diff --git a/README.md b/README.md
index cdd991c..b1b0efe 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,20 @@
-# Container Action Template
+# First Interaction
 
-To get started, click the `Use this template` button on this repository [which will create a new repository based on this template](https://github.blog/2019-06-06-generate-new-repositories-with-repository-templates/).
\ No newline at end of file
+An action for filtering pull requests and issues from first-time contributors.
+
+# Usage
+
+See [action.yml](action.yml)
+
+```yaml
+steps:
+- uses: actions/first-interaction@v1
+  with:
+    repo-token: ${{ secrets.GITHUB_TOKEN }}
+    issue-message: '# Mesage with markdown.\nThis is the message that will be displayed on users' first issue.'
+    pr-message: 'Message that will be displayed on users' first pr. Look, a `code block` for markdown.'
+```
+
+# License
+
+The scripts and documentation in this project are released under the [MIT License](LICENSE)
diff --git a/__tests__/main.test.ts b/__tests__/main.test.ts
deleted file mode 100644
index 7df9bad..0000000
--- a/__tests__/main.test.ts
+++ /dev/null
@@ -1,4 +0,0 @@
-describe('TODO - Add a test suite', () => {
-  it('TODO - Add a test', async () => {
-  });
-});
diff --git a/action.yml b/action.yml
index 84c30ab..ca3bfdd 100644
--- a/action.yml
+++ b/action.yml
@@ -1,10 +1,14 @@
-name: 'Container Action Template'
+name: 'First interaction'
 description: 'Get started with Container actions'
 author: 'GitHub'
-inputs: 
-  myInput:
-    description: 'Input to use'
-    default: 'world'
+inputs:
+  repo-token:
+    description: 'Token for the repo. Can be passed in using {{ secrets.GITHUB_TOKEN }}'
+    required: true
+  issue-message:
+    description: 'Comment to post on an individuals first issue'
+  pr-message:
+    description: 'Comment to post on an individuals first pull request'
 runs:
   using: 'docker'
   image: 'Dockerfile'
\ No newline at end of file
diff --git a/jest.config.js b/jest.config.js
deleted file mode 100644
index 563d4cc..0000000
--- a/jest.config.js
+++ /dev/null
@@ -1,11 +0,0 @@
-module.exports = {
-  clearMocks: true,
-  moduleFileExtensions: ['js', 'ts'],
-  testEnvironment: 'node',
-  testMatch: ['**/*.test.ts'],
-  testRunner: 'jest-circus/runner',
-  transform: {
-    '^.+\\.ts$': 'ts-jest'
-  },
-  verbose: true
-}
\ No newline at end of file
diff --git a/lib/main.js b/lib/main.js
index a72e6ac..32606ba 100644
--- a/lib/main.js
+++ b/lib/main.js
@@ -7,20 +7,135 @@ var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, ge
         step((generator = generator.apply(thisArg, _arguments || [])).next());
     });
 };
-const core = require('@actions/core');
-const github = require('@actions/github');
+var __importStar = (this && this.__importStar) || function (mod) {
+    if (mod && mod.__esModule) return mod;
+    var result = {};
+    if (mod != null) for (var k in mod) if (Object.hasOwnProperty.call(mod, k)) result[k] = mod[k];
+    result["default"] = mod;
+    return result;
+};
+Object.defineProperty(exports, "__esModule", { value: true });
+const core = __importStar(require("@actions/core"));
+const github = __importStar(require("@actions/github"));
 function run() {
     return __awaiter(this, void 0, void 0, function* () {
         try {
-            const myInput = core.getInput('myInput');
-            core.debug(`Hello ${myInput} from inside a container`);
-            // Get github context data
+            const issueMessage = core.getInput('issue-message');
+            const prMessage = core.getInput('pr-message');
+            if (!issueMessage && !prMessage) {
+                throw new Error('Action must have at least one of issue-message or pr-message set');
+            }
+            // Get client and context
+            const client = new github.GitHub(core.getInput('repo-token', { required: true }));
             const context = github.context;
-            console.log(`We can even get context data, like the repo: ${context.repo.repo}`);
+            if (context.payload.action !== 'opened') {
+                console.log('No issue or PR was opened, skipping');
+                return;
+            }
+            // Do nothing if its not a pr or issue
+            const isIssue = !!context.payload.issue;
+            if (!isIssue && !context.payload.pull_request) {
+                console.log('The event that triggered this action was not a pull request or issue, skipping.');
+                return;
+            }
+            // Do nothing if its not their first contribution
+            console.log('Checking if its the users first contribution');
+            if (!context.payload.sender) {
+                throw new Error('Internal error, no sender provided by GitHub');
+            }
+            const sender = context.payload.sender.login;
+            const issue = context.issue;
+            let firstContribution = false;
+            if (isIssue) {
+                firstContribution = yield isFirstIssue(client, issue.owner, issue.repo, sender, issue.number);
+            }
+            else {
+                firstContribution = yield isFirstPull(client, issue.owner, issue.repo, sender, issue.number);
