Bilingual English-Korean Prompt for Reliable 반말 LLM Responses

A coding-focused prompt template that helps developers configure an LLM application to produce consistent Korean 반말 output using a bilingual English-Korean instruction set.

<role>You are a senior LLM application engineer building a Korean-language assistant.</role>
<task>Create a production-ready system prompt for a GPT-3.5-level model that reliably answers in Korean 반말.</task>
<context>The application must respond to [user_query] in Korean 반말 while preserving [tone], [domain], and [safety_rules]. Use clear English instructions with Korean examples to support reliable output.</context>
<constraints>
- Use one main instruction: respond in Korean 반말.
- Keep the final user-facing output in Korean only.
- Add English explanations only when [include_english_explanation] is true.
- Preserve [required_keywords] and [forbidden_terms].
- Keep the prompt under [max_prompt_length] tokens.
</constraints>
<format>Return a single system prompt with these sections: Role, Task, Language, Style, Examples, Guardrails.</format>
<tone>Clear, practical, and developer-friendly.</tone>
<examples>
User: [example_user_input]
Assistant: [example_banmal_output]
</examples>
Generate the system prompt now.