Model Descriptions for Claude

What changed: Model options now include descriptions specifically tailored for Claude's decision-making

Details:

• Added descriptionForModel field to model configurations
• Sonnet 4.5: "the most powerful model. Generally best for most coding tasks"
• Sonnet (1M context): "with 1M context window - for long sessions with large codebases"
• Opus 4.1: "slower and more expensive than Sonnet, generally not recommended over Sonnet 4.5"
• Helps Claude make better model switching decisions when exiting plan mode
• Evidence: kB4.descriptionForModel at line 364157, fL1.descriptionForModel at line 364164, wtA.descriptionForModel at line 364173 in v2.0.10 (did not exist in v2.0.9)