Sideshow CLI
sideshow
A live visual surface for a terminal agent: diagrams, interface sketches, Markdown, code and data in the browser. A local server, Node.js 22.18+
- 626 ★ on the repository
- Last commit
- MIT
Extended access
Why this level
- Node.js 22.18 or newer is needed
- The agent sends content to a local server
Install
- Works in
In your terminal, with SkillFoxx CLI
npx skillfoxx add cli/sideshowDetects the agents on your machine, shows the access level and pins the version.
Other ways to install
Access and checks
How we reviewExtended accessThe tool runs code or makes network calls and only reads external data.
- Node.js 22.18 or newer is needed
- The agent sends content to a local server
This is third-party code. Review the repository files before installing.
What it does
Sideshow is a live visual surface for a terminal agent: the agent shows diagrams, interface sketches, rendered Markdown, highlighted code and data in the browser on a local server. Launch: `npm install`, then `npx sideshow serve --open` (viewer on port 8228), demo: `npx sideshow demo`. Node.js 22.18 or newer is needed. Version 0.14.0 from 07.09.2026, MIT license.
Who it is for. For developers who work with an agent in the terminal and want to see the result as a diagram, mockup or table and not text.
Good fit when
- A terminal agent should show diagrams and mockups
- You need a preview of Markdown and code next to the chat
- You need to discuss interface sketches with an agent
Not a fit when
- You have no Node.js 22.18 or newer
- You need cloud viewing for a team: the server is local
Example request
Show through Sideshow a service architecture diagram and a sketch of the sign-in screenLimitations
The server is local and runs on your machine, Node.js 22.18 or newer is needed. The agent sends content to it for display, so access is extended: do not pass secrets.
How to disable. Remove the skill from the agent's folder or the plugin through the plugin manager.
FAQ
What does Sideshow do?
It shows a terminal agent's results as diagrams, mockups, Markdown, code and data in the browser.
How do I launch it?
npx sideshow serve --open, viewer on port 8228.
Is there a demo?
Yes, npx sideshow demo.
Discussion
No questions or reviews yet.
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Comparison with similar tools
Entries that share the main search query, and how they differ.
| Entry | Official | Authentication | Repository stars | Main difference |
|---|---|---|---|---|
| Sideshow (this entry) | no | 626 | ||
| Oh-my-mermaid | no | 3,176 | Mermaid architecture diagrams from a codebase | |
| Markmap MCP Server | no | not required | 289 | mind maps from Markdown with export |
| CharDesk | no | 453 | a Unicode character canvas for people and agents |
README in short
The README describes a local visual surface server for agents with serve and demo commands. MIT license.