+            }
+            if (!firstContribution) {
+                console.log('Not the users first contribution');
+                return;
+            }
+            // Do nothing if no message set for this type of contribution
+            const message = isIssue ? issueMessage : prMessage;
+            if (!message) {
+                console.log('No message provided for this type of contribution');
+                return;
+            }
+            const issueType = isIssue ? 'issue' : 'pull request';
+            // Add a comment to the appropriate place
+            console.log(`Adding message: ${message} to ${issueType} ${issue.number}`);
+            if (isIssue) {
+                yield client.issues.createComment({
+                    owner: issue.owner,
+                    repo: issue.repo,
+                    issue_number: issue.number,
+                    body: message
+                });
+            }
+            else {
+                yield client.pulls.createReview({
+                    owner: issue.owner,
+                    repo: issue.repo,
+                    pull_number: issue.number,
+                    body: message,
+                    event: 'COMMENT'
+                });
+            }
         }
         catch (error) {
             core.setFailed(error.message);
+            return;
+        }
+    });
+}
+function isFirstIssue(client, owner, repo, sender, curIssueNumber) {
+    return __awaiter(this, void 0, void 0, function* () {
+        const { status, data: issues } = yield client.issues.listForRepo({
+            owner: owner,
+            repo: repo,
+            creator: sender,
+            state: 'all'
+        });
+        if (status !== 200) {
+            throw new Error(`Received unexpected API status code ${status}`);
+        }
+        if (issues.length === 0) {
+            return true;
+        }
+        for (const issue of issues) {
+            if (issue.number < curIssueNumber && !issue.pull_request) {
+                return false;
+            }
+        }
+        return true;
+    });
+}
+// No way to filter pulls by creator
+function isFirstPull(client, owner, repo, sender, curPullNumber, page = 1) {
+    return __awaiter(this, void 0, void 0, function* () {
+        // Provide console output if we loop for a while.
+        console.log('Checking...');
+        const { status, data: pulls } = yield client.pulls.list({
+            owner: owner,
+            repo: repo,
+            per_page: 100,
+            page: page,
+            state: 'all'
+        });
+        if (status !== 200) {
+            throw new Error(`Received unexpected API status code ${status}`);
+        }
+        if (pulls.length === 0) {
+            return true;
+        }
+        for (const pull of pulls) {
+            const login = pull.user.login;
+            if (login === sender && pull.number < curPullNumber) {
+                return false;
+            }
         }
+        return yield isFirstPull(client, owner, repo, sender, curPullNumber, page + 1);
     });
 }
 run();
diff --git a/package.json b/package.json
index 8190532..37ebbc0 100644
--- a/package.json
+++ b/package.json
@@ -26,9 +26,9 @@
   "homepage": "https://github.com/actions/container-toolkit-template#readme",
   "dependencies": {
     "@actions/core": "file:toolkit/actions-core-0.0.0.tgz",
-    "@actions/io": "file:toolkit/actions-io-0.0.0.tgz",
     "@actions/exec": "file:toolkit/actions-exec-0.0.0.tgz",
     "@actions/github": "file:toolkit/actions-github-0.0.0.tgz",
+    "@actions/io": "file:toolkit/actions-io-0.0.0.tgz",
     "@actions/tool-cache": "file:toolkit/actions-tool-cache-0.0.0.tgz"
   },
   "devDependencies": {
diff --git a/src/main.ts b/src/main.ts
index 757639d..f386399 100644
--- a/src/main.ts
+++ b/src/main.ts
@@ -1,17 +1,170 @@
-const core = require('@actions/core');
-const github = require('@actions/github');
+import * as core from '@actions/core';
+import * as github from '@actions/github';
 
 async function run() {
   try {
-    const myInput = core.getInput('myInput');
-    core.debug(`Hello ${myInput} from inside a container`);
-
-    // Get github context data
+    const issueMessage: string = core.getInput('issue-message');
+    const prMessage: string = core.getInput('pr-message');
+    if (!issueMessage && !prMessage) {
+      throw new Error(
+        'Action must have at least one of issue-message or pr-message set'
+      );
+    }
+    // Get client and context
+    const client: github.GitHub = new github.GitHub(
+      core.getInput('repo-token', {required: true})
+    );
     const context = github.context;
-    console.log(`We can even get context data, like the repo: ${context.repo.repo}`)
+
+    if (context.payload.action !== 'opened') {
+      console.log('No issue or PR was opened, skipping');
+      return;
+    }
+
+    // Do nothing if its not a pr or issue
+    const isIssue: boolean = !!context.payload.issue;
+    if (!isIssue && !context.payload.pull_request) {
+      console.log(
+        'The event that triggered this action was not a pull request or issue, skipping.'
