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AI Engineering · 300-level

Agent Foundations

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AIE-3013 creditscorebadge: agent-iprereqs: AIE-204, AIE-201
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Earn the agent-i credential

What's inside

Sections & lessons

01

Planner-executor loop

  • The core loop: plan, act, observe, re-planconcept45 min
02

Stop conditions & tool-call budgets

  • Designing the ceiling that keeps an agent from burning spendconcept60 min
03

Reading a trace

  • Plan → tool call → observation → next plan, as a scrubbable timelineconcept60 min
04

Trace Detective lab

  • Finding the exact step where the agent brokeconcept90 min
05

Designing an agent persona

  • Persona, tool allowlist, and budget as one definitionconcept45 min
06

Adversarial loop-inducing tasks

  • Five tasks built to make a weak stop condition fail visiblyconcept60 min
07

Human-in-the-loop approval gates

  • Where an agent must stop and askconcept45 min
08

Reasoning inside agent steps

  • Editing one reasoning step and watching the plan forkconcept60 min
09

Quiz: agent-loop judgment

  • Checkpoint on stop conditions and budget designconcept30 min
010

Budget-ticker lab

  • Catching a runaway agent before the step budget hits zeroconcept90 min
011

Build-your-own-agent lab

  • Defining and running a first end-to-end agentconcept90 min
012

Lab + eval-gate: agent + adversarial suite

  • Pass all five loop-inducing tasks (Agent I badge)concept120 min
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Learn it from the inside

This module's playgrounds

AI Engineering

Next in this path

Where this specialization goes from here — in (level, code) order.

  • AIE-302

    Multi-Agent Orchestration & HITL

    2 creditselectivebadge: agent-ii
    Start
  • AIE-303

    MCP & Tool Integration

    2 creditselectivebadge: integrator
    Start
  • AIE-304

    AI Security & Red-Teaming

    3 creditselectivebadge: red-teamer
    Start
  • AIE-401

    Evals & Quality Systems

    3 creditscorebadge: evaluator
    Start
  • AIE-402

    LLMOps: Cost, Latency, Observability

    3 creditselectivebadge: operator
    Start
  • AIE-403

    AI System Design

    3 creditselectivebadge: architect
    Start
  • AIE-490

    Capstone: Ship & Evaluate an AI System

    4 creditscapstonebadge: ai-engineer
    Start
Vocabulary

Key concepts in this course

Planner-Executor Loop ReAct Pattern AI Agent Human-in-the-Loop (HITL) Tool Use

Compare related approaches

AI Agents vs Workflows
Optional · watch & try

Go deeper, elsewhere

Hand-picked public explainers and open tools — always optional, never required, never graded.

AI Agents, Clearly ExplainedClean mental model of the plan-act-observe agent loop AI agents explained: Build your first agent in 8 minutesHands-on build of a minimal working agent · ~8 minAI Agents Explained - How They Actually WorkBreaks down planner/executor and tool-call loops AgentSwarms — Learn Agentic AI Hands-OnFree interactive playground for building and observing agent behavior

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