[Bug] Custom agents fail to initialize

Bug Description
custom agents didn't initialize

Environment Info

• Platform: darwin
• Terminal: ghostty
• Version: 2.1.66
• Feedback ID: cd68d0c7-522a-4845-a87d-c8ca63940745

Errors

[{"error":"Error: 1P event logging: 15 events failed to export (status=429, code=ERR_BAD_REQUEST, Request failed with status code 429)\n    at queueFailedEvents (/$bunfs/root/claude:6264:2654)\n    at async doExport (/$bunfs/root/claude:6264:1561)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-03-04T08:08:22.279Z"},{"error":"Error: Failed to delete keychain entry\n    at bdB (/$bunfs/root/claude:3653:6018)\n    at async E80 (/$bunfs/root/claude:6284:685)\n    at async ikA (/$bunfs/root/claude:6284:589)\n    at async WpT (/$bunfs/root/claude:2413:2226)\n    at async zpT (/$bunfs/root/claude:2437:5405)\n    at async <anonymous> (/$bunfs/root/claude:2453:3956)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-03-04T08:08:29.305Z"},{"error":"Error\n    at <anonymous> (/$bunfs/root/claude:93:10649)\n    at emit (node:events:92:22)\n    at <anonymous> (/$bunfs/root/claude:92:5642)\n    at request (/$bunfs/root/claude:95:2149)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-03-04T08:08:37.799Z"},{"error":"Error\n    at <anonymous> (/$bunfs/root/claude:93:10649)\n    at emit (node:events:92:22)\n    at <anonymous> (/$bunfs/root/claude:92:5642)\n    at request (/$bunfs/root/claude:95:2149)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-03-04T08:08:37.799Z"},{"error":"Error\n    at <anonymous> (/$bunfs/root/claude:93:10649)\n    at emit (node:events:92:22)\n    at <anonymous> (/$bunfs/root/claude:92:5642)\n    at request (/$bunfs/root/claude:95:2149)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-03-04T08:08:37.824Z"},{"error":"Error: 1P event logging: 75 events failed to export (status=429, code=ERR_BAD_REQUEST, Request failed with status code 429)\n    at queueFailedEvents (/$bunfs/root/claude:6264:2654)\n    at async doExport (/$bunfs/root/claude:6264:1561)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-03-04T08:08:38.438Z"},{"error":"Error: {\"message\":\"Failed to export 75 events (status=429, code=ERR_BAD_REQUEST, Request failed with status code 429)\",\"originalLine\":\"6264\",\"originalColumn\":\"1713\",\"line\":\"6264\",\"column\":\"1713\",\"sourceURL\":\"/$bunfs/root/claude\",\"stack\":\"Error: Failed to export 75 events (status=429, code=ERR_BAD_REQUEST, Request failed with status code 429)\\n    at doExport (/$bunfs/root/claude:6264:1713)\\n    at processTicksAndRejections (native:7:39)\",\"name\":\"Error\"}\n    at error (/$bunfs/root/claude:2402:25029)\n    at <anonymous> (/$bunfs/root/claude:119:92465)\n    at A4D (/$bunfs/root/claude:119:93009)\n    at <anonymous> (/$bunfs/root/claude:120:17366)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-03-04T08:08:38.438Z"},{"error":"Error: Request was aborted.\n    at jhR (/$bunfs/root/claude:821:96594)\n    at next (native:1:11)\n    at tB0 (/$bunfs/root/claude:6029:6980)\n    at next (native:1:11)\n    at R00 (/$bunfs/root/claude:6034:9198)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-03-04T08:08:46.377Z"},{"error":"Error: 1P event logging: 26 events failed to export (status=429, code=ERR_BAD_REQUEST, Request failed with status code 429)\n    at queueFailedEvents (/$bunfs/root/claude:6264:2654)\n    at async doExport (/$bunfs/root/claude:6264:1561)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-03-04T08:08:48.533Z"},{"error":"Error: {\"message\":\"Failed to export 26 events (status=429, code=ERR_BAD_REQUEST, Request failed with status code 429)\",\"originalLine\":\"6264\",\"originalColumn\":\"1713\",\"line\":\"6264\",\"column\":\"1713\",\"sourceURL\":\"/$bunfs/root/claude\",\"stack\":\"Error: Failed to export 26 events (status=429, code=ERR_BAD_REQUEST, Request failed with status code 429)\\n    at doExport (/$bunfs/root/claude:6264:1713)\\n    at processTicksAndRejections (native:7:39)\",\"name\":\"Error\"}\n    at error (/$bunfs/root/claude:2402:25029)\n    at <anonymous> (/$bunfs/root/claude:119:92465)\n    at A4D (/$bunfs/root/claude:119:93009)\n    at <anonymous> (/$bunfs/root/claude:120:17366)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-03-04T08:08:48.534Z"},{"error":"Error: {\"message\":\"Dropped 21 events: max attempts (8) reached\",\"originalLine\":\"6264\",\"originalColumn\":\"1378\",\"line\":\"6264\",\"column\":\"1378\",\"source…

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