simplify

name	simplify
description	Review recently changed code for unnecessary complexity and edit it in place to simplify — removes over-engineering, dead code, and premature abstractions while preserving behavior. Unlike review (which only reports), this applies the changes. Use after building a feature, or when the user says "simplify this", "this feels over-engineered", "clean this up", or "de-engineer".

When the user runs /simplify, do the following:

1. Run git diff HEAD~3..HEAD to see recent changes (or use the scope the user specifies)
2. Delegate to the code-simplifier subagent to review the changes
3. Present the findings grouped by confidence level:
   • High confidence — safe to apply immediately
   • Medium confidence — worth discussing
   • Low confidence — optional improvements
4. Apply the high-confidence simplifications automatically
5. Ask about medium-confidence ones before applying
6. Commit the simplifications as refactor: simplify [area]