diff --git a/.github/workflows/ci-pipeline.yml b/.github/workflows/ci-pipeline.yml
index 6161fc1c..99bd9130 100644
--- a/.github/workflows/ci-pipeline.yml
+++ b/.github/workflows/ci-pipeline.yml
@@ -78,6 +78,7 @@ jobs:
       projects: ${{ matrix.project }}
       build: true # we need to build due to xUnitv3
       restore: true # we need to restore since we disabled caching
+      verbosity-level: diagnostic
 
   test_windows:
     name: call-test-windows
@@ -96,6 +97,7 @@ jobs:
       test-arguments: -- RunConfiguration.DisableAppDomain=true
       build: true # we need to build for .net48
       restore: true # apparently we need to restore for .net48
+      verbosity-level: diagnostic
 
   integration_test:
     name: ⚗️ Integration Test
@@ -133,13 +135,92 @@ jobs:
 
       - name: Fix Linux test apphost permissions
         run: |
-          echo "Ensuring xUnit v3 test apphosts are executable on Linux..."
-          echo "Configuration: ${{ matrix.configuration }}"
-          # Dump a bit of info for debugging
-          find . -path "*/bin/${{ matrix.configuration }}/net*/*" -maxdepth 1 -type f -name "*Tests*" -print || true
-          # Actually fix permissions
-          find . -path "*/bin/${{ matrix.configuration }}/net*/*" -type f -name "*Tests*" -exec chmod +x {} +
-          echo "Permissions fixed."
+          set -euo pipefail
+
+          echo "=== Context ==="
+          echo "Runner: $RUNNER_OS / $RUNNER_ARCH"
+          echo "Configuration: ${{ inputs.configuration }}"
+          echo "Workspace: $GITHUB_WORKSPACE"
+          echo "PWD: $(pwd)"
+          echo "Event: $GITHUB_EVENT_NAME"
+          echo "Ref: $GITHUB_REF"
+          echo "SHA: $GITHUB_SHA"
+          echo
+
+          echo "=== .NET info ==="
+          dotnet --info || true
+          echo
+
+          echo "=== Git state ==="
+          git rev-parse HEAD || true
+          git status --porcelain || true
+          git rev-parse --is-shallow-repository || true
+          echo
+
+          # Paths we care about
+          BIN_GLOB="*/bin/${{ inputs.configuration }}/net*/*"
+          OBJ_GLOB="*/obj/${{ inputs.configuration }}/net*/*"
+
+          echo "=== Brute-force chmod (bin + obj) ==="
+          find . -type f \( -path "$BIN_GLOB" -o -path "$OBJ_GLOB" \) -exec chmod a+x {} + 2>/dev/null || true
+          echo "chmod completed (errors ignored)."
+          echo
+
+          echo "=== Mount options (look for noexec) ==="
+          # If binaries live on a noexec mount, chmod won't help.
+          mount | sed -n '1,200p' || true
+          echo
+
+          echo "=== Candidate executables (top 200) ==="
+          # Show what we might execute; exclude obvious managed files
+          find . -type f -path "$BIN_GLOB" \
+            ! -name "*.dll" ! -name "*.pdb" ! -name "*.json" ! -name "*.xml" \
+            -printf "%m %u:%g %s %p\n" | head -n 200 || true
+          echo
+
+          echo "=== Likely xUnit / test hosts (if present) ==="
+          # These names vary; do not rely on just *Tests*
+          find . -type f -path "$BIN_GLOB" \( \
+              -name "testhost*" -o \
+              -name "*xunit*" -o \
+              -name "*Tests*" -o \
+              -name "*.runsettings" \
+            \) -printf "%m %u:%g %s %p\n" | head -n 200 || true
+          echo
+
+          echo "=== Deep diagnostics for any 'testhost' or apphost candidates ==="
+          # For each likely executable, show the facts that explain 'permission denied' vs 'exec format error'
+          while IFS= read -r f; do
+            echo "--- $f ---"
+            ls -la "$f" || true
+
+            # Identify file type and architecture
+            file -L "$f" || true
+
+            # If it's an ELF binary, show its dynamic interpreter and linked libs (exec format errors often show up here)
+            if file -L "$f" | grep -q "ELF"; then
+              echo "readelf -l (interpreter):"
+              readelf -l "$f" 2>/dev/null | sed -n '1,80p' || true
+              echo "ldd (dependencies):"
+              ldd "$f" 2>/dev/null || true
+            fi
+
+            # If it's a script, CRLF in the shebang can cause 'Exec format error'
+            if head -c 2 "$f" 2>/dev/null | grep -q "#!"; then
+              echo "shebang:"
+              head -n 1 "$f" | cat -A || true
+            fi
+
+            echo
+          done < <(
+            find . -type f -path "$BIN_GLOB" \( \
+              -name "testhost*" -o \
+              -name "*xunit*" -o \
+              -name "*Tests*" \
+            \) | head -n 50
+          ) || true
+
+          echo "=== Done diagnostics step ==="
         shell: bash
 
       - name: Test with ${{ matrix.configuration }} build