Forward Deployed

Agentic Systems: sections and modules

T3.1

What an agent is: the tool-calling loop

Build and explain the agent loop.

About 3 h: 30 min reading + 2 h 30 min practice · 4 lessons

Scope: Single loop mechanics
Prerequisites: Retrieval: hybrid, rerank, query transformation

Lessons

4 lessons

1
What an Agent Is
9 min
2
The Tool-Calling Loop From Scratch
7 min
3
Loop Guards and Termination
7 min
4
Practise Agent Loop Interview Questions
7 min

Practise and Check

Deliverable: Tool loop from scratch (companion code)
Assessment: Checkpoint
Interview probe: Workflow or agent?
Common mistakes: Calling a chain an agent

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