AI dictionary · 145 definitions

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decode AI language.

Plain-English definitions for agents, tools, RAG, evals, safety, and the vocabulary that shows up in AI product work.

Showing 24 of 145

AI Agent

Also called Agent, LLM agent

Agents & AutonomyEstablished

A system that uses a model, tools, context, and control logic to pursue a goal and take actions.

Context for AI Agent

Agentic AI

Also called Agentic system, Compound AI system

Agents & AutonomyEstablished

AI that plans, uses tools, receives feedback from the environment, and can act with partial autonomy.

Context for Agentic AI

Agent Harness

Also called Harness, Agent runtime

Agents & AutonomyRising

The runtime around a model that supplies tools, state, prompts, permissions, logs, and execution loops.

Context for Agent Harness

Harness Engineering

Also called Agent harness engineering, Harness design

Agents & AutonomyRising

The practice of designing, testing, and simplifying the runtime around an agent so it can work reliably across tools, sessions, and tasks.

Context for Harness Engineering

Brain-Hands Decoupling

Also called Harness-compute separation, Brain/hands split, Model-sandbox separation

Agents & AutonomyEmerging

Separating the model-and-harness layer that decides what to do from the sandbox, tools, or systems that perform actions.

Context for Brain-Hands Decoupling

Agent Loop

Also called Run loop, Think-act-observe loop

Agents & AutonomyEstablished

The repeated cycle where an agent reasons, calls a tool, observes the result, and decides the next step.

Context for Agent Loop

Long-Horizon Task

Also called Long-running task, Extended task

Agents & AutonomyRising

A goal that requires many dependent steps, decisions, tool calls, and course corrections before completion.

Context for Long-Horizon Task

Long-Running Agent

Also called Persistent agent, Background agent

Agents & AutonomyEmerging

An agent designed to keep making progress over many sessions, context windows, or wall-clock hours.

Context for Long-Running Agent

Background Mode

Also called Async response, Background run

Agents & AutonomyRising

An execution mode where a long-running AI task continues asynchronously while the application polls for status or results.

Context for Background Mode

Agent Swarm

Also called Swarm, Agent fleet

Agents & AutonomyEmerging

A group of agents that coordinate or compete to solve pieces of a larger goal.

Context for Agent Swarm

Goal Mode

Also called /goal, Goal command, Persistent goal

Agents & AutonomyWatch

An emerging coding-agent workflow where a persistent objective stays active across progress checks, continuation, pause, and resume.

Context for Goal Mode

Durable Execution

Also called Resumable workflow, Persistent execution

Agents & AutonomyRising

Saving workflow progress so an agent or graph can pause, fail, or wait for a person and later resume without redoing completed steps.

Context for Durable Execution

Interrupt

Also called Pause point, Mid-task approval

Agents & AutonomyRising

A deliberate pause inside an agent workflow that waits for external input before continuing.

Context for Interrupt

Multi-Agent System

Also called MAS, Agent collective

Agents & AutonomyRising

An architecture where multiple specialized agents collaborate through messages, tools, or a shared controller.

Context for Multi-Agent System

Supervisor Agent

Also called Manager agent, Orchestrator agent

Agents & AutonomyRising

A coordinating agent that decomposes work, invokes specialists, and combines their outputs.

Context for Supervisor Agent

Sub-Agent

Also called Worker agent, Specialist agent

Agents & AutonomyRising

A focused agent invoked by another agent or workflow to handle a narrower task.

Context for Sub-Agent

Agent-as-Tool

Also called Agent tool, Callable agent

Agents & AutonomyEmerging

A pattern where one agent exposes a specialist agent as a callable tool instead of handing over the whole conversation.

Context for Agent-as-Tool

Agent Team

Also called Teammates, Peer agents

Agents & AutonomyEmerging

Multiple agent sessions coordinated around shared work, often with peer messaging, task assignment, or separate context.

Context for Agent Team

Handoff

Also called Transfer, Agent transfer

Agents & AutonomyRising

A controlled transfer of a task or conversation from one agent to another.

Context for Handoff

Orchestrator-Workers

Also called Manager-worker workflow, Delegation workflow

Agents & AutonomyEstablished

A pattern where a central model dynamically breaks work into subtasks and delegates them to worker models.

Context for Orchestrator-Workers

Evaluator-Optimizer

Also called Critic loop, Review-and-revise loop

Agents & AutonomyEstablished

A workflow where one model produces work and another model evaluates it, creating an improvement loop.

Context for Evaluator-Optimizer

Human-in-the-Loop

Also called HITL, Human approval

Agents & AutonomyEstablished

A design where a person reviews, approves, or edits model output before a consequential action happens.

Context for Human-in-the-Loop

Human-on-the-Loop

Also called Oversight, Supervisory control

Agents & AutonomyRising

A design where humans monitor autonomous systems and intervene when risk, uncertainty, or policy requires it.

Context for Human-on-the-Loop

Autonomy Level

Also called Autonomy tier, Agency level

Agents & AutonomyEmerging

A way to describe how much freedom an agent has to decide, act, spend money, or change systems.

Context for Autonomy Level