OPC Skills is a collection of reusable instruction folders, scripts, and resources that extend coding agents with specialized tasks for solopreneurs and one-person companies. Its skills cover areas such as search optimization, demand research, domain discovery, branding, social-media assets, and platform-specific research. The catalogue entries are the project's own skills, plugins, and hook.
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 ReScienceLab/opc-skills --skill logo-creatorgit clone --depth 1 https://github.com/ReScienceLab/opc-skillsWrote 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/resciencelab/opc-skills/logo-creator)<a href="https://agentmods.dev/skills/resciencelab/opc-skills/logo-creator"><img src="https://agentmods.dev/badge/skills/resciencelab/opc-skills/logo-creator/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/resciencelab/opc-skills/logo-creator"><img src="https://agentmods.dev/badge/skills/resciencelab/opc-skills/logo-creator.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- Socket warn
- Snyk warn
- NVIDIA SkillSpector pass
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 | $0.00059 | $0.01623 |
| Opus 5.5 | $0.00024 | $0.00649 |
| Sonnet 5.5 | $0.00012 | $0.00325 |
| Haiku 4.5 | $0.00006 | $0.00162 |
Grade A, and why
logo-creator 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.
Copies of this mod
1 near-identical copy found in the catalogue:
- logo-creator — 94% identical, 8 lines differ
How it starts
The opening of the file, as written. The whole thing — 209 lines — stays where its author put it; the contents beside it link to each section on GitHub.
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 StudioREMOVE_BG_API_KEY- Get from remove.bgRECRAFT_API_KEY- Get from 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:
-
Project/Brand name - What is the logo for?
-
Style preference - See references/styles.md for options:
- Pixel art / 8-bit retro
- Minimalist / flat design
- 3D / isometric
- Hand-drawn / sketch
- Mascot / character
- Monogram / lettermark
- Abstract / geometric
-
Aspect ratio - Default is 1:1 (square), options:
1:1- Square (favicons, app icons)16:9- Wide (headers, banners)4:3- Standard2:3- Portrait
-
Color preferences:
- Monochrome (black & white)
- Specific brand colors
- Let AI decide
-
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:
What ships with it
24 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.
- .claude-plugin/plugin.json 654 B
- examples/images/logo-01.png 257 KB
- examples/images/logo-02.png 437 KB
- examples/images/logo-03.png 271 KB
- examples/images/logo-04.png 145 KB
- examples/images/logo-05.png 281 KB
- examples/images/logo-06.png 159 KB
- examples/images/logo-07.png 220 KB
- examples/images/logo-08.png 228 KB
- examples/images/logo-09-v1.png 137 KB
- examples/images/logo-09-v2.png 366 KB
- examples/images/logo-09-v3.png 287 KB
- examples/images/logo-09-v4.png 237 KB
- examples/images/logo-09-v5.png 103 KB
- examples/images/logo-09-v6.png 145 KB
- examples/images/logo-09.png 151 KB
- examples/images/opc-logo-final.svg 18 KB
- examples/images/opc-logo-selected.png 151 KB
- examples/opc-logo-creation.md 2.7 KB
- references/styles.md 5.8 KB
- scripts/crop_logo.py 2.5 KB runs code
- scripts/remove_bg.py 2.4 KB runs code
- scripts/vectorize.py 3.3 KB runs code
- templates/preview.html 10 KB
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 · 209 lines · 59 tokens per session scan A 8e33e6e4277a
logo-creator is a skill published in the GitHub repository ReScienceLab/opc-skills (1,878 stars, last pushed yesterday), licensed Apache-2.0. It adds 59 tokens to every session and 1,623 once invoked, about $0.0002 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.
Other skills, from other repositories
clean-interface-design
Design clean, calm, uncluttered interfaces that don't read as templated AI output. Use when building or restyling any UI (web, iOS, Android, macOS) and it needs visual hierarchy, restraint, spacing discipline, one clear primary action, and a cohesive look. Covers accent color, whitespace, corner radius, type scale…
landing-page-conversion
Build or improve landing pages and marketing sites that convert, not just look good. Use when writing a hero, structuring a page, choosing a CTA, adding social proof, or diagnosing why a page isn't converting. Covers positioning, copy-first workflow, the above-the-fold contract, page narrative, CTAs, trust, and…
ship-quality-gate
Run the deterministic auditors over a real project before it ships — design drift, security headers, generated-default tells, SEO/GEO signals, delivery signals, Apple and Android project configuration — and read the results correctly, disclosure list included. Use when someone asks "audit this", "is this ready to…
apple-platform-design
Design iOS, iPadOS, and macOS apps that feel native, in the Liquid Glass era. Use when building or reviewing Apple-platform UI — navigation, controls, sheets, materials, typography, haptics — or deciding what must change when porting from web/Android. Covers Apple's HIG, the Liquid Glass design language (iOS 26 /…
design-system-audit
Find out whether a codebase actually has a design system or is re-deciding the basics on every screen — count the distinct colors, sizes, radii, shadows and spacings, collapse the near-duplicates, and migrate onto tokens. Use when inheriting a codebase, before a redesign, when a UI "feels inconsistent but I can't say…
saglitzdesign
Design, redesign, build, restyle, improve, critique, review, audit, simplify, polish, or animate a user interface — the front door into SaglitzDesign's eight design skills, for whichever one the work actually needs. Covers landing pages, marketing sites, dashboards, app screens, components, forms, onboarding, empty…