Sprite Gen
aldegad/sprite-gen
Generates images and game sprites through GPT or Grok with guided provider choices, separate saved defaults, automatic cleanup and optional curation.
Run the mechanical checks and the by-eye checks, then report what you found with evidence instead of declaring success.
Install Review
$ npx skills add with-pebbly/aseprite-ai-artist --skill review -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install with-pebbly/aseprite-ai-artist review --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/with-pebbly/aseprite-ai-artist.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/review .claude/skills/review && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "review" agent skill from https://github.com/with-pebbly/aseprite-ai-artist/tree/main/skills/review into .claude/skills/review/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "review", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/with-pebbly/aseprite-ai-artist/tree/main/skills/reviewType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add with-pebbly/aseprite-ai-artist --skill review -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install with-pebbly/aseprite-ai-artist review --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/with-pebbly/aseprite-ai-artist.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/review .agents/skills/review && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "review" agent skill from https://github.com/with-pebbly/aseprite-ai-artist/tree/main/skills/review into .agents/skills/review/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "review", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add with-pebbly/aseprite-ai-artist --skill review -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install with-pebbly/aseprite-ai-artist review --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/with-pebbly/aseprite-ai-artist.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/review .cursor/skills/review && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "review" agent skill from https://github.com/with-pebbly/aseprite-ai-artist/tree/main/skills/review into .cursor/skills/review/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "review", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/with-pebbly/aseprite-ai-artist.git --path skills/review--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add with-pebbly/aseprite-ai-artist --skill review -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install with-pebbly/aseprite-ai-artist review --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/with-pebbly/aseprite-ai-artist.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/review .gemini/skills/review && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "review" agent skill from https://github.com/with-pebbly/aseprite-ai-artist/tree/main/skills/review into .gemini/skills/review/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "review", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install with-pebbly/aseprite-ai-artist reviewInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add with-pebbly/aseprite-ai-artist --skill review -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/with-pebbly/aseprite-ai-artist.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/review .github/skills/review && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "review" agent skill from https://github.com/with-pebbly/aseprite-ai-artist/tree/main/skills/review into .github/skills/review/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "review", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add with-pebbly/aseprite-ai-artist --skill review -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install with-pebbly/aseprite-ai-artist review --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/with-pebbly/aseprite-ai-artist.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/review .opencode/skills/review && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "review" agent skill from https://github.com/with-pebbly/aseprite-ai-artist/tree/main/skills/review into .opencode/skills/review/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "review", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
review- GitHub stars
- 172
- Token cost
- ~1k tokens
- SKILL.md length
- 578 words
- Files
- 1
- Skills in repo
- 14
- Repo updated
- First seen
- Licence
- MIT
At a glance
Run the mechanical checks and the by-eye checks, then report what you found with evidence instead of declaring success.
- Works in 6 steps: Cold read → Mechanical checks → Look at it → …
- Asks is this good
- SKILL.md covers Procedure, When the user asks "why does… and Related
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Review is an agent skill from with-pebbly/aseprite-ai-artist. Run the mechanical checks and the by-eye checks, then report what you found with evidence instead of declaring success. Use before finishing any pixel-art task, and when the user asks "is this good" or "why does this look off".
Its SKILL.md is about 1k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.
It sits in Game Development, covering Sprites and pixel art. It works with Model Context Protocol. The repository describes itself as: Your coding agent paints pixel art in the Aseprite window you already have open. MCP server + skills for Claude Code, omp, Codex, Gemini CLI and Cursor — draws, looks at its…. The licence is MIT.
When your agent uses it
- Asks is this good
- Why does this look off
Example prompts
- “is this good”
- “why does this look off”
- “/review”
Workflow steps
6 steps, taken from the step headings in SKILL.md.
What it can do on your machine
Read from SKILL.md and the folder at commit f51fe69. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
No scripts in the folder and no shell commands in SKILL.md.
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
Review loads about 1k tokens when it runs. Until then it costs about 59 tokens; SKILL.md has 578 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check passed
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
SKILL.md
The full file from with-pebbly/aseprite-ai-artist at commit f51fe69, republished under its MIT licence (© with-pebbly). 578 words, ~1,038 tokens.
