Module 7 · AI Agents
Tools and Function Calling for AI Agents
Tools let agents interact with controlled external capabilities such as search, databases, calendars, or business APIs.
This reading lesson is complete and can be studied independently. The video will be added here when it is published.
Core idea
Tools and Function Calling for AI Agents
Tools let agents interact with controlled external capabilities such as search, databases, calendars, or business APIs.
Visual workflow
How the parts connect
Every boundary is an opportunity to validate inputs, permissions, quality, and failure handling.
Worked example
Apply the concept
Production and responsibility checklist
Quality
Correctness, relevance, coverage, and consistency.
Security
Identity, data, tools, networks, and logs.
Fairness
Impacted groups and meaningful failure differences.
Operations
Latency, errors, drift, quotas, and availability.
Human control
Review, escalation, override, and accountability.
Economics
Usage drivers and measurable business value.
Knowledge check
What to remember
- Describe allowed tool
- Select tool
- Validate arguments
- Return result to agent
- Identify the requirement, constraint, risk, and verification method before choosing a technology.
Key takeaways
- Describe allowed tool
- Select tool
- Validate arguments
- Return result to agent
Check your understanding
- Can you explain this concept in two sentences without using jargon?
- Can you identify the input, process, output, and validation step in the example?
- Can you name one suitable use case and one case where another approach is better?
- Which risk or limitation should a responsible implementation address?
Research references
Public sources and further reading
This lesson is original educational writing informed by the public references below. Use the sources to explore definitions, technical details, and current AWS exam objectives.