diff --git a/build.gradle b/build.gradle
index a3f44b927852..90b6a57ccf67 100644
--- a/build.gradle
+++ b/build.gradle
@@ -68,6 +68,7 @@ ext {
     // afu = "${annotationTools}/annotation-file-utilities"
 
     jtregHome = "${parentDir}/jtreg"
+    gitScriptsHome = "${project(':checker').projectDir}/bin-devel/.git-scripts"
     plumeScriptsHome = "${project(':checker').projectDir}/bin-devel/.plume-scripts"
     htmlToolsHome = "${project(':checker').projectDir}/bin-devel/.html-tools"
     doLikeJavacHome = "${project(':checker').projectDir}/bin/.do-like-javac"
@@ -248,6 +249,7 @@ allprojects {
             // If you add any formatters to this block that require dependencies, then you must also
             // add them to spotlessPredeclare block.
             def doNotFormat = [
+                'checker/bin-devel/.git-scripts/**',
                 'checker/bin-devel/.plume-scripts/**',
                 'checker/tests/ainfer-*/annotated/*',
                 'dataflow/manual/examples/',
@@ -804,6 +806,7 @@ def createCloneTask(taskName, url, directory, extraArgs = []) {
 }
 
 
+createCloneTask('getGitScripts', 'https://github.com/eisop-plume-lib/git-scripts.git', gitScriptsHome)
 createCloneTask('getPlumeScripts', 'https://github.com/eisop-plume-lib/plume-scripts.git', plumeScriptsHome)
 createCloneTask('getHtmlTools', 'https://github.com/plume-lib/html-tools.git', htmlToolsHome)
 createCloneTask('getDoLikeJavac', 'https://github.com/opprop/do-like-javac.git', doLikeJavacHome)
diff --git a/checker/bin-devel/checkout-historical.sh b/checker/bin-devel/checkout-historical.sh
index dc543c2aa8e3..dab417805cf1 100755
--- a/checker/bin-devel/checkout-historical.sh
+++ b/checker/bin-devel/checkout-historical.sh
@@ -89,7 +89,7 @@ git checkout -B __merge_eval__
 echo "plume-scripts"
 PLUME_SCRIPTS="checker/bin-devel/.plume-scripts"
 if [ ! -d "$PLUME_SCRIPTS" ] ; then
-  git clone -q https://github.com/plume-lib/plume-scripts.git "${PLUME_SCRIPTS}"
+  git clone -q https://github.com/eisop-plume-lib/plume-scripts.git "${PLUME_SCRIPTS}"
 fi
 COMMIT="$(cd "${PLUME_SCRIPTS}" && git rev-list -n 1 --first-parent --before="${commit_date}" master)"
 if [ -n "${COMMIT}" ] ; then
@@ -102,7 +102,7 @@ echo "html-tools"
 HTML_TOOLS="checker/bin-devel/.plume-scripts"
 COMMIT="$(cd "${HTML_TOOLS}" && git rev-list -n 1 --first-parent --before="${commit_date}" master)"
 if [ ! -d "$HTML_TOOLS" ] ; then
-  git clone -q https://github.com/plume-lib/html-tools.git "${HTML_TOOLS}"
+  git clone -q https://github.com/eisop-plume-lib/html-tools.git "${HTML_TOOLS}"
 fi
 if [ -n "${COMMIT}" ] ; then
   # COMMIT is non-empty
diff --git a/checker/bin-devel/clone-related.sh b/checker/bin-devel/clone-related.sh
index a0b701483395..e8f89e73dc36 100755
--- a/checker/bin-devel/clone-related.sh
+++ b/checker/bin-devel/clone-related.sh
@@ -31,25 +31,25 @@ else
 fi
 echo "JAVA_HOME=${JAVA_HOME}"
 
