Module 7 · AI Agents

Planning and Reasoning in AI Agents

Planning decomposes a goal into manageable actions and revises the path when observations change.

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This reading lesson is complete and can be studied independently. The video will be added here when it is published.

Core idea

Planning and Reasoning in AI Agents

Planning decomposes a goal into manageable actions and revises the path when observations change.

Design principle: Define the outcome, use authorized information, constrain the system, and verify real results before relying on them.

Visual workflow

How the parts connect

01Interpret
02Decompose
03Act
04Observe
05Replan
06Verify

Every boundary is an opportunity to validate inputs, permissions, quality, and failure handling.

Worked example

Apply the concept

A research agent decomposes a comparison into evidence gathering, verification, synthesis, and citation checks, replanning when a source is unavailable.
RequirementState the user outcome and success measure.
InformationUse representative, authorized, high-quality data.
ControlAdd permissions, validation, review, and recovery.
EvidenceMeasure quality, safety, latency, cost, and value.

Production and responsibility checklist

01

Quality

Correctness, relevance, coverage, and consistency.

02

Security

Identity, data, tools, networks, and logs.

03

Fairness

Impacted groups and meaningful failure differences.

04

Operations

Latency, errors, drift, quotas, and availability.

05

Human control

Review, escalation, override, and accountability.

06

Economics

Usage drivers and measurable business value.

Knowledge check

What to remember

  • Interpret objective
  • Break into steps
  • Execute and observe
  • Replan when needed
  • Identify the requirement, constraint, risk, and verification method before choosing a technology.

Key takeaways

  • Interpret objective
  • Break into steps
  • Execute and observe
  • Replan when needed

Check your understanding

  1. Can you explain this concept in two sentences without using jargon?
  2. Can you identify the input, process, output, and validation step in the example?
  3. Can you name one suitable use case and one case where another approach is better?
  4. 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.