diff --git a/vector/myvector.h b/vector/myvector.h
index 25e21e4..fb054c0 100644
--- a/vector/myvector.h
+++ b/vector/myvector.h
@@ -5,43 +5,138 @@
 #include <stdint.h>
 #include <threads.h>
 
+/**
+ * @brief Vector structure.
+ */
 typedef struct vec {
-	void *data;
-	size_t elem_size;
-	size_t size;
-	size_t capacity;
-	mtx_t lock;
+	void *data;		  /**< Pointer to raw data array */
+	size_t elem_size; /**< Size of each element in bytes */
+	size_t size;	  /**< Number of elements currently stored */
+	size_t capacity;  /**< Allocated capacity (number of elements) */
+	mtx_t lock;		  /**< Mutex for thread safety */
 } vec_s;
 
+/**
+ * @brief Create a new vector.
+ *
+ * @param initial_capacity Initial number of elements to allocate.
+ * @param element_size Size of each element in bytes.
+ * @return Pointer to the new vector, or NULL on failure.
+ */
 vec_s *vec_new(size_t initial_capacity, size_t element_size);
 
+/**
+ * @brief Get the number of elements stored in the vector.
+ *
+ * @param vec Vector.
+ * @return Number of elements, or 0 if NULL.
+ */
 size_t vec_size(vec_s *vec);
 
+/**
+ * @brief Get the allocated capacity of the vector.
+ *
+ * @param vec Vector.
+ * @return Capacity (number of elements), or 0 if NULL.
+ */
 size_t vec_cap(vec_s *vec);
 
+/**
+ * @brief Shrink the allocated memory to fit the current size.
+ *
+ * @param vec Vector.
+ * @return 0 on success, -1 on failure.
+ */
 int vec_shrink(vec_s *vec);
 
+/**
+ * @brief Push a new element at the end of the vector.
+ *
+ * @param vec Vector.
+ * @param elem Pointer to the element to add.
+ * @return 0 on success, -1 on failure.
+ */
 int vec_push(vec_s *vec, void *elem);
 
-// free the returned value
+/**
+ * @brief Pop the last element from the vector.
+ *
+ * @param vec Vector.
+ * @return Pointer to the removed element or NULL on failure.
+ * @note Free after use.
+ */
 void *vec_pop(vec_s *vec);
 
+/**
+ * @brief Insert an element at a specific position.
+ *
+ * @param vec Vector.
+ * @param index Position where to insert.
+ * @param value Pointer to the element to insert.
+ * @return 0 on success, -1 on failure.
+ */
 int vec_insert(vec_s *vec, size_t index, void *value);
 
+/**
+ * @brief Remove an element at a specific position.
+ *
+ * @param vec Vector.
+ * @param index Index of the element to remove.
+ * @return 0 on success, -1 on failure.
+ */
 int vec_remove(vec_s *vec, size_t index);
 
-// free the returned value
+/**
+ * @brief Get a copy of an element at the given position.
+ *
+ * @param vec Vector.
+ * @param index Index of the element.
+ * @return Pointer to the element or NULL on failure.
+ * @note Free after use.
+ */
 void *vec_get(vec_s *vec, size_t index);
 
+/**
+ * @brief Set the value of an element at the given position.
+ *
+ * @param vec Vector.
+ * @param index Index of the element.
+ * @param value Pointer to the new value.
+ * @return 0 on success, -1 on failure.
+ */
 int vec_set(vec_s *vec, size_t index, void *value);
 
+/**
+ * @brief Clear the vector without freeing its memory.
+ *
+ * @param vec Vector.
+ * @return 0 on success, -1 on failure.
+ */
 int vec_clear(vec_s *vec);
 
+/**
+ * @brief Iterate over all elements of the vector.
+ *
+ * @param vec Vector.
+ * @param fefn Callback function: receives index and element pointer.
+ * @return 0 on success, -1 on failure.
+ */
 int vec_foreach(vec_s *vec, void (*fefn)(size_t index, void *elem));
 
-/* Wrapper around qsort() */
+/**
+ * @brief Sort the vector using qsort().
+ *
+ * @param vec Vector.
+ * @param cmp Comparison function.
+ * @return 0 on success, -1 on failure.
+ */
 int vec_sort(vec_s *vec, int (*cmp)(const void *a, const void *b));
 
+/**
+ * @brief Free the vector and its resources.
+ *
+ * @param vec Vector.
+ */
 void vec_free(vec_s *vec);
 
-#endif
+#endif /* MYCLIB_VECTOR_H */