diff --git a/build.gradle b/build.gradle
index 67e1e27f71..b6d0483afe 100644
--- a/build.gradle
+++ b/build.gradle
@@ -8,8 +8,8 @@ apply from: rootProject.file("gradle/experimental.gradle")
 def rootModule = "kotlinx.coroutines"
 def coreModule = "kotlinx-coroutines-core"
 // Not applicable for Kotlin plugin
-def sourceless = ['kotlinx.coroutines', 'site', 'kotlinx-coroutines-bom']
-def internal = ['kotlinx.coroutines', 'site', 'benchmarks', 'js-stub', 'stdlib-stubs']
+def sourceless = ['kotlinx.coroutines', 'site', 'kotlinx-coroutines-bom', 'publication-validator']
+def internal = ['kotlinx.coroutines', 'site', 'benchmarks', 'js-stub', 'stdlib-stubs', 'publication-validator']
 // Not published
 def unpublished = internal + ['example-frontend-js', 'android-unit-tests']
 
@@ -133,8 +133,7 @@ allprojects {
 
 apply plugin: "binary-compatibility-validator"
 apiValidation {
-    ignoredProjects += ["stdlib-stubs", "benchmarks", "site",
-                        "kotlinx-coroutines-bom", "android-unit-tests", "js-stub"]
+    ignoredProjects += unpublished + ["kotlinx-coroutines-bom"]
     ignoredPackages += "kotlinx.coroutines.internal"
 }
 
diff --git a/publication-validator/README.md b/publication-validator/README.md
index 7437513afa..a60ff00e3c 100644
--- a/publication-validator/README.md
+++ b/publication-validator/README.md
@@ -1,9 +1,13 @@
 # Publication validator
 
-This is a supplementary subproject of kotlinx.coroutines to test its publication correctness.
+This is a supplementary subproject of kotlinx.coroutines that provides a new
+task, `testPublishing`, to test its publication correctness.
 
-It is used as part of "Dependency validation" build chain on TeamCity:
-* kotlinx.corotoutines are built with `publishToMavenLocal`
-* kotlinx.coroutines are built with `npmPublish -PdryRun=true` to have a packed publication
+The tests are the following:
 * `NpmPublicationValidator` tests that version of NPM artifact is correct and that it has neither source nor package dependencies on atomicfu
 * `MavenPublicationValidator` depends on the published artifacts and tests artifacts binary content and absence of atomicfu in the classpath
+
+To test publication, one needs to run gradle with `-PdryRun=true`, and the
+task that actually does the testing is `publication-validator:test`.
+`-PdryRun` affects `npmPublish` so that it only provides a packed publication
+and does not in fact attempt to send the build for publication.
diff --git a/publication-validator/build.gradle b/publication-validator/build.gradle
index 993572f6b5..a22ccf46d2 100644
--- a/publication-validator/build.gradle
+++ b/publication-validator/build.gradle
@@ -2,16 +2,7 @@
  * Copyright 2016-2020 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license.
  */
 
-plugins {
-    id 'org.jetbrains.kotlin.jvm' version '1.3.30'
-}
-
-def deployVersion = properties['DeployVersion']
-ext.coroutines_version = deployVersion
-println "Checking coroutines version $coroutines_version"
-
-group 'org.jetbrains.kotlinx'
-version '1.0-SNAPSHOT'
+apply from: rootProject.file("gradle/compile-jvm.gradle")
 
 repositories {
     mavenLocal()
@@ -19,17 +10,28 @@ repositories {
 }
 
 dependencies {
-    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk8"
+    testCompile "org.jetbrains.kotlin:kotlin-stdlib-jdk8"
     testCompile 'junit:junit:4.12'
     testCompile 'org.apache.commons:commons-compress:1.18'
     testCompile 'com.google.code.gson:gson:2.8.5'
-    testCompile "org.jetbrains.kotlinx:kotlinx-coroutines-core:$coroutines_version"
-    testCompile "org.jetbrains.kotlinx:kotlinx-coroutines-android:$coroutines_version"
+    testCompile project(':kotlinx-coroutines-core')
+    testCompile project(':kotlinx-coroutines-android')
 }
 