Download SKILL.mdSave it as
.claude/skills/review/SKILL.md (or your agent's skills folder).- name
- review
- description
- Run the mechanical checks and the by-eye checks, then report what you found with evidence instead of declaring success. Use before finishing any pixel-art task, and when the user asks "is this good" or "why does this look off".
- title
- Review a sprite before calling it done
Review a sprite before calling it done
"Done" is a claim. This is how you earn it.
Procedure
0. Cold read
Before you look at the brief again: look op="preview", and write one
sentence on what the picture shows to someone who was never told, plus the
three things the eye lands on first. If that sentence does not name the
subject, or misses a part the brief makes central, the sprite fails review
whatever validate says. Squint at the same preview for value: the subject's
lit side should be among the lightest values and its core shadow among the
darkest; everything in the bottom third reads as murk.
1. Mechanical checks
validateReports off-palette colours, semi-transparent pixels, isolated stray pixels, untagged animation frames, uniform timing and unsaved state — each with a location where one exists.
Fix every error. For each warning you do not fix, have a reason and say it.
For animation, tell validate what the cycle is supposed to be, and it checks
that instead of only the generic rules:
validate expect={ layerFrames: { "sword-fx": [[3,4]] }, mustNotOverlap: [["sword","head"]] }layerFrames flags a layer that is empty inside its frame range or has pixels
outside it (a slash effect leaking into the idle); mustNotOverlap flags any
frame where two layers' pixels collide (the blade crossing the face).
2. Look at it
look op="preview"Work down rules://07-review-checklist:
- Silhouette — recognisable as one flat shape?
- Value contrast — would it survive desaturation?
- Light — one direction, everywhere?
- Ramps — do shadows hue-shift, or are they just darker?
- Lines — even runs, no doubled pixels?
- Outline — one style, applied consistently?
- Banding — long parallel stripes of adjacent ramp steps?
- Detail placement — spent on the face and weapon, not the boots?
If the sprite was drawn from a reference (reference op="list" is not empty),
look op="compare" on each key frame too. A mismatch the PixelSpec lists as a
deviation is a decision; any other large one — a limb in a different place, a
silhouette that lost its defining shape — is a finding.
Show full SKILL.md (256 more words)Show less
3. Look closely at anything that felt off
look op="ascii"This is where you find the pixel one row too low and the line run of 3 in a sequence of 2s. If step 2 left you with "something is wrong but I cannot say what", this is the step that names it.
4. For animation
look op="filmstrip"Volume consistent? Height consistent? Does it loop? Do contact poses hold longer? Is there anticipation before strong actions?
Then check the in-betweens one at a time against their neighbours:
look op="onion" frame=3Ghosts of frames 2 and 4 under frame 3 show whether the spacing eases or jumps, and whether a limb changed length on the way — both invisible in a filmstrip.
5. Report
State what you checked, what you found, and what you chose not to change:
Validated clean. Silhouette reads at 1×; value contrast holds desaturated. Two compromises: the plume colour snapped from
#e04a6ato#ff77a8(ΔE 14) because PICO-8 has nothing closer, and the far arm is 2px thick rather than 3 to keep the silhouette from fusing with the torso.
A user can act on a stated compromise. They cannot act on one you hid.
When the user asks "why does this look off"
Run the same checks, then name the specific cause rather than listing possibilities. The usual answers, in order of frequency: too many colours, flat shading, semi-transparent pixels, mushy silhouette, uniform animation timing.
Related
rules://07-review-checklist, and every other rule it points at;
rules://92-generated-art-tells; and the Review section of the subject file
for what was drawn (skill://studio, Subject rules).
© with-pebbly, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
Just SKILL.md in skills/review of with-pebbly/aseprite-ai-artist.
