Use when the user explicitly requests strict or test-first TDD, or when the current conversation already contains an explicit `TDD Route: strict` decision from another Aegis workflow.
Install
npx skills add GanyuanRan/Aegis --skill test-driven-developmentnpx skills add GanyuanRan/Aegis --skill test-driven-development -a claude-code -gnpx skills add GanyuanRan/Aegis --skill test-driven-development -a codex -ggemini skills install https://github.com/GanyuanRan/Aegis.git --path skills/test-driven-developmentgh skill install GanyuanRan/Aegis test-driven-developmentgit clone --depth 1 https://github.com/GanyuanRan/Aegis /tmp/GanyuanRan__Aegis
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/GanyuanRan__Aegis/skills/test-driven-development ~/.claude/skills/test-driven-development # Claude Code
cp -R /tmp/GanyuanRan__Aegis/skills/test-driven-development ~/.agents/skills/test-driven-development # Codex, Cursor, Gemini CLI, Copilot, OpenCode