diagram

diagram is a skill for Claude Code from qGolem/orc. It costs 8 tokens per session (1,687 once invoked), scanned A, original, MIT.

A command that creates draw.io diagrams from a codebase. Draw.io is a diagramming tool, and the command can visualize architecture, execution flows, package dependencies, or boundaries between parts of a system.

In plain words
What is it for?
Use it to generate architecture overviews, execution or lifecycle flows, package-dependency diagrams, and interface-boundary diagrams.
Why use it?
It turns a codebase that may be hard to understand from files alone into a visual map of its structure or behavior.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter. Also seen: model in frontmatter; names the AskUserQuestion tool.

Part of the orc plugin — 29 skills, 27 agents shipped together

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.

agentmods
npx agentmods add skills/qgolem/orc/diagram
Any agent
npx skills add qGolem/orc --skill diagram
Clone the repo
git clone --depth 1 https://github.com/qGolem/orc

Made for: Claude Code.

Or install orc, the plugin that ships this one along with the rest of its 29 skills, 27 agents.

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

README.md
[![agentmods](https://agentmods.dev/badge/skills/qgolem/orc/diagram.svg)](https://agentmods.dev/skills/qgolem/orc/diagram)
Your own site
<a href="https://agentmods.dev/skills/qgolem/orc/diagram"><img src="https://agentmods.dev/badge/skills/qgolem/orc/diagram.svg" alt="Measured on agentmods" height="20"></a>
Per session 8 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,687 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00008 $0.01687
Opus 5 $0.00004 $0.00843
Sonnet 5 $0.00002 $0.00337
Haiku 4.5 $0.00001 $0.00169

Measured 6d ago against content hash 24cf091d820d, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

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.

skills/diagram/SKILL.md · 210 lines

How it starts

The opening of the file, as written. The whole thing — 210 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Diagram

Generate draw.io diagrams from codebase exploration. Spawns a orc:drawio agent that explores the code, builds the diagram, and exports to PNG. Reuses existing diagrams when available.

Input

$ARGUMENTS is the diagram request describing what to visualize.

If provided: parse into $TYPE and $FOCUS.

If not provided: AskUserQuestion:

  • "What should I diagram?"
  • Options: "Architecture overview" / "Execution flow" / "Package dependencies" / Other

Diagram types:

Type keyword Canvas Template
architecture 1600x1000 3-tier layered (apps/packages/infra)
flow, lifecycle, sequence 1200x1800 Swim lane flowchart
dependency, packages 1200x800 Package DAG
seams, boundaries 1400x800 Interface boundary diagram

Read the full file on GitHub · 210 lines

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 · 210 lines · 8 tokens per session scan A 24cf091d820d

Subscribe to this mod's changes

diagram is a skill published in the GitHub repository qGolem/orc (5 stars, last pushed 5mo ago), licensed MIT. It adds 8 tokens to every session and 1,687 once invoked, about $0.0000 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 2026-08-31.

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