diagram-design is by cathrynlavery — not by us.
We indexed this project so people can find it. We are not selling it, we host no copy of the code, and we are not affiliated with or endorsed by its authors — get it from them.
Indexed Oct 12, 2026 · 51,865 stars at index time. Maintainers: claiming verifies your identity and unlocks a higher assurance tier. Removal requests are honored.
AI agent · for humans & their agents
diagram-design
unclaimed listingactively maintainedFreeMIT
Editorial diagram design for Claude Code, Codex, GitHub Copilot, Cursor, Factory Droid, and Pi. 44 diagram types. Self-c
by Open Source Community · New publisher
Every claim on this page is refundable if it is untrue — refund policy.
cathrynlavery/diagram-design is an open-source project by cathrynlavery: Editorial diagram design for Claude Code, Codex, GitHub Copilot, Cursor, Factory Droid, and Pi. 44 diagram types. Self-contained HTML + SVG. No shadows. No Mermaid slop.. Indexed here so it can be found — not resold.
It is free. Get it from the upstream repository: https://github.com/cathrynlavery/diagram-design
From the project's own README (excerpt, reproduced for discovery under its MIT license):
An agent skill that draws diagrams as one self-contained HTML + SVG file, in your brand. 44 diagram types. No shadows. No Mermaid slop.
Website · Gallery · Changelog
Install · What it makes · Quickstart · Match your brand · Import · Export · Contributing
npx skills add cathrynlavery/diagram-design
Ask your agent in plain words: • "Make me an architecture diagram of my app: frontend, backend, database, Redis cache." • "I need a quadrant showing Q2 projects by impact vs effort." • "Give me a sequence of a bearer call with token refresh on 401." • "Onboard diagram-design to https://yoursite.com" (pulls your palette and fonts so every diagram after this one matches your site)
The agent picks the type, states its plan, and writes one .html file you can open by double-clicking.
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Install
Works with any host that reads Agent Skills, including Cursor, Claude Code, Codex, GitHub Copilot, Gemini CLI, Cline, Windsurf and Amp:
In Claude Code, the plugin marketplace gets you updates and the slash commands:
Official builds come only from this repository. LittleMight, Cathryn Lavery's company, publishes the plugin directory listings; a listing under any other name is an unofficial copy. PRIVACY.md lists what the skill sends over the network.
Claude Code : turn on auto-update
After installing, run /plugin, open Marketplaces, select diagram-design, and choose Enable auto-update. Claude Code disables auto-update by default for third-party marketplaces; after this toggle, it refreshes the marketplace and installed plugin in the background after startup. Run /reload-plugins when prompted, or let the next session load the update.
Cursor , Cline, Gemini CLI, Windsurf, Amp, Zed, Warp, Roo, Kilo and other Agent Skills hosts…
Preview
See what it does before you commit. Previews show behavior, never source code.
01Capabilities
Does
- No capabilities recorded
Doesn’t
- No exclusions declared
02Requirements & stack
Depends on
No declared dependencies
Credentials needed
None declared
Stack
03Community
No endorsements yetNo verified confirmations yet — be the first.
Confirmations come from verified purchasers, installers, vetted reviewers, or an installation outcome your org reported through the agent tools. They grade quality — security is verified separately, and community votes can never override the security gate.
Sign in to confirm — weight comes from verified usage, not vote count.
Issues 0
Open an issueNobody has reported anything yet — a success counts as a report too.
04Trust Passport
Full passport →0/0 automated components pass. An automated score is never a security guarantee.
This listing is unclaimed, so publisher identity cannot be verified and it stays below the “verified” tier by design — that is a statement about the listing, not about the project’s quality. Our automated scans still ran; a maintainer who claims it unlocks identity verification.
05Versions
Full history →| Version | Channel | Released | Notes |
|---|---|---|---|
| 0.0.0 | stable | Oct 12, 2026 | Indexed listing — see the upstream repository for real release history. |