-# Using `(cd "$CHECKERFRAMEWORK" && ./gradlew getPlumeScripts -q)` leads to infinite regress.
-PLUME_SCRIPTS="$CHECKERFRAMEWORK/checker/bin-devel/.plume-scripts"
-if [ -d "$PLUME_SCRIPTS" ] ; then
-  (cd "$PLUME_SCRIPTS" && (git pull -q || true))
+# Using `(cd "$CHECKERFRAMEWORK" && ./gradlew getGitScripts -q)` leads to infinite regress.
+GIT_SCRIPTS="$CHECKERFRAMEWORK/checker/bin-devel/.git-scripts"
+if [ -d "$GIT_SCRIPTS" ] ; then
+  (cd "$GIT_SCRIPTS" && (git pull -q || true))
 else
   (cd "$CHECKERFRAMEWORK/checker/bin-devel" && \
-      (git clone --filter=blob:none -q https://github.com/eisop-plume-lib/plume-scripts.git .plume-scripts || \
-       (sleep 1m && git clone --filter=blob:none -q https://github.com/eisop-plume-lib/plume-scripts.git .plume-scripts)))
+      (git clone --filter=blob:none -q https://github.com/eisop-plume-lib/git-scripts.git .git-scripts || \
+       (sleep 60 && git clone --filter=blob:none -q https://github.com/eisop-plume-lib/git-scripts.git .git-scripts)))
 fi
 
 # Clone the annotated JDK into ../jdk .
-"$PLUME_SCRIPTS/git-clone-related" ${DEBUG_FLAG} opprop jdk
+"$GIT_SCRIPTS/git-clone-related" ${DEBUG_FLAG} opprop jdk
 
 # AFU="${AFU:-../annotation-tools/annotation-file-utilities}"
 # # Don't use `AT=${AFU}/..` which causes a git failure.
 # AT=$(dirname "${AFU}")
 
 # ## Build annotation-tools (Annotation File Utilities)
-# "$PLUME_SCRIPTS/git-clone-related" ${DEBUG_FLAG} eisop annotation-tools "${AT}"
+# "$GIT_SCRIPTS/git-clone-related" ${DEBUG_FLAG} eisop annotation-tools "${AT}"
 # if [ ! -d ../annotation-tools ] ; then
 #   ln -s "${AT}" ../annotation-tools
 # fi
diff --git a/checker/bin-devel/test-cf-inference.sh b/checker/bin-devel/test-cf-inference.sh
index 32b674db3872..e8dda5b5d2a9 100755
--- a/checker/bin-devel/test-cf-inference.sh
+++ b/checker/bin-devel/test-cf-inference.sh
@@ -15,7 +15,7 @@ source "$SCRIPTDIR"/build.sh
 ## script rather than in ./test/downstream.sh, because it needs a different
 ## Docker image.
 
-"$SCRIPTDIR/.plume-scripts/git-clone-related" opprop checker-framework-inference
+"$SCRIPTDIR/.git-scripts/git-clone-related" opprop checker-framework-inference
 
 export PATH=$AFU/scripts:$PATH
 cd ../checker-framework-inference
diff --git a/checker/bin-devel/test-daikon-part1.sh b/checker/bin-devel/test-daikon-part1.sh
index 7a7b2a6351db..1a2c7e898a91 100755
--- a/checker/bin-devel/test-daikon-part1.sh
+++ b/checker/bin-devel/test-daikon-part1.sh
@@ -17,7 +17,7 @@ echo "running \"./gradlew assembleForJavac\" for checker-framework"
 
 
 # daikon-typecheck: 15 minutes
-"$SCRIPTDIR/.plume-scripts/git-clone-related" eisop-codespecs daikon
+"$SCRIPTDIR/.git-scripts/git-clone-related" eisop-codespecs daikon
 cd ../daikon
 git log | head -n 5
 make compile
diff --git a/checker/bin-devel/test-daikon-part2.sh b/checker/bin-devel/test-daikon-part2.sh
index 4151eb723de2..860e52851920 100755
--- a/checker/bin-devel/test-daikon-part2.sh
+++ b/checker/bin-devel/test-daikon-part2.sh
@@ -16,7 +16,7 @@ echo "running \"./gradlew assembleForJavac\" for checker-framework"
 ./gradlew assembleForJavac --console=plain -Dorg.gradle.internal.http.socketTimeout=60000 -Dorg.gradle.internal.http.connectionTimeout=60000
 
