Email Banner Generation

Generate email marketing banners and headers using each::sense AI. Create newsletter headers, promotional banners, welcome emails, and seasonal campaigns opt...

Security Scan

The skill is mostly what it says (an instruction-only wrapper for each::sense image generation) but it omits and mismatches important details (notably an API key requirement and an unknown external endpoint), so its metadata and instructions are inconsistent.

Purpose & Capability

The SKILL.md clearly describes generating email banners via the each::sense /chat API at https://sense.eachlabs.run, which aligns with the skill name and description. However the registry metadata declares no required credentials while the examples explicitly use an X-API-Key header ($EACHLABS_API_KEY). That omission is an incoherence between claimed requirements and the runtime instructions.

Instruction Scope

The instructions are scoped to calling the each::sense API (curl examples, recommended dimensions, and use-case prompts). They do not instruct reading arbitrary local files or other system secrets. The included SSE reference documents streaming event formats (including a 'thinking_delta' event), so be aware that prompts/responses may stream intermediate reasoning and generation URLs back to the remote service.

Install Mechanism

This is an instruction-only skill with no install spec or code files, so nothing is written to disk or downloaded at install time — low install risk.

Credentials

The SKILL.md examples require an API key header (X-API-Key: $EACHLABS_API_KEY) but the skill metadata lists no required env vars/primary credential. Requesting an API key for an external service is proportionate to making API calls, but the missing declaration is a metadata mismatch that could confuse users and hide the need to supply a secret. The skill also sends potentially sensitive prompt content to an external domain (sense.eachlabs.run), so supplying private data or images could expose that data.

Persistence & Privilege

The skill does not request 'always: true' or any special system persistence, and there are no config paths or system modifications. The default ability to be invoked autonomously is set (disable-model-invocation: false) which is normal for skills and not by itself a red flag.

What to consider before installing

This skill is an instruction-only wrapper for an external each::sense API endpoint. Before installing or enabling it: (1) confirm you trust the domain https://sense.eachlabs.run and the owner — there is no homepage and the source is unknown; (2) expect to provide an API key (EACHLABS_API_KEY) even though the registry metadata omits it — ask the publisher to declare required env vars; (3) avoid sending sensitive text or private images in prompts because they are transmitted to a third-party service and stored at storage.eachlabs.ai according to the SSE docs; (4) verify the service's privacy/TOS and retention policies and whether generated outputs are publicly accessible URLs; (5) if you need stronger assurance, request the publisher to: add the required env var to metadata, provide a homepage or vendor contact, and clarify what data the API logs/retains. These inconsistencies make the skill suspicious but not clearly malicious — lack of declared credentials and unknown origin are the primary concerns.

Generate high-converting email marketing banners and headers using each::sense. This skill creates images optimized for email clients with standard 600px width for maximum compatibility.

Features

• Newsletter Headers: Professional headers for recurring newsletters
• Promotional Banners: Sale announcements and discount campaigns
• Product Announcements: New product and feature launch visuals
• Welcome Emails: First impression headers for new subscribers
• Seasonal Campaigns: Holiday and seasonal themed banners
• Event Invitations: Webinar, conference, and event headers
• Flash Sale Banners: Urgency-driven countdown style graphics
• Testimonial Banners: Customer review and social proof visuals
• Email Signatures: Professional branded signature banners

Quick Start

curl -X POST https://sense.eachlabs.run/chat \
  -H "Content-Type: application/json" \
  -H "X-API-Key: $EACHLABS_API_KEY" \
  -H "Accept: text/event-stream" \
  -d '{
    "message": "Create an email newsletter header, 600px wide, for a tech company weekly digest. Modern, clean design with blue gradient background.",
    "mode": "max"
  }'

Email Banner Sizes & Best Practices

Banner Type	Dimensions	Use Case
Standard Header	600x200	Newsletter headers, general announcements
Hero Banner	600x300	Promotional campaigns, product launches
Compact Header	600x150	Minimalist headers, signature banners
Full Feature	600x400	Product showcases, event invitations
Signature Banner	600x100	Email signature graphics

Note: 600px width is the email-safe standard that renders correctly across all major email clients (Gmail, Outlook, Apple Mail, etc.).