-compileKotlin {
-    kotlinOptions.jvmTarget = "1.8"
-}
 compileTestKotlin {
     kotlinOptions.jvmTarget = "1.8"
 }
+
+def dryRunNpm = properties['dryRun']
+
+test {
+    onlyIf { dryRunNpm == "true" } // so that we don't accidentally publish anything, especially before the test
+    doFirst { println "Verifying publishing version $version" } // all modules share the same version
+    environment "projectRoot", project.rootDir
+    environment "deployVersion", version
+    if (dryRunNpm == "true") { // `onlyIf` only affects execution of the task, not the dependency subtree
+        dependsOn(project(':').getTasksByName("publishNpm", true) +
+                project(':').getTasksByName("publishToMavenLocal", true))
+        dependsOn.remove(project(':').getTasksByName("dokka", true))
+    }
+}
diff --git a/publication-validator/gradle.properties b/publication-validator/gradle.properties
deleted file mode 100644
index aefd041a54..0000000000
--- a/publication-validator/gradle.properties
+++ /dev/null
@@ -1,5 +0,0 @@
-#
-# Copyright 2016-2020 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license.
-#
-
-kotlin.code.style=official
diff --git a/publication-validator/gradle/wrapper/gradle-wrapper.jar b/publication-validator/gradle/wrapper/gradle-wrapper.jar
deleted file mode 100644
index 94336fcae9..0000000000
Binary files a/publication-validator/gradle/wrapper/gradle-wrapper.jar and /dev/null differ
diff --git a/publication-validator/gradle/wrapper/gradle-wrapper.properties b/publication-validator/gradle/wrapper/gradle-wrapper.properties
deleted file mode 100644
index ecc69863ed..0000000000
--- a/publication-validator/gradle/wrapper/gradle-wrapper.properties
+++ /dev/null
@@ -1,6 +0,0 @@
-#Wed May 08 12:45:59 MSK 2019
-distributionBase=GRADLE_USER_HOME
-distributionPath=wrapper/dists
-zipStoreBase=GRADLE_USER_HOME
-zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-4.10.3-all.zip
diff --git a/publication-validator/gradlew b/publication-validator/gradlew
deleted file mode 100755
index cccdd3d517..0000000000
--- a/publication-validator/gradlew
+++ /dev/null
@@ -1,172 +0,0 @@
-#!/usr/bin/env sh
-
-##############################################################################
-##
-##  Gradle start up script for UN*X
-##
-##############################################################################
-
-# Attempt to set APP_HOME
-# Resolve links: $0 may be a link
-PRG="$0"
-# Need this for relative symlinks.
-while [ -h "$PRG" ] ; do
-    ls=`ls -ld "$PRG"`
-    link=`expr "$ls" : '.*-> \(.*\)$'`
-    if expr "$link" : '/.*' > /dev/null; then
-        PRG="$link"
-    else
-        PRG=`dirname "$PRG"`"/$link"
-    fi
-done
-SAVED="`pwd`"
-cd "`dirname \"$PRG\"`/" >/dev/null
-APP_HOME="`pwd -P`"
-cd "$SAVED" >/dev/null
-
-APP_NAME="Gradle"
-APP_BASE_NAME=`basename "$0"`
-
-# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
-DEFAULT_JVM_OPTS=""
-
-# Use the maximum available, or set MAX_FD != -1 to use that value.
-MAX_FD="maximum"
-
-warn () {
-    echo "$*"
-}
-
-die () {
-    echo
-    echo "$*"
-    echo
-    exit 1
-}
-
-# OS specific support (must be 'true' or 'false').
-cygwin=false
-msys=false
-darwin=false
-nonstop=false
-case "`uname`" in
-  CYGWIN* )
-    cygwin=true
-    ;;
-  Darwin* )
-    darwin=true
-    ;;
-  MINGW* )
-    msys=true
-    ;;
-  NONSTOP* )
-    nonstop=true
-    ;;
-esac
-
-CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
-
-# Determine the Java command to use to start the JVM.
-if [ -n "$JAVA_HOME" ] ; then
-    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
-        # IBM's JDK on AIX uses strange locations for the executables
-        JAVACMD="$JAVA_HOME/jre/sh/java"
