Agent Loading Failure After Version Upgrade to 1.0.80

Bug Description
I just upgraded from 1.0.77 to 1.0.80 and none of my agents are loading.

Environment Info

• Platform: darwin
• Terminal: iTerm.app
• Version: 1.0.80
• Feedback ID: d0c5a306-2508-44a6-9d61-2552f80eac6e

Errors

[{"error":"Error: Agent file /Users/john/.claude/agents/marketing/instagram-curator.md is missing required 'name' in frontmatter\n    at _W8 (file:///Users/john/Library/Application%20Support/fnm/node-versions/v22.18.0/installation/lib/node_modules/@anthropic-ai/claude-code/cli.js:2344:1724)\n    at file:///Users/john/Library/Application%20Support/fnm/node-versions/v22.18.0/installation/lib/node_modules/@anthropic-ai/claude-code/cli.js:2344:282\n    at Array.map (<anonymous>)\n    at file:///Users/john/Library/Application%20Support/fnm/node-versions/v22.18.0/installation/lib/node_modules/@anthropic-ai/claude-code/cli.js:2344:212\n    at async file:///Users/john/Library/Application%20Support/fnm/node-versions/v22.18.0/installation/lib/node_modules/@anthropic-ai/claude-code/cli.js:2344:131\n    at async duB (file:///Users/john/Library/Application%20Support/fnm/node-versions/v22.18.0/installation/lib/node_modules/@anthropic-ai/claude-code/cli.js:3151:4)\n    at async Object.prompt (file:///Users/john/Library/Application%20Support/fnm/node-versions/v22.18.0/installation/lib/node_modules/@anthropic-ai/claude-code/cli.js:3223:1219)\n    at async GPB (file:///Users/john/Library/Application%20Support/fnm/node-versions/v22.18.0/installation/lib/node_modules/@anthropic-ai/claude-code/cli.js:1847:191)\n    at async Promise.all (index 0)\n    at async Promise.all (index 0)","timestamp":"2025-08-13T21:32:21.674Z"},{"error":"ReferenceError: location is not defined\n    at file:///Users/john/Library/Application%20Support/fnm/node-versions/v22.18.0/installation/lib/node_modules/@anthropic-ai/claude-code/cli.js:2344:424\n    at Array.map (<anonymous>)\n    at file:///Users/john/Library/Application%20Support/fnm/node-versions/v22.18.0/installation/lib/node_modules/@anthropic-ai/claude-code/cli.js:2344:212\n    at async file:///Users/john/Library/Application%20Support/fnm/node-versions/v22.18.0/installation/lib/node_modules/@anthropic-ai/claude-code/cli.js:2344:131\n    at async duB (file:///Users/john/Library/Application%20Support/fnm/node-versions/v22.18.0/installation/lib/node_modules/@anthropic-ai/claude-code/cli.js:3151:4)\n    at async Object.prompt (file:///Users/john/Library/Application%20Support/fnm/node-versions/v22.18.0/installation/lib/node_modules/@anthropic-ai/claude-code/cli.js:3223:1219)\n    at async GPB (file:///Users/john/Library/Application%20Support/fnm/node-versions/v22.18.0/installation/lib/node_modules/@anthropic-ai/claude-code/cli.js:1847:191)\n    at async Promise.all (index 0)\n    at async Promise.all (index 0)\n    at async TPB (file:///Users/john/Library/Application%20Support/fnm/node-versions/v22.18.0/installation/lib/node_modules/@anthropic-ai/claude-code/cli.js:1857:19768)","timestamp":"2025-08-13T21:32:21.678Z"},{"error":"Error: 413 {\"error\":{\"type\":\"request_too_large\",\"message\":\"Request exceeds the maximum size\"}}\n    at D6.generate (file:///Users/john/Library/Application%20Support/fnm/node-versions/v22.18.0/installation/lib/node_modules/@anthropic-ai/claude-code/cli.js:936:2639)\n    at sP.makeStatusError (file:///Users/john/Library/Application%20Support/fnm/node-versions/v22.18.0/installation/lib/node_modules/@anthropic-ai/claude-code/cli.js:953:2101)\n    at sP.makeRequest (file:///Users/john/Library/Application%20Support/fnm/node-versions/v22.18.0/installation/lib/node_modules/@anthropic-ai/claude-code/cli.js:953:5315)\n    at process.processTicksAndRejections (node:internal/process/task_queues:105:5)","timestamp":"2025-08-13T21:33:26.412Z"},{"error":"Error: Request was aborted.\n    at _Z1._createMessage (file:///Users/john/Library/Application%20Support/fnm/node-versions/v22.18.0/installation/lib/node_modules/@anthropic-ai/claude-code/cli.js:944:7955)\n    at process.processTicksAndRejections (node:internal/process/task_queues:105:5)","timestamp":"2025-08-13T21:37:06.255Z"},{"error":"Error: 400 {\"type\":\"error\",\"error\":{\"type\":\"invalid_request_error\",\"message\":\"messages.0: all messages must have non-empty content except for the optional final assistant message\"}}\n    at D6.generate (file:///Users/john/Library/Application%20Support/fnm/node-versions/v22.18.0/installation/lib/node_modules/@anthropic-ai/claude-code/cli.js:936:2371)\n    at sP.makeStatusError (file:///Users/john/Library/Application%20Support/fnm/node-versions/v22.18.0/installation/lib/node_modules/@anthropic-ai/claude-code/cli.js:953:2101)\n    at sP.makeRequest (file:///Users/john/Library/Application%20Support/fnm/node-versions/v22.18.0/installation/lib/node_modules/@anthropic-ai/claude-code/cli.js:953:5315)\n    at process.processTicksAndRejections (node:internal/process/task_queues:105:5)","timestamp":"2025-08-13T21:50:49.492Z"}]