dotnet-sentinel-test Test-only skill used by Copilot activation smoke tests to verify progressive disclosure via sibling file access. Scope - Verifying that Copilot CLI can read sibling files referenced from a skill - Testing progressive disclosure of content through file references Out of scope - Production .NET guidance (this is a test fixture only) Usage When asked about the sentinel test, read the sibling reference file for detailed context. For additional implementation details and the verification sentinel, see the sibling file in this skill directory. ---