Orca: Orchestrating Fleets of Coding Agents Across Parallel Worktrees and Runtimes
Orca by stablyai is an open-source orchestrator designed to run multiple CLI coding agents concurrently across isolated git worktrees, mobile apps, and remote S
In modern software engineering, managing complex programming workflows increasingly involves orchestrating multiple autonomous AI agents simultaneously rather than relying on a single coding assistant. Orca, an open-source project published under the MIT License by stablyai, introduces a unified desktop, mobile, and remote runtime workspace designed to run and track diverse CLI coding agents side-by-side using a developer's own subscriptions. The platform supports any terminal-based tool, allowing systems such as Claude Code, Codex, Grok, Antigravity, and Pi to operate concurrently within a structured multi-agent ecosystem.
Parallel Worktrees and High-Performance Terminal Infrastructure
A core capability highlighted in Orca is parallel git worktree support. Instead of evaluating solutions sequentially, developers can fan out a single prompt across up to five agents simultaneously, each operating inside its own isolated git worktree. Users compare competing outputs side-by-side and merge the winning patch. Orca pairs this workflow with Ghostty-class WebGL terminals supporting infinite splits and persistent scrollback, alongside a built-in VS Code editor surface with autosave and drag-and-drop file ingestion into prompts.
Design Mode, Remote SSH Workspaces, and Native Integrations
Orca extends beyond local terminals with visual and remote tooling. Its Design Mode lets developers click UI elements in Chromium to send HTML, CSS, and cropped screenshots directly into an agent's context. For heavier workloads, SSH worktrees run agents on remote machines with full file editing, git, auto-reconnect, and port forwarding. Native GitHub and Linear integration enables browsing issues and PRs without context switching, while diff annotation allows line-by-line review comments to be fed back to agents.
Automation Controls and Fast-Paced Delivery Caveats
Orca provides CLI automation via orca worktree create, snapshot, click, and fill, alongside Computer Use for desktop UIs, mobile companion apps for iOS and Android, and account switching with rate-limit tracking for Claude and Codex. However, the README explicitly notes that the team ships daily, warning that static docs remain perpetually behind. Adopters should rely directly on the official release changelog to verify supported features and active operational behaviors.