Introducing eve
Vercel announced eve, an open-source agent framework designed for building, running, and scaling agents. The framework is built around the principle that defining an agent should not require assembling all the pieces needed for production; instead, eve includes production capabilities out of the box. Vercel states that eve is the framework they use to build and run their own agents. The announcement draws a parallel to the web development landscape before frameworks, where developers manually handled common plumbing tasks, and positions eve as doing for agents what Next.js did for the web. An eve agent is defined through a file structure where each file describes one component of the agent, making the tree structure reveal what the agent is, what it does, where it lives, and when it acts autonomously. The agent definition starts with an agent.ts file for configuration, including model selection with provider fallbacks via AI Gateway, compaction, and other optional fields. A separate file serves as the system prompt to give the agent a job and personality.
Eve standardizes agent development with built-in production readiness, reducing repetitive plumbing.