The era of “AI as text” is over. Execution is the new interface.

GitHub has released the Copilot SDK, which lets developers embed agentic execution capabilities directly into their own applications. Rather than relying on text-in/text-out AI interactions, the SDK exposes the same planning and execution engine that powers GitHub Copilot CLI as a programmable layer. Three key patterns are highlighted: delegating multi-step work to agents instead of brittle scripts, grounding execution in structured runtime context via Model Context Protocol (MCP), and embedding agentic execution outside the IDE into desktop apps, SaaS platforms, background services, and event-driven systems.