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Nice new paper on continuous improvement of AI agents from Princeton and Meta
Finds that agents repeat fewer mistakes when each fix is saved as a LoRA adapter and reused on similar tasks.
Agents can fix a mistake within a session, then often repeat it in the next one. Notes in context get forgotten, and full fine-tuning is costly and can disrupt other skills.
With Self-Direction, a failing agent reflects on its run and trains the lesson into a LoRA adapter about 0.02% of the model's size. A router later loads the closest adapter when the agent fails a similar task.
With Qwen3.6-27B, task success on GAIA rose from 38.8% to 55.8%, beating in-context reflections and a Skills.md file. Across 185 earlier mistakes, 67.3% of repairs still worked by the third encounter, against 42.9% for plain retrying.
If your agents keep making the same mistakes, save each fix as a small adapter they can reload, not only as prompt notes.