Extended Thinking Improvements

What: Simplified thinking trigger system with new programmatic control

How to use:

# Use "ultrathink" anywhere in your prompt for maximum thinking
claude
> Please ultrathink about this architectural design

# Toggle thinking with tab key during interactive sessions
# Or use /t command

Details:

• Streamlined from multilingual pattern matching to single "ultrathink" keyword
• Binary mode: ULTRATHINK (31,999 tokens) or NONE
• New thinkingMetadata API for programmatic control without text triggers
• Removed complex multi-level system (HIGHEST/MIDDLE/BASIC) in favor of simpler on/off
• Thinking state notifications show "Thinking on/off (tab to toggle)"
• Evidence: Pattern at line 363628, functions Y61() at line 363667, Y09() at line 363644, le1() at line 363671, metadata handling at line 363649 in v2.0.0