A guide for generating cross-section diagrams for a README from the same models used by a program. It also checks that the diagrams still match the program when related source code changes.

Use it to update README diagrams, add figures, or verify diagrams after changing files such as src/brick.rs or src/zaa/surface.rs.

It reduces the risk of documentation pictures becoming different from the software they describe. It indicates when diagrams need regeneration or restyling after model or constant changes.

How erkexzcx/corbel configures Claude Code and Codex

Reuse

Borrowing it

Nothing to install: this file belongs to erkexzcx/corbel. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file

curl -O https://raw.githubusercontent.com/erkexzcx/corbel/main/.github/skills/diagrams/SKILL.md

Clone the repo

git clone --depth 1 https://github.com/erkexzcx/corbel

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/erkexzcx/corbel/diagrams/github.svg)](https://agentmods.dev/skills/erkexzcx/corbel/diagrams)

Your own site

<a href="https://agentmods.dev/skills/erkexzcx/corbel/diagrams"><img src="https://agentmods.dev/badge/skills/erkexzcx/corbel/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/erkexzcx/corbel/diagrams"><img src="https://agentmods.dev/badge/skills/erkexzcx/corbel/diagrams.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 116 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 3,938 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.

Model	Per session	Once invoked
Fable 5.1	$0.00116	$0.03938
Opus 5.5	$0.00046	$0.01575
Sonnet 5.5	$0.00023	$0.00788
Haiku 4.5	$0.00012	$0.00394

Measured today against content hash a07f14c56548, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

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 today.

The scan reads SKILL.md. This mod also ships 5 executable files (scripts/beads.py, scripts/contour.py, scripts/pin.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.

.github/skills/diagrams/SKILL.md · 232 lines

The source is not reproduced here

Licensed GPL-3.0

The repository is licensed GPL-3.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.

Read it on GitHub

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.

today First seen · 232 lines · 116 tokens per session scan A a07f14c56548

Subscribe to this mod's changes

diagrams is a skill published in the GitHub repository erkexzcx/corbel (7 stars, last pushed 12d ago), licensed GPL-3.0. It adds 116 tokens to every session and 3,938 once invoked, about $0.0005 per session on Opus 5.5. 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 2026-11-07.

3d-printing Writing and docs bricklayer zaa

diagrams next to 6 skills from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
diagramserkexzcx/corbel	Skill	7	12d ago	GPL-3.0	A	116	Claude Code, Codex
bambu-studio-aiheyixuan2/bambu-studio-ai	Skill	258	1mo ago	MIT	A	208	Claude Code, Codex
cadautonomous-ai/autonomous-workshop	Skill	24	today	Apache-2.0	A	99	Codex
image-to-cadautonomous-ai/autonomous-workshop	Skill	24	today	Apache-2.0	A	125	Codex
make-roundautonomous-ai/autonomous-workshop	Skill	24	today	Apache-2.0	A	62	Claude Code, Codex
product-designautonomous-ai/autonomous-workshop	Skill	24	today	Apache-2.0	A	203	Codex
print-detailsautonomous-ai/autonomous-workshop	Skill	24	today	Apache-2.0	A	113	Claude Code, Codex

corbel: Skill for Claude Code