Vercel launches eve, an open-source agent framework with production built in
Vercel has open-sourced eve, an agent framework that bundles durable workflows, sandboxed execution, human-in-the-loop approvals, multi-channel support, and OpenTelemetry tracing so developers can define what an agent does without hand-rolling production infrastructure.
Score breakdown
Eve consolidates the durable execution, sandboxed code running, auth brokering, multi-channel routing, and observability that every production agent requires into a single open-source framework, removing the per-team rebuild cycle Vercel describes as the current state of agent development.
- 01Vercel open-sourced eve, a framework for building, running, and scaling agents with production infrastructure included.
- 02File-based structure: `agent.ts` configures the model, `instructions.md` is the system prompt, and separate files define tools and skills.
- 03Every conversation is a durable workflow built on the open-source Workflow SDK, checkpointed so sessions survive crashes and deploys.
Vercel has launched eve, an open-source agent framework designed to eliminate the repetitive infrastructure work that teams face when building agents. The framework is file-based: an `agent.ts` file configures the model (with provider fallbacks supported through AI Gateway), an `instructions.md` file serves as the system prompt, and individual files define tools and skills. Vercel says the motivation came from shipping hundreds of internal agents — including v0 — and observing that every team was rebuilding the same plumbing from scratch with nothing carrying over between projects. The post draws an explicit analogy to Next.js ending hand-rolled web infrastructure, positioning eve as the equivalent abstraction layer for agents.
Durability is handled by the open-source Workflow SDK, which checkpoints every step of a conversation so a session can pause, survive a crash or a deploy, and resume exactly where it stopped.
The framework bundles several production concerns directly. Durability is handled by the open-source Workflow SDK, which checkpoints every step of a conversation so a session can pause, survive a crash or a deploy, and resume exactly where it stopped. Code execution happens in isolated sandboxes — backed by Vercel Sandbox in deployment and Docker, microsandbox, or just-bash locally — keeping agent-generated code out of the application runtime. Any action can be configured to require human approval, pausing the agent indefinitely without consuming compute until a person signs off. External connections point at MCP servers or OpenAPI-compatible APIs via a connection file; Vercel Connect handles OAuth with token refresh, and at launch eve supports Slack, GitHub, Snowflake, Salesforce, Notion, and Linear out of the box.
Multi-surface deployment is handled through small channel adapter files, with HTTP on by default and Slack, Discord, Teams, Telegram, Twilio, GitHub, and Linear included. Channels can hand off to one another — for example, an incident webhook can open an investigation thread in Slack. Observability is built in through standard OpenTelemetry spans covering every model call, tool call, and sandbox command, exportable to Braintrust, Honeycomb, Datadog, Jaeger, or any compatible tracing service.
Key facts
- 01Vercel open-sourced eve, a framework for building, running, and scaling agents with production infrastructure included.
- 02File-based structure: `agent.ts` configures the model, `instructions.md` is the system prompt, and separate files define tools and skills.
- 03Every conversation is a durable workflow built on the open-source Workflow SDK, checkpointed so sessions survive crashes and deploys.
- 04Agent-generated code runs in isolated sandboxes (Vercel Sandbox in production; Docker, microsandbox, or just-bash locally) separate from the application runtime.
- 05Any action can require human approval; the agent pauses indefinitely without consuming compute until approved.
- 06Connections to external services use MCP servers or OpenAPI documents; Vercel Connect handles OAuth with token refresh, supporting Slack, GitHub, Snowflake, Salesforce, Notion, and Linear at launch.
- 07Every run produces standard OpenTelemetry traces exportable to Braintrust, Honeycomb, Datadog, Jaeger, or any compatible tracing service.
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