ascii-animation

ascii-animation is a skill for Claude Code, Codex from ideoshi/glyphloop. It costs 51 tokens per session (368 once invoked), scanned A, original, MIT.

A tool for creating loop-perfect animations made from text characters, known as ASCII art, for websites or terminals.

In plain words
What is it for?
Use it to create web embeds, terminal animations, or raw frames from supported sources such as waves, rain, blobs, and 3D shapes.
Why use it?
It provides a repeatable way to define, render, and verify animated text-based visuals.

Skill for Claude CodeCodex

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/ideoshi/glyphloop/ascii-animation
Any agent
npx skills add ideoshi/glyphloop --skill ascii-animation
Clone the repo
git clone --depth 1 https://github.com/ideoshi/glyphloop

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.

agentmods badge for ascii-animation

README.md
[![agentmods](https://agentmods.dev/badge/skills/ideoshi/glyphloop/ascii-animation.svg)](https://agentmods.dev/skills/ideoshi/glyphloop/ascii-animation)
Your own site
<a href="https://agentmods.dev/skills/ideoshi/glyphloop/ascii-animation"><img src="https://agentmods.dev/badge/skills/ideoshi/glyphloop/ascii-animation.svg" alt="Measured on agentmods" height="20"></a>
Per session 51 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 368 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 $0.00051 $0.00368
Opus 5 $0.00026 $0.00184
Sonnet 5 $0.00010 $0.00074
Haiku 4.5 $0.00005 $0.00037

Measured 4d ago against content hash a043c8c2bc64, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

ascii-animation 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 4d 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.

.claude/skills/ascii-animation/SKILL.md · 33 lines

What it actually says

Generating ASCII animations

  1. Read AGENTS.md for the preset schema and per-source parameter tables.

  2. Author a preset - start from a file in presets/ and change only what the request needs (source, colors, size, duration, seed).

  3. Render headless:

    npm run render -- --preset <preset.json> --out <dir>            # web embed
    npm run render -- --json '<inline-json>' --out <dir> --format terminal
    
  4. The command prints a JSON summary. On error: output, the message lists valid options - fix the preset and retry.

  5. For websites, deliver frames.json + player.js and this snippet:

    <div data-ascii-player></div>
    <script>window.ASCII_DATA = /* frames.json contents */;</script>
    <script src="player.js"></script>
    

Headless sources: flowfield, waves, blobs, rain, shapes3d, expr (custom brightness expression), parametric3d (custom 3D surface). Image/video/text base layers, color inheritance, and PNG/GIF/MP4 export need the editor UI (npm run dev, port 5199). Iterate on look by changing seed first, then params. Verify output by serving the out dir and checking the demo index.html.

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. 4d ago First seen · 33 lines · 51 tokens per session scan A a043c8c2bc64

Subscribe to this mod's changes

ascii-animation is a skill published in the GitHub repository ideoshi/glyphloop (0 stars, last pushed 1mo ago), licensed MIT. It adds 51 tokens to every session and 368 once invoked, about $0.0003 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.