# stack-diagram, an agent skill that turns one sentence into an architecture diagram with official logos

Canonical: https://theagenticweekly.com/news/stack-diagram-agent-skill-architecture-diagrams · Evidence: Reported · First seen: 2026-11-02 02:04 UTC · Source published: 2026-11-01 05:58 UTC · Brief published: 2026-11-04 20:16 UTC · Updated: 2026-11-04 20:16 UTC · Author: Agentic Weekly

> stack-diagram is an MIT-licensed agent skill first released on GitHub on November 1, 2026, with v0.4.0 on November 3. You describe a stack in a sentence and the agent produces a light and dark architecture diagram using official logos; it installs with "npx skills add caru-ini/stack-diagram".

## What changed

- Four releases in three days: v0.1.0 on November 1, 2026, AWS icons in v0.2.0 the same day, a diagram gallery in v0.3.0 on November 2, and Google Cloud and Azure icon sources in v0.4.0 on November 3.
- It installs with npx skills add caru-ini/stack-diagram and, per the README, works with Claude Code, Codex, Cursor and other agents that support skills; in the Claude apps you upload a zip from the releases page.
- Logos are fetched at build time from svgl, devicon, gilbarbara/logos or the brand's own repository, and cloud icons from AWS, Google Cloud and Azure's own packages; the README says they are never recolored or redrawn.
- Output is one self-contained HTML file by default, rendered in light and dark themes, with PNG (via Playwright and Chromium), a React component or a Claude artifact as alternatives; it needs Python 3.9+.
- After drawing, the agent offers to post the diagram to a public gallery at stacks.caru.moe, and the README says it posts only after you say yes twice and never sends your prompt.

## In the source's words

> "Describe your stack in a sentence. Get an architecture diagram with official logos."
> (stack-diagram README (GitHub), https://github.com/caru-ini/stack-diagram)

> "Lines are routed around labels, and the agent renders the diagram and checks it before handing it over."
> (stack-diagram README (GitHub), https://github.com/caru-ini/stack-diagram)

## What we have not verified

- We did not install the skill or generate a diagram with it.
- Compatibility with agents other than those named in the README was not checked.
- We did not review what the public gallery stores beyond the README's description.

## Timeline

- Source published: 2026-11-01 05:58 UTC
- First seen by our watcher: 2026-11-02 02:04 UTC (via GitHub discovery sweep; primary source is the GitHub repository)
- Brief published: 2026-11-04 20:16 UTC

## Sources

- [stack-diagram repository and README on GitHub](https://github.com/caru-ini/stack-diagram) (primary source) (fetched 2026-11-04)
- [stack-diagram v0.4.0 release](https://github.com/caru-ini/stack-diagram/releases/tag/v0.4.0) (primary source) (fetched 2026-11-04)

## Related

- [Claude Code: verdict and setup guide](https://theagenticweekly.com/tools/claude-code)
- [Codex CLI: verdict and setup guide](https://theagenticweekly.com/tools/codex-cli)
- [Cursor: verdict and setup guide](https://theagenticweekly.com/tools/cursor)
- [All news briefs](https://theagenticweekly.com/news)
- [This week's releases](https://theagenticweekly.com/this-week)
- [New AI models this week](https://theagenticweekly.com/models/this-week)

## How to cite

Agentic Weekly, "stack-diagram, an agent skill that turns one sentence into an architecture diagram with official logos", published 2026-11-04 20:16 UTC, https://theagenticweekly.com/news/stack-diagram-agent-skill-architecture-diagrams