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Month: July 2026

GitHub Copilot Dataverse: MCP Limits, YAML, and PAC CLI

GitHub Copilot Dataverse: MCP Limits, YAML, and PAC CLI

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My spec was done. The plan too. Time to build the Dataverse foundation: the piece everything in my Expense Management system would run on. I connected the Dataverse MCP server in VS Code, opened my prepared spec, and ran /speckit.implement in GitHub Copilot. The GitHub 🌱 SpecKit workflow with Copilot to implement my Dataverse solution felt ready. I expected it to just work. It didn’t. The MCP hit its limits fast. Cryptic errors, wrong solution placement, no model-driven app support….

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Spec-Driven Development: Project Decomposition
Spec-Driven Development: Project Decomposition

Spec-Driven Development: Project Decomposition

The Dataverse-first restart was done. However, my spec looked sharper. The data model had a center of gravity, and that part actually worked. Solving one problem, however, revealed another. One spec was still covering six very different concerns: different timelines, different risk profiles, and different people who would eventually build and own each piece. Nothing defined where one concern ended and another began. That’s not a spec problem. Instead, it’s a structure problem. In my previous post, I said the…

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