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Cyrus is a critical piece of infrastructure in the agentic developer tool stack. It specifically addresses the "deployment gap" for command-line agents. While many agents are powerful in a vacuum, they often lack a reliable way to interact with the existing team communication and project management tools used by engineers. Cyrus bridges this by turning a CLI-based agent into a service that is responsive to webhooks and issue tracker events.
Furthermore, Cyrus is a significant proponent of the Model Context Protocol (MCP). By implementing MCP support early, it demonstrates how agents can be given granular, secure access to non-code business data. This makes it a useful reference for anyone building agents that require "multi-tool" capabilities. It sits at the intersection of agent orchestration and developer experience (DevEx), pushing the industry toward a future where agents are not just chat interfaces, but background workers integrated into the standard Git-based development lifecycle.
Claude Code is Anthropic’s high-performance CLI tool for software development, but it carries a fundamental friction: it is designed to run locally. This requires a developer to keep a terminal session active and manually supervise the agent as it works through a codebase. Cyrus, developed by Ceedar AI, is an open-source agentic layer designed to remove this physical dependency. It acts as a gateway that allows Claude Code to operate as a persistent, background service triggered by external signals rather than manual terminal commands.
At its core, Cyrus is an orchestration engine for developer tasks. The primary workflow involves monitoring a Linear workspace for issues assigned to a specific "Cyrus" user. Once a ticket is assigned, the system automatically initializes an isolated Git worktree for that specific task. This approach prevents the agent from contaminating the main development environment or creating conflicting file changes. Cyrus then instructs Claude Code to process the issue, generate the necessary logic, and post comments or pull requests back to the team for review.
Cyrus is built with a modular EdgeWorker architecture, making it lightweight and capable of running in various cloud environments or as a self-hosted instance. One of its most distinctive features is its integration with the Model Context Protocol (MCP). By supporting MCP, Cyrus allows Claude to reach outside the immediate codebase to pull context from other business services. This includes checking payment data via Stripe, monitoring server health through BetterStack, or querying internal databases.
This context-awareness is what separates Cyrus from simpler automation scripts. Because it can "see" the state of the broader business through MCP, the agent can make more informed decisions about the code it writes. If an issue in Linear describes a bug in a subscription flow, Cyrus can theoretically check the Stripe API to confirm if the reported behavior matches the actual data before attempting a fix.
Ceedar AI, the company behind Cyrus, was founded in 2023 by Connor Turland and Pegah Vaezi. Based in Victoria, British Columbia, the team originally focused on AI-powered bookkeeping services for digital businesses. The development of Cyrus appears to be a technical pivot or an expansion into the developer productivity market, born from the team's internal need to automate repetitive engineering tickets.
The tool is currently used by engineering teams at companies like Retool, Airbyte, and Suno. Its market position is unique because it doesn't try to replace the developer's IDE. Instead, it targets the "issue backlog," where well-specified but routine tasks often sit for weeks. By offloading these to a background agent that interacts via Slack and Linear, teams maintain high velocity without the overhead of context switching. For security-conscious teams, Cyrus provides SOC 2 Type I compliance and Git-level isolation, ensuring that even as an agentic tool, it follows standard enterprise safety protocols.
An open-source agent that automates software development tasks through Linear and Claude Code.
Receive real-time events from GitHub, Linear, Slack, Discord, Telegram, Email, and more directly in your Claude Code sessions.
surfacing fun insights from the Claude Code SDK
A simple hello world project for demonstrating PR creation
The Claude Code background agent for Linear, Slack, Github, GitLab etc. you deploy anywhere. Supports Codex, Cursor and Gemini too.
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