diff --git a/pom.xml b/pom.xml
index 7ed1c987..cdc945db 100644
--- a/pom.xml
+++ b/pom.xml
@@ -73,7 +73,8 @@
         this 'argLine' property instead of the definition of the 'argLine'
         configuration setting allows users or plugins to specify additional
         arguments. In particular, JaCoCo relies on this for the configuration
-        of its Java agent. -->
+        of its Java agent, and Pitest uses this configuration when it spawns
+        additional JVMs. -->
         <argLine>
             <!-- The JVM arguments specified in `.mvn/jvm.config` also apply to
             test JVMs, as those are also non-interactive processess running
@@ -99,7 +100,7 @@
             <!-- We cap memory usage. This may be relevant for build agents,
             but also prevents excessive memory usage by heavily parallelized
             local builds. -->
-            -Xmx1024m
+            -Xmx${argLine.xmx}
             <!-- This argument cannot be set through Surefire's
             'systemPropertyVariables' configuration setting. Setting the file
             encoding is necessary because forked unit test invocations
@@ -118,6 +119,9 @@
             from showing up in the dock and capturing window focus. -->
             -Djava.awt.headless=true
         </argLine>
+        <!-- The maximum amount of heap memory available to forked Surefire
+        processes. Factored out into a separate property to allow overriding. -->
+        <argLine.xmx>1024m</argLine.xmx>
         <!-- Our build system provides a monotonically increasing build number.
         When building locally, this number is obviously absent. So we provide a
         default value. -->
diff --git a/run-mutation-tests.sh b/run-mutation-tests.sh
new file mode 100755
index 00000000..66826c14
--- /dev/null
+++ b/run-mutation-tests.sh
@@ -0,0 +1,21 @@
+#!/usr/bin/env bash
+
+# Executes Pitest to determine the code base' mutation test coverage. The set
+# of tests executed can optionally be restricted by name. The results are found
+# in each Maven module's `target/pit-reports` directory.
+
+set -e -u -o pipefail
+
+if [ "${#}" -gt 1 ]; then
+  echo "Usage: ./$(basename "${0}") [TargetTests]"
+  exit 1
+fi
+
+targetTests=${1:-*}
+
+mvn clean test pitest:mutationCoverage \
+  -DargLine.xmx=2048m \
+  -Dverification.skip \
+  -DfailIfNoTests=false \
+  -Dtest="${targetTests}" \
+  -DtargetTests="${targetTests}"