Ant-style patterns, relative to the workspace. Absolute paths and patterns that traverse outside the workspace are rejected.

Examples:

• **/web.config - every web.config, including one at the workspace root
• src/**/appsettings.json - only under src
• src/*.json - directly in src, not in subdirectories

Patterns in one group form a union and duplicate matches are collapsed, so a file matched by two patterns in the same group is still processed once.