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Prompt Library: How to Get the Best Out of Lyyli.ai

Mikko Oksanen

Mikko Oksanen

CEO & Co-Founder

January 22, 20268 min read
Prompt library: How to get the best out of Lyyli.ai

A good prompt is like a good brief – the clearer you tell what you want, the better result you get. An AI assistant doesn't guess your thoughts, but it understands clear instructions.

At its best, a prompt tells who you're writing to, what for, in which channel, and in what style. The more context you give, the less you need to edit.

Here's a comprehensive library of ready prompts for different communication situations. You can use these as-is or customize them to your needs.

Quick Commands for Everyday Use

Sometimes you just need a quick message without long instructions. These short prompts handle daily communication lightning-fast:

Thank You Message

Thank you for yesterday's meeting. Short and friendly.

Reminder to Colleague

Remind Pekka about tomorrow's deadline. Casual but clear, for Slack.

Meeting Time Suggestion

Suggest two times to the client for next week's demo meeting. For email, professionally.

Out of Office Message

Out of office message for email: on vacation June 15-22, for urgent matters contact Saara.

Congratulations Message for LinkedIn

Congratulate Laura on her promotion on LinkedIn. Genuine and warm, not too long.

Quick Update to Client

Tell the client that the project is on schedule. Positive and trust-building, 3-4 sentences.

Meeting Invitation Text

Invite the team to a weekly meeting on Friday at 10 AM. Agenda: week's status and next week's priorities. For calendar invitation.

Email Messages

Professional email messages for different situations:

Sales Message to Potential Client

Write a sales message to a potential B2B client interested in streamlining communication.

Target: Communications director at a mid-sized tech company
Goal: Get the recipient to book a demo
Channel: Email
Length: 150–200 words
Tone: Expert but approachable, not too salesy

Include:
• Brief identification of the client's challenge (communication inefficiency)
• Concrete benefit (time savings + authenticity)
• Clear CTA (book demo)

Thank You Message After Event

Write a thank you message to a client who attended my product presentation.

Target: Attendee who was actively engaged in the demo
Goal: Reinforce positive experience and offer next step
Channel: Email
Length: 100–150 words
Tone: Warm and grateful, but professional

Include:
• Thanks for attending
• Brief summary of what was covered
• Offer for follow-up conversation or trial

LinkedIn Posts

Impactful LinkedIn posts that build expert brand:

Thought Leadership Post

Write a LinkedIn post on the topic "Why AI doesn't replace communication professionals, but strengthens them".

Target: Communication professionals, marketers, and leaders
Goal: Spark discussion and strengthen expert brand
Channel: LinkedIn
Length: 800–1000 characters
Tone: Thought-provoking, bold but constructive

Structure:
• Start with a provocative statement or question
• Share 2–3 concrete perspectives
• End with an open question that encourages commenting

Use paragraph breaks and emojis in moderation.

Customer Story

Write a LinkedIn post based on a customer story.

Target: Potential clients considering using AI in communication
Goal: Show concrete benefit with a real example
Channel: LinkedIn
Length: 600–800 characters
Tone: Inspiring and credible, not too promotional

Content:
• Customer's starting situation (challenge)
• Solution (using Lyyli.ai)
• Concrete result (e.g., time savings, better engagement)
• Closing call: "If this sounds familiar, let's talk more."

Use quotation marks for customer comment if possible.

Social Media Updates

Energetic updates for different channels:

Instagram Post Text

Write Instagram post text for a product update.

Target: Younger professionals and startup crowd
Goal: Spark interest and direct to profile/link
Channel: Instagram
Length: 100–150 words
Tone: Casual, energetic, and visual

Structure:
• Start by hooking with a question or statement
• Tell about the update concisely
• End with CTA (e.g., "Try it yourself – link in bio")

Use 3–5 relevant hashtags at the end.

X (Twitter) Thread

Write a 5-part tweet thread on the topic "5 ways to streamline communication without losing your authenticity".

Target: Busy professionals and entrepreneurs
Goal: Share valuable content and demonstrate expertise
Channel: X (Twitter)
Length: Each tweet max 280 characters
Tone: Concise, concrete, and easily shareable

Structure:
1. Opening tweet: Provocative statement + promise of thread
2.–5. Each tip as its own tweet, clearly numbered
6. Closing tweet: Summary + CTA

Use emojis as visual separators.

