plangolin

A system map for agent plans

See your agent's next move.

Plangolin turns a dense implementation plan into the small set of system changes you actually need to approve.

Install Plangolin

Paste these into your terminal, then run /plangolin.

claude plugin marketplace add jakekeech/plangolin
claude plugin install plangolin@plangolin

Watch the review

How it works

From a prompt to a boundary you approved.

  1. 01

    Start with a normal prompt.

    Ask Claude Code for the change you already wanted. Plangolin reviews the plan it produces.

  2. 02

    See the system change.

    The graph exposes dependencies, missing pieces, and work that quietly grew beyond your request.

  3. 03

    Keep what belongs.

    Accept or reject each proposal. The boundary you approved returns before implementation begins.

Compatibility

Built for the workflow you already have.

FAQ

Before you install.

What exactly am I approving?

The proposed shape of the change: components, responsibilities, connections, and scope. Plangolin does not decide whether the implementation itself is correct.

Does Plangolin replace Claude Code?

No. It adds a review step between the finished plan and implementation, then returns the accepted scope to Claude Code.

Does it change my code during review?

No. Claude waits while you review, then receives the approved scope and an explicit list of what is out of scope.

What leaves my machine?

Repository analysis and graph construction happen locally. The hosted service receives the plan, file paths, dependency information, and short excerpts needed for model-assisted review—not your entire repository.

What do I need to run it?

Claude Code and Node 20 or newer. You do not need a Plangolin account, an API key, or a build step.

Which projects does it support?

Plangolin reads JavaScript, TypeScript, Python, and Go projects, one project directory at a time.

What happens if a review cannot finish?

Network or model failures are shown instead of being written into your sheet. An unanswered review times out after ten minutes and lets Claude continue with its original plan.

Can I use it with Codex?

Not yet. Claude Code is supported today, and Codex is the next verified integration.

Early access

Try it on your next real plan.

No account. No new planning ritual. Install the plugin, then ask Plangolin to review the next change you were already going to build.

View on GitHub

Install Plangolin

Paste these into your terminal, then run /plangolin.

claude plugin marketplace add jakekeech/plangolin
claude plugin install plangolin@plangolin