Claude plugin structure The Brand Kit OS Cowork plugin (v1.2.0) bundles MCP, skills, hooks, agents, and slash commands into a single uploadable folder. Layout Capabilities ( ) , , , , — all enabled. Session start hook ( ) On every new Cowork session: 1.
Calls 2. If exactly one kit exists → auto loads 3.
If multiple → prompts the user to choose Skills — when and how to load brand data — pre flight checklist for content review Agents | Agent | Purpose | | | | | | Generates brand aligned content | | | Reviews content against brand standards | | | Adapts content for specific personas | | | Validates compliance before delivery | | | Turns a Cowork digest into a published Leafpad post | Slash commands — load guidelines and apply them to a content request — generate brand aligned content for a type, audience, and topic Conditional MCP injection When Leafpad is linked under Partner Integrations, the downloaded automatically gains a server entry — required by the agent.