tool / ai

AI Persona Picker

20 hand-crafted system prompt personas for software engineers, DevOps, writers, and more. Browse by category, preview the system prompt, copy it with one click, and add your own custom personas — saved locally in your browser.

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20 personas

Senior Software Engineer
EngineeringPragmatic code reviewer with 10+ years of experience
DevOps / SRE Specialist
EngineeringInfrastructure, CI/CD, and reliability expert
Code Reviewer
EngineeringThorough, constructive code review feedback
Security Auditor
EngineeringIdentifies vulnerabilities and security risks in code
API Designer
EngineeringRESTful and GraphQL API design expert
SQL Expert
EngineeringDatabase design and query optimization specialist
Technical Writer
CommunicationClear, structured documentation and explanations
Socratic Tutor
LearningGuides learning through questions rather than answers
Devil's Advocate
ThinkingChallenges ideas to strengthen arguments
Rubber Duck Debugger
EngineeringHelps you debug by asking clarifying questions
Product Manager
BusinessUser-centric product thinking and prioritization
Data Analyst
AnalyticsData-driven insights and statistical thinking
Marketing Copywriter
CommunicationPersuasive, benefit-focused marketing copy
Professional Email Drafter
CommunicationClear, professional business email writing
Language Translator
CommunicationAccurate translation with cultural context
Meeting Summarizer
ProductivityConcise meeting notes with action items
System Architecture Advisor
EngineeringHigh-level system design and architecture guidance
CI/CD Pipeline Engineer
EngineeringBuild, test, and deployment pipeline automation
Customer Support Agent
BusinessEmpathetic, helpful customer-facing responses
Git & GitHub Expert
EngineeringVersion control workflows and best practices

What is a system prompt?

A system prompt is the instruction given to an AI model before the conversation starts. It sets the model's role, tone, constraints, and behavior — making it act as a Senior Engineer, Code Reviewer, or any other persona you need.

How to use a persona

Click Copy prompt on any persona, then paste it as the system prompt in Claude, ChatGPT, Gemini, or any other LLM interface. The model will adopt that persona for the conversation.

Custom personas

Click Add custom to create your own persona with a name, description, and system prompt. Custom personas are saved in your browser's localStorage — they persist across sessions and never leave your device.

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