megachangelog
Feature

Give every agent in Herdr its own Vercel Sandbox

Terminal coding agents like Claude Code, Codex, and OpenCode can now each run in isolated Vercel Sandboxes, orchestrated through a tmux-style manager that displays multiple agents in side-by-side panes. Projects are uploaded to the Sandbox and agents run there without affecting your local machine, enabling safe parallel execution of multiple agents.

Terminal coding agents like Claude Code, Codex, and OpenCode can now each run in their own isolated , orchestrated from , a tmux-style manager that runs them side by side in panes. Nothing an agent runs or edits touches your machine.Vercel SandboxHerdr

When you start an agent, the plugin uploads your project files into a new Sandbox, installs the agent there, and opens a pane connected to it.

The pane works like a local terminal; you type to the agent and watch it work. But it lives in the Sandbox, not on your machine, so you can run several agents at once without slowing anything down.

Everything the plugin does is machine-readable. Each action returns its results as JSON, so whatever you can do from a pane, like starting an agent, checking its state, or applying its changes, a script or another agent can do too.

A few safeguards are built in. The plugin shows every file before the first upload, returns remote changes as a Git patch you apply only when you choose, and requires a human to type to permanently remove a Sandbox.DELETE

Claude Code (2.1.220), Codex (0.146.0), and OpenCode (1.18.9) are all verified and available by default.

To get started, install the : plugin

Run in the repository you want the agent to work on, then start an agent from Herdr's action menu.vercel link

Starting takes two invocations. The first is a dry run: it lists every file it would upload and creates nothing. Run it again, and the plugin creates the Sandbox and opens the agent in a pane. To pull the agent's work back to your machine, run the apply action and its changes arrive as a Git patch.

Usage is billed at . Learn more in the .standard Sandbox ratesdocumentation

Read more

sandboxagentsherdrisolationdevelopment

Source: original entry ↗

More from Vercel

Follow Vercel to get its new changes in your feed and email digest.

Announcement2026.10.19

Updates to Hobby and Pro Terms of Service

Vercel is updating Terms of Service for Hobby and Pro customers effective October 19, 2026, clarifying credit policies, managed accounts, auto-renewal practices, and adding statutory cancellation and refund rights for UK and EU consumers, including protections for service changes with negative impact.

termsbillingcreditspolicylegal
Announcement

Mercury 3 now available on AI Gateway

Inception's Mercury 3 model is now available on Vercel's AI Gateway with 50% launch pricing and generation speeds exceeding 1,000 tokens per second. The model enables parallel text refinement with a 1M-token context window, ideal for real-time applications like browser agents and customer support.

ai-gatewaymodelsinferencellmlaunch
Announcement

MiniMax M3.1 Flash now available on AI Gateway for free

MiniMax M3.1 Flash, an open-weight multimodal model with 1M-token context window for coding and agentic work, is now available on Vercel's AI Gateway at no cost through October 20. The model excels at complex agent tasks, coding applications, and cybersecurity work, and can be used through multiple APIs and coding agents.

ai-gatewaymodelscodingagentsapi
See all Vercel changes →