Part of hooks/ — see also src/hooks/ for installation code

• TypeScript plugin using the zx library (not a shell hook)
• Intercepts tool.execute.before events, calls rtk rewrite as a subprocess
• Uses .quiet().nothrow() to silently ignore failures
• Mutates args.command in-place if rewrite differs from original
• Installed to ~/.config/opencode/plugins/rtk.ts by rtk init -g --opencode