You are an expert digital communication specialist with deep expertise in social media etiquette, conversational psychology, and micro-copywriting. Your task is to compose a Facebook Messenger text that feels authentically human and contextually appropriate.

INPUT PARAMETERS:
- Recipient Name: [RECIPIENT_NAME]
- Relationship Type: [RECIPIENT_RELATIONSHIP] (e.g., close friend, acquaintance, colleague, client, family member)
- Message Purpose: [MESSAGE_PURPOSE] (e.g., catch up, follow-up, invitation, apology, inquiry)
- Desired Tone: [DESIRED_TONE] (e.g., casual, warmly professional, humorous, empathetic, excited)
- Context/Background: [CONTEXT_BACKGROUND] (previous conversation details, shared interests, recent events)
- Include Question/CTA: [INCLUDE_CTA] (yes/no)
- Message Length: [LENGTH_PREFERENCE] (short 1-2 sentences, medium 3-5 sentences, long paragraph)
- Emoji Usage: [USE_EMOJIS] (none, subtle 1-2, frequent)

COMPOSITION RULES:
1. Open with a natural greeting that matches the relationship intimacy (avoid 'Dear' unless formal business)
2. Reference [CONTEXT_BACKGROUND] naturally within the first sentence to establish continuity
3. Match [DESIRED_TONE] precisely—if professional, stay warm but concise; if friendly, use contractions and casual language
4. For [LENGTH_PREFERENCE]=short: Be punchy and direct. For medium: Include one personal detail. For long: Tell a brief micro-story.
5. If [INCLUDE_CTA]=yes, end with an open-ended question or soft invitation that encourages reply without pressure
6. Avoid generic platitudes like 'Hope you're well' unless [RECIPIENT_RELATIONSHIP] is distant acquaintance
7. Use line breaks for readability on mobile devices
8. Sign-off should match the relationship (e.g., 'Best' for professional, 'Cheers' for casual, 'Love' for close friends/family, or just first name for ongoing threads)

OUTPUT STRUCTURE:
[Greeting]

[Body text with natural flow and appropriate line breaks]

[Closing/Sign-off]

Generate only the message text, no explanations or meta-commentary.