Configuring .deepsource.toml: Reference Guide

Why the .deepsource.toml file matters Every DeepSource analysis starts with one file: .deepsource.toml. This configuration file sits at the root of your repository and tells DeepSource which languages to analyze, which rules to apply, which files to skip, and which auto-formatting transformers to run. Without it, DeepSource cannot analyze your code at all. Get it wrong and you end up with hundreds of false positives from generated files, missing coverage on critical paths, or analyzers running against the wrong language version. Despite its importance, the deepsource toml configuration is one of the most common sources of setup frustration. Teams copy a basic example from the documentation, commit it, and then spend hours troubleshooting why their Go analyzer is not picking up generated protobuf files or why their Python analysis is flagging syntax that is perfectly valid in Python 3.12. The configuration surface is deceptively simple - TOML is a straightforward format - but the intera