Root cause analysis: terminal scrolls to top during agent execution (Ink cursorUp+eraseLines)#34798

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cruzlauroiii wants to merge 10 commits intoanthropics:mainfrom

cruzlauroiii:fix/windows-scroll-to-top

Commits on Mar 16, 2026

Add root cause analysis for scroll-to-top bug during agent execution
lauro-cruz
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Add cli.js patch and PowerShell fix script for scroll-to-top bug
lauro-cruz
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Rename patch, add actual diff with before/after lines
lauro-cruz
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Update scroll fix to v2: stateful stdout.write interceptor
lauro-cruz
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Update scroll fix: add render throttle + disable synchronized update
lauro-cruz
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v3: simplify to render throttle only (16ms → 1000ms)
lauro-cruz
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v5: buffer renders during active work, flush on user input or idle
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v6: stdin-only flush, no timer, no auto-flush
lauro-cruz
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v7: replay ALL buffered frames on flush (fixes outdated screens)
lauro-cruz
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Final: Ctrl+6 freeze toggle (replaces v1-v10 scroll fixes)
lauro-cruz
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