Symphony is an open-source specification from OpenAI that orchestrates Codex agents to automate software development workflows. It connects issue trackers like Linear to coding agents, enabling each task to run autonomously in its own workspace from assignment to pull request. This turns task trackers into always-on systems for agentic work, allowing developers to focus on review and direction.
Symphony
An open-source spec for Codex orchestration
Symphony Introduction
Key Features
- Automates task execution from issue trackers to pull requests
- Isolated per-issue workspaces for independent agent execution
- Continuous monitoring and assignment of new work without manual triggering
- Keeps workflow policy in-repo via WORKFLOW.md for versioned prompts
- Minimal orchestration layer designed as a reference implementation
Use Cases
- Engineering teams using issue trackers to automate routine coding tasks
- Open-source maintainers delegating bug fixes and feature implementations to AI agents
- Startups accelerating development cycles by reducing manual coding effort
- Organizations exploring AI-driven software delivery pipelines
Why Startups Use It
Startups need to move fast with limited resources. Symphony automates routine development tasks, freeing engineers to focus on higher-level work. Its open-source nature allows customization without vendor lock-in, ideal for lean teams.
Alternative Options
Harness Engineering, GitHub Actions, Jenkins, Buildkite, AWS CodePipeline
Frequently Asked Questions
What is Symphony?
Symphony is an open-source specification for orchestrating Codex agents via issue trackers like Linear, automating the lifecycle from issue to pull request.
How does Symphony differ from other coding agents?
It provides a structured orchestration layer that works with existing project management tools, enabling continuous autonomous execution.
Is Symphony maintained as a standalone product?
No, it's a reference implementation; OpenAI encourages developers to build their own versions.
What tools does Symphony integrate with?
Currently specified for Linear, but the concept can be extended to other issue trackers.
How does Symphony ensure isolation?
Each task runs in its own isolated workspace with its own context and lifecycle.
More About Symphony
PricingPaid
Listed DateJul 06, 2026
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