tech-diagram

tech-diagram is a skill for Claude Code, Codex from thatrebeccarae/claude-marketing. It costs 57 tokens per session (1,152 once invoked), scanned A, original, MIT.

A tool for generating technical diagrams as standalone HTML files, including architecture diagrams, system illustrations, and process flows.

In plain words
What is it for?
Use it to draw data pipelines, CI/CD flows, infrastructure layers, system components, migrations, timelines, and metric summaries.
Why use it?
It turns complex systems and workflows into visual explanations that are easier to inspect and share.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: reads .claude/ paths; mentions Claude Code.

Good fit Use it to draw data pipelines, CI/CD flows, infrastructure layers, system components, migrations, timelines, and metric summaries.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/thatrebeccarae/claude-marketing/tech-diagram
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 thatrebeccarae/claude-marketing --skill tech-diagram
Clone the repo
git clone --depth 1 https://github.com/thatrebeccarae/claude-marketing

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 tech-diagram

README.md
[![agentmods](https://agentmods.dev/badge/skills/thatrebeccarae/claude-marketing/tech-diagram/github.svg)](https://agentmods.dev/skills/thatrebeccarae/claude-marketing/tech-diagram)
Your own site
<a href="https://agentmods.dev/skills/thatrebeccarae/claude-marketing/tech-diagram"><img src="https://agentmods.dev/badge/skills/thatrebeccarae/claude-marketing/tech-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.

agentmods 80×15 button for tech-diagram

Your own site · 80×15
<a href="https://agentmods.dev/skills/thatrebeccarae/claude-marketing/tech-diagram"><img src="https://agentmods.dev/badge/skills/thatrebeccarae/claude-marketing/tech-diagram.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 57 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,152 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.
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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00057 $0.01152
Opus 5 $0.00028 $0.00576
Sonnet 5 $0.00011 $0.00230
Haiku 4.5 $0.00006 $0.00115

Measured 9d ago against content hash 851d6c593770, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

tech-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 9d 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.

skills/tech-diagram/SKILL.md · 143 lines

How it starts

The opening of the file, as written. The whole thing — 143 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Technical Diagram Generator

Generate technical architecture diagrams and system illustrations as standalone HTML files with embedded CSS + inline SVG. No external dependencies.

Install

git clone https://github.com/thatrebeccarae/claude-marketing.git && cp -r claude-marketing/skills/tech-diagram ~/.claude/skills/

Core Capabilities

  • Pipeline flow diagrams (data pipelines, CI/CD, ETL)
  • Layer/stack diagrams (tech stack, OSI model, infrastructure)
  • Component diagrams (microservices, system architecture)
  • Before/after split comparisons
  • Timeline diagrams (roadmaps, migration phases)
  • Metric callout rows (KPI summaries)

Design System

Color Tokens

:root {
  /* Dark mode (default canvas) */
  --bg-deep: #0d1117;
  --bg-surface: #161b22;
  --bg-elevated: #21262d;
  --border-subtle: rgba(240, 246, 252, 0.1);
  --text-bright: #f0f6fc;
  --text-secondary: #8b949e;
  --text-muted: #6e7681;

  /* Accent palette */
  --accent-blue: #58a6ff;
  --accent-green: #3fb950;
  --accent-purple: #bc8cff;
  --accent-orange: #d29922;
  --accent-red: #f85149;
  --accent-cyan: #39d2c0;
  --accent-pink: #f778ba;

  /* Light mode (optional, for embedded diagrams) */
  --bg-light: #ffffff;
  --bg-light-surface: #f6f8fa;
  --text-light-primary: #1f2328;
  --text-light-secondary: #656d76;
}

Color Rules

  • Dark mode is default for all diagrams
  • Each pipeline stage or layer gets a distinct accent color
  • Use --text-secondary for labels and annotations
  • Use --border-subtle for connecting lines and borders
  • Semantic colors: green = healthy/success, red = error/alert, orange = warning

Typography

Role Font Weight Size
Diagram title system-ui 600 28-32px
Section/stage label system-ui 600 16-18px
Description text system-ui 400 13-14px
Annotation monospace 400 12px
Metric value monospace 700 36-48px

Canvas

Width:  1200px (default, responsive down to 800px)
Height: auto (content-driven)
Padding: 48px

Read the full file on GitHub · 143 lines

Files

What ships with it

3 files 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. 9d ago First seen · 143 lines · 57 tokens per session scan A 851d6c593770

Subscribe to this mod's changes

tech-diagram is a skill published in the GitHub repository thatrebeccarae/claude-marketing (137 stars, last pushed 4mo ago), licensed MIT. It adds 57 tokens to every session and 1,152 once invoked, about $0.0003 per session on Opus 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 2026-09-03.

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