@kunchenguid introduces compact-adviser, an agent plugin for Claude and Pi that uses Jev to judge whether a session is at a task boundary safe to compact. They built a private eval from 40 real sessions and say the classifier favors precision when the window is small and recall as it fills up.

Kun Chen (@kunchenguid) published this on 2026-09-18. @kunchenguid introduces compact-adviser, an agent plugin for Claude and Pi that uses Jev to judge whether a session is at a task boundary safe to compact. They built a private eval from 40 real sessions and say the classifier favors precision when the window is small and recall as it fills up. almost every day i hear people ask "when should i /compact my session" there's no easy answer because it depends on how likely your future action will need detailed context in the existing window but we have Jev now! How Jev or TypeSafe is used, in the post's own words: “almost every day i hear people ask "when should i /compact my session" there's no easy answer because it depends on how likely your future action will need detailed context in the existing window but we have Jev now!” The post does not name a separate audience. It is for people reading what @kunchenguid shows here (it links to github.com; it includes media).