Evidence-tested design, implementation, and review skills for AI coding agents. File-based handoffs across Claude Code, OpenAI Codex, sessions, and vendors—no shared chat required.
Skill Claude CodeCodex
Use when a change needs a written design before any code is written, when a request's scope or business meaning is not settled, or when the next phase will run in a different session or a different agent with no access to this conversation.
Skill Claude CodeCodex
Use when the user asks to run a change through design, implementation and review as one flow, names solo or relay or auto, or wants a change handed between agents or sessions rather than done in one conversation.
Skill Claude CodeCodex
Use when an approved design exists and the change has to be built from it, including when the design was written by another agent or in an earlier session, or when the work must be handed on afterwards with a record of what actually changed.
Skill Claude CodeCodex
Use when a change has been implemented and someone has to decide whether it is done, whether the reviewer is a different agent with fresh context or the same agent that wrote the code.
At most 3 mods per repository are shown here, and a mod shipped inside a plugin is left to that plugin's page — the rest are on their repository pages: