When building Agentic systems, giving your Agent an MCP server full of tools is only half the battle. Tools act as the functional buttons and form inputs of your application. But an interface made entirely of empty input fields and naked buttons without text labels is impossible to navigate.
To bridge the gap between having a capability and knowing how to apply it, we use Context Markdown Documents (SKILLs) within the Agent's Harness. In Agent Experience (AX), these markdown documents act like our interface page copy, tooltips, and onboarding manuals.
Note
While Anthropic’s open-source SKILLs framework is the most popular structure for this pattern, the underlying concepts are universal. They map directly to Google Labs' DESIGN.md specification for UI coding agents, as well as ecosystem standards like .cursorrules or AGENTS.md files used to ground cod