From ffed78f9f53ae3a4c0177395c581d538b6b78c7e Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Tue, 15 Sep 2026 19:54:02 +0000
Subject: [PATCH 1/2] ci: skip coverage on windows

Co-authored-by: timotheeguerin <1031227+timotheeguerin@users.noreply.github.com>
---
 .github/workflows/core-ci.yml | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/.github/workflows/core-ci.yml b/.github/workflows/core-ci.yml
index c02c5b7a1dd..b0dbb76f812 100644
--- a/.github/workflows/core-ci.yml
+++ b/.github/workflows/core-ci.yml
@@ -47,11 +47,16 @@ jobs:
         run: pnpm run build
 
       - name: Test
+        if: runner.os == 'Windows'
+        run: pnpm vitest run --reporter=default --reporter=github-actions
+
+      - name: Test with coverage
+        if: runner.os != 'Windows'
         run: pnpm vitest run --coverage --reporter=default --reporter=github-actions
 
       - name: Upload coverage artifacts
         uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
-        if: always()
+        if: runner.os != 'Windows' && always()
         with:
           name: coverage-${{ matrix.os }}-node${{ matrix.node-version }}
           path: packages/*/coverage/

From ceb666d2b718b28c1db384da04f58ba77258b40c Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Tue, 15 Sep 2026 20:06:02 +0000
Subject: [PATCH 2/2] ci: configure coverage from matrix

Co-authored-by: timotheeguerin <1031227+timotheeguerin@users.noreply.github.com>
---
 .github/workflows/core-ci.yml | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/.github/workflows/core-ci.yml b/.github/workflows/core-ci.yml
index b0dbb76f812..98e7f96af56 100644
--- a/.github/workflows/core-ci.yml
+++ b/.github/workflows/core-ci.yml
@@ -16,6 +16,11 @@ jobs:
       matrix:
         os: [ubuntu-latest, windows-latest]
         node-version: ["22.x", "24.x", "26.x"]
+        include:
+          - os: ubuntu-latest
+            coverage: --coverage
+          - os: windows-latest
+            coverage: ""
 
     env:
       TYPESPEC_VS_CI_BUILD: true
@@ -47,16 +52,11 @@ jobs:
         run: pnpm run build
 
       - name: Test
-        if: runner.os == 'Windows'
-        run: pnpm vitest run --reporter=default --reporter=github-actions
-
-      - name: Test with coverage
-        if: runner.os != 'Windows'
-        run: pnpm vitest run --coverage --reporter=default --reporter=github-actions
+        run: pnpm vitest run ${{ matrix.coverage }} --reporter=default --reporter=github-actions
 
       - name: Upload coverage artifacts
         uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
-        if: runner.os != 'Windows' && always()
+        if: always() && matrix.coverage != ''
         with:
           name: coverage-${{ matrix.os }}-node${{ matrix.node-version }}
           path: packages/*/coverage/