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crestapps-core-ai-personas

Skill for AI personas in CrestApps.Core 2.0, reusable characters with instructions, an assistant name, language, voice and avatar that AI profiles, chat interactions and profile templates link to by name. Covers opting in with AddPersonas and AddYesSqlStores or AddEntityCoreStores, CreateAIPersonaIndexSchemaAsync, IAIPersonaManager, persona Markdown files under Templates Personas and AddEmbeddedPersonas, linking with AIPersonaMetadata or the top-level PersonaId, how the persona block is prepended to the system message with the assistant_name Liquid variable, voice selection with IAIPersonaResolver SelectVoiceAsync, the ResolvePersonaAsync and SelectPersonaVoiceAsync service-provider helpers, showing the assistant name and avatar with AIChatAssistantDisplay, and custom IAIPersonaProvider sources. Use it when giving assistants a consistent identity across profiles, or when a persona's instructions, name or voice do not apply.

plugins/crestapps-core/skills/crestapps-core-ai-personas/SKILL.md

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Oct 21, 2026
License
MIT

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# CrestApps.Core AI Personas

A persona says **who** the assistant is: its instructions, the name it uses, its language, voice and avatar. The profile's system message and prompt templates still say **what** it does. A resource links to one optional persona by its technical name, so editing the persona changes every profile, interaction and template that links to it from the next message. Personas are not AI templates: a template is copied when used, a persona stays linked.

## Guidelines

- Personas are opt-in. Without `AddPersonas(...)`, persona links are kept but ignored and chats run with the profile's own instructions and voice.
- Link by `Name`, never by item id. Names survive export and import across tenants; ids do not. A persona's name cannot change once saved.
- Keep business rules in the profile. The persona block comes first in the system message, so the profile's rules win a conflict.
- Greetings stay with the profile's welcome message so one persona can serve profiles that open differently.
- Resolve personas only through `IAIPersonaResolver` (or the service-provider helpers) so chat, chat interactions, realtime and voice behave the same.

## Registration