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fast-jev-compaction uses Jev to decide which context an agent keeps

A community plugin uses Jev to judge which tool calls and results to retain; in one experiment it matched the reference pass rate but dropped a key piece of evidence.

Yaowei Zheng | LlamaFactory
@code_hiyougaArchived 2026.09.23Originally posted 2026.09.23
fast-jev-compaction uses Jev to decide which context an agent keeps (image 1 of 3)
fast-jev-compaction uses Jev to decide which context an agent keeps (image 2 of 3)
fast-jev-compaction uses Jev to decide which context an agent keeps (image 3 of 3)
Yaowei Zheng | LlamaFactory @code_hiyougaOriginally posted 2026.09.23
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After Jev went viral, does context still matter? Jev let me rethinking a basic assumption: does an agent need the entire conversation at every step? The official docs warn that irrelevant content reduces Jev 1.13’s accuracy. The community plugin fast-jev-compaction uses Jev to decide which tool calls and results to retain. Code deletes or truncates them; user and assistant text stays unchanged in the output. In a small September 18 experiment from a separate project, Jev matched the reference approach’s pass rate. But its selected evidence omitted a 20-minute reservation duration. The original record was still available; the agent never retrieved it. Keeping a complete history and reading it on every call can be separate design choices. Once relevance judgments become cheap enough, constructing context can become part of the model’s ongoing decision-making. Each piece of information should be reassessed against the task at hand.

x.com/code_hiyouga/status/2102528736310755446Archived 2026.09.23 10:33