fix(tui): reduce default transcript window to keep long sessions responsive#1265
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…onsive Lower KIMI_CODE_TUI_MAX_TURNS default from 50 to 15 and KIMI_CODE_TUI_HYSTERESIS from 10 to 5 so the TUI keeps fewer transcript turns in long sessions.
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Related Issue
No prior issue — this is a small tuning change to the TUI sliding window.
Problem
In long sessions the TUI keeps up to 50 transcript turns, and only trims once the count passes 60 with the default hysteresis. That accumulates a large number of rendered components and hurts responsiveness. Trimming only touches the TUI display layer, so the agent's underlying conversation context is unaffected.
What changed
Lower the sliding-window defaults so fewer transcript turns are retained on screen:
KIMI_CODE_TUI_MAX_TURNS: 50 -> 15KIMI_CODE_TUI_HYSTERESIS: 10 -> 5Both can still be overridden via their environment variables. Existing tests already cover the trimming logic, so this default-value change adds no new test.
Checklist
gen-changesetsskill, or this PR needs no changeset.gen-docsskill, or this PR needs no doc update.