Your next step
From a request to a tool result
APIs, tools, schemas, proposals, results and failure classes.
Start learningWhat you’ll learn
An API is a software interface
Recognize a programmatic request to another system.
About 4 minutes · Open activity
A tool makes an action available to the agent
Identify a callable capability exposed by a host.
About 4 minutes · Open activity
A schema describes acceptable arguments
Read required fields in a small tool contract.
About 3 minutes · Open activity
A tool call is a proposal to execute
Distinguish generated arguments from application execution.
About 4 minutes · Open activity
Results return to the next step
Follow a call-result-response loop.
About 4 minutes · Open activity
Structured output is a format promise
Separate schema validity from truthful content.
About 4 minutes · Open activity
Different failures need different repairs
Classify invalid input, denied access and temporary outage.
About 4 minutes · Open activity
Complete the tool loop
Arrange a tool definition, arguments, permission decision, returned error and corrected next action into a coherent trace.
About 5 minutes · Open activity