+      );
+      return;
+    }
+
+    // Do nothing if its not their first contribution
+    console.log('Checking if its the users first contribution');
+    if (!context.payload.sender) {
+      throw new Error('Internal error, no sender provided by GitHub');
+    }
+    const sender: string = context.payload.sender!.login;
+    const issue: {owner: string; repo: string; number: number} = context.issue;
+    let firstContribution: boolean = false;
+    if (isIssue) {
+      firstContribution = await isFirstIssue(
+        client,
+        issue.owner,
+        issue.repo,
+        sender,
+        issue.number
+      );
+    } else {
+      firstContribution = await isFirstPull(
+        client,
+        issue.owner,
+        issue.repo,
+        sender,
+        issue.number
+      );
+    }
+    if (!firstContribution) {
+      console.log('Not the users first contribution');
+      return;
+    }
+
+    // Do nothing if no message set for this type of contribution
+    const message: string = isIssue ? issueMessage : prMessage;
+    if (!message) {
+      console.log('No message provided for this type of contribution');
+      return;
+    }
+
+    const issueType: string = isIssue ? 'issue' : 'pull request';
+    // Add a comment to the appropriate place
+    console.log(`Adding message: ${message} to ${issueType} ${issue.number}`);
+    if (isIssue) {
+      await client.issues.createComment({
+        owner: issue.owner,
+        repo: issue.repo,
+        issue_number: issue.number,
+        body: message
+      });
+    } else {
+      await client.pulls.createReview({
+        owner: issue.owner,
+        repo: issue.repo,
+        pull_number: issue.number,
+        body: message,
+        event: 'COMMENT'
+      });
+    }
   } catch (error) {
     core.setFailed(error.message);
+    return;
+  }
+}
+
+async function isFirstIssue(
+  client: github.GitHub,
+  owner: string,
+  repo: string,
+  sender: string,
+  curIssueNumber: number
+): Promise<boolean> {
+  const {status, data: issues} = await client.issues.listForRepo({
+    owner: owner,
+    repo: repo,
+    creator: sender,
+    state: 'all'
+  });
+
+  if (status !== 200) {
+    throw new Error(`Received unexpected API status code ${status}`);
+  }
+
+  if (issues.length === 0) {
+    return true;
   }
+
+  for (const issue of issues) {
+    if (issue.number < curIssueNumber && !issue.pull_request) {
+      return false;
+    }
+  }
+
+  return true;
+}
+
+// No way to filter pulls by creator
+async function isFirstPull(
+  client: github.GitHub,
+  owner: string,
+  repo: string,
+  sender: string,
+  curPullNumber: number,
+  page: number = 1
+): Promise<boolean> {
+  // Provide console output if we loop for a while.
+  console.log('Checking...');
+  const {status, data: pulls} = await client.pulls.list({
+    owner: owner,
+    repo: repo,
+    per_page: 100,
+    page: page,
+    state: 'all'
+  });
+
+  if (status !== 200) {
+    throw new Error(`Received unexpected API status code ${status}`);
+  }
+
+  if (pulls.length === 0) {
+    return true;
+  }
+
+  for (const pull of pulls) {
+    const login: string = pull.user.login;
+    if (login === sender && pull.number < curPullNumber) {
+      return false;
+    }
+  }
+
+  return await isFirstPull(
+    client,
+    owner,
+    repo,
+    sender,
+    curPullNumber,
+    page + 1
+  );
 }
 
 run();
diff --git a/toolkit/actions-github-0.0.0.tgz b/toolkit/actions-github-0.0.0.tgz
index 4113d11..6cbe36d 100644
Binary files a/toolkit/actions-github-0.0.0.tgz and b/toolkit/actions-github-0.0.0.tgz differ