diff --git a/.github/scripts/run-logged.sh b/.github/scripts/run-logged.sh
new file mode 100755
index 0000000000..615d777e84
--- /dev/null
+++ b/.github/scripts/run-logged.sh
@@ -0,0 +1,27 @@
+#!/usr/bin/env bash
+# Run a command with its output in a regular file, then print that file.
+#
+# Vite Task forwards task output to its own stdout. When that stdout is a
+# pipe, the Node processes it spawns for tasks set O_NONBLOCK on the shared
+# file description for as long as they run (Node does this to every pipe it
+# touches; vp clears it at startup but cannot stop its children re-setting
+# it). A large burst of forwarded output while such a child is alive then
+# fills the pipe and the write fails with
+#   "Failed to forward task process output: Resource temporarily unavailable
+#   (os error 11)"
+# which Vite Task records as a failed task even though the task finished.
+# Node only makes pipes non-blocking, and writes to a regular file never
+# return EAGAIN, so route the output through a file and replay it afterwards.
+#
+# Usage: run-logged.sh <log-name> <command> [args...]
+set -u
+
+name=$1
+shift
+log="${RUNNER_TEMP:-/tmp}/${name}.log"
+
+"$@" >"$log" 2>&1
+status=$?
+
+cat "$log"
+exit "$status"
diff --git a/.github/workflows/cd.yml b/.github/workflows/cd.yml
index 2c42ae5bea..49d682c696 100644
--- a/.github/workflows/cd.yml
+++ b/.github/workflows/cd.yml
@@ -89,15 +89,15 @@ jobs:
 
       - name: Clean
         if: ${{ steps.release.outputs.releases_created == 'true' }}
-        run: pnpm clean
+        run: .github/scripts/run-logged.sh clean pnpm clean
 
       - name: Build
         if: ${{ steps.release.outputs.releases_created == 'true' }}
-        run: pnpm build:packages
+        run: .github/scripts/run-logged.sh build-packages pnpm build:packages
 
       - name: Build CDN bundles
         if: ${{ steps.release.outputs.releases_created == 'true' }}
-        run: pnpm build:cdn
+        run: .github/scripts/run-logged.sh build-cdn pnpm build:cdn
 
       # Fail before publishing rather than ship bundles that reach out to a public
       # CDN at runtime, which would break self-hosted and archive installs.
@@ -115,11 +115,11 @@ jobs:
       # The site task and CLI dependency graph let Vite Task reuse the package builds here.
       - name: Build site (required by html/react prepack and CLI)
         if: ${{ steps.release.outputs.releases_created == 'true' }}
-        run: pnpm build:site
+        run: .github/scripts/run-logged.sh build-site pnpm build:site
 
       - name: Build CLI
         if: ${{ steps.release.outputs.releases_created == 'true' }}
-        run: pnpm build:cli
+        run: .github/scripts/run-logged.sh build-cli pnpm build:cli
 
       - name: Publish
         if: ${{ steps.release.outputs.releases_created == 'true' }}
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 5db570e94c..7b8778cf58 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -181,7 +181,7 @@ jobs:
             filters+=(--filter "$package")
           done < <(jq -r '.[]' <<<"$PACKAGES")
 
-          pnpm exec vp run --fail-if-no-match "${filters[@]}" test:ci
+          .github/scripts/run-logged.sh test-packages pnpm exec vp run --fail-if-no-match "${filters[@]}" test:ci
 
   test-spf:
     needs: package_test_selection
@@ -217,7 +217,7 @@ jobs:
             vite-task-${{ runner.os }}-${{ runner.arch }}-packages-
 
       - name: Test SPF
-        run: pnpm exec vp run @videojs/spf#test:ci
+        run: .github/scripts/run-logged.sh test-spf pnpm exec vp run @videojs/spf#test:ci
 
   workspace:
     needs: install