Add tools to a topic — AB-620 Study Guide

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Included in this chapter:

Tool mechanism	What it wraps	Reach for it when	Topic-side caution
Connector	A Power Platform connector operation, prebuilt or custom	One typed read or write against a system that already has a connector	Needs a connection; premium connectors need a plan that includes them
Agent flow	A published Copilot Studio agent flow with one or more actions	The work is multistep, or the same logic is called from several topics	Only appears in the panel once it meets the flow-side eligibility criteria
Prompt	A single-turn model-based prompt that can reference knowledge you provide	The step is a language or analysis task rather than a system call	Exists at agent level or topic level, so confirm which scope a scenario intends
REST API	Selected endpoints and methods from an OpenAPI specification	The system publishes an API and no suitable connector exists	Preview; add only the operations the agent should be able to perform
Model Context Protocol	An MCP server's published tools and resources	The far side already speaks MCP and its tool set may grow	Its configuration page shows Tools and Resources instead of Inputs and Completion
Computer use	Interaction with a graphical interface, on websites and desktop apps	The system has no API, connector, or protocol endpoint at all	Slowest and most brittle path; treat it as the last resort

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