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Research paperAgents & Tool Use · Reinforcement Learning · Reasoning & Planning2 sources · Oct 6, 2026

Self-Retrospection Distillation: Turning Post-hoc Experiences into Prior Foresight

Reinforcement learning with verifiable rewards (RLVR) turns agent experience into learning signals primarily through scalar outcome rewards after interaction.

Key points

  • For group-relative objectives, however, this signal vanishes when all rollouts receive the same reward, even though their trajectories may reveal useful information about what the task requires and how the agent fails.
  • We ask a complementary question: can hindsight teach an agent what it could have anticipated before acting?
  • We introduce prospective learning, which uses post-hoc experience to supervise foresight predictions from the pre-interaction view, and instantiate it with Self-Retrospection Distillation (SRD).
  • Our results suggest that post-hoc agent experience is useful not only for evaluating or improving behavior, but also for shaping predictive representations before available interaction.

Sources (2)

Extractive summary: sentences quoted from the sources.