Extensions for Codex, Claude Code, Cursor, and other agent hosts
Ponytail gives Codex, Claude Code, OpenCode, and other coding agents a minimal-implementation ruleset, six companion Skills, and lifecycle hooks. It prioritizes existing code, standard libraries, and native platform features without removing security, validation, error handling, or accessibility safeguards.
A GitHub-hosted community collection of installable Copilot plugins plus agents, skills, instructions, hooks, workflows, and copy-ready guidance.
A Microsoft HVE-maintained GitHub Copilot workflow pack that combines agents, prompts, instructions, and skills for research, planning, implementation, review, and security checks.
Power Platform Skills is Microsoft's official agent plugin marketplace for Power Pages, Power Apps, Power Automate, and related development workflows in Claude Code and GitHub Copilot CLI.
