Install and maintain a "model routing" section in a project's CLAUDE.md that teaches Claude Code which model to use for which work — including delegating to GPT models via the Codex CLI. Use when the user wants to add model-picking guidance to CLAUDE.md, set up Codex/GPT as a delegation target or fallback, route subagent and workflow tasks across models by cost/intelligence/taste, or says "add model routing", "use codex as fallback", or "set up multi-model workflows".
$npx -y skills add dashed/claude-marketplace --skill model-routingInstalls into the current project.
Run `npx skills use "https://github.com/dashed/claude-marketplace" --skill "dashed/claude-marketplace/model-routing"` and follow the generated skill instructions now. Read its complete output, redirecting it to a temporary file first if necessary. Resolve relative paths from the supporting-files directory it provides.
Use the skills in "https://github.com/dashed/claude-marketplace" that are relevant to the current task. Run `npx skills add "https://github.com/dashed/claude-marketplace"` and select the relevant skills, then follow their instructions.