brand-creation - SKILL.md Agent Skill

name: brand-creation description: Create a complete brand identity for a project — name, logo, color palette, typography, and voice/tone — using nanobanana for visual generation. Use this skill when starting a new project ([Project A], [Project B], hackathons), when the user asks to "create a brand", "design a logo", "make an identity", "moodboard for X", or wants to formalize the look and feel of a product. Produces deliverables to assets/brand// ready for use in landing pages, decks, and social.

Brand Creation

Pipeline that takes a brief and produces a usable brand kit in ~2 hours. Combines nanobanana (image generation) with curated typography, palette extraction, and voice-tone definition.

Output structure

assets/brand/<project>/
├── brief.md              # the input that produced everything
├── moodboard/
│   ├── 01-{slug}.png
│   ├── 01-{slug}.prompt.txt
│   └── ...               # 6–10 images, sidecar prompts
├── logo/
│   ├── logo-mark.svg
│   ├── logo-mark.png         (1024px, transparent bg)
│   ├── logo-wordmark.svg
│   ├── logo-lockup.svg       (mark + wordmark)
│   └── iterations/           # all the rejected drafts, kept for trail
├── palette.json
├── palette-preview.png
├── typography.md
├── voice-tone.md
└── usage-guide.md            # do's and don'ts (1 page)

Phase 1: Brief (10 min)

Capture:

Project name (locked or candidates).
One-line description of what it does.
Target audience in concrete terms ("procurement officers in Argentine municipalities, age 35–55, low-tech but motivated by transparency").
Adjacent references the operator likes ("the Stripe of X", "feels like Linear meets Notion"). Concrete brands beat abstract adjectives.
Forbidden territory ("not corporate-bank", "not crypto-bro").

Save to brief.md. Everything downstream references this.

Phase 2: Moodboard (20 min)

Generate 6–10 images via nanobanana exploring different directions. Goal: explore divergent options before committing.

Prompt template:

Hero brand image for a [project type] called [name]. The product helps
[audience] [problem]. Visual direction [N]: [direction]. Style: [PBR
materials / flat illustration / editorial photo / isometric 3D / etc.].
Color emphasis: [warm earth / cool tech / monochrome / vibrant clash /
muted serious]. Composition: [hero subject centered / pattern / abstract
geometric / scene]. No text. Soft solid background.

Generate 2–3 images per direction across 3 directions = 6–9 images. Operator picks the direction that resonates. Save sidecar prompts always.

Phase 3: Logo (40 min)

Logo variations follow the chosen direction.

Wordmark (text-only)

Try 3–5 typography pairings. Use nanobanana Pro tier for accurate text rendering. Reference fonts by name when known ("Inter", "Söhne", "Migra", "ABC Diatype").

Mark (symbol-only)

Generate 6 symbol options that capture the project's metaphor. For [Project A], metaphors might be: gavel + chain link, ballot + checkmark, tender envelope sealed. For [Project B]: vault door + DNA helix, locked diary, encrypted heart.

Iterate the chosen mark 2–3 times via multi-turn editing in nanobanana to refine. Each turn keeps the previous output as reference for identity preservation.

Lockup

Combine mark + wordmark in a horizontal arrangement. Define safe zone (typically the height of the wordmark x-height around all sides).

SVG conversion

The output of nanobanana is raster. For final logo, either:

Trace to SVG using Penpot/Illustrator/Vectorizer.AI as the human step
OR keep raster at 4K resolution and ship .png — acceptable for hackathons, not for production brands

For a production brand ([Project A], [Project B]), the SVG is non-optional. The agent stops here and asks the operator to handle the trace step.

Phase 4: Palette (15 min)

Extract dominant colors from the chosen moodboard images. Curate to:

Primary — the brand's signature color. Used for CTAs, key UI accents.
Secondary — complement, used for hovers/highlights.
Neutrals — 4–6 grays from near-white to near-black, slightly tinted toward the primary for cohesion.
Semantic — success (green), warning (amber), danger (red), info (blue). Use Radix Colors as a starting point if no strong brand pull.

palette.json format:

{
  "primary": { "50": "#...", "100": "#...", ..., "900": "#..." },
  "secondary": { "50": "#...", ... },
  "neutral": { "50": "#...", ... },
  "success": { "500": "#..." },
  "warning": { "500": "#..." },
  "danger": { "500": "#..." },
  "info": { "500": "#..." }
}

Generates palette-preview.png showing all swatches with labels for quick reference.

Phase 5: Typography (10 min)

Pick a pairing:

Display — for headers and hero. Often a distinctive serif or display sans (e.g., Migra, Tobias, ABC Diatype, GT Sectra).
Body — readable, neutral. Inter, Söhne, Geist, IBM Plex Sans.
Mono — for code, ticker-style data. JetBrains Mono, Geist Mono, IBM Plex Mono.

Constraints:

Hackathons: Google Fonts only (free, easy to embed).
Production brands: licensed fonts OK if budget allows.

typography.md documents the pairing with size scale, weight, line-height recommendations.

Phase 6: Voice and tone (15 min)

Define how the brand talks. Format:

## Voice (consistent)

- **Direct** — short sentences, active verbs, no filler.
- **Honest** — admit limitations, no overclaiming.
- **Knowledgeable** — domain terminology when accurate, plain language
  when not.

## Tone (varies by context)

- **In docs/help**: warm, patient, examples-first.
- **In errors**: precise, blame-the-system-not-the-user.
- **In marketing**: confident, specific, anti-hype.

## Forbidden

- "Game-changing", "revolutionary", "innovative", "best-in-class".
- Corporate hedging: "leverage synergies", "robust solutions".
- Crypto bro: "WAGMI", "GM", "wen mainnet".

Phase 7: Usage guide (10 min)

One-page do's-and-don'ts with example pairings:

Logo on dark bg: ✅ light variant. ❌ original variant inverted.
Palette: ✅ primary on neutral. ❌ primary on secondary (clash).
Typography: ✅ display for headers, body everywhere else. ❌ display for body copy.
Spacing: 8pt grid baseline.

Integration with Google Drive

After operator confirmation, the kit auto-uploads to: Drive/Brands/<project>/<YYYY-MM-DD>/. Provides shareable view-only link.

What this skill does NOT do

Trademark search. Operator does this manually before locking a name.
Print specs (CMYK, paper stock). Out of scope; this is for digital.
Animated/motion brand. Static identity only.
Brand strategy/positioning. That's a separate exercise.