diff --git a/build.gradle b/build.gradle
index 5b680dfd6..cc74caccc 100644
--- a/build.gradle
+++ b/build.gradle
@@ -25,7 +25,7 @@ buildscript {
 
   dependencies {
     classpath 'com.google.cloud.tools:appengine-gradle-plugin:2.0.1'
-    classpath "net.ltgt.gradle:gradle-errorprone-plugin:0.6.1"
+    classpath 'net.ltgt.gradle:gradle-errorprone-plugin:0.6.1'
     classpath 'org.sonatype.aether:aether-api:1.13.1'
     classpath 'org.sonatype.aether:aether-impl:1.13.1'
   }
@@ -49,6 +49,7 @@ plugins {
   id 'com.diffplug.gradle.spotless' version '3.25.0'
 
   id 'jacoco'
+  id 'com.dorongold.task-tree' version '1.5'
 }
 
 wrapper {
@@ -443,6 +444,7 @@ task javaIncrementalFormatDryRun {
     println("${invokeJavaDiffFormatScript("show")}")
   }
 }
+tasks.build.dependsOn(tasks.javaIncrementalFormatCheck)
 
 // Checks if modified lines in Java source files need reformatting.
 // Note that this task processes modified Java files in the entire repository.
@@ -452,8 +454,6 @@ task javaIncrementalFormatApply {
   }
 }
 
-tasks.build.dependsOn(tasks.javaIncrementalFormatCheck)
-
 task javadoc(type: Javadoc) {
   source javadocSource
   classpath = files(javadocClasspath)
@@ -468,4 +468,16 @@ task javadoc(type: Javadoc) {
 
 tasks.build.dependsOn(tasks.javadoc)
 
+// Task for doing development on core Nomulus.
+// This fixes code formatting automatically as necessary, builds and tests the
+// core Nomulus codebase, and runs all presubmits.
+task coreDev {
+  dependsOn 'javaIncrementalFormatApply'
+  dependsOn 'javadoc'
+  dependsOn 'checkDependenciesDotGradle'
+  dependsOn 'checkLicense'
+  dependsOn ':core:check'
+  dependsOn 'assemble'
+}
+
 javadocDependentTasks.each { tasks.javadoc.dependsOn(it) }
diff --git a/gradle/dependency-locks/buildscript-classpath.lockfile b/gradle/dependency-locks/buildscript-classpath.lockfile
index 7b1b77341..6fbfd5405 100644
--- a/gradle/dependency-locks/buildscript-classpath.lockfile
+++ b/gradle/dependency-locks/buildscript-classpath.lockfile
@@ -8,6 +8,7 @@ com.diffplug.gradle.spotless:com.diffplug.gradle.spotless.gradle.plugin:3.25.0
 com.diffplug.spotless:spotless-lib-extra:1.25.0
 com.diffplug.spotless:spotless-lib:1.25.0
 com.diffplug.spotless:spotless-plugin-gradle:3.25.0
+com.dorongold.task-tree:com.dorongold.task-tree.gradle.plugin:1.5
 com.github.jengelman.gradle.plugins:shadow:5.1.0
 com.github.johnrengelman.shadow:com.github.johnrengelman.shadow.gradle.plugin:5.1.0
 com.google.cloud.tools:appengine-gradle-plugin:2.0.1
@@ -29,6 +30,7 @@ com.netflix.nebula:gradle-lint-plugin:16.0.2
 com.netflix.nebula:nebula-gradle-interop:1.0.11
 commons-io:commons-io:2.6
 commons-lang:commons-lang:2.6
+gradle.plugin.com.dorongold.plugins:task-tree:1.5
 javax.inject:javax.inject:1
 junit:junit:4.12
 nebula.lint:nebula.lint.gradle.plugin:16.0.2