diff --git a/packages/core/__tests__/lib.test.ts b/packages/core/__tests__/lib.test.ts
index 3917550c..012d0963 100644
--- a/packages/core/__tests__/lib.test.ts
+++ b/packages/core/__tests__/lib.test.ts
@@ -3,8 +3,28 @@
 import * as core from '../src/lib'
 
 describe('@actions/core', () => {
-    it('needs tests', () => {
-        
+    it('tests exportVariable', () => {
+        // TODO
+    });
+
+    it('tests getInput', () => {
+        // TODO
+    });
+
+    it('tests setFailure', () => {
+        // TODO
+    });
+
+    it('tests error', () => {
+        // TODO
+    });
+
+    it('tests warning', () => {
+        // TODO
+    });
+
+    it('tests debug', () => {
+        // TODO
     });
 });
 
diff --git a/packages/core/package.json b/packages/core/package.json
index 1a922ff2..52200e5b 100644
--- a/packages/core/package.json
+++ b/packages/core/package.json
@@ -7,7 +7,7 @@
     "actions"
   ],
   "author": "Bryan MacFarlane <bryanmac@microsoft.com>",
-  "homepage": "https://github.com/actions/toolkit/tree/master/packages/io",
+  "homepage": "https://github.com/actions/toolkit/tree/master/packages/core",
   "license": "MIT",
   "main": "lib/lib.js",
   "directories": {
diff --git a/packages/core/src/internal.ts b/packages/core/src/internal.ts
index 1d2e867c..38a7fd8e 100644
--- a/packages/core/src/internal.ts
+++ b/packages/core/src/internal.ts
@@ -10,7 +10,7 @@ import os = require('os');
  *   
  * Examples:
  *   ##[warning]This is the user warning message
- *   ##[set-secret name=mypassword]definatelyNotAPassword!
+ *   ##[set-secret name=mypassword]definitelyNotAPassword!
  */
 export function _issueCommand(command: string, properties: {[key: string]: string}, message: string) {
     var cmd = new _Command(command, properties, message);
@@ -67,7 +67,6 @@ export class _Command {
 }
 
 export function _commandFromString(commandLine: string) {
-    var preLen = CMD_PREFIX.length;
     var lbPos = commandLine.indexOf('[');
     var rbPos = commandLine.indexOf(']');
     if (lbPos == -1 || rbPos == -1 || rbPos - lbPos < 3) {
diff --git a/packages/core/src/lib.ts b/packages/core/src/lib.ts
index 6b662560..68e97094 100644
--- a/packages/core/src/lib.ts
+++ b/packages/core/src/lib.ts
@@ -3,33 +3,53 @@ import intm = require('./internal');
 import process = require('process');
 
 /**
- * sets env variable for this action and future actions in the job
- * @param name the name of the variable to set
- * @param val the value of the variable
+ * Interface for exportVariable options
  */
-export function setVariable(name: string, val: string) {
+export interface ExportOptions {
+    /** Optional. Whether the variable should be marked as secret (will be masked from logs). Defaults to false */
+    isSecret?: boolean;
+}
+
+/**
+ * sets env variable for this action and future actions in the job
+ *
+ * @param name      the name of the variable to set
+ * @param val       the value of the variable
+ * @param options   optional. See ExportOptions.
+ */
+export function exportVariable(name: string, val: string, options?: ExportOptions): void {
+    if (options && options.isSecret) {
+        intm._issueCommand('set-secret', {'name': name}, val);
+    }
     process.env[name] = val;
     intm._issueCommand('set-variable', {'name': name}, val);
 }
 
 /**
- * sets a variable which will get masked from logs
- * @param name name of the secret variable 
- * @param val value of the secret variable
+ * Interface for getInput options
  */
-export function setSecret(name: string, val: string) {
-    intm._issueCommand('set-secret', {'name': name}, val);
-    setVariable(name, val);
-} 
+export interface InputOptions {
+    /** Optional. Whether the input is required. If required and not present, will throw. Defaults to false */
+    required?: boolean;
+}
+
+/**
+ * Gets the value of an input.  The value is also trimmed.
+ * 
+ * @param     name     name of the input to get
+ * @param     options  optional. See InputOptions.
+ * @returns   string
+ */
+export function getInput(name: string, options?: InputOptions): string | undefined {
+    // TODO - how are we passing in actions inputs?
+    return '';
+}
 
-//-----------------------------------------------------------------------
-// Results
-//-----------------------------------------------------------------------
 /**
  * fail the action
  * @param message 
  */
-export function fail(message: string) {
+export function setFailure(message: string): void {
     process.exitCode = im.ExitCode.Failure;
     error(message);
 }
@@ -38,19 +58,16 @@ export function fail(message: string) {
 // Logging Commands
 // https://github.com/github/dreamlifter/blob/master/docs/actions-model.md#logging-commands
 //
-// error and warning issues do not take FileDetails because while possible,
-// that's typically reserved for the agent and the problem matchers.
-//
 //-----------------------------------------------------------------------
 
-export function addPath(path: string) {
-    intm._issueCommand('add-path', {}, path);
-}
-
 export function error(message: string) {
     intm._issue('error', message);
 }
 
 export function warning(message: string) {
     intm._issue('warning', message);
+}
+
+export function debug(message: string): void {
+    intm._issue('debug', message);
 }
\ No newline at end of file