diff --git a/.github/workflows/integration.yml b/.github/workflows/integration.yml
index 2cfc8827e..b43f4e766 100644
--- a/.github/workflows/integration.yml
+++ b/.github/workflows/integration.yml
@@ -8,9 +8,10 @@ jobs:
       - id: output-set
         uses: actions/github-script@master
         with:
-          script: return 'test'
+          script: return core.getInput('input-value')
           result-encoding: string
+          input-value: output
       - run: |
-          if [[ "${{steps.output-set.outputs.result}}" != "test" ]]; then
+          if [[ "${{steps.output-set.outputs.result}}" != "output" ]]; then
             exit 1
           fi
diff --git a/README.md b/README.md
index cd5c617e7..5b94ec5a6 100644
--- a/README.md
+++ b/README.md
@@ -11,6 +11,7 @@ be provided:
   [octokit/rest.js](https://github.com/octokit/rest.js) client
 - `context` An object containing the [context of the workflow
   run](https://github.com/actions/toolkit/tree/master/packages/github)
+- `core` A reference to the [@actions/core](https://github.com/actions/toolkit/tree/master/packages/core) package
 
 Since the `script` is just a function body, these values will already be
 defined, so you don't have to (see examples below).
diff --git a/dist/index.js b/dist/index.js
index 68a5dc52c..5d7c55b64 100644
--- a/dist/index.js
+++ b/dist/index.js
@@ -9178,7 +9178,7 @@ async function main() {
     const github = new lib_github.GitHub(token, opts);
     const script = Object(core.getInput)('script', { required: true });
     // Using property/value shorthand on `require` (e.g. `{require}`) causes compilatin errors.
-    const result = await callAsyncFunction({ require: __webpack_require__(875), github, context: lib_github.context }, script);
+    const result = await callAsyncFunction({ require: __webpack_require__(875), github, context: lib_github.context, core: core }, script);
     let encoding = Object(core.getInput)('result-encoding');
     encoding = encoding ? encoding : 'json';
     let output;
diff --git a/src/main.ts b/src/main.ts
index 89bf9e4fe..00e95a1fe 100644
--- a/src/main.ts
+++ b/src/main.ts
@@ -19,7 +19,7 @@ async function main() {
 
   // Using property/value shorthand on `require` (e.g. `{require}`) causes compilatin errors.
   const result = await callAsyncFunction(
-    {require: require, github, context},
+    {require: require, github, context, core},
     script
   )