[Bug] Anthropic API Error: Stream idle timeout - partial response with no retry mechanism

Bug Description
ultraplan got stuck. API Error: Stream idle timeout - partial response received. Why do it on the cloud if it doesn't work and I can't retry?!

Environment Info

• Platform: darwin
• Terminal: ghostty
• Version: 2.1.92
• Feedback ID: e5fc506a-c720-4e70-8295-6076c2e83ccb

Errors

[{"error":"Error: File does not exist. Note: your current working directory is /Users/.../...-terminal.\n    at call (/$bunfs/root/src/entrypoints/cli.js:4303:7610)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-04-22T02:49:20.844Z"},{"error":"AxiosError: Request failed with status code 403\n    at hB (/$bunfs/root/src/entrypoints/cli.js:108:1194)\n    at <anonymous> (/$bunfs/root/src/entrypoints/cli.js:113:12750)\n    at emit (node:events:92:22)\n    at endReadableNT (internal:streams/readable:865:50)\n    at processTicksAndRejections (native:7:39)\n    at request (/$bunfs/root/src/entrypoints/cli.js:115:2467)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-04-22T02:57:50.346Z"},{"error":"AxiosError: Request failed with status code 404\n    at hB (/$bunfs/root/src/entrypoints/cli.js:108:1194)\n    at <anonymous> (/$bunfs/root/src/entrypoints/cli.js:113:12750)\n    at emit (node:events:92:22)\n    at endReadableNT (internal:streams/readable:865:50)\n    at processTicksAndRejections (native:7:39)\n    at request (/$bunfs/root/src/entrypoints/cli.js:115:2467)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-04-22T02:57:57.599Z"},{"error":"AxiosError: Request failed with status code 404\n    at hB (/$bunfs/root/src/entrypoints/cli.js:108:1194)\n    at <anonymous> (/$bunfs/root/src/entrypoints/cli.js:113:12750)\n    at emit (node:events:92:22)\n    at endReadableNT (internal:streams/readable:865:50)\n    at processTicksAndRejections (native:7:39)\n    at request (/$bunfs/root/src/entrypoints/cli.js:115:2467)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-04-22T02:58:42.163Z"}]