From fc7cf33332cb83003c93af4031d1b9a378f23984 Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Thu, 12 Mar 2026 15:34:22 +0000
Subject: [PATCH 1/2] Initial plan


From 7cc2d8e0ce1d5a07f45b6eb8af125c04551947fa Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Thu, 12 Mar 2026 15:36:49 +0000
Subject: [PATCH 2/2] Add .NET InternalsVisibleTo note to copilot instructions

Co-authored-by: stephentoub <2642209+stephentoub@users.noreply.github.com>
---
 .github/copilot-instructions.md | 1 +
 1 file changed, 1 insertion(+)

diff --git a/.github/copilot-instructions.md b/.github/copilot-instructions.md
index 7c362ab53..013305399 100644
--- a/.github/copilot-instructions.md
+++ b/.github/copilot-instructions.md
@@ -25,6 +25,7 @@
   - Python: `cd python && uv pip install -e ".[dev]"` → `uv run pytest` (E2E tests use the test harness)
   - Go: `cd go && go test ./...`
   - .NET: `cd dotnet && dotnet test test/GitHub.Copilot.SDK.Test.csproj`
+  - **.NET testing note:** Never add `InternalsVisibleTo` to any project file when writing tests. Tests must only access public APIs.
 
 ## Testing & E2E tips ⚙️