logo-creator

What the source does

• FilesystemNone observedNo reads or writes in the source
• NetworkNone observedNo outbound calls in the source
• ShellNone observedNo commands run in the source
• DependenciesPinnedNothing floats
• SecretsNone foundNo keys in source

Five audit layers

Gates applied: no behavioural pass.

['grep', 'REMOVE_BG_API_KEY', os.path.expanduser('~/.zshrc')],

print("Error: REMOVE_BG_API_KEY not found in environment or ~/.zshrc")

['grep', 'RECRAFT_API_KEY', os.path.expanduser('~/.zshrc')],

print("Error: RECRAFT_API_KEY not found in environment or ~/.zshrc")

system use found in code, not declared in the description

Audit 0.4.1 · source sha a5004a4238e6 · 28 Oct 2026Report an issue or request a re-scan

• Publisherresciencelab GitHub organizationOwner of the repository this skill is read from
• Source folderresciencelab/opc-skills/skills/logo-creatorThe exact folder we audited
• LicenceApache-2.0As the repository states it
• Commit pinned for this verdicta5004a4238e6A new audit runs when the source changes
• Repository statusNot archivedPushed today
• Sandboxed runNot runSkills are read, not executed; layer L4 is skipped

Its description: Create logos using AI image generation. Discuss style/ratio, generate variations, iterate with user feedback, crop, remove background, and export as SVG. Use when user wants to create a logo, icon, favicon, brand mark,…

---
name: logo-creator
description: Create logos using AI image generation. Discuss style/ratio, generate variations, iterate with user feedback, crop, remove background, and export as SVG. Use when user wants to create a logo, icon, favicon, brand mark, mascot, emblem, or design a logo.
---

# Logo Creator Skill

Create professional logos through AI image generation with an iterative design process.

## Prerequisites

**Required API Keys (set in environment):**
- `GEMINI_API_KEY` - Get from [Google AI Studio](https://aistudio.google.com/apikey)
- `REMOVE_BG_API_KEY` - Get from [remove.bg](https://www.remove.bg/api)
- `RECRAFT_API_KEY` - Get from [recraft.ai](https://www.recraft.ai/)

**Required Skills:**
- `nanobanana` - AI image generation (Gemini 3 Pro Image)



## File Output Location

All generated files should be saved to the `.skill-archive` directory:

```
.skill-archive/logo-creator/<yyyy-mm-dd-summaryname>/
```

**Example:**
```
.skill-archive/logo-creator/2026-01-18-opc-logo/
  logo-01.png
  logo-02.png
  ...
  logo-09-cropped.png
  logo-09-nobg.png
  logo-09.svg
  preview.html
```

**Guidelines:**
- Use current date in format `yyyy-mm-dd`
- Add short summary name (project/brand name, kebab-case)
- Create directory before generating first logo
- Keep all variations and iterations in same folder
- Final approved logo should be copied to user's desired location

## Workflow

### Step 1: Discovery & Requirements

Before generating, gather requirements from user:

**Ask about:**
1. **Project/Brand name** - What is the logo for?
2. **Style preference** - See [references/styles.md](./references/styles.md) for options:
   - Pixel art / 8-bit retro
   - Minimalist / flat design
   - 3D / isometric
   - Hand-drawn / sketch
   - Mascot / character
   - Monogram / lettermark
   - Abstract / geometric

3. **Aspect ratio** - Default is 1:1 (square), options:
   - `1:1` - Square (favicons, app icons)
   - `16:9` - Wide (headers, banners)
   - `4:3` - Standard
   - `2:3` - Portrait

4. **Color preferences**:
   - Monochrome (black & white)
   - Specific brand colors
   - Let AI decide

5. **Reference images** - Any existing logos or styles to reference?

**Wait for user confirmation before proceeding!**

### Step 2: Generate Logo Variations

Generate 20 logo variations (default) using the `nanobanana` skill:

```bash
# Generate single logo
python3 <nanobanana_skill_dir>/scripts/generate.py "{style} logo for {brand}, {description}, {colors}" \
  --ratio 1:1 -o .skill-archive/logo-creator/<date-name>/logo-01.png

# Batch generate 20 logos
python3 <nanobanana_skill_dir>/scripts/batch_generate.py "{style} logo for {brand}, {description}, {colors}" \
  -n 20 --ratio 1:1 -d .skill-archive/logo-creator/<date-name> -p logo
```

**Guidelines:**
- Use batch_generate.py for multiple variations (includes auto-delay)
- Save to `.skill-archive/logo-creator/<yyyy-mm-dd-summaryname>/` directory
- Use sequential naming: `logo-01.png`, `logo-02.png`, etc.

