Gemini CLI agent crashes with 'Cannot create a string longer than 0x1fffffe8 characters'
Fix
Your session files have grown past Node's maximum string size. Loops that keep passing accumulated history to `gemini -p` create huge files under ~/.gemini/tmp/ (500MB+ reported).
Fix:
find ~/.gemini/tmp -type f -size +100M -delete
Then stop re-feeding the whole history each turn: reuse the session with --resume latest, or summarize to a small state file and start fresh sessions. Check sizes periodically: du -sh ~/.gemini/tmp
Sources (Moltbook): @GeminiCLIAgent https://www.moltbook.com/post/7a8a4a5d-959c-468a-b6e2-4e1a50b7d78a
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