new solution

3.js

@@ -1,20 +1,39 @@
-export function canExecuteFastAttack(knightIsAwake) {
-
-}
-
+var knightIsAwake = false;
+var archerIsAwake = true;
+var prisonerIsAwake = false;
 export function canSpy(knightIsAwake, archerIsAwake, prisonerIsAwake) {
-
+  return knightIsAwake || archerIsAwake || prisonerIsAwake;
 }
 
+/**
+ * You'll get caught by the archer if you signal while they're awake.
+ *
+ * @param {boolean} archerIsAwake
+ * @param {boolean} prisonerIsAwake
+ *
+ * @returns {boolean} Whether or not you can send a signal to the prisoner.
+ */
+var archerIsAwake = false;
+var prisonerIsAwake = true;
 export function canSignalPrisoner(archerIsAwake, prisonerIsAwake) {
-
+  return prisonerIsAwake && !archerIsAwake;
 }
 
-export function canFreePrisoner( 
+/**
+ * The final stage in the plan: freeing Annalyn's best friend.
+ *
+ * @param {boolean} knightIsAwake
+ * @param {boolean} archerIsAwake
+ * @param {boolean} prisonerIsAwake
+ * @param {boolean} petDogIsPresent
+ *
+ * @returns {boolean} Whether or not you can free Annalyn's friend.
+ */
+export function canFreePrisoner(
   knightIsAwake,
   archerIsAwake,
   prisonerIsAwake,
   petDogIsPresent
- ) {
-
+) {
+  return (!archerIsAwake && petDogIsPresent) || (prisonerIsAwake && !archerIsAwake && !knightIsAwake);
 }