M365 Show Podcast

Stop Building Dumb Copilots: Why Context Engineering Is Your Only Fix

In this episode, we break down the real reason most Copilots fail inside the Power Platform: context debt. Your model isn’t hallucinating because it’s dumb—it’s guessing because you starved it. We walk through a complete, repeatable context engineering blueprint for Copilot Studio and Power Automate, designed to eliminate hallucinations, reduce cross-tenant drift, and dramatically cut latency and cost. You’ll learn how to build the four-layer spine every enterprise Copilot needs: System Context, Retrieval, Tools, and Policies—plus the missing governance layer most teams overlook. What You’ll Learn 1. Why Your Copilot Fails (Context Debt)

  • How missing system rules and vague identity cause inconsistent answers
  • Why ungrounded Dataverse data leads to hallucinated fields
  • The hidden impact of undefined tools and cross-environment drift
  • How governance gaps create policy violations and compliance risks
2. Layer 1 — System Context That Doesn’t Drift
  • The System Message pattern used in real enterprise deployments
  • Identity, scope, refusal policy, schema awareness, and logging rules
  • How to parameterize system context across Dev/UAT/Prod
  • The “six-line” system message formula that stops ambiguity cold
3. Layer 2 — Retrieval That Grounds to Dataverse
  • How to build a Dataverse-first schema index
  • Why PDFs and document libraries aren’t grounding—and how to fix them
  • Chunking, security trimming, hybrid search, and caching for speed
  • The schema grounding checklist every agent needs
4. Layer 3 — Tooling + Policy Enforcement
  • Turning Power Automate flows into safe, least-privilege “agent verbs”
  • How to encode preconditions, sensitivity flags, and refusal logic
  • Using DLP, Conditional Access, Purview, and MIP labels to prevent drift
  • Why you need an admin kill-switch (and how to add one)
5. End-to-End Build (With Before/After Metrics)
  • Step-by-step Copilot Studio + Power Automate build
  • Schema indexing, tool catalog, prompt wrappers, and environment bindings
  • Before/after metrics: latency, token usage, hallucinations, policy adherence
  • Real example: correcting an invalid “fast-track to approved” request
Key Takeaways
  • Models don’t provide truth—they only predict text. You provide the truth.
  • The four layers—System, Retrieval, Tools, Policies—eliminate drift and hallucination.
  • Dataverse schema is the spine; documents are secondary.
  • Governance isn’t optional: DLP, Conditional Access, and sensitivity labels define reality.
  • A fully engineered context cuts latency, costs, hallucinations, and audit risk.




Become a supporter of this podcast: https://www.spreaker.com/podcast/m365-show-podcast--6704921/support.

Follow us on:
LInkedIn
Substack