 # daikon-typecheck: 15 minutes
-"$SCRIPTDIR/.plume-scripts/git-clone-related" eisop-codespecs daikon
+"$SCRIPTDIR/.git-scripts/git-clone-related" eisop-codespecs daikon
 cd ../daikon
 git log | head -n 5
 make compile
diff --git a/checker/bin-devel/test-daikon.sh b/checker/bin-devel/test-daikon.sh
index 85610dc359fd..97c8e8f98c0c 100755
--- a/checker/bin-devel/test-daikon.sh
+++ b/checker/bin-devel/test-daikon.sh
@@ -16,7 +16,7 @@ echo "running \"./gradlew assembleForJavac\" for checker-framework"
 ./gradlew assembleForJavac --console=plain -Dorg.gradle.internal.http.socketTimeout=60000 -Dorg.gradle.internal.http.connectionTimeout=60000
 
 # daikon-typecheck: 15 minutes
-"$SCRIPTDIR/.plume-scripts/git-clone-related" eisop-codespecs daikon -q --single-branch --depth 50
+"$SCRIPTDIR/.git-scripts/git-clone-related" eisop-codespecs daikon -q --single-branch --depth 50
 cd ../daikon
 git log | head -n 5
 make compile
diff --git a/checker/bin-devel/test-downstream.sh b/checker/bin-devel/test-downstream.sh
index 31cc12dd15df..53be63895f07 100755
--- a/checker/bin-devel/test-downstream.sh
+++ b/checker/bin-devel/test-downstream.sh
@@ -22,5 +22,5 @@ source "$SCRIPTDIR"/clone-related.sh
 
 ## This is moved to misc, because otherwise it would be the only work done by this script.
 # # Checker Framework demos
-# "$SCRIPTDIR/.plume-scripts/git-clone-related" eisop checker-framework.demos
+# "$SCRIPTDIR/.git-scripts/git-clone-related" eisop checker-framework.demos
 # ./gradlew :checker:demosTests --console=plain --warning-mode=all
diff --git a/checker/bin-devel/test-guava-formatter.sh b/checker/bin-devel/test-guava-formatter.sh
index 33d7b9560ca4..57eb547766fc 100755
--- a/checker/bin-devel/test-guava-formatter.sh
+++ b/checker/bin-devel/test-guava-formatter.sh
@@ -12,7 +12,7 @@ export ORG_GRADLE_PROJECT_useJdk17Compiler=true
 source "$SCRIPTDIR"/clone-related.sh
 
 
-"$SCRIPTDIR/.plume-scripts/git-clone-related" eisop guava
+"$SCRIPTDIR/.git-scripts/git-clone-related" eisop guava
 cd ../guava
 
 ./typecheck.sh formatter
diff --git a/checker/bin-devel/test-guava-index.sh b/checker/bin-devel/test-guava-index.sh
index 23707e37ab57..32a787cd091a 100755
--- a/checker/bin-devel/test-guava-index.sh
+++ b/checker/bin-devel/test-guava-index.sh
@@ -13,7 +13,7 @@ export ORG_GRADLE_PROJECT_useJdk17Compiler=true
 source "$SCRIPTDIR"/clone-related.sh
 
 
-"$SCRIPTDIR/.plume-scripts/git-clone-related" eisop guava
+"$SCRIPTDIR/.git-scripts/git-clone-related" eisop guava
 cd ../guava
 
 if [ "$TRAVIS" = "true" ] ; then
diff --git a/checker/bin-devel/test-guava-interning.sh b/checker/bin-devel/test-guava-interning.sh
index e18a35078be3..9dfaa51169bb 100755
--- a/checker/bin-devel/test-guava-interning.sh
+++ b/checker/bin-devel/test-guava-interning.sh
@@ -12,7 +12,7 @@ export ORG_GRADLE_PROJECT_useJdk17Compiler=true
 source "$SCRIPTDIR"/clone-related.sh
 
 
-"$SCRIPTDIR/.plume-scripts/git-clone-related" eisop guava
+"$SCRIPTDIR/.git-scripts/git-clone-related" eisop guava
 cd ../guava
 
 ./typecheck.sh interning
diff --git a/checker/bin-devel/test-guava-lock.sh b/checker/bin-devel/test-guava-lock.sh
index 2bea848dc256..d146d5d1ba7f 100755
--- a/checker/bin-devel/test-guava-lock.sh
+++ b/checker/bin-devel/test-guava-lock.sh
@@ -12,7 +12,7 @@ export ORG_GRADLE_PROJECT_useJdk17Compiler=true
 source "$SCRIPTDIR"/clone-related.sh
 
