Flag ad formats that are a poor fit or commonly misused for a given objective and platform - formats the objective does not even expose, formats built for a different funnel stage, formats the team cannot produce - then, post-launch, separate a format problem from a creative or targeting problem.
Install
npx skills add mbfinotti/advertising-skills --skill ad-format-fitnpx skills add mbfinotti/advertising-skills --skill ad-format-fit -a claude-code -gnpx skills add mbfinotti/advertising-skills --skill ad-format-fit -a codex -ggemini skills install https://github.com/mbfinotti/advertising-skills.git --path skills/ad-format-fitgh skill install mbfinotti/advertising-skills ad-format-fitgit clone --depth 1 https://github.com/mbfinotti/advertising-skills /tmp/mbfinotti__advertising-skills
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/mbfinotti__advertising-skills/skills/ad-format-fit ~/.claude/skills/ad-format-fit # Claude Code
cp -R /tmp/mbfinotti__advertising-skills/skills/ad-format-fit ~/.agents/skills/ad-format-fit # Codex, Cursor, Gemini CLI, Copilot, OpenCode