Documentation Index
Fetch the complete documentation index at: https://docs.runanywhere.ai/llms.txt
Use this file to discover all available pages before exploring further.
System prompts define how the model should behave, respond, and what role it should assume.
Basic Usage
val options = LLMGenerationOptions(
maxTokens = 200,
systemPrompt = """
You are a senior Kotlin developer.
Answer questions with code examples.
Use modern Kotlin conventions and coroutines.
""".trimIndent()
)
val result = RunAnywhere.generate(
prompt = "How do I make an HTTP request?",
options = options
)
Example: Code Assistant
val codeAssistant = LLMGenerationOptions(
maxTokens = 500,
temperature = 0.3f, // Lower for more precise code
systemPrompt = """
You are an expert Android developer assistant.
- Always provide working Kotlin code examples
- Use Jetpack libraries when appropriate
- Follow Material Design guidelines for UI code
- Include error handling in your examples
- Keep explanations concise
""".trimIndent()
)
val result = RunAnywhere.generate(
prompt = "How do I implement a RecyclerView with DiffUtil?",
options = codeAssistant
)
Example: Customer Support Bot
val supportBot = LLMGenerationOptions(
maxTokens = 300,
temperature = 0.7f,
systemPrompt = """
You are a friendly customer support assistant for TechCorp.
Guidelines:
- Be helpful, patient, and empathetic
- Keep responses under 3 paragraphs
- If you don't know something, say so
- Never make up product features
- End with asking if there's anything else you can help with
""".trimIndent()
)
Example: Creative Writer
val creativeWriter = LLMGenerationOptions(
maxTokens = 1000,
temperature = 1.2f, // Higher for creativity
topP = 0.95f,
systemPrompt = """
You are a creative fiction writer with a vivid imagination.
Write engaging stories with:
- Rich character development
- Descriptive settings
- Unexpected plot twists
- Emotional depth
""".trimIndent()
)
Example: JSON Output
val jsonFormatter = LLMGenerationOptions(
maxTokens = 500,
temperature = 0.1f, // Very low for consistent structure
systemPrompt = """
You are a data extraction assistant.
Always respond with valid JSON only.
Do not include any text outside the JSON object.
Use this schema: {"name": string, "category": string, "confidence": number}
""".trimIndent()
)
val result = RunAnywhere.generate(
prompt = "Extract product info: 'iPhone 15 Pro Max 256GB Space Black'",
options = jsonFormatter
)
// Result: {"name": "iPhone 15 Pro Max", "category": "smartphone", "confidence": 0.95}
Best Practices
Keep system prompts focused and specific: - Define the role clearly - Set boundaries on what
the model should/shouldn’t do - Specify output format if needed - Include examples for complex
tasks
| Goal | Temperature | System Prompt Style |
|---|
| Code generation | 0.1-0.4 | Precise, technical instructions |
| Creative writing | 0.9-1.3 | Open-ended, encourage creativity |
| Factual Q&A | 0.2-0.5 | Focus on accuracy, cite limitations |
| Conversation | 0.6-0.8 | Personality traits, response guidelines |