 
-"$SCRIPTDIR/.plume-scripts/git-clone-related" eisop guava
+"$SCRIPTDIR/.git-scripts/git-clone-related" eisop guava
 cd ../guava
 
 ./typecheck.sh lock
diff --git a/checker/bin-devel/test-guava-nullness.sh b/checker/bin-devel/test-guava-nullness.sh
index 72282d28e212..4ee36fb5b4ab 100755
--- a/checker/bin-devel/test-guava-nullness.sh
+++ b/checker/bin-devel/test-guava-nullness.sh
@@ -12,7 +12,7 @@ export ORG_GRADLE_PROJECT_useJdk17Compiler=true
 source "$SCRIPTDIR"/clone-related.sh
 
 
-"$SCRIPTDIR/.plume-scripts/git-clone-related" eisop guava
+"$SCRIPTDIR/.git-scripts/git-clone-related" eisop guava
 cd ../guava
 
 ./typecheck.sh nullness
diff --git a/checker/bin-devel/test-guava-regex.sh b/checker/bin-devel/test-guava-regex.sh
index cb42020eab3a..a4f042172062 100755
--- a/checker/bin-devel/test-guava-regex.sh
+++ b/checker/bin-devel/test-guava-regex.sh
@@ -12,7 +12,7 @@ export ORG_GRADLE_PROJECT_useJdk17Compiler=true
 source "$SCRIPTDIR"/clone-related.sh
 
 
-"$SCRIPTDIR/.plume-scripts/git-clone-related" eisop guava
+"$SCRIPTDIR/.git-scripts/git-clone-related" eisop guava
 cd ../guava
 
 ./typecheck.sh regex
diff --git a/checker/bin-devel/test-guava-signature.sh b/checker/bin-devel/test-guava-signature.sh
index 66751585b090..a7ff4ceee08d 100755
--- a/checker/bin-devel/test-guava-signature.sh
+++ b/checker/bin-devel/test-guava-signature.sh
@@ -12,7 +12,7 @@ export ORG_GRADLE_PROJECT_useJdk17Compiler=true
 source "$SCRIPTDIR"/clone-related.sh
 
 
-"$SCRIPTDIR/.plume-scripts/git-clone-related" eisop guava
+"$SCRIPTDIR/.git-scripts/git-clone-related" eisop guava
 cd ../guava
 
 ./typecheck.sh signature
diff --git a/checker/bin-devel/test-guava.sh b/checker/bin-devel/test-guava.sh
index 7bc125a4a9bf..a56e559f03ca 100755
--- a/checker/bin-devel/test-guava.sh
+++ b/checker/bin-devel/test-guava.sh
@@ -15,7 +15,7 @@ source "$SCRIPTDIR"/clone-related.sh
 # TODO: Maybe I should move this into the CI job, and do it for all CI jobs.
 cp "$SCRIPTDIR"/mvn-settings.xml ~/settings.xml
 
-"$SCRIPTDIR/.plume-scripts/git-clone-related" eisop guava
+"$SCRIPTDIR/.git-scripts/git-clone-related" eisop guava
 cd ../guava
 
 if [ "$TRAVIS" = "true" ] ; then
diff --git a/checker/bin-devel/test-jspecify-conformance.sh b/checker/bin-devel/test-jspecify-conformance.sh
new file mode 100755
index 000000000000..e7d7fb5f8b89
--- /dev/null
+++ b/checker/bin-devel/test-jspecify-conformance.sh
@@ -0,0 +1,17 @@
+#!/bin/bash
+
+set -e
+set -o verbose
+set -o xtrace
+export SHELLOPTS
+echo "SHELLOPTS=${SHELLOPTS}"
+
+SCRIPTDIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )"
+# shellcheck disable=SC1090 # In newer shellcheck than 0.6.0, pass: "-P SCRIPTDIR" (literally)
+export ORG_GRADLE_PROJECT_useJdk17Compiler=true
+source "$SCRIPTDIR"/clone-related.sh
+
+GIT_SCRIPTS="$SCRIPTDIR/.git-scripts"
+"$GIT_SCRIPTS/git-clone-related" eisop jspecify-conformance
+cd ../jspecify-conformance
+./gradlew test --console=plain -PcfLocal
diff --git a/checker/bin-devel/test-misc.sh b/checker/bin-devel/test-misc.sh
index 8158fca7f3bf..7d7ea89cf16d 100755
--- a/checker/bin-devel/test-misc.sh
+++ b/checker/bin-devel/test-misc.sh
@@ -14,7 +14,7 @@ source "$SCRIPTDIR"/clone-related.sh
 PLUME_SCRIPTS="$SCRIPTDIR/.plume-scripts"
 
