Check that the trunk doesn't already have a feature before you branch for it. Use when starting new work, like "start a branch", "new feature branch", "begin work on X" or "create a worktree", and before the first git checkout -b or git worktree add of a task.
Install
npx skills add dimokol/agent-dojo --skill verify-before-buildingnpx skills add dimokol/agent-dojo --skill verify-before-building -a claude-code -gnpx skills add dimokol/agent-dojo --skill verify-before-building -a codex -ggemini skills install https://github.com/dimokol/agent-dojo.git --path plugins/verify-before-building/skills/verify-before-buildinggh skill install dimokol/agent-dojo verify-before-buildinggit clone --depth 1 https://github.com/dimokol/agent-dojo /tmp/dimokol__agent-dojo
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/dimokol__agent-dojo/plugins/verify-before-building/skills/verify-before-building ~/.claude/skills/verify-before-building # Claude Code
cp -R /tmp/dimokol__agent-dojo/plugins/verify-before-building/skills/verify-before-building ~/.agents/skills/verify-before-building # Codex, Cursor, Gemini CLI, Copilot, OpenCode