[Bug] /resume loads incomplete session context despite full file on disk

I've now reproduced the issue with precise measurements:

Test performed today (Feb 2):

1. Worked session to 97% context (194.38k/200k tokens, 606 intents)
2. Used /exit
3. Used /resume to return to same session
4. Context dropped to 11% (22.84k/200k tokens)
5. Assistant had no memory of conversation ("What are we working on?")

Session file verified:

• File size: 6.75MB (complete)
• 866+ message lines in JSONL
• No truncation, full content preserved on disk
• Only summary entry: "User Exit Session" at end

Key finding: The session file contains the full conversation, but /resume only loads ~11% of it. This is consistent across multiple large sessions (I have 44
sessions totaling 80MB in ~/.claude/projects/).

This appears to be a resume loading issue, not a storage issue. Happy to provide session files or additional logs if helpful.

Version: 2.1.29
OS: Ubuntu 24.04 (Linux 6.8.0-90-generic)

Best,
Corey