What is arch-diagram?

A diagram generator that creates paper-style pipeline and framework diagrams as TikZ LaTeX code or editable SVG files. TikZ is a LaTeX language for drawing diagrams.

Use it for method overviews, block diagrams, pipelines, and layer-stack illustrations.

It provides editable source instead of requiring a diagram to be drawn manually or exported as a fixed image.

arch-diagram — Skill for Claude Code and Codex by Morningstar202604

Install

Getting it into your agent

It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.

Clone the repo

git clone --depth 1 https://github.com/Morningstar202604/awesome-skillkit

agentmods

npx agentmods add skills/morningstar202604/awesome-skillkit/arch-diagram

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/morningstar202604/awesome-skillkit/arch-diagram/github.svg)](https://agentmods.dev/skills/morningstar202604/awesome-skillkit/arch-diagram)

Your own site

<a href="https://agentmods.dev/skills/morningstar202604/awesome-skillkit/arch-diagram"><img src="https://agentmods.dev/badge/skills/morningstar202604/awesome-skillkit/arch-diagram/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/morningstar202604/awesome-skillkit/arch-diagram"><img src="https://agentmods.dev/badge/skills/morningstar202604/awesome-skillkit/arch-diagram.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 109 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 1,929 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 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.

Model	Per session	Once invoked
Fable 5.1	$0.00109	$0.01929
Opus 5.5	$0.00044	$0.00772
Sonnet 5.5	$0.00022	$0.00386
Haiku 4.5	$0.00011	$0.00193

Measured 1mo ago against content hash cba0cda02523, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

arch-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 1mo 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.

site/skills/paper/arch-diagram/SKILL.md · 106 lines

How it starts

The opening of the file, as written. The whole thing — 106 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Arch Diagram (SOTA)

Generate method-overview diagrams (TikZ + valid SVG) for the "Model Architecture" figure.

v1's three hard bugs are fixed: ① TikZ wrote \sffootnotesize, which is not a valid LaTeX command (compile always errors with Undefined control sequence) -> changed to \footnotesize; ② SVG referenced url(#arrow) but never defined a marker (arrows didn't render) -> now outputs <defs><marker id="arrow">; ③ all blocks crammed on one line -> added row / wrap / stack layouts.

Input Checklist

Input	Required	Notes
diagram type	yes	`--type pipeline` (module flow) / `nn` (layered schematic) / `svg` (pure SVG)
blocks or layers	conditional	pipeline uses `--blocks "Encoder,Decoder,Head"`, supports `Label#color` (`blue/orange/green/red/purple/gray/yellow/cyan`); nn uses `--layers`
layout	no	`--layout row` (default) / `wrap`/`stack`; `wrap` pairs with `--per-row 3`
output format	no	`--format tikz` (default) / `svg`
output path	no	`--output arch.tex`; default writes `/tmp/arch.tex`

When missing, ask everything at once: "Please provide: ① diagram type (pipeline / nn / svg) ② block names or layer spec ③ layout (row/wrap/stack; choose wrap when there are many blocks) ④ output path (default /tmp)."

Pre-flight Checks

python3 --version                       # expect >= 3.8, else error and STOP
test -f scripts/arch_diagram.py && echo OK   # expect OK printed, else script missing STOP

If python3 is missing -> prompt to install Python >=3.8; if the script is missing -> say this skill's directory is incomplete and don't continue.

Workflow

Step 1: Generate a Pipeline / Block Diagram

python3 scripts/arch_diagram.py --type pipeline --blocks "Encoder,Decoder,Head" --output arch.tex
python3 scripts/arch_diagram.py --type pipeline --blocks "A,B,C,D,E" --layout wrap --per-row 3 --format svg --output arch.svg
python3 scripts/arch_diagram.py --type pipeline --blocks "Input#green,Encoder#blue,Head#red" --output arch.tex

Expected: JSON output containing output, format, layout, n_blocks, blocks, escaped (whether any label was escaped), font_command: "\\footnotesize", compilable: true (TikZ) or has_marker_def/valid_root/editable: true (SVG). If it fails: --blocks empty -> the script uses default blocks (Data/Feature/Model/Loss); an illegal color name -> falls back to blue, no error.

Read the full file on GitHub · 106 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.

1mo ago Changed · -12 tokens per session cba0cda02523
1mo ago Changed · +12 lines · +25 tokens per session 799100637c7e
1mo ago First seen · 94 lines · 96 tokens per session scan A ee78f2fc7ac1

Subscribe to this mod's changes

arch-diagram is a skill published in the GitHub repository Morningstar202604/awesome-skillkit (0 stars, last pushed 1mo ago), licensed Apache-2.0. It adds 109 tokens to every session and 1,929 once invoked, about $0.0004 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 2026-09-19.

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arch-diagram