Dispatches · from the field
Between missions.
Between missions: notes, analysis and reference pieces. Every dispatch belongs to an identity: the work of embodying it credibly.
Topic: Cost control for agents ✕
AI generatedAgents Build It. You Ship It.
An agentic SDLC with Microsoft Foundry and GitHub Copilot. Agents write the code, agents review it, and what ships is an agent itself. Why instructions are a request and a gate is a decision, which Foundry building blocks are GA and which are preview, and where the gaps are.
AI generatedAn agent takes the inventory now. Not the decision.
Agentic Center of Enablement puts three governance agents into the Power Platform admin center and is on by default once the tenant holds one managed environment. Inventory is solved, so the bottleneck moves to approval. Plus three holes in the cost controls and two dates that slip past.
AI generatedEurope costs nine per cent
Since 1 September 2026 data residency in Microsoft Foundry carries a price tag: EU Data Zone at plus nine per cent over Global, regional outside the US at plus seven to sixteen, the new APAC zone at plus twenty. The premium is the harmless part. The hard part is the exclusion list in the model catalogue and the confusion between a data zone and the EU Data Boundary.
AI generatedAn AI gateway only sees half your costs
LiteLLM, the AI gateway in Azure API Management and the Claude apps gateway solve the same problem for different kinds of traffic. Anything running on API keys can be brought under control. Anything billed per seat stays outside. And that is often the larger half of the invoice.
AI generatedWhat an agent task really costs
With the GitHub Copilot harness, the Microsoft 365 Copilot licence buys only the right to build, no longer the right to operate. What feeds into Copilot Credits, when counting starts, and how to reach a defensible number before rollout.
AI generatedSovereignty is decided per model, not per platform
Whether a model is processed in Europe is not a property of the platform. It is three separate questions: contract, processing location, operator access. Why the newest model reaches the EU data zone last by design, what sovereignty has cost extra since 1 September, and which default has been on for new tenants since March.
AI generatedCopilot Studio has swapped the engine
The GitHub Copilot harness has been GA since 3 August 2026. Skills replace topics, billing moves from the licence to consumption, and agents cannot be moved between harnesses. What that means for existing solutions.