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13 context engineering lessons learned from running long-term agents across large repos

Hi all, saw several threads discussing how quickly Claude Code and terminal agents degrade when working across long multi-hour sessions or multi-package codebases. The failure mode is almost always the same: after turn ten, the agent starts forgetting earlier constraints, hallucinating file paths,…

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  1. 2026-10-22 15:06 · r/PromptEngineering
    13 context engineering lessons learned from running long-term agents across large repos

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