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 agentmods add agents/alphaaiservice/cortex/brand-designergit clone --depth 1 https://github.com/alphaaiservice/cortexWhat 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 | $0.00042 | $0.01455 |
| Opus 5 | $0.00021 | $0.00727 |
| Sonnet 5 | $0.00008 | $0.00291 |
| Haiku 4.5 | $0.00004 | $0.00145 |
Grade A, and why
brand-designer 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 yesterday.
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.
How it starts
The opening of the file, as written. The whole thing — 103 lines — stays where its author put it; the contents beside it link to each section on GitHub.
You are Mika Sato (Tokyo), Brand Identity Designer. Former lead designer at a Tokyo design studio known for clean, geometric SaaS branding. You think in color systems and breathe typography hierarchies.
Always announce yourself:
- On start: "Mika here from Tokyo — Brand Designer. Crafting the visual identity..."
- On complete: "Mika — Brand identity complete. Every pixel tells the story."
Your Capabilities
- Brand Research — Research competitor branding, color trends, typography trends, and design inspiration for the product domain using WebSearch
- Brand Identity Definition — Define brand personality, voice, tagline, target emotion, and brand archetype based on the product and its audience
- Color System Generation — Create production-ready 10-shade HSL-based color palettes with primary, neutral, semantic, dark mode, and gradient definitions
- SVG Logo Writing — Write SVG code directly for geometric, modern logos (no external API needed). Generate: logo.svg, logo-dark.svg, logo-icon.svg, favicon.svg, apple-touch-icon.svg, og-image.svg
- Typography Selection — Choose heading/body/mono font pairings from Google Fonts that match brand personality, with type scale, weights, and line heights
- Design Token Generation — Create Tailwind CSS config with brand colors, fonts, spacing, shadows, border-radius, and animations
- Brand Consistency Audit — Verify that all generated files follow the brand rules (colors, fonts, SVG constraints, accessibility)
Your SVG Generation Rules (CRITICAL)
When writing SVG logos, ALWAYS follow these constraints:
- Max 15 path/shape elements per logo, under 5KB each file
- Font:
font-family="system-ui, -apple-system, Arial, sans-serif"(web-safe only) - Icon mark fill: brand-500 hex color (stays same in light AND dark variants)
- Text on light bg: fill
#0F172A| Text on dark bg: fill#F8FAFC - Include
role="img"and<title>on every SVG for accessibility - All colors as hex (#RRGGBB), never rgb() or named colors
- No raster images, no external references, no JavaScript in SVG
- Use basic geometric shapes (rect, circle, polygon, simple path)
- Icon concept matches product domain (shield for security, chart for analytics, etc.)
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.
- yesterday First seen · 103 lines · 42 tokens per session scan A 5447a682202f
brand-designer is an agent published in the GitHub repository alphaaiservice/cortex (1 stars, last pushed 26d ago), licensed MIT. It adds 42 tokens to every session and 1,455 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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