Microsoft releases Scope to trace AI coding assistant mistakes
Microsoft has released a free tool called Scope that helps developers find mistakes made by AI coding assistants and improve how those assistants work.
AI coding assistants can write code, fix errors and build applications. They can also misunderstand instructions, use the wrong tools or produce code that looks right but behaves wrongly. Scope is designed to show developers why those problems happen.
Microsoft spent more than a year developing the tool. It has now made Scope available to developers for free, as an open-source project.
How Scope works
Scope records how an AI assistant completes a task. It tracks which tools the assistant uses, what instructions it follows and what files it creates.
That record matters because an AI assistant’s mistake is often hard to trace. A developer may see a wrong result without knowing which step went wrong. With a trace, the developer can find the faulty step, improve the instructions or the software, and test the assistant again to see whether the problem is fixed.
Scope also lets developers compare how different AI coding assistants perform on the same tasks. That comparison helps teams choose the right assistant for a job, rather than judging tools on marketing claims alone.
The platform can test assistants such as GitHub Copilot and Claude Code. Companies can also run Scope on their own computers or servers to test private projects without sharing their code publicly. That local option matters for teams working on client code or unreleased products.
Results from Microsoft’s own testing
Microsoft’s Azure Cosmos DB team has already used Scope to improve how AI assistants work with its database software. The testing helped the team find and fix 20 problems with its development tools and 27 issues in its documentation.
After those changes, the correct use of one database feature rose from 47 per cent to 100 per cent in the tests. Another common mistake, which had previously appeared in 47 per cent of cases, was eliminated during testing.
Those figures come from Microsoft’s own tests, and the company itself notes that they do not mean AI coding assistants will always work without errors. The improvement shows what tracing can achieve in a controlled test, not a guarantee for every project.
Free, but not costless
Scope is free and open source, and Microsoft has made the project available through its official Scope website and GitHub. Anyone can use, modify and improve it.
Companies may still need to pay for the computers, servers and AI services required to run it. The tool itself costs nothing, but testing AI assistants at scale still uses computing resources and API calls.
For developers in Pakistan, that combination is relevant. A free tool lowers the barrier to testing AI assistants properly, which matters for freelance developers and small teams who cannot afford enterprise testing platforms. The option to run Scope locally also helps developers who handle private client code and cannot upload it to an outside service.
The wider point is simple. As AI assistants take on more coding work, developers need better ways to check that work. Scope gives them a record of what the assistant did, step by step, so mistakes can be found and fixed rather than guessed at.
What is Microsoft Scope?
Scope is a free, open-source tool that records how an AI coding assistant completes a task, including the tools it uses, the instructions it follows and the files it creates.
Which AI assistants can it test?
Microsoft says Scope can test assistants such as GitHub Copilot and Claude Code, and companies can run it on their own computers or servers for private projects.
What results did Microsoft report?
Its Cosmos DB team fixed 20 development-tool problems and 27 documentation issues, with correct use of one database feature rising from 47 per cent to 100 per cent in tests.
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Sources and prior coverage
- ProPakistani, “Microsoft Launches Free Tool to Find Mistakes Made by AI Coding Assistants” (27 October 2026): https://propakistani.pk/2026/10/27/microsoft-launches-free-tool-to-find-mistakes-made-by-ai-coding-assistants/
