[Bug] High CPU usage at idle/prompt state

Bug Description
Claude code 2.1.29 uses close to 100% of my CPU while doing nothing (I'm at prompt). Actually, I've just started a new claude haven't executed anything yet and the CPU usage is 20+ percent.

Environment Info

• Platform: darwin
• Terminal: Apple_Terminal
• Version: 2.1.29
• Feedback ID: 4044b938-d75f-4830-ae82-cfa2e3a4500b

Errors

[{"error":"Error: LSP server plugin:rust-analyzer-lsp:rust-analyzer crashed with exit code 1\n    at <anonymous> (/$bunfs/root/claude:2142:21472)\n    at emit (node:events:98:22)\n    at #handleOnExit (node:child_process:520:14)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-02-02T06:45:39.770Z"}]