docs(architect): weekly KB update — 66 files refreshed (2026-04)

Updated 66 stale knowledge base reference files (10 critical, 56 high)
across all 5 skills using Microsoft Learn MCP research.

Key factual updates:
- Groundedness Detection API: `correction` → `mitigating` param,
  `correctedText` → `correctionText` (breaking change)
- Copilot Studio: GPT-4.1 mini now default (was GPT-4o mini);
  Claude Sonnet 4.5 + Opus 4.5 added (experimental, 200K ctx)
- Agentic Retrieval: still public preview; 50M free tokens/month
- Azure security baselines: "Cognitive Services" → "Foundry Tools"
- Databricks: Delta Live Tables → Lakeflow Spark Declarative Pipelines
- MLflow 3 GenAI: new Feedback/Expectation data model
- Token tracking doc: "Azure OpenAI in Foundry Models through a gateway"
- Agent Registry: Risks column (M365 E7), Graph API (preview)
- Copilot DLP: new Entra AI Admin + Purview Data Security AI Admin roles
- ISO/IEC 42001: scope expanded to M365 Copilot, Foundry, Security Copilot
- Zero Trust: CAE now via Conditional Access, Strict Location Enforcement
- Purview: new Fabric Copilots/agents governance section
- AG-UI HITL: ApprovalRequiredAIFunction (C#), @tool approval_mode (Python)

All files: Last updated → 2026-04, *(Verified MCP 2026-04)* markers added.
Build registry: 1341 URLs from 387 files (+2 new URLs).

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

skills/ms-ai-advisor/references/copilot-extensibility/copilot-prompt-engineering-governance.md

@@ -1,6 +1,6 @@
 # Prompt Engineering and Governance for Copilot
 
-**Last updated:** 2026-02
+**Last updated:** 2026-04
 **Status:** GA
 **Category:** Copilot Extensibility & Integration
 
@@ -167,10 +167,17 @@ For komplekse oppgaver: gi 2-3 eksempler som dekker edge cases
 - Agent har tydelig single purpose (e.g., "IT helpdesk agent")
 - Samme tone/stil ønskes i alle dialoger
 
-### Mønster 2: Topic-level prompts (Copilot Studio)
+### Mønster 2: Topic-level prompts (Copilot Studio) *(Verified MCP 2026-04)*
 
 **Bruksområde:** Spesialisert logikk for én spesifikk dialog-flow
 
+**Oppdatert implementasjon (nlu-prompt-node):**
+- Prompts kan legges til på agent-nivå (Tools → New tool → Prompt) eller topic-nivå (Add node → Add a tool → New prompt)
+- Prompts kan også legges til som noder i agent flows (Insert new action → AI capabilities → Run a prompt)
+- Prompt-editoren støtter: manuell instruksjonsskrift, Copilot-genererte instruksjoner, og preset-maler fra prompt library
+- Konfigurerbart: modell (inkl. Azure AI Foundry-modeller), temperature, knowledge retrieval, code interpreter, reasoning
+- Agenter konfigurert for anonym bruk (no auth) kan ikke bruke Dataverse som knowledge source i prompts
+
 **Implementasjon:**
 1. Åpne topic → **Add node** → **Add a tool** → **New prompt**
 2. Definer prompt med context fra topic variables
@@ -297,13 +304,20 @@ START: Skal vi tillate Copilot i virksomheten?
 - **Dataverse knowledge integration:** Prompt kan grunde i Dataverse tables (krever autentisering)
 - **Prompt library:** 40+ pre-built templates for vanlige scenarios (document extraction, text transformation, content generation)
 
-**Integrasjonsmønster:**
+**Integrasjonsmønster *(Verified MCP 2026-04)*:**
 1. Opprett prompt i Copilot Studio (Tools → New tool → Prompt)
 2. Konfigurer input variables (text, image, document)
 3. Legg til knowledge source (Dataverse table, SharePoint site)
 4. Test med sample data
 5. Bruk i topic (Add node → Add a tool → [din prompt])
 
+**Prompt library (oppdatert):**
+- Tilgjengelig via Copilot Studio (Tools → New tool → Prompt → Prompt library) eller AI Hub i Power Apps/Power Automate
+- Maler dekker kategorier: Common, Customer service, Legal, Marketing, Communications, IT, Learning, HR, Finance, Architecture, Sales
+- Oppgavetyper: Analyze, Classify, Create, Extract, Summarize
+- Maler kan redigeres og lagres med nytt navn; støtter Text og JSON output-format
+- Valg av GPT-modell og temperature per mal
+
 ### Microsoft 365 Copilot + Declarative Agents
 
 Declarative agents bruker **app manifest** (JSON) til å definere instructions, knowledge sources, og actions (API plugins). Dette integrerer med:
@@ -557,15 +571,15 @@ For advanced scenarios kan du deploye custom model fra Azure AI Foundry og bruke
 
 **Prompt engineering:**
 - [Write effective instructions for declarative agents](https://learn.microsoft.com/en-us/microsoft-365-copilot/extensibility/declarative-agent-instructions) – **Verified** (detailed best practices, example instructions)
-- [Use prompts in Copilot Studio](https://learn.microsoft.com/en-us/microsoft-copilot-studio/nlu-prompt-node) – **Verified** (agent-level vs topic-level prompts)
+- [Use prompts in Copilot Studio](https://learn.microsoft.com/en-us/microsoft-copilot-studio/nlu-prompt-node) – **Verified** (agent-level vs topic-level prompts) *(Verified MCP 2026-04)*
 - [Write effective prompts for Azure Copilot](https://learn.microsoft.com/en-us/azure/copilot/write-effective-prompts) – **Verified** (Azure-specific prompt guidance)
-- [Prompt library in Copilot Studio](https://learn.microsoft.com/en-us/microsoft-copilot-studio/prompt-library) – **Verified** (40+ templates, job types)
+- [Prompt library in Copilot Studio](https://learn.microsoft.com/en-us/microsoft-copilot-studio/prompt-library) – **Verified** (40+ templates, job types) *(Verified MCP 2026-04)*
 - [Best practices for declarative agents](https://learn.microsoft.com/en-us/microsoft-365-copilot/extensibility/declarative-agent-best-practices) – **Verified** (component-level guidance)
 
 **Governance:**
 - [Copilot Control System security and governance](https://learn.microsoft.com/en-us/copilot/microsoft-365/copilot-control-system/security-governance) – **Verified** (foundational vs optimized controls)
 - [Copilot governance in Power Platform](https://learn.microsoft.com/en-us/power-platform/release-plan/2025wave1/power-platform-governance-administration/copilot-governance) – **Verified** (admin capabilities, compliance)
-- [Data loss prevention for Copilot Studio](https://learn.microsoft.com/en-us/microsoft-copilot-studio/admin-data-loss-prevention) – **Verified** (DLP policies, tenant-level controls)
+- [Data loss prevention for Copilot Studio](https://learn.microsoft.com/en-us/microsoft-copilot-studio/admin-data-loss-prevention) – **Verified** (DLP policies, tenant-level controls) *(Verified MCP 2026-04)*
 - [Managed scheduled prompts for M365 Copilot](https://learn.microsoft.com/en-us/copilot/microsoft-365/scheduled-prompts) – **Verified** (admin management)
 
 **Responsible AI:**