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Stop Writing Vague AI Prompts: The Developer’s Playbook for Mastering agents.md in 2026

agents.md best practices for GitHub Copilot specialist agents

Your AI agent just modified the wrong file. Again. Before you blame the model — when did you last check what instructions you actually gave it?
Most developers hand a powerful coding agent a vague persona and wonder why results are inconsistent. GitHub's analysis of 2,500+ repositories reveals the uncomfortable truth: the gap between agents that work and agents that guess comes down to one file you're probably not writing correctly.
In this guide: the six pillars of a high-performing agents.md, a production-ready Dataverse plugin agent template, and the maintenance habit that keeps your AI sharp as your codebase grows. Your agent is only as good as the manual you write for it.

GitHub Copilot Agentic Memory: What It Is, How It Works?

GitHub Copilot Agentic Memory vs Stateless AI

GitHub Copilot just launched a persistent, repository-scoped agentic memory system in public preview. Instead of starting from scratch every session, Copilot now learns your codebase conventions over time and shares that knowledge across the coding agent, code review, and CLI. In this article, we explore how it works under the hood — and walk through three concrete Power Platform scenarios (PCF control development, Power Automate solution management, and Dataverse architecture patterns) where this changes the daily developer experience significantly.

Power Apps MCP Server: Complete Guide to Every Feature (Public Preview 2026)

Power Apps MCP Server agent feed — AI agent extracting Dataverse records with human approval interface — AIDevMe 2026

The Power Apps MCP (Model Context Protocol) Server is now in public preview. It exposes three tools — invoke_data_entry, request_assistance, and log_for_review — that let AI agents automate tasks inside model-driven apps with built-in human supervision via a redesigned agent feed. This guide covers every feature, technical detail, current limitation, and step-by-step setup path.

Terraform for Power Platform Developers: Provision Azure Resources & Automate CI/CD

Terraform for Power Platform Developers: Provision Azure Resources & Automate CI/CD

This guide shows Power Platform developers how to use Terraform to provision and manage Azure resources — Key Vault, Storage, Function Apps, API Management, and App Registrations — and integrate the full infrastructure lifecycle into GitHub Actions and Azure DevOps pipelines. All code samples are production-ready and environment-parameterized.

Microsoft Copilot Studio vs Azure AI Foundry: The Complete Guide to Choosing Your AI Platform in 2026

Microsoft Copilot Studio vs Azure AI Foundry: The Complete Guide to Choosing Your AI Platform in 2026

Confused about Microsoft Copilot Studio vs Azure AI Foundry? I was too. After building projects on both platforms, I'm sharing exactly when to use each one—and why using both together is actually the smartest strategy. No corporate jargon, just real advice from someone who's been there.

Announcing: Mastering Microsoft Copilot Studio in VS Code

Illustration showing Microsoft Copilot Studio and Visual Studio Code, with a Copilot assistant, workflow blocks, and development tools representing building copilots in VS Code.

Ready to transform your Copilot Studio development from web-based clicks to professional code-based workflows? This comprehensive 8-part series guides you through mastering the VS Code extension, covering version control, CI/CD pipelines, team collaboration, and enterprise deployment patterns. Learn from real-world case studies, avoid common pitfalls, and discover when to use VS Code versus the web UI. Perfect for developers at all levels—from those just discovering the extension to architects building complex multi-agent systems.

PCF Controls Tips & Tricks: Writing Testable Static Methods with Dependency Injection

PCF Controls Tips & Tricks: Writing Testable Static Methods with Dependency Injection

Learn why some PCF methods are impossible to test while others achieve 100% test coverage—and how to write testable PCF methods from the start. This in-depth comparison of isInDesignMode() and isAuthoringMode() reveals the critical difference between global state dependencies and dependency injection in Power Apps Component Framework development. Discover why JSDOM's limitations make browser global access untestable, how to leverage PCF context properties for reliable unit tests with Jest, and the design principles that separate maintainable code from technical debt. With real test results showing 5 passing tests versus skipped placeholders, you'll understand exactly how dependency injection transforms PCF code quality. Perfect for developers building enterprise-grade PCF controls who value comprehensive test coverage and sustainable code architecture.