Choose, declare and calibrate the sensors a project needs, then gate on them with ynh check. Use when a harness has no sensors, when ynh check reports nothing useful, or when setting up an agent loop that needs something to converge against.
Install
npx skills add eyelock/ynh --skill ynh-sensorsnpx skills add eyelock/ynh --skill ynh-sensors -a claude-code -gnpx skills add eyelock/ynh --skill ynh-sensors -a codex -ggemini skills install https://github.com/eyelock/ynh.git --path skills/ynh-sensorsgh skill install eyelock/ynh ynh-sensorsgit clone --depth 1 https://github.com/eyelock/ynh /tmp/eyelock__ynh
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/eyelock__ynh/skills/ynh-sensors ~/.claude/skills/ynh-sensors # Claude Code
cp -R /tmp/eyelock__ynh/skills/ynh-sensors ~/.agents/skills/ynh-sensors # Codex, Cursor, Gemini CLI, Copilot, OpenCode