aseprite-mcp: Skill for OpenCode

.opencode/skills/pixel-artist/SKILL.md

pixel-artist is a skill for OpenCode from ilhamdoanggg/aseprite-mcp. It costs 41 tokens per session (2,881 once invoked), scanned A, original, MIT.

A skill for creating pixel-art sprites, tiles, and animations through the aseprite-mcp server and Aseprite.

In plain words
What is it for?
Creating sprites, layers, animation frames, palettes, tiles, and PNG or GIF exports.
Why use it?
It gives an AI assistant guidance for designing and composing game-ready pixel art.

Skill for OpenCode

Written for OpenCode: installed under .opencode/. Also seen: mentions OpenCode.

This is ilhamdoanggg/aseprite-mcp's own configuration. It tells OpenCode how to work on aseprite-mcp itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything aseprite-mcp configures →

Reuse

Borrowing it

Nothing to install: this file belongs to ilhamdoanggg/aseprite-mcp. 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/ilhamdoanggg/aseprite-mcp/main/.opencode/skills/pixel-artist/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/ilhamdoanggg/aseprite-mcp

Made for: OpenCode.

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 pixel-artist

README.md
[![agentmods](https://agentmods.dev/badge/skills/ilhamdoanggg/aseprite-mcp/pixel-artist/github.svg)](https://agentmods.dev/skills/ilhamdoanggg/aseprite-mcp/pixel-artist)
Your own site
<a href="https://agentmods.dev/skills/ilhamdoanggg/aseprite-mcp/pixel-artist"><img src="https://agentmods.dev/badge/skills/ilhamdoanggg/aseprite-mcp/pixel-artist/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.

agentmods 80×15 button for pixel-artist

Your own site · 80×15
<a href="https://agentmods.dev/skills/ilhamdoanggg/aseprite-mcp/pixel-artist"><img src="https://agentmods.dev/badge/skills/ilhamdoanggg/aseprite-mcp/pixel-artist.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 41 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,881 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00041 $0.02881
Opus 5 $0.00020 $0.01440
Sonnet 5 $0.00008 $0.00576
Haiku 4.5 $0.00004 $0.00288

Measured 10d ago against content hash a8873370bff0, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

pixel-artist 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 10d 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.

.opencode/skills/pixel-artist/SKILL.md · 277 lines

How it starts

The opening of the file, as written. The whole thing — 277 lines — stays where its author put it; the contents beside it link to each section on GitHub.

pixel-artist

You have access to the aseprite-mcp MCP server with tools for creating and editing Aseprite sprites programmatically. This skill teaches you how to use those tools effectively to produce game-quality pixel art.

Tool reference

Tool Purpose
create_sprite Start a new sprite (width, height, color mode)
draw_pixels Place individual pixels (arrays of {x, y, color})
draw_line Bresenham line between two points
draw_rectangle Filled or outline rectangle
draw_circle Filled or outline circle
flood_fill Fill contiguous area of matching color
add_layer New layer for foreground/background separation
remove_layer Delete a layer
add_frame New frame for animation
set_frame_duration Set frame timing in milliseconds
export_png Export frame(s) to PNG
export_gif Export animation to GIF
get_sprite_info Read sprite dimensions, frames, layers
inspect_sprite Full dump of all cels and palette
get_pixel_color Read color at specific coordinate
get_palette Full palette listing
resize_canvas Change sprite dimensions

Color format

All color parameters use hex: "#rrggbb" or "#rrggbbaa".

Sprite design principles

Composition with basic shapes

  • Use draw_rectangle + draw_circle for base forms, then flood_fill to merge them
  • Add detail with draw_pixels for small features (eyes, highlights, small details)
  • Layer order: draw back-to-front shapes in the same layer
  • Use separate layers for character vs background for easier editing

Palette discipline

  • Limit to 8–16 colors per sprite for a cohesive look
  • Use set_palette_color and get_palette to manage colors
  • Consistent skin tones: #ffddaa, #eec99a, #ddb888 for highlights/shadows
  • Outline in darker shades of the fill color, not pure black

Color palettes

Skin tones
Name Light Medium Dark
Fair #ffddaa #eec99a #d4a574
Tan #eebb88 #ddaa77 #c49455
Dark #cc8844 #aa6633 #774422

Read the full file on GitHub · 277 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.

  1. 10d ago First seen · 277 lines · 41 tokens per session scan A a8873370bff0

Subscribe to this mod's changes

pixel-artist is a skill published in the GitHub repository ilhamdoanggg/aseprite-mcp (0 stars, last pushed 3mo ago), licensed MIT. It adds 41 tokens to every session and 2,881 once invoked, about $0.0002 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.

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