Challenge an outbound campaign copy by benchmarking it against the user's existing campaigns — what worked, what didn't, what the winners do differently — and return a concrete verdict plus prioritized fixes.
Install
npx skills add LaGrowthMachine/gtm-system --skill campaign-challengernpx skills add LaGrowthMachine/gtm-system --skill campaign-challenger -a claude-code -gnpx skills add LaGrowthMachine/gtm-system --skill campaign-challenger -a codex -ggemini skills install https://github.com/LaGrowthMachine/gtm-system.git --path skills/get-qualified-meetings/campaign-challengergh skill install LaGrowthMachine/gtm-system campaign-challengergit clone --depth 1 https://github.com/LaGrowthMachine/gtm-system /tmp/LaGrowthMachine__gtm-system
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/LaGrowthMachine__gtm-system/skills/get-qualified-meetings/campaign-challenger ~/.claude/skills/campaign-challenger # Claude Code
cp -R /tmp/LaGrowthMachine__gtm-system/skills/get-qualified-meetings/campaign-challenger ~/.agents/skills/campaign-challenger # Codex, Cursor, Gemini CLI, Copilot, OpenCode