[Bug] Plan Mode Inconsistent Output Format

Bug Description
Plan mode doesn't always output in a accept/decline format. Sometimes it comes back as just a conversational message.

Environment Info

• Platform: darwin
• Terminal: Apple_Terminal
• Version: 2.0.2
• Feedback ID: 7f95b5b6-f8db-475f-b3d5-c44453cd161f

Errors

[{"error":"Error: Language not supported while highlighting code, falling back to markdown: \n    at FK (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:2337:1226)\n    at file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:2337:954\n    at Array.map (<anonymous>)\n    at vX (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:2337:945)\n    at Z2B (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:2337:13021)\n    at $C (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:34:19415)\n    at Xp (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:36:42814)\n    at W9 (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:36:38355)\n    at Dh (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:36:38283)\n    at jC (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:36:38137)","timestamp":"2025-10-01T20:38:38.402Z"},{"error":"Error: Language not supported while highlighting code, falling back to markdown: \n    at FK (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:2337:1226)\n    at file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:2337:954\n    at Array.map (<anonymous>)\n    at vX (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:2337:945)\n    at Z2B (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:2337:13021)\n    at $C (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:34:19415)\n    at Xp (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:36:42814)\n    at W9 (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:36:38355)\n    at Dh (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:36:38283)\n    at jC (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:36:38137)","timestamp":"2025-10-01T20:38:38.407Z"},{"error":"Error: Language not supported while highlighting code, falling back to markdown: \n    at FK (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:2337:1226)\n    at file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:2337:954\n    at Array.map (<anonymous>)\n    at vX (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:2337:945)\n    at Z2B (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:2337:13021)\n    at $C (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:34:19415)\n    at Xp (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:36:42814)\n    at W9 (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:36:38355)\n    at Dh (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:36:38283)\n    at jC (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:36:38137)","timestamp":"2025-10-01T20:38:38.408Z"},{"error":"Error: Language not supported while highlighting code, falling back to markdown: \n    at FK (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:2337:1226)\n    at file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:2337:954\n    at Array.map (<anonymous>)\n    at vX (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:2337:945)\n    at Z2B (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:2337:13021)\n    at $C (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:34:19415)\n    at Xp (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:36:42814)\n    at W9 (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:36:38355)\n    at Dh (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:36:38283)\n    at jC (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:36:38137)","timestamp":"2025-10-01T20:41:59.850Z"},{"error":"Error: Language not supported while highlighting code, falling back to markdown: \n    at FK (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:2337:1226)\n    at file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:2337:954\n    at Array.map (<anonymous>)\n    at vX (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:2337:945)\n    at Z2B (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:2337:13021)\n    at $C (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:34:19415)\n    at Xp (file:///opt

Note: Error logs were truncated.