[Bug] Regression in Code Understanding Quality with Claude Sonnet 4.5

Bug Description
I'm sorry but this new 2.0.0 has regressed massively the quality of the understanding is terrible, this is currently un-usable with Sonnet 4.5 – who beta tested this????

Environment Info

• Platform: darwin
• Terminal: Hyper
• Version: 2.0.0
• Feedback ID: 80204904-eee5-42bc-91e4-f278b52905b5

Errors

[{"error":"AbortError: The operation was aborted\n    at abortChildProcess (node:child_process:725:27)\n    at EventTarget.onAbortListener (node:child_process:795:7)\n    at [nodejs.internal.kHybridDispatch] (node:internal/event_target:831:20)\n    at EventTarget.dispatchEvent (node:internal/event_target:766:26)\n    at abortSignal (node:internal/abort_controller:370:10)\n    at AbortController.abort (node:internal/abort_controller:392:5)\n    at Timeout._onTimeout (file:///Users/Matthew.Slight/.nvm/versions/node/v20.19.4/lib/node_modules/@anthropic-ai/claude-code/cli.js:3666:4297)\n    at listOnTimeout (node:internal/timers:581:17)\n    at process.processTimers (node:internal/timers:519:7)","timestamp":"2025-09-29T18:25:03.842Z"},{"error":"Error: Language not supported while highlighting code, falling back to markdown: \n    at ZK (file:///Users/Matthew.Slight/.nvm/versions/node/v20.19.4/lib/node_modules/@anthropic-ai/claude-code/cli.js:1741:1183)\n    at file:///Users/Matthew.Slight/.nvm/versions/node/v20.19.4/lib/node_modules/@anthropic-ai/claude-code/cli.js:1741:911\n    at Array.map (<anonymous>)\n    at vX (file:///Users/Matthew.Slight/.nvm/versions/node/v20.19.4/lib/node_modules/@anthropic-ai/claude-code/cli.js:1741:902)\n    at rJB (file:///Users/Matthew.Slight/.nvm/versions/node/v20.19.4/lib/node_modules/@anthropic-ai/claude-code/cli.js:2847:9380)\n    at CC (file:///Users/Matthew.Slight/.nvm/versions/node/v20.19.4/lib/node_modules/@anthropic-ai/claude-code/cli.js:34:19415)\n    at Xp (file:///Users/Matthew.Slight/.nvm/versions/node/v20.19.4/lib/node_modules/@anthropic-ai/claude-code/cli.js:36:42814)\n    at I9 (file:///Users/Matthew.Slight/.nvm/versions/node/v20.19.4/lib/node_modules/@anthropic-ai/claude-code/cli.js:36:38355)\n    at Dh (file:///Users/Matthew.Slight/.nvm/versions/node/v20.19.4/lib/node_modules/@anthropic-ai/claude-code/cli.js:36:38283)\n    at TC (file:///Users/Matthew.Slight/.nvm/versions/node/v20.19.4/lib/node_modules/@anthropic-ai/claude-code/cli.js:36:38137)","timestamp":"2025-09-29T18:42:51.921Z"},{"error":"Error: Language not supported while highlighting code, falling back to markdown: \n    at ZK (file:///Users/Matthew.Slight/.nvm/versions/node/v20.19.4/lib/node_modules/@anthropic-ai/claude-code/cli.js:1741:1183)\n    at file:///Users/Matthew.Slight/.nvm/versions/node/v20.19.4/lib/node_modules/@anthropic-ai/claude-code/cli.js:1741:911\n    at Array.map (<anonymous>)\n    at vX (file:///Users/Matthew.Slight/.nvm/versions/node/v20.19.4/lib/node_modules/@anthropic-ai/claude-code/cli.js:1741:902)\n    at rJB (file:///Users/Matthew.Slight/.nvm/versions/node/v20.19.4/lib/node_modules/@anthropic-ai/claude-code/cli.js:2847:9380)\n    at CC (file:///Users/Matthew.Slight/.nvm/versions/node/v20.19.4/lib/node_modules/@anthropic-ai/claude-code/cli.js:34:19415)\n    at Xp (file:///Users/Matthew.Slight/.nvm/versions/node/v20.19.4/lib/node_modules/@anthropic-ai/claude-code/cli.js:36:42814)\n    at I9 (file:///Users/Matthew.Slight/.nvm/versions/node/v20.19.4/lib/node_modules/@anthropic-ai/claude-code/cli.js:36:38355)\n    at Dh (file:///Users/Matthew.Slight/.nvm/versions/node/v20.19.4/lib/node_modules/@anthropic-ai/claude-code/cli.js:36:38283)\n    at TC (file:///Users/Matthew.Slight/.nvm/versions/node/v20.19.4/lib/node_modules/@anthropic-ai/claude-code/cli.js:36:38137)","timestamp":"2025-09-29T18:50:46.791Z"}]