The complete file-by-file source-of-truth hierarchy for Squad: which files are authoritative, which are derived/append-only, who may write each one, who may read each one, and the precedence rules when they conflict. Squad coordinator loads this on demand when it needs to resolve a write conflict, decide where a piece of state belongs, or answer a 'who owns this file' question.
Install
npx skills add github/gh-aw --skill coordinator-source-of-truthnpx skills add github/gh-aw --skill coordinator-source-of-truth -a claude-code -gnpx skills add github/gh-aw --skill coordinator-source-of-truth -a codex -ggemini skills install https://github.com/github/gh-aw.git --path .squad/templates/skills/coordinator-source-of-truthgh skill install github/gh-aw coordinator-source-of-truthgit clone --depth 1 https://github.com/github/gh-aw /tmp/github__gh-aw
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/github__gh-aw/.squad/templates/skills/coordinator-source-of-truth ~/.claude/skills/coordinator-source-of-truth # Claude Code
cp -R /tmp/github__gh-aw/.squad/templates/skills/coordinator-source-of-truth ~/.agents/skills/coordinator-source-of-truth # Codex, Cursor, Gemini CLI, Copilot, OpenCode