Open the folder on GitHubat commit f51fe69
Compare with similar skills
Review next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Review this skillwith-pebbly/aseprite-ai-artist | 172 | — | ~1k | Automated safety check: Pass | MIT | |
| Sprite Genaldegad/sprite-gen | 2.6k | — | ~4.5k | Automated safety check: Pass | Apache-2.0 | |
| Fal Assetsrehan-remade/universal-modder | 5.3k | — | ~2k | Automated safety check: Notes | MIT | |
| Game Assetsglifxyz/glif-mcp-server | 212 | — | ~831 | Automated safety check: Pass | MIT | |
| Scenario Game Assetsscenario-labs/skills | 913 | — | ~4.5k | Automated safety check: Pass | MIT | |
| Game Art PipelinePersonalJarvis/PersonalJarvis | 141 | — | ~566 | Automated safety check: Pass | Apache-2.0 |
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rehan-remade/universal-modder
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Make art and media for a game you are building with Glif: character reference sheets, consistent characters, pixel-art sprite sheets with animation cycles, seamless and PBR textures, 3D models, item…
Scenario Game Assets
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A skill your agent uses when creating game art through Scenario MCP: sprites, sprite sheets, icons, props, loot, tilesets and autotile terrain transitions, seamless tiles, isometric buildings…
Game Art Pipeline
PersonalJarvis/PersonalJarvis
Develop or redesign Personal Jarvis world art, buildings, characters and 3D assets through an authored Blender reference scene, runtime review and controlled asset rollout.
Pixel Face
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Create or improve a 32×32 pixel-art persona face for the Frontier Faces demo (examples/04-frontier-faces/personas.mjs) — the animated agent avatars rendered by face-term.mjs / the browser…
More from with-pebbly/aseprite-ai-artist
All 14 skills in this repoAnimate
with-pebbly/aseprite-ai-artist
Build an idle, walk, run or attack cycle from key poses, set timing that reads as motion rather than a metronome, tag it, and review it as a filmstrip.
Draw
with-pebbly/aseprite-ai-artist
Draw a sprite from silhouette to finished pixels, in the order that catches mistakes while they are still cheap — block in, check the silhouette, shade, outline, verify.
Export
with-pebbly/aseprite-ai-artist
Produce the files an engine actually consumes — spritesheets with atlases, GIFs, scaled PNGs — with the tags and layout the target needs.
Fix
with-pebbly/aseprite-ai-artist
Change a sprite that already exists — the user's own work or your earlier output — without destroying what is already right.
New
with-pebbly/aseprite-ai-artist
Create a new Aseprite document with the right canvas size, colour mode, palette and layer structure, so later work does not have to fight the setup.
Palette
with-pebbly/aseprite-ai-artist
Pick a palette that fits the request, build hue-shifted ramps, or clean up a sprite whose colours have sprawled.
Related
Works with
Categories
Questions about Review
What does Review do?
Run the mechanical checks and the by-eye checks, then report what you found with evidence instead of declaring success. Review is an agent skill from with-pebbly/aseprite-ai-artist. Run the mechanical checks and the by-eye checks, then report what you found with evidence instead of declaring success.
When should I use Review?
Review fits situations like: asks is this good; why does this look off.
How do I install Review in Claude Code?
Run `npx skills add with-pebbly/aseprite-ai-artist --skill review -a claude-code`. Or copy the skill folder (skills/review in with-pebbly/aseprite-ai-artist) into .claude/skills/review in your project. Claude Code loads it when a task matches its description.
How do I install Review in Codex?
Run `npx skills add with-pebbly/aseprite-ai-artist --skill review -a codex`. Or copy the skill folder (skills/review in with-pebbly/aseprite-ai-artist) into .agents/skills/review in your project. Codex loads it when a task matches its description.
Can I use Review in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add with-pebbly/aseprite-ai-artist --skill review -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/review, .gemini/skills/review, .github/skills/review and .opencode/skills/review in your project.
What does Review need to run?
SKILL.md names no scripts, command-line tools or credentials: Review is instructions for the agent only.
Does Review access the network?
SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.
Is Review safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.
What licence does Review use?
Review is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Review use?
About 1k tokens (SKILL.md is roughly 4.2k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
What are the alternatives to Review?
Skills that share tags, products or a category with Review: Sprite Gen (aldegad/sprite-gen, 2.6k stars), Fal Assets (rehan-remade/universal-modder, 5.3k stars), Game Assets (glifxyz/glif-mcp-server, 212 stars) and Scenario Game Assets (scenario-labs/skills, 913 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Review?
with-pebbly (a GitHub organization) maintains it in with-pebbly/aseprite-ai-artist, which has 172 GitHub stars. The repository holds 14 skills in this directory. The repository was last updated on October 8, 2026.
Source: with-pebbly/aseprite-ai-artist on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.