https://github.com/openai/symphony

Symphony turns project work into isolated, autonomous implementation runs, allowing teams to manage work instead of supervising coding agents.
https://github.com/openai/symphony

Last synced: 3 months ago
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Symphony turns project work into isolated, autonomous implementation runs, allowing teams to manage work instead of supervising coding agents.

• Host: GitHub
• URL: https://github.com/openai/symphony
• Owner: openai
• License: apache-2.0
• Created: 2026-02-26T21:54:00.000Z (4 months ago)
• Default Branch: main
• Last Pushed: 2026-03-05T01:24:58.000Z (3 months ago)
• Last Synced: 2026-03-09T23:37:06.440Z (3 months ago)
• Language: Elixir
• Size: 28.8 MB
• Stars: 10,269
• Watchers: 80
• Forks: 746
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE
  • Notice: NOTICE

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README

          
# Symphony

Symphony turns project work into isolated, autonomous implementation runs, allowing teams to manage

work instead of supervising coding agents.

[![Symphony demo video preview](.github/media/symphony-demo-poster.jpg)](.github/media/symphony-demo.mp4)

_In this [demo video](.github/media/symphony-demo.mp4), Symphony monitors a Linear board for work and spawns agents to handle the tasks. The agents complete the tasks and provide proof of work: CI status, PR review feedback, complexity analysis, and walkthrough videos. When accepted, the agents land the PR safely. Engineers do not need to supervise Codex; they can manage the work at a higher level._

> [!WARNING]

> Symphony is a low-key engineering preview for testing in trusted environments.

## Running Symphony

### Requirements

Symphony works best in codebases that have adopted

[harness engineering](https://openai.com/index/harness-engineering/). Symphony is the next step --

moving from managing coding agents to managing work that needs to get done.

### Option 1. Make your own

Tell your favorite coding agent to build Symphony in a programming language of your choice:

> Implement Symphony according to the following spec:

> https://github.com/openai/symphony/blob/main/SPEC.md

### Option 2. Use our experimental reference implementation

Check out [elixir/README.md](elixir/README.md) for instructions on how to set up your environment

and run the Elixir-based Symphony implementation. You can also ask your favorite coding agent to

help with the setup:

> Set up Symphony for my repository based on

> https://github.com/openai/symphony/blob/main/elixir/README.md

---

## License

This project is licensed under the [Apache License 2.0](LICENSE).