External agent skill (MIT, github.com/DietrichGebert/ponytail). Forces the laziest solution that actually works: question whether the task needs to exist at all (YAGNI), reuse what is already in the codebase, reach for the standard library before custom code, native platform features before dependencies, one line before fifty.
Install
npx skills add cheaper-inference/OmniRoute --skill ponytailnpx skills add cheaper-inference/OmniRoute --skill ponytail -a claude-code -gnpx skills add cheaper-inference/OmniRoute --skill ponytail -a codex -ggemini skills install https://github.com/cheaper-inference/OmniRoute.git --path skills/ponytailgh skill install cheaper-inference/OmniRoute ponytailgit clone --depth 1 https://github.com/cheaper-inference/OmniRoute /tmp/cheaper-inference__OmniRoute
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/cheaper-inference__OmniRoute/skills/ponytail ~/.claude/skills/ponytail # Claude Code
cp -R /tmp/cheaper-inference__OmniRoute/skills/ponytail ~/.agents/skills/ponytail # Codex, Cursor, Gemini CLI, Copilot, OpenCode