[Bug] Claude Opus Max performance degradation in code generation quality

Bug Description
claude opus max mode is performing much less efficient and smart than before

Environment Info

• Platform: win32
• Terminal: cursor
• Version: 2.1.88
• Feedback ID: 5613a6be-fee0-4a93-84ef-d4fffae65ce8

Errors

[{"error":"Error: Failed to clone repository: Cloning into 'C:\\Users\\hugok\\.claude\\plugins\\cache\\temp_github_1774986250422_mbh4ip'...\ngit@github.com: Permission denied (publickey).\r\nfatal: Could not read from remote repository.\n\nPlease make sure you have the correct access rights\nand the repository exists.\n    at JYY (file:///C:/Users/hugok/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:4721:19031)\n    at process.processTicksAndRejections (node:internal/process/task_queues:105:5)\n    at async Z0K (file:///C:/Users/hugok/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:4721:19690)\n    at async Q18 (file:///C:/Users/hugok/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:4721:22662)\n    at async TYY (file:///C:/Users/hugok/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:4725:9467)\n    at async Promise.allSettled (index 1)\n    at async T0K (file:///C:/Users/hugok/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:4725:6464)\n    at async Promise.all (index 0)\n    at async k0K (file:///C:/Users/hugok/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:4725:17703)\n    at async file:///C:/Users/hugok/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:4725:19060","timestamp":"2026-03-31T19:44:10.949Z"},{"error":"MaxFileReadTokenExceededError: File content (29661 tokens) exceeds maximum allowed tokens (10000). Use offset and limit parameters to read specific portions of the file, or search for specific content instead of reading the whole file.\n    at oDK (file:///C:/Users/hugok/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:4541:13402)\n    at process.processTicksAndRejections (node:internal/process/task_queues:105:5)\n    at async aDK (file:///C:/Users/hugok/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:4545:2673)\n    at async Object.call (file:///C:/Users/hugok/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:4550:6329)\n    at async R5Y (file:///C:/Users/hugok/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:4102:6398)","timestamp":"2026-03-31T19:44:26.715Z"},{"error":"MaxFileReadTokenExceededError: File content (19938 tokens) exceeds maximum allowed tokens (10000). Use offset and limit parameters to read specific portions of the file, or search for specific content instead of reading the whole file.\n    at oDK (file:///C:/Users/hugok/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:4541:13402)\n    at process.processTicksAndRejections (node:internal/process/task_queues:105:5)\n    at async aDK (file:///C:/Users/hugok/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:4545:2673)\n    at async Object.call (file:///C:/Users/hugok/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:4550:6329)\n    at async R5Y (file:///C:/Users/hugok/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:4102:6398)","timestamp":"2026-03-31T19:44:27.054Z"}]