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Run a Claude Code and Codex agent swarm in a 3D office with cubefarm
Leon shows cubefarm, which turns a coding agent swarm into a 3D office: Claude Code, Codex and OpenCode agents pick up GitHub issues from a Kanban board and open real pull requests.
Leon van Zyl · YouTube · published Oct 18, 2026 · Software & DevOps
▶ Watch on YouTubePrompt
Set up cubefarm so that Claude Code, Codex and OpenCode agents each take GitHub issues from the [repo] Kanban board, work on them in parallel, and open a pull request for each issue.
Visual breakdown
A coding agent swarm shown as characters in a 3D office: each agent runs a real coding harness like Claude Code or Codex, takes GitHub issues from a Kanban board, and keeps working in the background until its pull request is tested and verified.
The problem: No one said an agent harness should be boring, yet watching a swarm of coding agents usually means staring at terminals.
How the 3D agent office works
- GitHub issuesA Kanban board hooked up to real GitHub issues on an actual project
- Agents at desksEach agent runs a coding harness: Claude Code (e.g. Claude Opus), Codex or others
- Walk to a monitorGo up to any monitor in 3D space to see what that agent is running
- Pull requests on GitHubClick a card to jump to its PR; agents keep going until tested and verified
Task sourceYou, in the 3D officeCoding agentResult
What the setup needs
The video is a short demo, not a tutorial. These are the pieces it shows.
- A real project with GitHub issues
- A Kanban board hooked up to those issues
- One coding harness per agent, such as Claude Code or Codex
- Click a board card to open the agent's pull request on GitHub
Takeaways
- Agents can mix harnesses: some run Claude Code, others use other coding harnesses.
- Tying the board to GitHub issues means every card links to a real pull request.
- The agents work in the background until everything is pulled, tested and verified.
Jump to the part you need
Distilled from the video’s captions
How to try it
- Open Claude Code.
- Copy the prompt and fill in the [placeholders].
- Watch Leon van Zyl's video for the full walkthrough and setup.
Related use cases
Chase shows how Claude Projects lets you talk to one agent that manages many always-on Claude Code sessions in the cloud, sharing context and memory, with a setup demo.
Jack shows Replica, a free set of eleven Claude skills that reads an app's negative reviews, maps every screen, rebuilds it, tests each flow and fixes what users hate.
Riley shows eight everyday jobs Claude Code handles better than chat Claude: designing websites, building 3D models in Blender, editing videos and spinning up internal tools.