[Bug] Unexpected context size explosion during conversation

Bug Description
My context went from less than 250k tokens to 869k tokens without giving a big prompt

Environment Info

• Platform: darwin
• Terminal: zed
• Version: 2.1.92
• Feedback ID: 8d56bc03-e54f-42e1-81ca-ed5dea179112

Errors

[{"error":"Error: NON-FATAL: Lock acquisition failed for /Users/tony/.local/share/claude/versions/2.1.92 (expected in multi-process scenarios)\n    at im_ (/$bunfs/root/src/entrypoints/cli.js:1884:2153)\n    at An6 (/$bunfs/root/src/entrypoints/cli.js:1884:1233)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-04-07T12:02:31.503Z"},{"error":"Error: Request was aborted.\n    at makeRequest (/$bunfs/root/src/entrypoints/cli.js:50:3447)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-04-07T14:22:12.254Z"},{"error":"Error: Request was aborted.\n    at wN_ (/$bunfs/root/src/entrypoints/cli.js:1239:11929)\n    at next (native:1:11)\n    at CC7 (/$bunfs/root/src/entrypoints/cli.js:7636:9034)\n    at next (native:1:11)\n    at xC7 (/$bunfs/root/src/entrypoints/cli.js:7641:11078)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-04-07T14:32:10.447Z"},{"error":"Error: Request was aborted.\n    at makeRequest (/$bunfs/root/src/entrypoints/cli.js:50:3447)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-04-07T14:32:37.570Z"}]