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The agentic development environment

Herding models.
Shipping code.

Cleetus IDE puts a Code - OSS editor, Claude and Codex agent teams, and a source-linked design studio in one workspace. Plan it, build it, review it and ship it without leaving the editor.

Get early access See the IDE
>_ plan · build · debug · ship
The Cleetus mark: a terminal prompt in a speech bubble wearing a cowboy hat
Cleetus IDE with the explorer and agent team on the left, source and a live component preview in the center, and Agent Command on the right

Source, live preview and your agent team, side by side. Save the file and the preview rebuilds from the real component.

One workspace

Build with a crew. Design with a studio.

Agent Command, Teams, Tasks, Workflows, Review and Design sit on the IDE's action rail, next to the editor, terminal, source control and debugger you already know.

Tell Cleetus what you want to build

Agent Command brings the goal composer, execution plan, active agents, live execution, tasks and reported files into one view. Pick Claude or Codex, a model and an effort, then describe the outcome and how you will verify it.

  • Every run starts with an approval you can read
  • Cards reflect saved state, never guesses about cost or progress
  • Continue any saved conversation exactly where it left off
Cleetus IDE Agent Command with a goal composer, four-step execution plan, active agents and current tasks

Give a crew a bounded goal

Pipelines for ordered handoffs, parallel members for independent work, or a Claude supervisor directing the team. Each member has its own engine, model, effort, system prompt and MCP servers, and its own Cleetus portrait.

  • Prebuilt teams for delivery, design, review, debugging and security
  • Creating a team never starts it; you approve the launch
  • Opt-in encrypted LAN collaboration with another Cleetus team
Cleetus IDE orbital Teams view with four ready members around a lead architect

Keep every task reviewable

Record goals and tasks with acceptance criteria, then run a pending task on the engine, effort and checkout you choose. Reports land in review; completion is your call, not an automatic pass.

  • Fenced ownership so expired claims can't report work
  • Dependencies finish and get approved before dependents start
  • Run tasks in Cleetus-owned worktrees, isolated from your checkout
Cleetus IDE Tasks board with pending tasks and an inspector

Workflows you can see

Turn a recipe into a saved DAG for feature work, investigation, review, tests or release prep. The canvas shows the real definition and each run's actual step states, with optional approved automation.

  • Independent steps run in parallel; dependents wait
  • Edits preserve earlier runs and their journals
  • Automation starts disabled until you approve it
Cleetus IDE workflow definition on a pan-and-zoom canvas

Review the actual changes

Load the tracked diff for an owned worktree in split or unified view, alongside its base, branch and task. Pull requests show checks, reviews and merge evidence for the current head.

  • Missing, skipped and stale checks stay distinct from a pass
  • Cleanup removes only verified clean Cleetus-owned checkouts
  • Nothing merges without you
Cleetus IDE Review with a local Git change in a split diff
Cleetus Design

Same agents. More pixels.

A component library, interactive source canvas, linked code and fixtures, and component properties, wired to the agents that build your app. Refine one real component and review every page that uses it before you adopt the change.

Cleetus the robot cowboy at a laptop: Oh he designs now…
01 / EXTRACT

Start from the code you ship

A specialist team pulls tokens, assets, components, pages and rules out of your existing source, then audits what it built.

02 / REFINE

A studio for real components

Exercise registered components with device widths, fixtures, variants and states, then hand focused, source-linked work to an agent.

03 / REVIEW

Every consumer, before adoption

Web previews render in the IDE; iOS and watchOS run in Simulator with your own Xcode toolchain.

Cleetus IDE Design with the component library, live canvas, source and properties
Availability

The IDE is in preview.

Cleetus IDE Preview

Built from official Code - OSS source with its own settings, extensions and profiles, so it lives happily next to VS Code. Signed installers are on the way, and members get them first.

Get early access

Already on VS Code? Available

The same Cleetus agents, teams and Design are available today as an extension for ordinary VS Code while the IDE finishes its preview.

Get the extension
Cleetus badge: plan, build, debug, ship
Cleetus membership

Ride with the crew.

Coming soon
  • Member features in the Cleetus IDE as they ship
  • First access to signed IDE builds
  • Directly supports Cleetus development

One Cleetus account for the website and the IDE.

Questions

Good to know.

Do I need a Claude or Codex subscription?

Yes. Cleetus runs the engines with your own account, and each engine's features and usage follow its provider's terms.

Is the IDE preview free?

Yes. Covered preview builds can be used for personal and commercial work without a license fee, and that grant does not change retroactively. Membership is for member features and future editions.

How does the IDE know I'm a member?

You sign in to the IDE with the same Cleetus account you use here, and the IDE checks your membership with the Cleetus service. Your password never leaves the Cleetus sign-in page.

Does it replace VS Code?

It can sit right beside it. The IDE keeps its own application identity, settings and extensions, and installs compatible extensions from Open VSX or a reviewed VSIX.

Can I cancel?

Any time, from the billing portal on your account page. Your membership stays active until the end of the paid period.