Symphony
SHA-256Symphony turns project work into isolated, autonomous implementation runs, letting teams manage work instead of supervising coding agents.
Smart Download
Download Download Version
v0.0.2 · 16.1 MB
Turn project work into autonomous AI runs; manage work, not coding agents.
Core Features
- Autonomous implementation runs in isolated environments
- Proof-of-work evidence: CI status, PR reviews, complexity analysis, walkthrough videos
- Safe PR landing with automated checks and acceptance gates
- Board-driven execution (Linear integration) with zero manual task assignment
What It Can't Do
- •This is an engineering preview designed for trusted environments only. It assumes your codebase already follows harness engineering principles. Also, ensure strict access controls on your repo and board because agents can create branches, push code, and merge PRs automatically.
Use Cases
- Triage and complete backlog items in harness-engineered codebases
- Shift from supervising AI agents to managing task acceptance at scale
Detailed Introduction
Symphony is an open-source framework from OpenAI that transforms project work into isolated, autonomous implementation runs. Instead of watching over a coding agent line by line, teams define what needs to be done and let Symphony spawn agents to handle tasks, collect proof of work (CI status, PR reviews, complexity analysis, walkthrough videos), and safely land accepted PRs. It works best in codebases that have adopted harness engineering. You can either ask your favorite coding agent to build Symphony from the spec, or run the experimental Elixir implementation. Designed for trusted environments, it is currently an engineering preview.
Tags
Getting Started
Download installer
Click the button above to download the installer for your system
Install the software
Install the appropriate package for your distro (dpkg / rpm / AppImage)
Step 1: Visit https://github.com/openai/symphony and review SPEC.md or elixir/README.md
Step 2: Provide SPEC.md to your coding agent (e.g., Codex) to generate a custom Symphony build
Step 3: Alternatively, follow elixir/README.md to set up and run the experimental Elixir implementation
- Step 1: Visit https://github.com/openai/symphony and review SPEC.md or elixir/README.md
- Step 2: Provide SPEC.md to your coding agent (e.g., Codex) to generate a custom Symphony build
- Step 3: Alternatively, follow elixir/README.md to set up and run the experimental Elixir implementation
SHA-256 checksum verified
Checksum extracted from GitHub official Release page
SHA256 Checksum
bace377e92b7c244a29da15a88f517c7722ca69e249068395f77ce6912ef39ebThis checksum is extracted from the GitHub Release page. Verify file integrity after download.
All SHA-256 checksums on this platform are extracted from the project's official GitHub Release page, without any modification. You can independently verify them on the GitHub Releases page.
Open Source Transparency
View GitHub SourceUninstall Info
Symphony runs as a framework in your own infrastructure; there is no single installer. To uninstall, stop its processes or services, delete the code directory and configuration files, and remove any dependencies if you used the Elixir implementation.
No Extra Dependencies
Ready to use after download. No additional runtime required.
Similar Projects
codex
OpenAI's lightweight coding agent that runs locally in your terminal, with no IDE dependency and seamless ChatGPT integration.
Visual Studio Code (Code - OSS)
A free, open-source code editor by Microsoft with rich extensions, debugging, and Git integration. The most popular developer tool worldwide.
opencode
OpenCode is a free, open-source AI coding agent that helps you write, refactor, and understand code. It offers two built-in modes: a full-access 'build' agent for active coding and a read-only 'plan' agent for safe exploration.