**Prompt Tips:**
- Include style keywords: "pixel art", "minimalist", "8-bit", "flat design"
- Specify colors: "black on white", "monochrome", "blue gradient"
- Add context: "tech startup", "food brand", "gaming company"
- Request format: "icon", "emblem", "mascot", "lettermark"

### Step 3: Create HTML Preview

Copy the preview template and open in browser:

```bash
cp <skill_dir>/templates/preview.html .skill-archive/logo-creator/<yyyy-mm-dd-summaryname>/preview.html
```

Then open in default browser:

```bash
open .skill-archive/logo-creator/<yyyy-mm-dd-summaryname>/preview.html
```

**IMPORTANT:** Update the HTML to include the correct number of logos generated.

### Step 4: Iterate with User

Ask user which logos they prefer:
- "Which logos do you like? (e.g., #5, #12, #18)"
- "What do you like about them?"
- "Any changes you'd want?"

Based on feedback:
1. Generate 10-20 more variations of favorite styles
2. Use naming: `logo-{original}-v{n}.png` (e.g., `logo-05-v1.png`)
3. Update HTML preview
4. Repeat until user selects final logo

### Step 5: Finalize Logo

Once user approves a logo, process it:

**5a. Crop whitespace (make 1:1 with no margins):**
```bash
python3 <skill_dir>/scripts/crop_logo.py {input.png} {output-cropped.png}
```

**5b. Remove background:**
```bash
python3 <skill_dir>/scripts/remove_bg.py {input.png} {output-nobg.png}
```

**5c. Convert to SVG:**
```bash
python3 <skill_dir>/scripts/vectorize.py {input.png} {output.svg}
```

### Step 6: Deliver Final Assets

Present final deliverables:

```
## Final Logo Assets

| File | Description | Size |
|------|-------------|------|
| logo.png | Original | 1024x1024 |
| logo-cropped.png | No margins, 1:1 | ~800x800 |
| logo-nobg.png | Transparent background | ~800x800 |
| logo.svg | Vector (scalable) | ~20KB |

All files saved to: `.skill-archive/logo-creator/<yyyy-mm-dd-summaryname>/`
Copy final logo to user's desired location.
```

## Quick Reference

### Common Prompt Patterns

**Pixel Art:**
```
Pixel art {subject} logo, 8-bit retro style, black pixels on white background, {size}x{size} grid, minimalist icon
```

**Minimalist:**
```
Minimalist {subject} logo, flat design, clean lines, {color} on white, simple geometric shapes
```

**Mascot:**
```
Cute {animal/character} mascot logo, friendly expression, {style} style, {colors}, suitable for brand icon
```

**Lettermark:**
```
Letter "{letter}" logo, modern typography, {style} design, {colors}, clean professional look
```

### Supported Aspect Ratios

- `1:1` - Square (default for logos)
- `2:3`, `3:2` - Portrait/Landscape
- `3:4`, `4:3` - Standard
- `4:5`, `5:4` - Photo
- `9:16`, `16:9` - Wide
- `21:9` - Ultra-wide

## References

- [references/styles.md](./references/styles.md) - Logo style guide with prompt examples
- [examples/opc-logo-creation.md](./examples/opc-logo-creation.md) - Full example conversation

Excerpt, first 5,870 characters of SKILL.md, verbatim from the audited commit. It is text from someone else’s repository, quoted so you can judge it before your agent reads it.

1. 2026-10-28
   ✕BLOCK D 69 / 100

   first audit · source a5004a4238e6

Questions about logo-creator

• github.com/resciencelab/opc-skills/tree/main/skills/logo-creator — the audited source at commit a5004a4238e6 and every finding aboveObserved · 28 Oct 2026

Spotted something wrong? Report a correction · Methodology