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Review

Organization
with-pebbly
review

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".

Overview

Publisherwith-pebbly
Repositoryaseprite-ai-artist
Skill namereview
Stars
456
Forks
28
Bundled files
Instructions only
LicenseMIT
Links
  • Markdown instructions

    A SKILL.md file the model loads on demand, so it only costs tokens when a request actually matches.

  • Works with any LLM

    AI skills are plain Markdown, not provider-specific code, so this works with GPT, Claude, Gemini, Grok, or a local model.

  • Self-contained

    Everything the model needs lives in the instructions — no extra files to sync.

  • Open source

    Published by with-pebbly on GitHub. Read the source before you install it.

Installation

Install the Review AI skill in TypingMind to use it with any LLM, or drop it into another agent that reads SKILL.md.

1

Install in TypingMind

TypingMind installs a skill straight from its GitHub folder — it reads SKILL.md, bundles the resource files, and stores the result locally.

  1. Open the app and go to Plugins → Skills.
  2. Choose "Install from GitHub".
  3. Paste the skill folder URL below and confirm.
    https://github.com/with-pebbly/aseprite-ai-artist/tree/main/skills/review
  4. Enable the skill in any chat where you want it available.
Plugins → Skills → Add skill → From GitHub URL, then paste the folder URL and press Continue.
2

Install in another agent

Any agent that reads the Agent Skills format can use this skill — copy the folder into that agent's skills directory.

Claude Code — .claude/skills
git clone --depth 1 https://github.com/with-pebbly/aseprite-ai-artist.git /tmp/aseprite-ai-artist
mkdir -p .claude/skills
cp -r /tmp/aseprite-ai-artist/skills/review .claude/skills/review
Restart Claude Code after copying so it picks up the new skill.

Use it in TypingMind

Enable Review in any TypingMind chat and the model takes it from there. Its name and description sit in the system prompt, and the moment a request matches, the model loads the full instructions itself — you never invoke it by hand, and it costs no tokens until it is actually used.

The model loads Review on its own as soon as a request matches it.

Works with any AI model

AI skills are plain Markdown instructions rather than provider-specific code, so Review is not tied to the model it was written for. Install it once in TypingMind and use it with GPT-5, Claude, Gemini, Grok, DeepSeek, Mistral, Llama, or a local model you run yourself — all on your own API keys.

  • Loaded only when it is needed

    The system prompt carries just the name and description. The instructions are fetched on the first matching request, so an idle skill costs nothing.

  • Switch models mid-chat

    Because the skill is instructions rather than code, changing model does not break it — the next model reads the same SKILL.md.

Skill instructions

This is the SKILL.md content the model loads. Read it before installing — a skill is instructions your model will follow.

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

validate

Reports 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.

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=3

Ghosts 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 #e04a6a to #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).

Frequently asked questions

What does the Review AI skill do?

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".

Why use Review on TypingMind?

Because you install it once and use it with any model. Review is plain Markdown rather than provider-specific code, so the same skill runs on GPT-5, Claude, Gemini, Grok, or a local model — and you can switch model mid-chat without it breaking. TypingMind runs on your own API keys, so you pay providers directly instead of a per-seat subscription, and your skills and chats stay in your own storage.

How do I install Review in TypingMind?

Open Plugins → Skills → Install from GitHub in TypingMind and paste https://github.com/with-pebbly/aseprite-ai-artist/tree/main/skills/review. TypingMind reads its SKILL.md and installs it as a skill you can enable per chat.

Which AI models can use Review?

Any model you connect in TypingMind. AI skills are plain Markdown instructions rather than provider-specific code, so GPT, Claude, Gemini, Grok, and local models can all load this skill when a request matches it.

How many AI models can I use with Review?

As many as you like. As long as a model supports skills, you can use Review with it — GPT, Claude, Gemini, Grok, DeepSeek, Mistral, Llama and more — all on TypingMind with your own API keys.

Is the Review AI skill free?

Yes. It is published on GitHub by with-pebbly under the MIT license. You only pay your own AI provider for the tokens you use.

What are AI skills?

An AI skill is a reusable instruction bundle that teaches an AI model how to do one specific task. It follows the open Agent Skills format: a SKILL.md file with a name and description, plus any scripts, templates or reference files the model may need. The model reads the instructions only when your request matches the skill, so an installed skill costs nothing until it is used.

How are AI skills different from plugins or MCP servers?

A plugin or MCP server gives a model new tools to call — code that runs somewhere and returns a result. An AI skill gives the model knowledge and process instead: how to approach a task, which steps to follow, what good output looks like. Skills are plain Markdown, so they need no server, no API key and no runtime, and they work with any model.

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