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concept-diagrams

concept-diagrams is a skill for Claude Code, Codex from MilkyWay008/Hermes-OTG. It costs 14 tokens per session (4,507 once invoked), scanned A, a copy of concept-diagrams, MIT.

A tool for creating simple educational diagrams as self-contained SVG files inside HTML pages. SVG is a browser-supported format for drawings that stay sharp when resized.

In plain words
What is it for?
Use it to explain science, mathematics, anatomy, physical objects, layouts, processes, system connections, and numerical data with flat visual diagrams.
Why use it?
It gives you diagrams that can be opened directly in a modern browser and adapt to light or dark mode. The output keeps the drawing and its presentation together in one file.

Skill for Claude CodeCodex

Which agent this was written for is unclear — built for hermes-agent. Also seen: built for hermes-agent.

not rated 15repo +1 28d ago A scan 14 tokens copy · 100% MIT

Good fit Use it to explain science, mathematics, anatomy, physical objects, layouts, processes, system connections, and numerical data with flat visual diagrams.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/milkyway008/hermes-otg/concept-diagrams
View source ↗ MilkyWay008/Hermes-OTG
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 MilkyWay008/Hermes-OTG --skill concept-diagrams
Clone the repo
git clone --depth 1 https://github.com/MilkyWay008/Hermes-OTG

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 concept-diagrams

README.md
[![agentmods](https://agentmods.dev/badge/skills/milkyway008/hermes-otg/concept-diagrams/github.svg)](https://agentmods.dev/skills/milkyway008/hermes-otg/concept-diagrams)
Your own site
<a href="https://agentmods.dev/skills/milkyway008/hermes-otg/concept-diagrams"><img src="https://agentmods.dev/badge/skills/milkyway008/hermes-otg/concept-diagrams/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 concept-diagrams

Your own site · 80×15
<a href="https://agentmods.dev/skills/milkyway008/hermes-otg/concept-diagrams"><img src="https://agentmods.dev/badge/skills/milkyway008/hermes-otg/concept-diagrams.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 14 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 4,507 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 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 $0.00014 $0.04507
Opus 5 $0.00007 $0.02253
Sonnet 5 $0.00003 $0.00901
Haiku 4.5 $0.00001 $0.00451

Measured 12d ago against content hash 4a88e75fdd70, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

concept-diagrams 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 12d 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 concept-diagrams — 2 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.

data/skills/creative/concept-diagrams/SKILL.md · 363 lines

How it starts

The opening of the file, as written. The whole thing — 363 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Concept Diagrams

Generate production-quality SVG diagrams with a unified flat, minimal design system. Output is a single self-contained HTML file that renders identically in any modern browser, with automatic light/dark mode.

Scope

Best suited for:

  • Physics setups, chemistry mechanisms, math curves, biology
  • Physical objects (aircraft, turbines, smartphones, mechanical watches, cells)
  • Anatomy, cross-sections, exploded layer views
  • Floor plans, architectural conversions
  • Narrative journeys (lifecycle of X, process of Y)
  • Hub-spoke system integrations (smart city, IoT networks, electricity grids)
  • Educational / textbook-style visuals in any domain
  • Quantitative charts (grouped bars, energy profiles)

Look elsewhere first for:

  • Dedicated software / cloud infrastructure architecture with a dark tech aesthetic (consider architecture-diagram if available)
  • Hand-drawn whiteboard sketches (consider excalidraw if available)
  • Animated explainers or video output (consider an animation skill)

If a more specialized skill is available for the subject, prefer that. If none fits, this skill can serve as a general-purpose SVG diagram fallback — the output will carry the clean educational aesthetic described below, which is a reasonable default for almost any subject.

Workflow

  1. Decide on the diagram type (see Diagram Types below).
  2. Lay out components using the Design System rules.
  3. Write the full HTML page using templates/template.html as the wrapper — paste your SVG where the template says <!-- PASTE SVG HERE -->.
  4. Save as a standalone .html file (for example ~/my-diagram.html or ./my-diagram.html).
  5. User opens it directly in a browser — no server, no dependencies.

Optional: if the user wants a browsable gallery of multiple diagrams, see "Local Preview Server" at the bottom.

Load the HTML template:

skill_view(name="concept-diagrams", file_path="templates/template.html")

The template embeds the full CSS design system (c-* color classes, text classes, light/dark variables, arrow marker styles). The SVG you generate relies on these classes being present on the hosting page.

Read the full file on GitHub · 363 lines

Files

What ships with it

19 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. 12d ago First seen · 363 lines · 14 tokens per session scan A 4a88e75fdd70

Subscribe to this mod's changes

concept-diagrams is a skill published in the GitHub repository MilkyWay008/Hermes-OTG (15 stars, last pushed 28d ago), licensed MIT. It adds 14 tokens to every session and 4,507 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to concept-diagrams, differing in 2 lines, and is treated as a copy.

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