Orca: the ADE for orchestrating a fleet of coding agents in parallel

Stably AI has released Orca, an open-source Agent Development Environment under the MIT license. Orca allows users to orchestrate a fleet of CLI agents, including Claude Code, Codex, Gemini, Grok, and Cursor CLI, in parallel. By isolating each agent within its own git worktree, the system enables developers to compare multiple proposed solutions simultaneously and merge the most effective one. This ADE is specifically designed for parallel agent workflows rather than traditional line-by-line manual coding.