docs(architect): weekly KB update — 106 files refreshed (2026-04)

Updates across all 5 skills: ms-ai-advisor, ms-ai-engineering,
ms-ai-governance, ms-ai-security, ms-ai-infrastructure.

Key changes:
- Language Services (Custom Text Classification, Text Analytics, QnA):
  retirement warning 2029-03-31, migration guides to Foundry/GPT-4o
- Agentic Retrieval: 50M free reasoning tokens/month (Public Preview)
- Computer Use: Claude Sonnet 4.5 (preview) + OpenAI CUA models
- Agent Registry: Risks column (M365 E7), user-shared/org-published types
- Declarative agents: schema v1.5 → v1.6, Store validation requirements
- MLflow 3: 13 built-in LLM judges, production monitoring, Genie Code
- AG-UI HITL: ApprovalRequiredAIFunction (C#) + @tool(approval_mode) (Python)
- Entra ID Ignite 2025: Agent ID Admin/Developer RBAC roles, Conditional Access
- Security Copilot: 400 SCU/month per 1000 M365 E5 licenses, auto-provisioned
- Fast Transcription API: phrase lists, 14-language multi-lingual transcription
- Azure Monitor Workbooks: Bicep support, RBAC specifics
- Power Platform Copilot: data residency (Norway/Europe → EU DB, Bing → USA)
- RAG security-rbac: 4-approach table (GA + 3 preview access control methods)
- IaC MLOps: Well-Architected OE:05 principles, Bicep/Terraform patterns
- Translator: image file batch translation Preview (JPEG/PNG/BMP/WebP)

All 106 files: Last updated 2026-04 | Verified: MCP 2026-04

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

skills/ms-ai-engineering/references/agent-orchestration/multi-agent-orchestration-patterns.md

@@ -1,6 +1,6 @@
 # Multi-Agent Orchestration Patterns and Topologies
 
-**Last updated:** 2026-02
+**Last updated:** 2026-04 | Verified: MCP 2026-04
 **Status:** GA
 **Category:** Agent Orchestration & Automation
 
@@ -429,11 +429,24 @@ await Task.WhenAll(taskA, taskB); // Checkpoint ensures no replay
 - Anbefales for inter-platform orchestration
 
 **Multi-Agent Pattern Recommendations (Microsoft Copilot Studio):**
-1. Prefer platform-native orchestration for internal flows
-2. Use MCP for tool/data access (M365 services)
-3. Use A2A for cross-platform messaging
-4. Integrate mature agents via MCP or A2A
-5. Enforce policy/auditing via Agent 365 control plane
+1. Prefer platform-native orchestration for internal flows with subagents
+2. Use MCP for tool and data access (M365 services) — enterprise-grade security, authentication, auditing
+3. Use A2A for cross-platform agent-to-agent messaging — design for capability discovery and task contracts
+4. Integrate mature or abstracted agents via MCP or A2A for reuse and end-to-end traceability
+5. Enforce policy and auditing at control-plane layer with Agent 365
+6. Use least-privileged scope when calling MCP-hosted tools
+7. Design for parallelism, limit inter-agent context to strictly necessary, use short-term memory
+8. Include users in workflow — require human approvals for high-impact cross-agent actions
+
+**MCP vs A2A — nar bruke hva (oppdatert fra Copilot Studio multi-agent-patterns):**
+
+| Kapabilitet | MCP | A2A |
+|-------------|-----|-----|
+| Multimodalitet | Krever at MCP host stoetter det | Annonserer stoettede medietyper |
+| Multi-turn interaksjoner | Valgfri elicitation. Kontekst hos host | contextId haandterer kontekst paa tvers av agenter |
+| Orkestrering | Host orkestrerer hvilke tools som kalles | Invokert agent bruker sin egen chain-of-thought |
+| Forhandling | Krever klientoppdatering | Dynamisk forhandling, robust mot serviceoppdateringer |
+| Beste for | Full kontroll over resonnering, kontrollerte scenarios | Opake agenter, cross-org, ekstern agent |
 
 ### Semantic Kernel + Agent Framework
 
@@ -638,7 +651,7 @@ scope.RecordOutputMessages(new[] { output });
 
 1. **AI agent orchestration patterns** (Azure Architecture Center)
    https://learn.microsoft.com/en-us/azure/architecture/ai-ml/guide/ai-agent-design-patterns
-   *Confidence: Verified* — Definitive guide til alle 5 patterns
+   *Confidence: Verified* — Definitive guide til alle 5 patterns, spektrum av kompleksitet (direct model call → single agent → multi-agent), oppdatert 2026-04
 
 2. **Microsoft Agent Framework Workflows Orchestrations**
    https://learn.microsoft.com/en-us/agent-framework/user-guide/workflows/orchestrations/overview
@@ -658,7 +671,7 @@ scope.RecordOutputMessages(new[] { output });
 
 6. **Multi-agent patterns (Copilot Studio)**
    https://learn.microsoft.com/en-us/microsoft-copilot-studio/guidance/architecture/multi-agent-patterns
-   *Confidence: Verified* — A2A protocol, MCP integration
+   *Confidence: Verified* — A2A protocol, MCP integration, capability matrise, hybrid workflow diagram, oppdatert 2026-04
 
 7. **Build agent platforms on Azure** (Microsoft for Startups)
    https://learn.microsoft.com/en-us/microsoft-for-startups/build/build-agent