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Cezar
Close the laptop; the agents keep shipping. Cezar is an open-source control center that runs Claude Code, Codex, OpenCode, Copilot, and eight other coding agents in parallel on your own server, around the clock. Every task gets an isolated git worktree, so a dozen agents edit the same repository at once without colliding, and overflow waits in a queue. You watch each run live: the agent's text, its tool calls, token counts, and reported cost stream into one cockpit covering all your projects. The workspace dashboard separates what needs your answer, what is running, and what finished, and the usage view totals spend and tokens per project so a runaway task shows up in dollars, not surprises. Repeatable playbooks are plain Markdown skill files, chained into short YAML workflows that can mix a different agent per step, add checks and gates, and open pull requests; nothing merges on its own. Hand it a GitHub issue in one click, connect Jira or Linear to launch from your tracker, and schedule recurring maintenance with automations. Flip Autonomous and a run stops asking questions and just finishes; run the same task two or three times and keep the best diff. State lives in plain files, no database, and the responsive interface works from your phone. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. MIT licensed.
Benefits
- Agents Work While You Sleep
- Running on your server around the clock means tasks finish overnight and on weekends, with results, diffs, and questions waiting in one dashboard when you return.
- Parallel Without Merge Chaos
- Each task works in an isolated git worktree on the same repository, so many agents progress simultaneously and you review clean, separate diffs instead of conflicts.
- Spend Visible Per Project
- Reported cost and input and output token totals accumulate by project and task, making the price of every automated change visible before it surprises you.
- Your Logins, No API Keys
- Cezar drives the agent CLIs you already subscribe to, including Claude Code, Codex, Copilot, and OpenCode, so parallel capacity uses existing plans, not new keys.
Features
- Live Run Streaming
- Agent text, tool calls, test results, tokens, and cost stream as work happens, with session, changes, commits, and files tabs for each running task.
- Variants And Best-Diff Review
- Launch the same task two or three times in parallel worktrees, compare the resulting diffs side by side, and keep only the implementation you prefer.
- Skills And YAML Workflows
- Markdown skill playbooks chain into portable workflow files that mix agents per step and add checks, loops, gates, and pull request creation.
- Issues, Trackers, Automations
- Launch tasks from GitHub issues, browse Jira and Linear backlogs, and schedule recurring work or event-triggered runs from tracker and repository activity.