listed as 'nice-to-have' in job postings as 'actively being procured,' which is a case of semantic intensity misjudgment.71% similarUnverifiedThe effectiveness of a coding agent is the product of the model and the harness; ignoring the harness and purely pursuing model upgrades is like putting a stronger engine in a race car while ignoring the gearbox and tires.70% similar
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