What is architecture-diagram?

A browser-ready technical diagram in one HTML file, using scalable drawings to show systems, cloud infrastructure, security boundaries, or network connections.

Use it to create dark-themed system, infrastructure, cloud, security, or network-topology diagrams that can be opened in a browser and exported as PNG or PDF.

It turns architecture information into a shareable visual without requiring a build tool, framework, or external images.

architecture-diagram — Skill for Claude Code by ulises-jeremias

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent

npx skills add ulises-jeremias/agent-toolkit --skill architecture-diagram

Clone the repo

git clone --depth 1 https://github.com/ulises-jeremias/agent-toolkit

Made for: Claude Code.

Or install agent-toolkit-complete, the plugin that ships this one along with the rest of its 106 skills.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

README.md

[![agentmods](https://agentmods.dev/badge/skills/ulises-jeremias/agent-toolkit/architecture-diagram/github.svg)](https://agentmods.dev/skills/ulises-jeremias/agent-toolkit/architecture-diagram)

Your own site

<a href="https://agentmods.dev/skills/ulises-jeremias/agent-toolkit/architecture-diagram"><img src="https://agentmods.dev/badge/skills/ulises-jeremias/agent-toolkit/architecture-diagram/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/skills/ulises-jeremias/agent-toolkit/architecture-diagram"><img src="https://agentmods.dev/badge/skills/ulises-jeremias/agent-toolkit/architecture-diagram.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 61 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 2,016 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits

NVIDIA SkillSpector pass 7 Sept 2026

How audits are shown

Origin original No closer match found in the catalogue.

Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

Model	Per session	Once invoked
Fable 5.1	$0.00061	$0.02016
Opus 5.5	$0.00024	$0.00806
Sonnet 5.5	$0.00012	$0.00403
Haiku 4.5	$0.00006	$0.00202

Measured 2mo ago against content hash bc2c8135543e, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

architecture-diagram scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2mo ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

plugins/agent-toolkit-complete/.github/skills/architecture-diagram/SKILL.md · 223 lines

How it starts

The opening of the file, as written. The whole thing — 223 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Architecture Diagram — Self-Contained HTML+SVG Diagrams

Create professional technical architecture diagrams as single self-contained HTML files with inline SVG graphics and CSS styling. The output renders correctly when opened directly in any modern browser — no build step, no JavaScript framework, no external images.

When to use

System, infrastructure, cloud, security, or network-topology diagrams.
A shareable, presentation-ready visual artifact is the deliverable.
Dark-theme technical aesthetic is desired.

For methodology (what to draw at each level), pair with architecture/c4-model; for lightweight in-repo text diagrams, use tooling/mermaid. This skill covers the rendered artifact case.

Workflow

Copy resources/template.html as the starting point.
Customize the <title>, header text, and footer metadata.
Adjust the SVG viewBox if needed (default 1000 x 680).
Add/reposition component boxes using the component pattern below.
Draw connection arrows early in the SVG (after the background grid) so they render behind boxes.
Update the three summary cards and legend.
Deliver one .html file.

Design system

Semantic color palette

Component type	Fill (rgba)	Stroke
Frontend	`rgba(8, 51, 68, 0.4)`	`#22d3ee`
Backend	`rgba(6, 78, 59, 0.4)`	`#34d399`
Database	`rgba(76, 29, 149, 0.4)`	`#a78bfa`
AWS/Cloud	`rgba(120, 53, 15, 0.3)`	`#fbbf24`
Security	`rgba(136, 19, 55, 0.4)`	`#fb7185`
Message bus	`rgba(251, 146, 60, 0.3)`	`#fb923c`
External/Generic	`rgba(30, 41, 59, 0.5)`	`#94a3b8`

Typography

JetBrains Mono throughout (monospace, technical aesthetic):

<link href="https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;500;600;700&display=swap" rel="stylesheet">

Font sizes: 12px component names, 9px sublabels, 8px annotations, 7px tiny labels.

Visual elements

Background: #020617 with a subtle grid pattern:

Read the full file on GitHub · 223 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

2mo ago First seen · 223 lines · 61 tokens per session scan A bc2c8135543e

Subscribe to this mod's changes

architecture-diagram is a skill published in the GitHub repository ulises-jeremias/agent-toolkit (19 stars, last pushed yesterday), licensed MIT. It adds 61 tokens to every session and 2,016 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

Claude Code Cloud Design and UX DevOps and cloud agent-toolkit ai-agents ai-tools cursor github-copilot

architecture-diagram next to 6 skills from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
architecture-diagramulises-jeremias/agent-toolkit	Skill	19	yesterday	MIT	A	61	Claude Code
architecture-diagramsexcalimate/excalimate	Skill	100	5d ago	MIT	A	59	Claude Code, Codex
aws-architecture-diagramvidanov/aws-architecture-diagram-skill	Skill	171	1mo ago	MIT	A	43	Claude Code, Codex
oci-drawio-icon-nativefrankxai/claude-skills-library	Skill	47	yesterday	MIT	A	52	Claude Code
ui-ux-designarvindand/agent-skills	Skill	17	6d ago	MIT	A	98	Claude Code
diagnose-domainoborseth/Porkbun-MCP	Skill	36	yesterday	MIT	A	72	Claude Code
change-dns-safelyoborseth/Porkbun-MCP	Skill	36	yesterday	MIT	A	93	Claude Code