skeeper: Skill for Claude Code

.agents/skills/architecture-diagram/SKILL.md

architecture-diagram is a skill for Claude Code, Codex from compozy/skeeper. It costs 55 tokens per session (1,839 once invoked), scanned A, a copy of architecture-diagram, MIT.

A guide for creating standalone dark-themed architecture diagrams as HTML files with inline SVG graphics. Architecture diagrams show how software parts such as frontends, backends, databases, and cloud services fit together.

In plain words
What is it for?
Use it to document infrastructure, networks, security boundaries, cloud systems, databases, and message-based communication.
Why use it?
It provides consistent visual rules for explaining system structure, connections, and component types in a technical diagram.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: installed under .agents/ (shared by several agents).

This is compozy/skeeper's own configuration. It tells Claude Code and Codex how to work on skeeper itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything skeeper configures →

Reuse

Borrowing it

Nothing to install: this file belongs to compozy/skeeper. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/compozy/skeeper/main/.agents/skills/architecture-diagram/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/compozy/skeeper

Made for: Claude Code, Codex.

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.

agentmods badge for architecture-diagram

README.md
[![agentmods](https://agentmods.dev/badge/skills/compozy/skeeper/architecture-diagram.svg)](https://agentmods.dev/skills/compozy/skeeper/architecture-diagram)
Your own site
<a href="https://agentmods.dev/skills/compozy/skeeper/architecture-diagram"><img src="https://agentmods.dev/badge/skills/compozy/skeeper/architecture-diagram.svg" alt="Measured on agentmods" height="20"></a>
Per session 55 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,839 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin 100% copy Near-identical to another mod 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00055 $0.01839
Opus 5 $0.00028 $0.00920
Sonnet 5 $0.00011 $0.00368
Haiku 4.5 $0.00006 $0.00184

Measured 6d ago against content hash c81c24a80764, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, 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 6d 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.

Origin

This is a copy

100% identical to architecture-diagram — 0 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

.agents/skills/architecture-diagram/SKILL.md · 164 lines

How it starts

The opening of the file, as written. The whole thing — 164 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Architecture Diagram Skill

Create professional technical architecture diagrams as self-contained HTML files with inline SVG graphics and CSS styling.

Design System

Color Palette

Use these semantic colors for component types:

Component Type Fill (rgba) Stroke
Frontend rgba(8, 51, 68, 0.4) #22d3ee (cyan-400)
Backend rgba(6, 78, 59, 0.4) #34d399 (emerald-400)
Database rgba(76, 29, 149, 0.4) #a78bfa (violet-400)
AWS/Cloud rgba(120, 53, 15, 0.3) #fbbf24 (amber-400)
Security rgba(136, 19, 55, 0.4) #fb7185 (rose-400)
Message Bus rgba(251, 146, 60, 0.3) #fb923c (orange-400)
External/Generic rgba(30, 41, 59, 0.5) #94a3b8 (slate-400)

Typography

Use JetBrains Mono for all text (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 for component names, 9px for sublabels, 8px for annotations, 7px for tiny labels.

Visual Elements

Background: #020617 (slate-950) with subtle grid pattern:

<pattern id="grid" width="40" height="40" patternUnits="userSpaceOnUse">
  <path d="M 40 0 L 0 0 0 40" fill="none" stroke="#1e293b" stroke-width="0.5"/>
</pattern>

Component boxes: Rounded rectangles (rx="6") with 1.5px stroke, semi-transparent fills.

Security groups: Dashed stroke (stroke-dasharray="4,4"), transparent fill, rose color.

Region boundaries: Larger dashed stroke (stroke-dasharray="8,4"), amber color, rx="12".

Arrows: Use SVG marker for arrowheads:

<marker id="arrowhead" markerWidth="10" markerHeight="7" refX="9" refY="3.5" orient="auto">
  <polygon points="0 0, 10 3.5, 0 7" fill="#64748b" />
</marker>

Arrow z-order: Draw connection arrows early in the SVG (after the background grid) so they render behind component boxes. SVG elements are painted in document order, so arrows drawn first will appear behind shapes drawn later.

Read the full file on GitHub · 164 lines

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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.

  1. 6d ago First seen · 164 lines · 55 tokens per session scan A c81c24a80764

Subscribe to this mod's changes

architecture-diagram is a skill published in the GitHub repository compozy/skeeper (85 stars, last pushed 3mo ago), licensed MIT. It adds 55 tokens to every session and 1,839 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to architecture-diagram, differing in 0 lines, and is treated as a copy.

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