-    else
-        JAVACMD="$JAVA_HOME/bin/java"
-    fi
-    if [ ! -x "$JAVACMD" ] ; then
-        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
-
-Please set the JAVA_HOME variable in your environment to match the
-location of your Java installation."
-    fi
-else
-    JAVACMD="java"
-    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
-
-Please set the JAVA_HOME variable in your environment to match the
-location of your Java installation."
-fi
-
-# Increase the maximum file descriptors if we can.
-if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then
-    MAX_FD_LIMIT=`ulimit -H -n`
-    if [ $? -eq 0 ] ; then
-        if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
-            MAX_FD="$MAX_FD_LIMIT"
-        fi
-        ulimit -n $MAX_FD
-        if [ $? -ne 0 ] ; then
-            warn "Could not set maximum file descriptor limit: $MAX_FD"
-        fi
-    else
-        warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
-    fi
-fi
-
-# For Darwin, add options to specify how the application appears in the dock
-if $darwin; then
-    GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
-fi
-
-# For Cygwin, switch paths to Windows format before running java
-if $cygwin ; then
-    APP_HOME=`cygpath --path --mixed "$APP_HOME"`
-    CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
-    JAVACMD=`cygpath --unix "$JAVACMD"`
-
-    # We build the pattern for arguments to be converted via cygpath
-    ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
-    SEP=""
-    for dir in $ROOTDIRSRAW ; do
-        ROOTDIRS="$ROOTDIRS$SEP$dir"
-        SEP="|"
-    done
-    OURCYGPATTERN="(^($ROOTDIRS))"
-    # Add a user-defined pattern to the cygpath arguments
-    if [ "$GRADLE_CYGPATTERN" != "" ] ; then
-        OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
-    fi
-    # Now convert the arguments - kludge to limit ourselves to /bin/sh
-    i=0
-    for arg in "$@" ; do
-        CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
-        CHECK2=`echo "$arg"|egrep -c "^-"`                                 ### Determine if an option
-
-        if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then                    ### Added a condition
-            eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
-        else
-            eval `echo args$i`="\"$arg\""
-        fi
-        i=$((i+1))
-    done
-    case $i in
-        (0) set -- ;;
-        (1) set -- "$args0" ;;
-        (2) set -- "$args0" "$args1" ;;
-        (3) set -- "$args0" "$args1" "$args2" ;;
-        (4) set -- "$args0" "$args1" "$args2" "$args3" ;;
-        (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
-        (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
-        (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
-        (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
-        (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
-    esac
-fi
-
-# Escape application args
-save () {
-    for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done
-    echo " "
-}
-APP_ARGS=$(save "$@")
-
-# Collect all arguments for the java command, following the shell quoting and substitution rules
-eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS"
-
-# by default we should be in the correct project dir, but when run from Finder on Mac, the cwd is wrong
-if [ "$(uname)" = "Darwin" ] && [ "$HOME" = "$PWD" ]; then
-  cd "$(dirname "$0")"
-fi
-
-exec "$JAVACMD" "$@"
diff --git a/publication-validator/gradlew.bat b/publication-validator/gradlew.bat
deleted file mode 100644
index f9553162f1..0000000000
--- a/publication-validator/gradlew.bat