Use Case Examples

1. Newsletter Header

curl -X POST https://sense.eachlabs.run/chat \
  -H "Content-Type: application/json" \
  -H "X-API-Key: $EACHLABS_API_KEY" \
  -H "Accept: text/event-stream" \
  -d '{
    "message": "Create a 600x200px email newsletter header for a tech startup weekly digest. Clean modern design with subtle geometric patterns, dark blue to purple gradient background. Include space for logo on the left side. Professional and contemporary feel.",
    "mode": "max"
  }'

2. Promotional Sale Banner

curl -X POST https://sense.eachlabs.run/chat \
  -H "Content-Type: application/json" \
  -H "X-API-Key: $EACHLABS_API_KEY" \
  -H "Accept: text/event-stream" \
  -d '{
    "message": "Create a 600x300px promotional email banner for a 50% off summer sale. Bright, energetic design with coral and yellow colors. Include visual space for SALE headline text and shop now button. E-commerce fashion brand style.",
    "mode": "max"
  }'

3. Product Announcement Banner

curl -X POST https://sense.eachlabs.run/chat \
  -H "Content-Type: application/json" \
  -H "X-API-Key: $EACHLABS_API_KEY" \
  -H "Accept: text/event-stream" \
  -d '{
    "message": "Create a 600x300px email banner announcing a new smartphone launch. Premium tech aesthetic with dark background, subtle light rays, and space for product image placement. Apple-style minimalism with focus on elegance.",
    "mode": "max"
  }'

4. Welcome Email Header

curl -X POST https://sense.eachlabs.run/chat \
  -H "Content-Type: application/json" \
  -H "X-API-Key: $EACHLABS_API_KEY" \
  -H "Accept: text/event-stream" \
  -d '{
    "message": "Create a 600x250px welcome email header for a fitness app. Warm, inviting design with energetic person silhouette, sunrise gradient (orange to yellow), motivational atmosphere. Space for Welcome message and brand logo.",
    "mode": "max"
  }'

5. Holiday/Seasonal Banner

curl -X POST https://sense.eachlabs.run/chat \
  -H "Content-Type: application/json" \
  -H "X-API-Key: $EACHLABS_API_KEY" \
  -H "Accept: text/event-stream" \
  -d '{
    "message": "Create a 600x300px holiday email banner for Christmas sale campaign. Festive design with snow, pine trees silhouettes, red and gold color scheme. Elegant with subtle sparkles, space for holiday greeting text and discount badge.",
    "mode": "max"
  }'

6. Event Invitation Header

curl -X POST https://sense.eachlabs.run/chat \
  -H "Content-Type: application/json" \
  -H "X-API-Key: $EACHLABS_API_KEY" \
  -H "Accept: text/event-stream" \
  -d '{
    "message": "Create a 600x350px email header for a virtual conference invitation. Professional corporate design with abstract network visualization, deep blue and teal colors. Include visual areas for event name, date, and register button. Tech conference aesthetic.",
    "mode": "max"
  }'

7. New Collection Announcement

curl -X POST https://sense.eachlabs.run/chat \
  -H "Content-Type: application/json" \
  -H "X-API-Key: $EACHLABS_API_KEY" \
  -H "Accept: text/event-stream" \
  -d '{
    "message": "Create a 600x300px email banner for a fashion brand new spring collection launch. Elegant, high-fashion aesthetic with soft pastel colors (blush pink, sage green). Minimalist with space for NEW COLLECTION text overlay. Luxury brand feel.",
    "mode": "max"
  }'

8. Flash Sale Countdown Banner

curl -X POST https://sense.eachlabs.run/chat \
  -H "Content-Type: application/json" \
  -H "X-API-Key: $EACHLABS_API_KEY" \
  -H "Accept: text/event-stream" \
  -d '{
    "message": "Create a 600x250px flash sale email banner with urgency. Bold design with red and black colors, dynamic diagonal stripes or lightning bolt elements. Include visual space for countdown timer display boxes (hours:minutes:seconds). High energy, act now feeling.",
    "mode": "max"
  }'

9. Testimonial/Review Banner

curl -X POST https://sense.eachlabs.run/chat \
  -H "Content-Type: application/json" \
  -H "X-API-Key: $EACHLABS_API_KEY" \
  -H "Accept: text/event-stream" \
  -d '{
    "message": "Create a 600x280px email banner for customer testimonials section. Clean design with soft gradient background (light gray to white), space for circular customer photo placeholder, quote marks design element, 5-star rating visual. Trust-building, professional layout.",
    "mode": "max"
  }'

10. Email Signature Banner

curl -X POST https://sense.eachlabs.run/chat \
  -H "Content-Type: application/json" \
  -H "X-API-Key: $EACHLABS_API_KEY" \
  -H "Accept: text/event-stream" \
  -d '{
    "message": "Create a 600x100px email signature banner for a marketing agency. Sleek horizontal design with subtle gradient, space for company logo on left, social media icon placeholders on right. Professional, minimal, brand-forward design.",
    "mode": "max"
  }'

