Symphony

symphony

Rust orchestration engine that polls issue trackers (Linear, GitHub), creates isolated workspaces, and runs coding agents automatically.

Install

cargo install symphony-cli                # from source
curl -fsSL https://raw.githubusercontent.com/broomva/symphony/master/install.sh | sh  # binary
docker pull ghcr.io/broomva/symphony:latest  # container

Quick Start

symphony init                          # scaffold WORKFLOW.md (Linear default)
symphony init --tracker github          # GitHub Issues template
symphony validate WORKFLOW.md           # verify config
symphony start WORKFLOW.md              # run daemon

Key Capabilities

• Tracker integration -- Linear and GitHub Issues out of the box; extensible via TrackerClient trait.
• Lifecycle hooks -- after_create, before_run, after_run, before_remove with timeout enforcement.
• Control metalayer -- CONTROL.md with setpoints, sensors, and feedback loops for grounded agent development.
• Concurrency & retry -- Slot-based dispatch with configurable max_concurrent_agents; exponential backoff on failure.
• Live dashboard -- HTTP server with HTML dashboard and REST API for state, issues, and manual refresh.
• Arcan runtime -- Optional dispatch through the Arcan HTTP daemon instead of local subprocesses.

Agent Lifecycle

Poll tracker -> fetch active issues -> sort by priority -> dispatch workers
    |-- after_create hook (clone repo)
    |-- before_run hook (rebase)
    |-- render prompt + run agent (max_turns)
    |-- after_run hook (commit, push, create PR)
    |-- pr_feedback hook (capture review comments)
    |-- done_state transition (auto-close issue)
    +-- retry (1s continuation / exponential backoff)

License

Apache-2.0