Internal Communication

Clear and encouraging team messaging:

Team Update to Slack

Write a weekly update to the team on Slack.

Target: Own team (developers, sales, support)
Goal: Keep everyone up to date and motivate
Channel: Slack (#general)
Length: 150–200 words
Tone: Encouraging, open, and energetic

Include:
• Week's key achievements
• Upcoming priorities
• Thanks to the team for good work
• Possible humorous note or emoji

Use bullets for clarity.

Change Communication Internally

Write an internal email to the team about a process change.

Target: Entire team
Goal: Explain the change, reduce uncertainty, and get the team on board
Channel: Internal email
Length: 250–300 words
Tone: Clear, empathetic, and solution-focused

Structure:
• What's changing and why
• How the change affects in practice
• What's expected from the team
• Who to contact with questions

Avoid bureaucracy – speak to the person.

Image Requests

When creating images with AI, you can directly reference visual settings, as long as they're defined in settings. In settings, you can define brand colors and fonts, load visual elements for illustration use, such as icons or logos, and during creation select reference images that have been pre-loaded to Stock images.

LinkedIn Post Illustration

Use case: You need a visual element for a LinkedIn post

Create a LinkedIn post illustration on the topic [TOPIC].
Style: Modern, professional editorial illustration
Colors: Use forest green as primary color, muted turquoise and soft rose as accents, white background
Mood: [Inspiring/Educational/Thought-provoking]

Visual concept:
• Main element: [Describe the key visual element]
• Supporting elements: [List 2-3 supporting elements]
• Composition focus: [Left/Center/Right]

Technical requirements:
• Size: 1200x675 pixels (16:9)
• Flat design with subtle shadows
• High contrast for mobile reading
• Enough white space for text addition [top/bottom]

Blog Article Hero Image

Use case: You need a visually impactful header image for a blog article

Create a hero image for a blog article on the topic "[ARTICLE TITLE]".
Style: Premium editorial illustration, SaaS aesthetic
Color palette: Forest green primary color, muted turquoise and soft rose accents, light gray (#F5F5F5) for background elements

Composition:
• Horizontal layout
• Image ratio: 1200x600 pixels (2:1)
• Focus point in left third
• Leave space in top left corner for title

Social Media Square Image

Use case: Instagram, Facebook, or other channels requiring square images

Create a square social media image on the topic [TOPIC].
Style: Friendly, modern illustration
Colors: Forest green, muted turquoise, soft rose, white background

Technical requirements:
• Size: 1080x1080 pixels (1:1)
• Symmetrical or centered composition
• Clear focus point in center
• Enough contrast for text addition

Infographic Illustration

Use case: Visualization of data, process, or concept

Create an infographic illustration on the topic [TOPIC/PROCESS/DATA].
Style: Clear, informative data visualization
Colors: Forest green primary color, use muted turquoise and soft rose to distinguish categories

Layout:
• Direction: [Horizontal/Vertical/Both]
• Readability: Numbers and texts sufficiently large
• Icons: Simple, recognizable
• Arrows or lines guiding the eye
• Enough white space

Tips for Effective Prompting

1. Provide Context

Tell what situation you're in and why you're writing.

2. Define Target

Who are you messaging? What do they already know about the topic?

3. Set Goal

Do you want to sell, inform, inspire, or activate?

4. Limit Length

Give word or character count, so you get appropriately sized text.

5. Guide Tone

Formal or casual? Expert or friendly?

6. Request Structure

Bullets, paragraphs, numbered lists – tell how you want content structured.

7. Test and Refine

If the result isn't perfect, give additional instructions. Lyyli learns your style better the more you use it.

8. Remember: Short Works Too!

For everyday communication, a few words of instruction often suffice. Lyyli fills in the rest.

Finally

These prompts are starting points – you can and should customize them to your needs. The more you use Lyyli.ai, the better it learns your style and your organization's voice. Start with these prompts and develop your own library as you use it.

Start using Lyyli and see how you speed up your communication without losing your authenticity.

Want to try these prompts in practice?

Lyyli.ai learns your style and your organization's voice as you use it. Start with a free trial and see how you speed up your communication.

  • Lyyli.ai features and onboarding
  • Concrete examples of using prompts
  • Customized demo for your specific needs
  • Best practices for AI-assisted communication

About the author

Mikko Oksanen

Mikko Oksanen

CEO & Co-Founder

Mikko leads Lyyli.ai and writes about practical communication development for expert organizations.