ci: avoid downloading full diagnostics for test summaries

.github/workflows/auto-rerun-transient-ci-failures.js

@@ -34,6 +34,7 @@ const retryableWithAnnotationStepPatterns = [
     /^Set up \.NET Core$/i,
     /^Install sdk for nuget based testing$/i,
     /^Upload logs, and test results$/i,
+    /^Upload aggregation test results$/i,
 ];
 
 const ignoredFailureStepPatterns = [
@@ -91,6 +92,7 @@ const ignoredFailureStepOverridePatterns = [
 
 const postTestCleanupFailureStepPatterns = [
     /^Upload logs, and test results$/i,
+    /^Upload aggregation test results$/i,
     /^Copy CLI E2E recordings for upload$/i,
     /^Upload CLI E2E recordings$/i,
     /^Generate test results summary$/i,

.github/workflows/run-tests.yml

@@ -742,6 +742,19 @@ jobs:
             artifacts/bin/Aspire.Templates.Tests/Debug/net10.0/logs/**
             artifacts/log/test-logs/**
 
+      # Final aggregation needs only TRX files, not the binlogs, dumps, and
+      # recordings retained in the original diagnostic artifact above.
+      # Keep the same search roots to preserve repository-relative result paths.
+      - name: Upload aggregation test results
+        if: always()
+        uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
+        with:
+          name: trx-${{ inputs.testShortName }}-${{ inputs.os }}
+          path: |
+            testresults/**/*.trx
+            artifacts/bin/Aspire.Templates.Tests/Debug/net10.0/logs/**/*.trx
+            artifacts/log/test-logs/**/*.trx
+
       - name: Copy CLI E2E recordings for upload
         if: always()
         shell: bash

.github/workflows/tests.yml

@@ -775,19 +775,19 @@ jobs:
 
       - uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1
         with:
-          pattern: logs-*-ubuntu-latest
+          pattern: trx-*-ubuntu-latest
           merge-multiple: true
           path: ${{ github.workspace }}/testresults/ubuntu-latest
 
       - uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1
         with:
-          pattern: logs-*-windows-latest
+          pattern: trx-*-windows-latest
           merge-multiple: true
           path: ${{ github.workspace }}/testresults/windows-latest
 
       - uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1
         with:
-          pattern: logs-*-macos-latest
+          pattern: trx-*-macos-latest
           merge-multiple: true
           path: testresults/macos-latest
 

docs/ci/auto-rerun-transient-ci-failures.md

@@ -44,6 +44,10 @@ The full analysis runs in four passes:
 
 Passes 1–2 are hardcoded because they target well-known infrastructure signatures that rarely change. Passes 3–4 are configurable because transient test failure patterns evolve as integrations are added or CI environments change.
 
+`Upload aggregation test results` uses the same infrastructure and Windows
+post-test cleanup classifications as the full diagnostic upload. An upload
+failure does not override a concurrent test-execution failure.
+
 ## When does it trigger?
 
 | Trigger | Behavior |

docs/ci/ci-pipeline-optimizations.md

@@ -42,6 +42,26 @@ The main test workflow in `.github/workflows/tests.yml` is organized into these
 5. `results`
    - Aggregates the final workflow status after all required lanes finish
 
+### Compact final-results transfer
+
+`run-tests.yml` retains the full `logs-{testShortName}-{os}` diagnostic
+artifact and additionally uploads `trx-{testShortName}-{os}`, containing
+only TRX files from the same result and diagnostic directories. The final
+`results` job downloads the compact
+artifacts rather than downloading binlogs, dumps, and recordings again.
+
+Downloads retain the existing `{os}/testresults/` hierarchy in
+`All-TestResults`. The combined summary, original diagnostic artifacts,
+test-result existence checks, and dependency failure gate are unchanged.
+An early build or test-host failure can legitimately leave no TRX file;
+the compact upload warns in that case, while the original failure still
+blocks CI.
+
+When validating this boundary, compare every TRX path and byte against the
+full diagnostic artifacts, then compare combined summaries. Measure the
+extra per-test upload time as well as the final job's download time and
+total workflow wall time before treating the smaller transfer as a win.
+
 ## Why the jobs are split this way
 
 ### 1. Package build and CLI archive build run in parallel

tests/Infrastructure.Tests/WorkflowScripts/AutoRerunTransientCiFailuresTests.cs

@@ -96,6 +96,30 @@ public async Task IgnoresConfiguredAggregatorJobsEntirely(string jobName)
         Assert.Empty(result.SkippedJobs);
     }
 
+    [Fact]
+    [RequiresTools(["node"])]
+    public async Task RetriesCompactResultUploadForArtifactNetworkFailure()
+    {
+        WorkflowJob job = CreateJob(failedSteps: ["Upload aggregation test results"]);
+
+        AnalyzeFailedJobsResult result = await AnalyzeSingleJobAsync(job, "Failed to CreateArtifact: Unable to make request: ENOTFOUND");
+
+        Assert.Single(result.RetryableJobs);
+        Assert.Empty(result.SkippedJobs);
+    }
+
+    [Fact]
+    [RequiresTools(["node"])]
+    public async Task DoesNotRetryTestFailureAlongsideCompactResultUploadFailure()
+    {
+        WorkflowJob job = CreateJob(failedSteps: ["Run tests (Windows)", "Upload aggregation test results"]);
+
+        AnalyzeFailedJobsResult result = await AnalyzeSingleJobAsync(job, "Failed to CreateArtifact: Unable to make request: ENOTFOUND");
+
+        Assert.Empty(result.RetryableJobs);
+        Assert.Single(result.SkippedJobs);
+    }
+
     [Fact]
     [RequiresTools(["node"])]
     public async Task KeepsMixedFailureVetoWhenIgnoredTestStepsFailAlongsideRetrySafeSteps()
@@ -888,6 +912,7 @@ public async Task RepresentativeWorkflowFixturesStayAlignedWithCurrentWorkflowDe
                 "- name: Build test project",
                 "- name: Run tests (Windows)",
                 "- name: Upload logs, and test results",
+                "- name: Upload aggregation test results",
                 "- name: Copy CLI E2E recordings for upload",
                 "- name: Upload CLI E2E recordings",
                 "- name: Generate test results summary",