Tool Calling
Tool calling is when an AI model decides to invoke an external function or API (a tool) to fetch data or perform an action during a task.
Category
AI Agent Building Blocks
These building blocks describe how an agent plans, uses tools, checks results, and stays within constraints.
How to recognize this theme
Components often mentioned when people build tool-using agents.
In a daily board, this category groups terms by their shared role. Look for four cards that describe the same mechanism, risk area, or workflow rather than four words that merely sound similar.
Educational context
These entries are vocabulary notes for learning. They are not project endorsements, token recommendations, exchange rankings, or trading signals.
Planner
A planner breaks a goal into an ordered set of steps, sometimes delegating subtasks to specialized tools or modules.
Retrieval
Retrieval is the process of selecting relevant documents or facts (often from a vector database or search index) to provide context before generation.
Guardrails
Guardrails are constraints and checks that limit what an agent can do, such as tool permissions, content filters, or required validation steps.