Human In The Loop Agent Approval And Override Workflows

via “human-in-the-loop workflow execution with approval gates”

The Frontend Stack for Agents & Generative UI. React + Angular. Makers of the AG-UI Protocol

Unique: Implements human-in-the-loop as a first-class pattern in the AG-UI Protocol, where agents can emit approval requests and wait for user decisions. Enables conditional execution paths based on user input, creating interactive workflows where agents and humans collaborate.

vs others: Unlike fire-and-forget agent execution (Vercel AI SDK), CopilotKit's approval gates enable users to intercept and modify agent actions mid-execution. Provides safety guardrails for sensitive operations without requiring custom agent logic.