Best Practices

Email-Safe Design

• Width: Always use 600px width for maximum email client compatibility
• File Size: Keep images under 1MB for fast loading
• Format: PNG for graphics with transparency, JPG for photos
• Alt Text: Always include descriptive alt text for accessibility
• Retina Support: Consider 1200px width scaled to 600px for retina displays

Visual Guidelines

• Text Space: Leave clear areas for text overlays
• Contrast: Ensure text areas have sufficient contrast
• Brand Consistency: Maintain consistent colors and style across campaigns
• Mobile: Design with mobile email clients in mind (single column)
• Safe Zones: Keep critical elements away from edges

Content Tips

• Clear Hierarchy: Most important information should be immediately visible
• Single Focus: One main message per banner
• CTA Visibility: Ensure call-to-action areas stand out
• Minimal Text: Use supporting HTML text instead of image text when possible

Prompt Tips for Email Banners

When creating email banners, include these details in your prompt:

1. Dimensions: Specify exact size (e.g., 600x300px)
2. Banner Type: Header, promotional, announcement, etc.
3. Color Scheme: Brand colors or desired palette
4. Text Space: Where headlines/CTAs will be placed
5. Style: Minimalist, bold, elegant, playful, etc.
6. Industry: E-commerce, SaaS, fitness, fashion, etc.

Example Prompt Structure

"Create a [width]x[height]px email [banner type] for [industry/brand].
[Style description] with [color scheme].
Include space for [text elements like headline, CTA, logo].
[Mood/feeling] aesthetic."

Mode Selection

Ask your users before generating:

"Do you want fast & cheap, or high quality?"

Mode	Best For	Speed	Quality
max	Final campaign banners, A/B testing winners	Slower	Highest
eco	Quick drafts, concept exploration, bulk variations	Faster	Good

Multi-Turn Creative Iteration

Use session_id to iterate on email banners:

# Initial banner
curl -X POST https://sense.eachlabs.run/chat \
  -H "Content-Type: application/json" \
  -H "X-API-Key: $EACHLABS_API_KEY" \
  -H "Accept: text/event-stream" \
  -d '{
    "message": "Create a 600x300px promotional email banner for Black Friday sale. Bold design with dark background.",
    "session_id": "email-campaign-bf2024"
  }'

# Iterate based on feedback
curl -X POST https://sense.eachlabs.run/chat \
  -H "Content-Type: application/json" \
  -H "X-API-Key: $EACHLABS_API_KEY" \
  -H "Accept: text/event-stream" \
  -d '{
    "message": "Add more gold accents and make the design more premium looking. Include space for 70% OFF text.",
    "session_id": "email-campaign-bf2024"
  }'

# Request size variation
curl -X POST https://sense.eachlabs.run/chat \
  -H "Content-Type: application/json" \
  -H "X-API-Key: $EACHLABS_API_KEY" \
  -H "Accept: text/event-stream" \
  -d '{
    "message": "Create a compact 600x150px version of this banner for email signature use.",
    "session_id": "email-campaign-bf2024"
  }'

Campaign Batch Generation

Generate multiple variations for A/B testing:

# Variation A - Bold colors
curl -X POST https://sense.eachlabs.run/chat \
  -H "Content-Type: application/json" \
  -H "X-API-Key: $EACHLABS_API_KEY" \
  -H "Accept: text/event-stream" \
  -d '{
    "message": "Create a 600x300px email banner for spring sale - bold vibrant colors, energetic design",
    "mode": "eco"
  }'

# Variation B - Minimal design
curl -X POST https://sense.eachlabs.run/chat \
  -H "Content-Type: application/json" \
  -H "X-API-Key: $EACHLABS_API_KEY" \
  -H "Accept: text/event-stream" \
  -d '{
    "message": "Create a 600x300px email banner for spring sale - minimal clean design, soft pastels",
    "mode": "eco"
  }'

# Variation C - Photo-centric
curl -X POST https://sense.eachlabs.run/chat \
  -H "Content-Type: application/json" \
  -H "X-API-Key: $EACHLABS_API_KEY" \
  -H "Accept: text/event-stream" \
  -d '{
    "message": "Create a 600x300px email banner for spring sale - lifestyle photography style, person in spring setting",
    "mode": "eco"
  }'

Error Handling

Error	Cause	Solution
Failed to create prediction: HTTP 422	Insufficient balance	Top up at eachlabs.ai
Content policy violation	Prohibited content	Adjust prompt to comply with content policies
Timeout	Complex generation	Set client timeout to minimum 10 minutes

Related Skills

• each-sense - Core API documentation
• meta-ad-creative-generation - Meta/Facebook ad creatives
• product-photo-generation - E-commerce product shots