AI-assisted IntelliSense for your team’s codebase

Caty Caldwell

Visual Studio IntelliCode uses machine learning to offer useful, contextually-rich code completion suggestions as you type, allowing you to learn APIs more quickly and code faster. Although IntelliCode’s base model was trained on over 3000 top open source C# GitHub repositories, it does not include all the custom types in your code base. To produce useful, high-fidelity, contextually-rich suggestions, the model needs to be tailored to unique types or domain-specific APIs that aren’t used in open source code. To make IntelliSense recommendations based on the wisdom of your team’s codebase, the model needs to train with your team’s code.

Earlier this year, we extended our ML model training capabilities beyond our initial Github trained base model to enable you to personalize your IntelliCode completion suggestions by creating team models trained on your own code.

Team completions shared and automated easily!

Your team completions become part of your normal developer workflow just by associating a model to your repo. Anyone with access to your repository, automatically gets team completions – no extra configuration steps are required!

Once you’re ready, you can keep your completions up-to-date with our new Azure DevOps task that can retrain your models on CI. When a change is made to your codebase, the model is automatically trained and shared with your team.

2 steps to team completions


Setting up IntelliCode team completions with IntelliCode training service in Azure Dev Ops

Set up and share

Repository-associated models are automatically shared with others working in the same codebase as long as users have enabled automatic acquisition of team models in Visual Studio. To enable automatic acquisition by going to Tools > Options > IntelliCode > Acquire team models for completion. Access to the repository is access to the model. Be sure you are at least Visual Studio 16.4 preview 4 to enable these preview features.

When training, we collect some information about the checked-out commit where the training took place. Anyone who requests that model must have the same commit in their repository and be able to produce the same information that was collected during training to receive the team model.

Please note that you’ll need to be on at least Visual Studio 2019 version 16.4 preview 5 to try out these updates to the IntelliCode team completions experience.

See more details on how to acquire and share team completions here.


Once you’re happy with the team completions on you repo, you should set up to automatically retrain as part of your continuous integration (CI) pipeline in Azure Pipelines. When code changes are pushed to your repository, the build task runs and your team completions are retrained and made available to the repo. In parallel, Visual Studio checks for updates to team completions  and will update automatically .

Install the Visual Studio IntelliCode Team Model Training task from Visual Studio Marketplace to your Azure DevOps organization or Azure DevOps Server (formerly TFS).

See more details about how to configure and automate the build task here.

Tell us what you think!

We’d love to understand your current experience with IntelliCode and where we can improve. Try out sharing team completions and automating updates today and tell us what you think of the new experience. Please note that you’ll need to be on at least Visual Studio 2019 version 16.4 preview 5 to try out these updates to the IntelliCode team completions experience.

Please raise issues and comments Visual Studio “report a problem”.

We’re interested to hear feedback about the recommendations themselves, the performance of the feature, or any capabilities you might be missing.

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