What is MCP (Model Context Protocol)?

If your business builds software, whether for customers, partners, or internal systems, there’s a problem you’ve probably faced: things work fine in testing, but behave differently in production. Or worse, differently on every device, system, or environment.

MCP (short for Module Compatibility Program) is Google’s way of solving that problem in a structured, repeatable way. It’s not a product, it’s a framework, one that helps make sure your software modules stay compatible as the systems around them evolve.

At Hyrdle, we use MCP tools and ideas to build more stable, future-proof software for clients. Here’s why it matters.

Why compatibility is harder than it sounds Let’s say your business runs software across multiple devices, phones, embedded systems, workstations, or different Android-based platforms. Each one might have slightly different versions, settings, or vendor customisations. You make one small update, and suddenly something breaks.

That kind of issue is expensive. It slows down releases, creates customer headaches, and increases maintenance overhead. The root cause? No shared definition of what “compatible” really means.

Enter MCP Google introduced the Module Compatibility Program to tackle this exact issue. It was first built for Android Automotive (used in cars), but the idea applies much more broadly.

MCP defines what a software module must do, and not do, to work reliably across different environments. It also includes tools to:

Check if your module meets those standards

Detect changes before they cause issues

Validate updates against older versions or system expectations

In plain terms, it helps teams answer: ✅ “Will this still work if the system changes?” ✅ “Have we broken anything by accident?” ✅ “Can we ship this without spending days retesting everything?”

How we use it at Hyrdle We work with businesses building modular systems, think apps, APIs, SDKs, and platform-level software. MCP principles help us:

Catch breaking changes early in development

Build once, and run across different environments without rewriting

Reduce time spent on regression testing

Deliver more stable updates

Even if you’re not working with Android or Google platforms directly, the same thinking applies.

Real-world examples MCP-style compatibility checks help in areas like:

B2B platforms If you’re shipping SDKs to partners, MCP tools can flag when a change would break their integration.

Enterprise apps Need to support older Android versions or devices with custom setups? Compatibility rules make testing predictable.

APIs and plugins MCP-style tools help ensure your internal teams don’t break each other’s modules without realising it.

IoT systems Devices in the field can’t always be updated easily. Ensuring your code works across versions is critical.

Why this matters now As businesses move toward modular systems, microservices, and distributed platforms, the cost of inconsistency grows. MCP offers a practical way to keep complexity in check. It doesn’t solve everything, but it helps teams move faster without breaking things.

If your business builds or maintains software across environments, it’s worth adopting this mindset: compatibility is not a bonus, it’s a requirement.