Buck2 Test Workflow FAQs

Question 1

How does it identify affected downstream packages?

Accepted Answer

The skill uses target determination analysis and reverse dependency (rdeps) checks. This identifies not just direct dependents, but also transitive dependencies that might be broken by changes to shared libraries or public APIs.

Question 2

When should I use this Claude Code skill?

Accepted Answer

Use this skill proactively after modifying source code, updating BUILD or PACKAGE files, refactoring, or adding dependencies. It is especially critical to run this workflow before committing code or opening a pull request.

Question 3

Does it help with troubleshooting build failures?

Accepted Answer

Yes, it includes specific troubleshooting guidance for common monorepo issues, such as test interference, missing test isolation, and errors related to target determination universe parameters.

Question 4

What does the Buck2 Test Workflow skill do?

Accepted Answer

This skill provides Claude with a systematic, multi-level testing strategy for Buck2 builds. it ensures that local changes are validated through immediate target tests, recursive package checks, and comprehensive downstream dependency analysis.

Question 5

What are the benefits of recursive testing within this skill?

Accepted Answer

By using the recursive '...' pattern, the skill validates every target within a package. This catches integration failures, linting issues, and sibling target regressions that testing a single specific target would often miss.

Buck2 Test Workflow

Buck2 Test Workflow

About

Key Features

Use Cases

About

Key Features

Use Cases