diagram-generator

diagram-generator is a skill for Codex from Asaiuta/reverse-workbench-skill. It costs 118 tokens per session (2,221 once invoked), scanned A, a copy of diagram-generator, MIT.

A tool for turning structured or messy information into clear, editable diagrams. It favours text-based diagram files so the result can be reviewed, stored in version control, and changed later.

In plain words
What is it for?
Use it to create flowcharts, timelines, system or ownership diagrams, and other visual explanations from requirements, data, or written descriptions.
Why use it?
It helps make relationships, steps, decisions, and system structure easier to understand than raw notes or data. Keeping the source editable avoids having to recreate a diagram after every change.

Skill for Codex

Written for Codex: agents/openai.yaml present.

Good fit Use it to create flowcharts, timelines, system or ownership diagrams, and other visual explanations from requirements, data, or written descriptions.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/asaiuta/reverse-workbench-skill/diagram-generator
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 Asaiuta/reverse-workbench-skill --skill diagram-generator
Clone the repo
git clone --depth 1 https://github.com/Asaiuta/reverse-workbench-skill

Made for: 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-generator

README.md
[![agentmods](https://agentmods.dev/badge/skills/asaiuta/reverse-workbench-skill/diagram-generator.svg)](https://agentmods.dev/skills/asaiuta/reverse-workbench-skill/diagram-generator)
Your own site
<a href="https://agentmods.dev/skills/asaiuta/reverse-workbench-skill/diagram-generator"><img src="https://agentmods.dev/badge/skills/asaiuta/reverse-workbench-skill/diagram-generator.svg" alt="Measured on agentmods" height="20"></a>
Per session 118 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,221 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 $0.00118 $0.02221
Opus 5 $0.00059 $0.01111
Sonnet 5 $0.00024 $0.00444
Haiku 4.5 $0.00012 $0.00222

Measured 8d ago against content hash ed02e5d9f08d, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

diagram-generator 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 8d ago.

The scan reads SKILL.md. This mod also ships 2 executable files (scripts/create_sample_diagrams.py, scripts/render_diagram.py), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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 diagram-generator — 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.

skills/diagram-generator/SKILL.md · 189 lines

How it starts

The opening of the file, as written. The whole thing — 189 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Diagram Generator

ACTION REQUIRED(读完后立刻执行)

  1. NOW:确认当前任务是否命中本 skill 的适用范围
  2. NOW:读取 ../tool-index.md,校验工具可用性和实际路径
  3. NEXT:缺工具时调用 bootstrap,不要猜路径
  4. ACT:进入"工作流"第一步并执行,不要停在确认状态

Purpose

Create clear, editable diagrams from messy or structured inputs. Prefer text-based diagram source first so the result can be reviewed, versioned, and refined. Render to files only when the user asks for an image/PDF or when a downloadable artifact would materially help.

Default workflow

  1. Identify the user's intent, audience, and source material.
  2. Choose the diagram family and language using the decision table below.
  3. Normalize entities, relationships, labels, states, branches, and time/order information before writing diagram code.
  4. Generate concise, readable diagram source.
  5. Validate the syntax mentally and, when creating files, run scripts/render_diagram.py.
  6. Return the diagram source plus a short note about assumptions. When files are generated, include links to the output files.

Do not over-ask for clarification. If the request is underspecified, make reasonable assumptions and label them briefly.

Diagram language decision table

Use Mermaid unless another language is clearly better.

User wants Prefer Why
process flow, decision tree, simple swimlane Mermaid flowchart readable and easy to paste into Markdown
sequence of system/user interactions Mermaid sequenceDiagram or PlantUML sequence Mermaid for docs; PlantUML for UML formality
lifecycle, state machine, transitions Mermaid stateDiagram-v2 or PlantUML state compact transition syntax
database schema, entities, relationships Mermaid erDiagram portable ER notation
class/interface/object model Mermaid classDiagram or PlantUML class Mermaid for docs; PlantUML for detailed UML
project schedule Mermaid gantt concise timeline syntax
hierarchy, ideas, notes Mermaid mindmap good default for idea maps
customer/product journey Mermaid journey built-in journey notation
git history Mermaid gitGraph built-in git notation
dependency graph, package graph, large network Graphviz DOT better layout engines for dense graphs
architecture with layers, clusters, boundaries Mermaid flowchart with subgraphs, Graphviz clusters, or PlantUML C4-style choose based on requested fidelity
weighted flow/sankey-like relationship Mermaid sankey-beta when supported, otherwise SVG or Graphviz Mermaid support may vary by renderer
custom visual where source languages fit poorly SVG precise control over layout and styling

Read the full file on GitHub · 189 lines

Files

What ships with it

5 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. 8d ago First seen · 189 lines · 118 tokens per session scan A ed02e5d9f08d

Subscribe to this mod's changes

diagram-generator is a skill published in the GitHub repository Asaiuta/reverse-workbench-skill (2 stars, last pushed 24d ago), licensed MIT. It adds 118 tokens to every session and 2,221 once invoked, about $0.0006 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to diagram-generator, differing in 0 lines, and is treated as a copy.

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