# folk glossary — personal AI terms, defined

> Plain-English definitions of the terms behind personal AI assistants and AI agents.

- [Personal AI](https://www.getfolk.app/glossary/personal-ai) (https://www.getfolk.app/glossary/personal-ai.md) — A personal AI is an artificial-intelligence assistant dedicated to one person - it learns your preferences, remembers your context, and takes actions on your behalf across everyday life.
- [AI Agent](https://www.getfolk.app/glossary/ai-agent) (https://www.getfolk.app/glossary/ai-agent.md) — An AI agent is an AI system that takes actions to accomplish a goal - using tools, browsing the web, and completing multi-step tasks autonomously, not just generating text.
- [Agentic AI](https://www.getfolk.app/glossary/agentic-ai) (https://www.getfolk.app/glossary/agentic-ai.md) — Agentic AI refers to AI systems that act with autonomy - setting sub-goals, using tools, and taking multi-step actions to complete tasks, rather than only responding to prompts.
- [AI Concierge](https://www.getfolk.app/glossary/ai-concierge) (https://www.getfolk.app/glossary/ai-concierge.md) — An AI concierge is a personal AI that handles real-world tasks and logistics for you - reservations, travel, recommendations, and errands - like a human concierge, but always available.
- [Persistent Memory](https://www.getfolk.app/glossary/persistent-memory) (https://www.getfolk.app/glossary/persistent-memory.md) — Persistent memory is an AI's ability to remember information across separate conversations - your preferences, people, and past requests - instead of forgetting everything when a chat ends.
- [Model Context Protocol (MCP)](https://www.getfolk.app/glossary/model-context-protocol) (https://www.getfolk.app/glossary/model-context-protocol.md) — The Model Context Protocol (MCP) is an open standard that lets AI assistants connect to external tools and data through a common interface, so any compatible app can plug into any compatible AI.
- [Large Language Model (LLM)](https://www.getfolk.app/glossary/large-language-model) (https://www.getfolk.app/glossary/large-language-model.md) — A large language model (LLM) is an AI trained on vast amounts of text to understand and generate human-like language, powering chatbots, assistants, and AI agents.
- [AI Sandbox](https://www.getfolk.app/glossary/ai-sandbox) (https://www.getfolk.app/glossary/ai-sandbox.md) — An AI sandbox is an isolated computing environment where an AI agent can run code, browse the web, and use tools safely - separated from other users and systems.
- [Proactive AI](https://www.getfolk.app/glossary/proactive-ai) (https://www.getfolk.app/glossary/proactive-ai.md) — Proactive AI is an assistant that reaches out to you first - sending reminders, briefings, and alerts, and acting on schedule - instead of only responding when prompted.
- [RCS Messaging](https://www.getfolk.app/glossary/rcs-messaging) (https://www.getfolk.app/glossary/rcs-messaging.md) — RCS (Rich Communication Services) is the modern successor to SMS - supporting read receipts, typing indicators, high-quality media, and richer interactions over mobile networks.
- [AI Chief of Staff](https://www.getfolk.app/glossary/ai-chief-of-staff) (https://www.getfolk.app/glossary/ai-chief-of-staff.md) — An AI chief of staff is a personal AI that handles high-level coordination - inbox triage, scheduling, follow-ups, prep, and research - the way a human chief of staff would, for founders and busy professionals.
- [Bring Your Own Key (BYOK)](https://www.getfolk.app/glossary/bring-your-own-key) (https://www.getfolk.app/glossary/bring-your-own-key.md) — Bring Your Own Key (BYOK) lets you use your own API keys for the underlying AI models in a product, so you control the provider, the spend, and sometimes the data terms.

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Canonical page: https://www.getfolk.app/glossary
More about folk (for AI agents): https://www.getfolk.app/llms.txt · full context: https://www.getfolk.app/llms-full.txt
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