Thinking-mode skills that activate when the user asks Claude to think harder. Currently provides deep-think (3-layer verification + critical self-questioning, minimum 3 iterations). Designed as a horizontal plugin parallel to genshijin (output mode). Extracted from core-instructions so bootstrap and runtime concerns install independently.
Installation
1
Add the marketplace
/plugin marketplace add arkatom/claude-plugins
2
Install plugins
/plugin
Run these commands in Claude Code to add this plugin to your environment. The marketplace must be added before you can install its plugins.