Marks every value in code that came from the research - a rate limit, endpoint, price, quota, timeout, schema field or error code - with a comment naming the evidence row (E-##) and project it rests on, so a wrong number can be traced to its source and re-checked.
Install
npx skills add StepenkoAnatoli/Fetchproof --skill cite-in-codenpx skills add StepenkoAnatoli/Fetchproof --skill cite-in-code -a claude-code -gnpx skills add StepenkoAnatoli/Fetchproof --skill cite-in-code -a codex -ggemini skills install https://github.com/StepenkoAnatoli/Fetchproof.git --path fetchproof/skills/cite-in-codegh skill install StepenkoAnatoli/Fetchproof cite-in-codegit clone --depth 1 https://github.com/StepenkoAnatoli/Fetchproof /tmp/StepenkoAnatoli__Fetchproof
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/StepenkoAnatoli__Fetchproof/fetchproof/skills/cite-in-code ~/.claude/skills/cite-in-code # Claude Code
cp -R /tmp/StepenkoAnatoli__Fetchproof/fetchproof/skills/cite-in-code ~/.agents/skills/cite-in-code # Codex, Cursor, Gemini CLI, Copilot, OpenCode