Prune the Summary, Not the History: Source-Judged Compaction for Long-Horizon Agents

arXiv:2610.20927 · cs.CL · Submitted 2026-10-14 · Read on arXiv

cs.CL

Submitted: 2026-10-14

Updated: 2026-10-14

Comments: Uses Jev, a non-generative decision model, as the source judge. Code: https://github.com/GuanghuiMin/sjc

License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/

Terminology

• Source-Judged Compaction — 2× in this paper
• Trace — 1× in this paper · explained in 2 episodes

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