Module 14: Agent Builder
Lesson 14.1: What an Agent Is in Plain English
Lesson Promise
Understand Agent Builder agents as focused Copilot experiences, not magic assistants.
Real-World Scenario
A department head asks for an agent that can answer onboarding questions, summarize team docs, and guide new hires without exposing private HR material.
Core Concept
An Agent Builder agent is a purpose-built Copilot experience that uses instructions and selected knowledge so users can get more consistent help for a recurring job.
The agent does not replace judgment. It still depends on accessible sources, the quality of instructions, tenant controls, and human review.
The simplest useful mental model is: job plus audience plus knowledge plus rules plus testing.
Step-By-Step Workflow
- Name the recurring job the agent should help with.
- Identify the audience and what they are allowed to know.
- List approved knowledge sources and explicitly exclude sensitive sources.
- Write behavior rules for tone, answer format, uncertainty, and escalation.
- Test with common, vague, wrong, and sensitive questions.
- Decide whether the agent is safe to share or needs Copilot Studio governance.
Prompt Lab
Bad Prompt
Create an onboarding agent.
Better Prompt
Create an internal onboarding agent for new sales hires using only the approved onboarding guide and sales process FAQ.
Expert Prompt
Design an Agent Builder agent for new sales hires. Include agent purpose, audience, allowed knowledge sources, excluded sources, answer format, tone, refusal rules, escalation path, test questions, owner, update schedule, and launch checklist.
Hands-On Exercise
Choose one recurring knowledge task in your organization and define the agent job in one sentence.
Deliverable
A one-page agent definition with job, audience, approved sources, excluded sources, and owner.
Agent Builder Review Checklist
Common Mistakes
- Building a broad general helper instead of a focused role-based agent.
- Adding messy or outdated files and expecting the agent to infer what matters.
- Skipping refusal instructions for policy, legal, financial, HR, or customer-impacting questions.
- Testing only the happy path and missing vague, hostile, or sensitive prompts.
- Sharing an agent before ownership, feedback, and update routines are clear.
Quiz / Checkpoint
What are the five core ingredients of a useful Agent Builder agent?
Job, audience, knowledge, instructions, and testing.
Official Sources To Verify
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