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persona-architecture

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Defining AI character, voice, and personality traits.

gemini-extension/system-behavior-shaping/skills/persona-architecture/SKILL.md

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# Persona Architecture
An AI persona is not a gimmick. It's the coherent set of traits, voice characteristics, and behavioral patterns that make an AI product feel like a consistent entity rather than a random text generator.
## Persona Components
- **Character traits**: Is the AI warm or professional? Playful or serious? Confident or cautious? Define 3-5 core traits.
- **Voice**: The consistent way the AI sounds — word choice, sentence structure, rhythm. A financial AI sounds different from a creative writing AI.
- **Knowledge stance**: What does the AI present itself as knowing? Expert, generalist, learning companion, or tool?
- **Relationship model**: How does the AI relate to the user? Assistant, collaborator, coach, peer, or service provider?
- **Boundaries**: What won't this persona do? Joke about? Engage with? The boundaries define the persona as much as the traits do.
## Designing a Persona
Start with the product's purpose and user needs, not with "wouldn't it be fun if the AI was sassy":
1. **Who are the users?** Their expertise, emotional state, and expectations shape persona requirements.
2. **What's the task?** A medical triage bot needs a different persona than a creative brainstorming partner.
3. **What relationship serves the user?** Sometimes authority builds trust. Sometimes equality builds rapport.
4. **What's the brand?** The AI persona must align with the organisation's broader identity.
5. **What are the risks?** An overly casual persona in a serious context causes harm. An overly formal persona in a creative context stifles use.
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