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diagram-draw

Draw an architecture diagram grounded in the live system rather than the repository, iterate it against its own screenshots until it is actually readable, and…

Skill by MagmaMoose

IndexedApache-2.0
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Works with Claude Code, Claude apps, Codex, Cursor, Gemini CLI, GitHub Copilot, VS Code, OpenCode, Goose, Windsurf. Read the repository before you give any tool access to your data.

npx agentmarket install skill/magmamoose-diagram-draw

Asks which of your tools to add it to (Claude Code, Codex, Cursor, VS Code, Windsurf, Gemini CLI, Claude Desktop) and shows the change first. See https://agentmart.dev/cli.

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About

Draw an architecture diagram grounded in the live system rather than the repository, iterate it against its own screenshots until it is actually readable, and ship editable Excalidraw source plus the explanation underneath it.

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What this skill can do and what it asks for, from its SKILL.md. Checked Oct 25, 2026.

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Network hosts it talks to 1

  • codeload.github.com · found in install command

Files it touches

  • ~/.claude/skills/diagram-draw

What's inside

Skill name
diagram-draw
Description
Draw an architecture diagram grounded in the live system rather than the repository, iterate it against its own screenshots until it is actually readable, and ship editable Excalidraw source plus the explanation underneath it.
License
Apache-2.0
Instructions
32 lines in SKILL.md · view on GitHub

Files (1)

  • SKILL.md

SKILL.md (first lines)

Use the shared MagmaMoose diagram workflow.

Read and follow:
- `shared/diagram-draw.md`
- The target repository's `CLAUDE.md`
- The target repository's `AGENTS.md`
- The target repository's `CONTRIBUTING.md`
- Any existing diagrams in the repository, and match their conventions rather than inventing new ones
- Any `COMMON_MISTAKES` or footgun log the repository keeps

Treat target-repository hard rules as blockers. An existing diagram format or a propose-only
policy in the target repository wins over this workflow.

Expected input:
- A hint about what to diagram (a system, a repository, a flow, an environment), or nothing at
  all, which means the repository you are in.

## The two rules that carry most of the value

**Verify where every component actually runs before drawing any box.** A diagram is a claim about
reality, and the expensive error is a box in the wrong boundary, not an ugly layout. Group by
deployment boundary, never by topic: grouping by subject matter reads beautifully and invents
network boundaries that do not exist.

**Never ship the first render.** Generate, screenshot, look at the image as a reader would, fix
the worst problem, repeat. Four to six iterations is normal, each one is cheap, and shipping a
wrong one is not.

Ship the `.excalidraw` source alongside the PNG, the SVG and the markdown walkthrough. The source
is the deliverable that matters, because someone will need to change the diagram without you.

From MagmaMoose/agent-skills, Apache-2.0.

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Last commit (this folder)
Sep 12, 2026 (1 month ago)
Last release
Oct 23, 2026 (8 days ago)

From GitHub (fetched Oct 24, 2026).

Details

License
Apache-2.0
First seen
Oct 24, 2026
Last checked
Oct 24, 2026

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diagram-draw skill. Agent Mart. https://agentmart.dev/skills/magmamoose-diagram-draw (last updated 2026-10-24)