By default Claude Code keeps your session transcripts for 30 days. After that a background sweep deletes them without showing a message, and the old session disappears from the /resume list.
Here's the one settings line that changes it.
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Get the full setup steps + the copy-paste setup prompt
The rest of this guide (4 more sections, 2 copy-paste prompts) opens right here. The setup prompt, one paste into Claude that sets it all up, comes by email only. Use your real address.
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