Three commands in your terminal
git clone https://github.com/ayghri/i-have-adhd ./i-have-adhd
claude plugin marketplace add ./i-have-adhd
claude plugin install i-have-adhd@i-have-adhd
# then, inside Claude Code:
/i-have-adhdVerify with claude plugin list — you want to see i-have-adhd (enabled). If /i-have-adhd isn't in autocomplete, restart Claude Code; the plugin index loads at startup.