diff --git a/src/main/java/com/maradona/backend/controllers/api/EmployeeController.java b/src/main/java/com/maradona/backend/controllers/api/EmployeeController.java
index 1d1855c..be1ba78 100644
--- a/src/main/java/com/maradona/backend/controllers/api/EmployeeController.java
+++ b/src/main/java/com/maradona/backend/controllers/api/EmployeeController.java
@@ -26,7 +26,7 @@ import com.maradona.backend.services.details.EmployeeDetails;
  * - GET /api/employee/all
  * - GET /api/employee/from-skill
  * - GET /api/employee/skill/all
- * - POST /api/employee/skill/protoype
+ * - POST /api/employee/skill/prototype
  * - PUT /api/employee/skill/level
  * - DELETE /api/employee/skill
  * 
@@ -107,8 +107,8 @@ public class EmployeeController {
    * @see com.maradona.backend.entities.Employee
    * @see com.maradona.backend.entities.SecondarySkill
    */
-  @PostMapping("/skill/protoype")
-  public ResponseEntity<Void> postSkillProtoype(@RequestBody SkillPrototype skillPrototype) {
+  @PostMapping("/skill/prototype")
+  public ResponseEntity<Void> postSkillPrototype(@RequestBody SkillPrototype skillPrototype) {
     employeeActions.addSecondarySkillToEmployee(user, skillPrototype);
     return ResponseEntity.status(HttpStatus.CREATED).build();
   }
diff --git a/src/main/java/com/maradona/backend/controllers/page/SkillsPage.java b/src/main/java/com/maradona/backend/controllers/page/SkillsPage.java
index 207c98b..d5164c4 100644
--- a/src/main/java/com/maradona/backend/controllers/page/SkillsPage.java
+++ b/src/main/java/com/maradona/backend/controllers/page/SkillsPage.java
@@ -82,11 +82,11 @@ public class SkillsPage {
    * 
    * Attributes that can be used by the frontend are a PrimarySkill object
    * "primarySkill", a SecondarySkill object "secondarySkill" and a
-   * SkillProtoype object "skillProtoype".
+   * SkillPrototype object "skillPrototype".
    * 
-   * The skillProtoype object contains the data needed to add a skill to the user
+   * The skillPrototype object contains the data needed to add a skill to the user
    * profile.
-   * To add it to a user profile, POST to /api/employee/skill/protoype.
+   * To add it to a user profile, POST to /api/employee/skill/prototype.
    *
    * @param model The model with the data to be displayed
    * @return The add skill page template
@@ -98,7 +98,7 @@ public class SkillsPage {
   public String addSkill(Model model) {
     // TODO: Make sure it returns the correct initail data for secondary skills
     model.addAttribute("primarySkills", primarySkillDetails.getAllPrimarySkills());
-    model.addAttribute("skillProtoype", new SkillPrototype());
+    model.addAttribute("skillPrototype", new SkillPrototype());
     return "/pages/skills/add";
   }
 
diff --git a/src/main/java/com/maradona/backend/dto/SkillList.java b/src/main/java/com/maradona/backend/dto/SkillList.java
index 74f721a..6ef8630 100644
--- a/src/main/java/com/maradona/backend/dto/SkillList.java
+++ b/src/main/java/com/maradona/backend/dto/SkillList.java
@@ -5,27 +5,64 @@ import com.maradona.backend.entities.SecondarySkill;
 import org.springframework.data.util.Pair;
 import java.util.List;
 
+/**
+ * This classs provides an easier way to send a list of skills with levels to
+ * the frontend.
+ */
 public class SkillList {
+  /**
+   * The primary skill.
+   */
   private PrimarySkill primarySkill;
+
+  /**
+   * The list of secondary skills with their levels.
+   */
   private List<Pair<SecondarySkill, Integer>> secondarySkills;
 
+  /**
+   * Creates a new SkillList object.
+   * 
+   * @param primarySkill    The primary skill.
+   * @param secondarySkills The list of secondary skills with their levels.
+   */
   public SkillList(PrimarySkill primarySkill, List<Pair<SecondarySkill, Integer>> secondarySkills) {
     this.primarySkill = primarySkill;
     this.secondarySkills = secondarySkills;
   }
 
+  /**
+   * Returns the primary skill.
+   * 
+   * @return The primary skill.
+   */
   public PrimarySkill getPrimarySkill() {
     return primarySkill;
   }
 
+  /**
+   * Sets the primary skill.
+   * 
+   * @param primarySkill The primary skill.
+   */
   public void setPrimarySkill(PrimarySkill primarySkill) {
     this.primarySkill = primarySkill;
   }
 
+  /**
+   * Returns the list of secondary skills with their levels.
+   * 
+   * @return The list of secondary skills with their levels.
+   */
   public List<Pair<SecondarySkill, Integer>> getSecondarySkills() {
     return secondarySkills;
   }
 
+  /**
+   * Sets the list of secondary skills with their levels.
+   * 
+   * @param secondarySkills The list of secondary skills with their levels.
+   */
   public void setSecondarySkills(List<Pair<SecondarySkill, Integer>> secondarySkills) {
     this.secondarySkills = secondarySkills;
   }
diff --git a/src/main/java/com/maradona/backend/dto/SkillPrototype.java b/src/main/java/com/maradona/backend/dto/SkillPrototype.java
index 0feb9de..8295023 100644
--- a/src/main/java/com/maradona/backend/dto/SkillPrototype.java
+++ b/src/main/java/com/maradona/backend/dto/SkillPrototype.java
@@ -1,30 +1,73 @@
 package com.maradona.backend.dto;
 
+/**
+ * This class provides an easy way to receive raw data that can be usd to build
+ * a skill from the frontend.
+ */
 public class SkillPrototype {
+  /**
+   * The primary skill ID.
+   */
   private Long psid;
+
+  /**
+   * The secondary skill ID.
+   */
   private Long ssid;
+
+  /**
+   * The level of the skill.
+   */
   private Integer level;
 
+  /**
+   * Returns the primary skill ID.
+   */
   public Long getPsid() {
     return psid;
   }
 
+  /**
+   * Sets the primary skill ID.
+   * 
+   * @param psid The primary skill ID to set.
+   */
   public void setPsid(Long psid) {
     this.psid = psid;
   }
 
+  /**
+   * Returns the secondary skill ID.
+   * 
+   * @return The secondary skill ID.
+   */
   public Long getSsid() {
     return ssid;
   }
 
+  /**
+   * Sets the secondary skill ID.
+   * 
+   * @param ssid The secondary skill ID to set.
+   */
   public void setSsid(Long ssid) {
     this.ssid = ssid;
   }
 
+  /**
+   * Returns the level of the skill.
+   * 
+   * @return The level of the skill.
+   */
   public Integer getLevel() {
     return level;
   }
 
+  /**
+   * Sets the level of the skill.
+   * 
+   * @param level The level of the skill to set.
+   */
   public void setLevel(Integer level) {
     this.level = level;
   }