Firstmate is an open-source agent distro that acts as a central orchestration layer for managing multiple autonomous coding agents.
It allows users to interact with a single liaison agent that dispatches, supervises, and reconciles tasks across isolated git worktrees, effectively eliminating the need for manual terminal tab-juggling.
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Single liaison agent for fleet orchestration
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Zero-token event-driven supervision via bash watcher
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Isolated git worktrees for parallel task execution
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Restart-proof state management on disk
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Optional Relay for public X and Discord mention handling
Free
Firstmate is open-source and free to use under the MIT license. Users are responsible for the costs associated with the underlying coding agent harnesses (e.g., Claude Code, Grok, Pi) and any API usage fees they incur.
Best for
Developers who need to manage multiple parallel coding tasks, investigations, or project-wide audits without manual context-switching or terminal management.
Not ideal for
Users seeking a simple, one-click GUI application, as Firstmate is a terminal-based distro requiring Git, GitHub CLI, and a supported agent harness.
A powerful, disciplined orchestration layer that transforms general-purpose coding agents into a coordinated crew, ideal for power users who prioritize structural isolation and automated supervision over simple app-based workflows.
Recent updates include a corrective lease fix for treehouse worktree slots to prevent concurrent tasks from colliding, and ongoing refinements to the supervision and backend dispatch protocols.
As of
Is firstmate free?+
Yes - firstmate is Free. Firstmate is open-source and free to use under the MIT license. Users are responsible for the costs associated with the underlying coding agent harnesses (e.g., Claude Code, Grok, Pi) and any API usage fees they incur.
Is firstmate open source?+
Yes - firstmate is open source. Firstmate is open-source and free to use under the MIT license. Users are responsible for the costs associated with the underlying coding agent harnesses (e.g., Claude Code, Grok, Pi) and any API usage fees they incur.
Who is firstmate best for?+
Developers who need to manage multiple parallel coding tasks, investigations, or project-wide audits without manual context-switching or terminal management.
Who is firstmate not ideal for?+
Users seeking a simple, one-click GUI application, as Firstmate is a terminal-based distro requiring Git, GitHub CLI, and a supported agent harness.
What are the best firstmate alternatives?+
The closest firstmate alternatives on ai.dosa.dev are Jules, OpenHands, SWE-agent - all listed under Autonomous & Async Agents.
Who makes firstmate?+
firstmate is developed by kunchenguid. It is listed in the Autonomous & Async Agents category on ai.dosa.dev.
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