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diagram-design

diagram-design is a skill for Claude Code, Codex from aiskillstore/marketplace. It costs 188 tokens per session (10,212 once invoked), scanned A, original, no licence file.

A diagram-making helper for architecture, system flows, data models, timelines, charts, and many other visual layouts. These diagrams show how software, data, processes, or organisations are structured.

In plain words
What is it for?
Use it to create flowcharts, sequence diagrams, state machines, entity-relationship diagrams, Gantt charts, and other listed diagram types.
Why use it?
It provides a defined way to create technical and business visuals instead of describing those relationships only in text.

Skill for Claude CodeCodex

Which agent this was written for is unclear — body not stored (licence); the path alone says nothing.

not rated 422repo +6 today A scan 188 tokens no licence

Good fit Use it to create flowcharts, sequence diagrams, state machines, entity-relationship diagrams, Gantt charts, and other listed diagram types.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/aiskillstore/marketplace/diagram-design
View source ↗ aiskillstore/marketplace skillstore.io
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 aiskillstore/marketplace --skill diagram-design
Clone the repo
git clone --depth 1 https://github.com/aiskillstore/marketplace

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 diagram-design

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

Your own site · 80×15
<a href="https://agentmods.dev/skills/aiskillstore/marketplace/diagram-design"><img src="https://agentmods.dev/badge/skills/aiskillstore/marketplace/diagram-design.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 188 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 10,212 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 unknown 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 $0.00188 $0.10212
Opus 5 $0.00094 $0.05106
Sonnet 5 $0.00038 $0.02042
Haiku 4.5 $0.00019 $0.01021

Measured 3d ago against content hash 1801db2ce04d, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

diagram-design 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 3d 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.

pending/cathrynlavery/diagram-design/SKILL.md · 586 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

Files

What ships with it

60 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. 3d ago First seen · 586 lines · 188 tokens per session scan A 1801db2ce04d

Subscribe to this mod's changes

diagram-design is a skill published in the GitHub repository aiskillstore/marketplace (422 stars, last pushed today), with no licence file. It adds 188 tokens to every session and 10,212 once invoked, about $0.0009 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 2026-09-08.

Design and UXai-skillsclaudeclaude-skillscodexcodex-skills
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