This adds a native tokrepo-search Codex skill and README entry.

Why it fits:

• gives Codex users a direct way to discover installable skills, MCP servers, prompts, cursor rules, and workflows
• follows the repo native format with a self-contained skill folder
• uses npx tokrepo search and npx tokrepo install so users can go from discovery to installation quickly

Happy to tighten the wording or move the entry to another section if you prefer.