Use when parameterizing requests across environments, choosing variable scopes, chaining values in scripts, or referencing credentials without committing or exposing them. Keeps one reusable collection while separating target configuration from secret values. Use for requests such as "where should I put this API key".
Install
npx skills add postmanlabs/postman-plugin --skill variablesnpx skills add postmanlabs/postman-plugin --skill variables -a claude-code -gnpx skills add postmanlabs/postman-plugin --skill variables -a codex -ggemini skills install https://github.com/postmanlabs/postman-plugin.git --path skills/variablesgh skill install postmanlabs/postman-plugin variablesgit clone --depth 1 https://github.com/postmanlabs/postman-plugin /tmp/postmanlabs__postman-plugin
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/postmanlabs__postman-plugin/skills/variables ~/.claude/skills/variables # Claude Code
cp -R /tmp/postmanlabs__postman-plugin/skills/variables ~/.agents/skills/variables # Codex, Cursor, Gemini CLI, Copilot, OpenCode