A way for an Agent to find and choose tools it can use.
Agent Tool Discovery is like opening a mystery toolbox. First, find the mop, not the leaf blower.
You see it in multi-tool Agents and company workflows. It chooses the right API, so the task has a chance.
Agent
Tool discovery helps an Agent find its tools before it acts.
Function-calling
Tool discovery usually happens before Function-calling starts.
MCP
MCP often shows the Agent a list of tools and notes.
Prompt injection
Prompt injection can trick it into choosing the wrong tool.