Agents Overview

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What is an Agent?

An agent is an autonomous AI entity powered by a large language model. When you send a message to an agent, it:

1. Reasons about the task using its behavior prompt and conversation history
2. Calls tools if needed (built-in functions, integrations, or other agents)
3. Iterates until it has a final answer or reaches the step limit
4. Returns a final output with full execution trace

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Agent lifecycle

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Agent statuses

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Run statuses

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Quality assurance

When enabled, a QualityChecker system agent evaluates each run’s output:

• Quality Score — 0.0 to 1.0 rating
• Verdict — pass, warn, or fail
• Reasoning — explanation of the assessment
• Issues — specific problems found (if any)

Runs that fail quality checks can be automatically retried.