 ## Checker Framework demos
-"$PLUME_SCRIPTS/git-clone-related" eisop checker-framework.demos -q --single-branch --depth 50
+"$GIT_SCRIPTS/git-clone-related" eisop checker-framework.demos
 ./gradlew :checker:demosTests --console=plain --warning-mode=all
 
 status=0
@@ -62,6 +62,6 @@ git diff  --exit-code docs/manual/contributors.tex || \
      echo "  * Update your git configuration by running:  git config --global user.name \"YOURFULLNAME\"" &&
      echo "  * Add your name to your GitHub account profile at https://github.com/settings/profile" &&
      echo "  * Make a pull request to add your GitHub ID to" &&
-     echo "    https://github.com/eisop-plume-lib/plume-scripts/blob/master/git-authors.sed" &&
+     echo "    https://github.com/eisop-plume-lib/git-scripts/blob/master/git-authors.sed" &&
      echo "    and remake contributors.tex after that pull request is merged." &&
      false)
diff --git a/checker/bin-devel/test-plume-lib.sh b/checker/bin-devel/test-plume-lib.sh
index 9d0d0fa07cb4..e43f7f640246 100755
--- a/checker/bin-devel/test-plume-lib.sh
+++ b/checker/bin-devel/test-plume-lib.sh
@@ -49,7 +49,7 @@ for PACKAGE in "${PACKAGES[@]}"; do
   echo "PACKAGE=${PACKAGE}"
   PACKAGEDIR="/tmp/${PACKAGE}"
   rm -rf "${PACKAGEDIR}"
-  "$SCRIPTDIR/.plume-scripts/git-clone-related" eisop-plume-lib "${PACKAGE}" "${PACKAGEDIR}" -q --single-branch --depth 250
+  "$SCRIPTDIR/.git-scripts/git-clone-related" eisop-plume-lib "${PACKAGE}" "${PACKAGEDIR}"
   # Uses "compileJava" target instead of "assemble" to avoid the javadoc error "Error fetching URL:
   # https://docs.oracle.com/en/java/javase/17/docs/api/" due to network problems.
   echo "About to call ./gradlew --console=plain -PcfLocal compileJava"
diff --git a/docs/manual/Makefile b/docs/manual/Makefile
index f133e41b9405..233b7db095a3 100644
--- a/docs/manual/Makefile
+++ b/docs/manual/Makefile
@@ -73,14 +73,17 @@ manual.html: manual.pdf CFLogo.png favicon-checkerframework.png ../api
 # Add CSS styling for some links, since \ahrefloc doesn't permit styling
 	sed -i -e 's%\(<a href="#[^"]*"\)\(><span style="font-size:small">&\#X1F517;</span></a>\)%\1 style="color:inherit; text-decoration:none"\2%g' manual.html
 
+../../checker/bin-devel/.git-scripts:
+	cd ../.. && ./gradlew --stacktrace getGitScripts
+
 ../../checker/bin-devel/.plume-scripts:
 	cd ../.. && ./gradlew --stacktrace getPlumeScripts
 
 .PHONY: contributors.tex
 contributors.tex:
-# Update plume-scripts even if it is already cloned
-	cd ../.. && (./gradlew --stacktrace getPlumeScripts || (sleep 60 && ./gradlew --stacktrace getPlumeScripts))
-	../../checker/bin-devel/.plume-scripts/git-authors --latex --punctuation > contributors.tex
+# Update git-scripts even if it is already cloned
+	cd ../.. && (./gradlew --stacktrace getGitScripts || (sleep 60 && ./gradlew --stacktrace getGitScripts))
+	../../checker/bin-devel/.git-scripts/git-authors --latex --punctuation > contributors.tex
 
 ../api:
 	cd ../.. && ./gradlew allJavadoc