For AI agents: The documentation index is at https://docs.digitalocean.com/llms.txt. Markdown versions of pages use the same URL with index.html.md in place of the HTML page (for example, append index.html.md to the directory path instead of opening the HTML document).

Quickstart

Start a Codex CLI agent in an isolated DigitalOcean sandbox with a single doctl command.

Examples

Worked examples of Harness Runtime, each with a complete environment spec and the commands to run it, covering coding, marketing, document review, incident response, and multi-tenant agent products.

How-Tos

Task-focused guides for deploying agents, managing sessions, permissions, files, and tools.

Reference

Environment spec reference and links to doctl resources for Harness Runtime.

Concepts

Explanations of Harness Runtime environments, sandboxes, sessions, runs, adapters, permissions, approvals, secrets, and network egress.

Details

Use cases, features, pricing, availability, limits, and data privacy for Harness Runtime.

Latest Updates

6 October 2026

• DigitalOcean Harness Runtime now supports CrewAI agents. Package a CrewAI repository, declare kickoff inputs, connect a model and Action Gateway tools, and deploy your crew in an isolated sandbox. For more information, see How to Run a CrewAI Agent on DigitalOcean Harness Runtime.

• Harness Runtime Bring-Your-Own-Template (BYOT) registration now requires a recommended base template (codex-base, opencode-base, claude-code-base, hermes-base, or langgraph-base). Recommended bases provide stronger isolation for custom templates than previously supported bases (coding-codex, coding-opencode, coding-claude-code, coding-hermes, and langgraph). The legacy bases remain available for existing custom templates and for rebuilds of those templates. Support for them in BYOT will be removed in a future release. Sessions that use the legacy base templates as adapter default templates continue to work as usual. For more information, see How to Use a Custom Sandbox Template (BYOT).

21 September 2026

• Managed Agents is now available in public preview for all users. Managed Agents is a set of services that gives every agent its own microVM execution environment and governed tool access so that developers can scale agentic work without having to build and maintain infrastructure themselves. Developers can pick from agent harnesses that they already use (like Claude Code or agents built with frameworks like LangGraph and Hermes), securely connect it to more than 16,000 tools and have their agents do meaningful work in seconds, from the Control Panel or the DigitalOcean CLI. Teams can also register custom OCI images as sandbox templates with Bring-Your-Own-Template (BYOT).

  DigitalOcean Harness Runtime combines the functionality of a lightweight microVM, built-in tools like chromium and a coding sandbox needed by agents to do work. The product also offers rich lifecycle APIs that persist conversational history and working state across sessions, along with pause/resume/fork semantics so that developers can control costs and adapt workflows to the nonlinear quirks of agentic work.

  Action Gateway gives agents governed access to 16,000+ tools through a single managed MCP endpoint. This includes DigitalOcean-maintained tools such as Web Search, Web Fetch, Browser Automation, and DigitalOcean infrastructure management APIs, along with connectors for platforms like GitHub, HubSpot, Stripe, Snowflake, and more. Teams can also extend the catalog with their own MCP servers and internal tools.

For more information, see all Harness Runtime release notes.