What is diagram-ascii-art?

A collection of tools for making text banners and pictures from characters such as letters, symbols, and punctuation. It includes local command-line programs and free web APIs.

Use it to make text headers, logos, terminal decorations, and character-based versions of images.

It avoids creating character-based artwork by hand or finding separate tools for each format. It can add readable banners or simple visual effects to terminals, documentation, and scripts.

diagram-ascii-art — Skill for Claude Code and Codex by xiaohei-info

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 xiaohei-info/oh-my-multica --skill diagram-ascii-art

Clone the repo

git clone --depth 1 https://github.com/xiaohei-info/oh-my-multica

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/xiaohei-info/oh-my-multica/diagram-ascii-art/github.svg)](https://agentmods.dev/skills/xiaohei-info/oh-my-multica/diagram-ascii-art)

Your own site

<a href="https://agentmods.dev/skills/xiaohei-info/oh-my-multica/diagram-ascii-art"><img src="https://agentmods.dev/badge/skills/xiaohei-info/oh-my-multica/diagram-ascii-art/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/xiaohei-info/oh-my-multica/diagram-ascii-art"><img src="https://agentmods.dev/badge/skills/xiaohei-info/oh-my-multica/diagram-ascii-art.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 22 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 3,040 The whole file, excluding the scripts and references it only reads on demand.

Security scan B 2 findings. A grade says what 26 rules found in the file — not that it is safe.

Origin 98% 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.

Model	Per session	Once invoked
Fable 5.1	$0.00022	$0.03040
Opus 5.5	$0.00009	$0.01216
Sonnet 5.5	$0.00004	$0.00608
Haiku 4.5	$0.00002	$0.00304

Measured 1mo ago against content hash 01e86491962b, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade B, and why

diagram-ascii-art scanned grade B with 2 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.

Asks for rootmediumPrivilege escalation

A mod that escalates privileges can change anything on the machine, not only the project.

sudo apt install cowsay -y # Debian/Ubuntu

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

### Usage (via terminal curl)

Origin

This is a copy

98% identical to ascii-art — 17 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.

src/omac/agents/architect/skills/diagram-ascii-art/SKILL.md · 324 lines

How it starts

The opening of the file, as written. The whole thing — 324 lines — stays where its author put it; the contents beside it link to each section on GitHub.

ASCII Art Skill

Multiple tools for different ASCII art needs. All tools are local CLI programs or free REST APIs — no API keys required.

Tool 1: Text Banners (pyfiglet — local)

Render text as large ASCII art banners. 571 built-in fonts.

Setup

pip install pyfiglet --break-system-packages -q

Usage

python3 -m pyfiglet "YOUR TEXT" -f slant
python3 -m pyfiglet "TEXT" -f doom -w 80    # Set width
python3 -m pyfiglet --list_fonts             # List all 571 fonts

Recommended fonts

Style	Font	Best for
Clean & modern	`slant`	Project names, headers
Bold & blocky	`doom`	Titles, logos
Big & readable	`big`	Banners
Classic banner	`banner3`	Wide displays
Compact	`small`	Subtitles
Cyberpunk	`cyberlarge`	Tech themes
3D effect	`3-d`	Splash screens
Gothic	`gothic`	Dramatic text

Tips

Preview 2-3 fonts and let the user pick their favorite
Short text (1-8 chars) works best with detailed fonts like doom or block
Long text works better with compact fonts like small or mini

Tool 2: Text Banners (asciified API — remote, no install)

Free REST API that converts text to ASCII art. 250+ FIGlet fonts. Returns plain text directly — no parsing needed. Use this when pyfiglet is not installed or as a quick alternative.

Usage (via terminal curl)

# Basic text banner (default font)
curl -s "https://asciified.thelicato.io/api/v2/ascii?text=Hello+World"

# With a specific font
curl -s "https://asciified.thelicato.io/api/v2/ascii?text=Hello&font=Slant"
curl -s "https://asciified.thelicato.io/api/v2/ascii?text=Hello&font=Doom"
curl -s "https://asciified.thelicato.io/api/v2/ascii?text=Hello&font=Star+Wars"
curl -s "https://asciified.thelicato.io/api/v2/ascii?text=Hello&font=3-D"
curl -s "https://asciified.thelicato.io/api/v2/ascii?text=Hello&font=Banner3"

# List all available fonts (returns JSON array)
curl -s "https://asciified.thelicato.io/api/v2/fonts"

Read the full file on GitHub · 324 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 First seen · 324 lines · 22 tokens per session scan B 01e86491962b

Subscribe to this mod's changes

diagram-ascii-art is a skill published in the GitHub repository xiaohei-info/oh-my-multica (37 stars, last pushed 17d ago), licensed MIT. It adds 22 tokens to every session and 3,040 once invoked, about $0.0001 per session on Opus 5.5. A static security scan graded it B with 2 findings (asks for root, makes network calls). It is 98% identical to ascii-art, differing in 17 lines, and is treated as a copy.

Claude Code Creative and media agent-orchestration agentic-ai ai-agents cli codex

diagram-ascii-art