+++ /dev/null
@@ -1,84 +0,0 @@
-@if "%DEBUG%" == "" @echo off
-@rem ##########################################################################
-@rem
-@rem  Gradle startup script for Windows
-@rem
-@rem ##########################################################################
-
-@rem Set local scope for the variables with windows NT shell
-if "%OS%"=="Windows_NT" setlocal
-
-set DIRNAME=%~dp0
-if "%DIRNAME%" == "" set DIRNAME=.
-set APP_BASE_NAME=%~n0
-set APP_HOME=%DIRNAME%
-
-@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
-set DEFAULT_JVM_OPTS=
-
-@rem Find java.exe
-if defined JAVA_HOME goto findJavaFromJavaHome
-
-set JAVA_EXE=java.exe
-%JAVA_EXE% -version >NUL 2>&1
-if "%ERRORLEVEL%" == "0" goto init
-
-echo.
-echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
-echo.
-echo Please set the JAVA_HOME variable in your environment to match the
-echo location of your Java installation.
-
-goto fail
-
-:findJavaFromJavaHome
-set JAVA_HOME=%JAVA_HOME:"=%
-set JAVA_EXE=%JAVA_HOME%/bin/java.exe
-
-if exist "%JAVA_EXE%" goto init
-
-echo.
-echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
-echo.
-echo Please set the JAVA_HOME variable in your environment to match the
-echo location of your Java installation.
-
-goto fail
-
-:init
-@rem Get command-line arguments, handling Windows variants
-
-if not "%OS%" == "Windows_NT" goto win9xME_args
-
-:win9xME_args
-@rem Slurp the command line arguments.
-set CMD_LINE_ARGS=
-set _SKIP=2
-
-:win9xME_args_slurp
-if "x%~1" == "x" goto execute
-
-set CMD_LINE_ARGS=%*
-
-:execute
-@rem Setup the command line
-
-set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
-
-@rem Execute Gradle
-"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
-
-:end
-@rem End local scope for the variables with windows NT shell
-if "%ERRORLEVEL%"=="0" goto mainEnd
-
-:fail
-rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
-rem the _cmd.exe /c_ return code!
-if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
-exit /b 1
-
-:mainEnd
-if "%OS%"=="Windows_NT" endlocal
-
-:omega
diff --git a/publication-validator/settings.gradle b/publication-validator/settings.gradle
deleted file mode 100644
index 552030630d..0000000000
--- a/publication-validator/settings.gradle
+++ /dev/null
@@ -1,8 +0,0 @@
-pluginManagement {
-    repositories {
-        mavenLocal()
-        mavenCentral()
-        maven { url 'https://plugins.gradle.org/m2/' }
-    }
-}
-rootProject.name = 'kotlinx-coroutines-validator'
diff --git a/publication-validator/src/test/kotlin/kotlinx/coroutines/tools/NpmPublicationValidator.kt b/publication-validator/src/test/kotlin/kotlinx/coroutines/tools/NpmPublicationValidator.kt
index 052d745bb8..52479d56ef 100644
--- a/publication-validator/src/test/kotlin/kotlinx/coroutines/tools/NpmPublicationValidator.kt
+++ b/publication-validator/src/test/kotlin/kotlinx/coroutines/tools/NpmPublicationValidator.kt
@@ -12,8 +12,8 @@ import java.util.zip.*
 import org.junit.Assert.*
 
 class NpmPublicationValidator {
-    private val VERSION = System.getenv("DeployVersion")
-    private val BUILD_DIR = System.getenv("teamcity.build.checkoutDir")
+    private val VERSION = System.getenv("deployVersion")!!
+    private val BUILD_DIR = System.getenv("projectRoot")!!
     private val NPM_ARTIFACT = "$BUILD_DIR/kotlinx-coroutines-core/build/npm/kotlinx-coroutines-core-$VERSION.tgz"
 
     @Test
diff --git a/settings.gradle b/settings.gradle
index 5bce054f77..15d377d3f9 100644
--- a/settings.gradle
+++ b/settings.gradle
@@ -40,3 +40,5 @@ module('ui/kotlinx-coroutines-swing')
 
 module('js/js-stub')
 module('js/example-frontend-js')
+
+module('publication-validator')