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.
npx skills add willibrandon/pixel-plugin --skill pixel-art-professionalgit clone --depth 1 https://github.com/willibrandon/pixel-pluginWrote 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.
[](https://agentmods.dev/skills/willibrandon/pixel-plugin/pixel-art-professional)<a href="https://agentmods.dev/skills/willibrandon/pixel-plugin/pixel-art-professional"><img src="https://agentmods.dev/badge/skills/willibrandon/pixel-plugin/pixel-art-professional/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.
<a href="https://agentmods.dev/skills/willibrandon/pixel-plugin/pixel-art-professional"><img src="https://agentmods.dev/badge/skills/willibrandon/pixel-plugin/pixel-art-professional.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.00220 | $0.03233 |
| Opus 5.5 | $0.00088 | $0.01293 |
| Sonnet 5.5 | $0.00044 | $0.00647 |
| Haiku 4.5 | $0.00022 | $0.00323 |
Grade A, and why
Pixel Art Professional 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.
How it starts
The opening of the file, as written. The whole thing — 377 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Pixel Art Professional
Overview
This Skill provides advanced pixel art techniques for refining and polishing sprites. It handles dithering patterns, palette optimization, color theory, shading techniques, and antialiasing for professional-quality pixel art.
When to Use
Use this Skill when the user:
- Wants to apply "dithering" or mentions dither patterns
- Asks about "palette optimization" or "color reduction"
- Mentions "shading", "highlights", "shadows", or "lighting"
- Requests "antialiasing", "smoothing", or "edge refinement"
- Talks about "color ramps", "gradients", or "color theory"
- Wants to "polish" or "refine" existing pixel art
- Mentions specific techniques like "Bayer dithering" or "Floyd-Steinberg"
Trigger Keywords: dithering, palette, shading, antialiasing, smooth, gradient, color ramp, polish, refine, color theory, quantize
Instructions
1. Understanding Dithering
Dithering creates the illusion of additional colors by mixing pixels of available colors in patterns.
When to Use Dithering:
- Reducing color count (e.g., 256 colors → 16 colors)
- Creating smooth gradients with limited palettes
- Simulating textures (fabric, metal, stone)
- Retro aesthetic (classic games used dithering extensively)
Dithering Algorithms:
Ordered Dithering (Bayer Matrix):
- Uses fixed pattern matrix (2x2, 4x4, 8x8)
- Predictable, regular pattern
- Best for: textures, backgrounds, retro look
- Fast and consistent
Error Diffusion (Floyd-Steinberg):
- Distributes color error to neighboring pixels
- More organic, less regular pattern
- Best for: gradients, natural images, smooth transitions
- Slower but higher quality
Common Dithering Patterns:
- Checkerboard: Simple 2-color alternating pattern
- Bayer 2x2: Basic ordered dithering
- Bayer 4x4: More subtle ordered dithering
- Bayer 8x8: Very subtle, near-gradient appearance
- Floyd-Steinberg: Error diffusion for smooth gradients
2. Palette Management
What ships with it
3 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.
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 · 377 lines · 220 tokens per session scan A 92d99a1328d5
Pixel Art Professional is a skill published in the GitHub repository willibrandon/pixel-plugin (391 stars, last pushed 1y ago), licensed MIT. It adds 220 tokens to every session and 3,233 once invoked, about $0.0009 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 2026-08-30.
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