diff --git a/.clang-tidy b/.clang-tidy
new file mode 100644
index 0000000..884002b
--- /dev/null
+++ b/.clang-tidy
@@ -0,0 +1,11 @@
+Checks: 'readability-*,clang-diagnostic-*,clang-analyzer-*,-clang-analyzer-alpha*,performance-*,cppcoreguidelines-*,
+bugprone-*,modernize-*,-modernize-use-trailing-return-type'
+HeaderFilterRegex: ''
+AnalyzeTemporaryDtors: false
+CheckOptions:
+  - key: readability-identifier-naming.ClassCase
+    value: CamelCase
+  - key: readability-identifier-naming.PrivateMemberCase
+    value: camelBack
+  - key: readability-identifier-naming.PrivateMemberPrefix
+    value: '_'
\ No newline at end of file
diff --git a/src/Defines.hpp b/src/Defines.hpp
index d9102e8..4bc62e9 100644
--- a/src/Defines.hpp
+++ b/src/Defines.hpp
@@ -1,6 +1,6 @@
 #ifndef CREATURELIB_DEFINES_HPP
 #define CREATURELIB_DEFINES_HPP
 
-typedef uint8_t level_int_t;
+using level_int_t = int;
 
 #endif // CREATURELIB_DEFINES_HPP
diff --git a/src/Library/CreatureData/SpeciesVariant.cpp b/src/Library/CreatureData/SpeciesVariant.cpp
index 98f2639..510b693 100644
--- a/src/Library/CreatureData/SpeciesVariant.cpp
+++ b/src/Library/CreatureData/SpeciesVariant.cpp
@@ -16,12 +16,12 @@ namespace CreatureLib::Library {
 
     public:
         impl(const ArbUt::StringView& name, float height, float weight, uint32_t baseExperience,
-             const ArbUt::List<uint8_t>& types, Library::StatisticSet<uint16_t> baseStats,
-             const ArbUt::List<ArbUt::StringView>& talents, const ArbUt::List<ArbUt::StringView>& secretTalents,
+             ArbUt::List<uint8_t> types, Library::StatisticSet<uint16_t> baseStats,
+             ArbUt::List<ArbUt::StringView> talents, ArbUt::List<ArbUt::StringView> secretTalents,
              const LearnableAttacks* attacks, std::unordered_set<uint32_t> flags)
-            : _name(name), _height(height), _weight(weight), _baseExperience(baseExperience), _types((types)),
-              _baseStatistics(baseStats), _talents(talents), _secretTalents(secretTalents), _attacks(attacks),
-              _flags(flags){};
+            : _name(name), _height(height), _weight(weight), _baseExperience(baseExperience),
+              _types(std::move((types))), _baseStatistics(baseStats), _talents(std::move(talents)),
+              _secretTalents(std::move(secretTalents)), _attacks(attacks), _flags(std::move(flags)){};
 
         inline const ArbUt::StringView& GetName() const { return _name; }
         inline float GetHeight() const { return _height; }
@@ -39,13 +39,15 @@ namespace CreatureLib::Library {
         [[nodiscard]] const ArbUt::StringView& GetTalent(const TalentIndex& index) const {
             if (index.IsSecret() && _secretTalents.Count() > 0) {
                 auto i = index.GetIndex();
-                if (i > _secretTalents.Count())
+                if (i > _secretTalents.Count()) {
                     i = _secretTalents.Count();
+                }
                 return _secretTalents.At(i);
             }
             auto i = index.GetIndex();
-            if (i > _talents.Count())
+            if (i > _talents.Count()) {
                 i = _talents.Count();
+            }
             return _talents.At(i);
         }
         [[nodiscard]] TalentIndex GetTalentIndex(const ArbUt::StringView& talent) const {
diff --git a/src/Library/CreatureData/SpeciesVariant.hpp b/src/Library/CreatureData/SpeciesVariant.hpp
index 696ef3e..d1d086d 100644
--- a/src/Library/CreatureData/SpeciesVariant.hpp
+++ b/src/Library/CreatureData/SpeciesVariant.hpp
@@ -12,8 +12,6 @@ namespace CreatureLib::Library {
         struct impl;
         std::unique_ptr<impl> _impl;
 
-    protected:
-    private:
     public:
         /// @brief Instantiate SpeciesVariant.
         /// @param name The unique name of the variant.
diff --git a/src/Library/CreatureData/TalentIndex.hpp b/src/Library/CreatureData/TalentIndex.hpp
index e13438d..34f9d1b 100644
--- a/src/Library/CreatureData/TalentIndex.hpp
+++ b/src/Library/CreatureData/TalentIndex.hpp
@@ -2,15 +2,25 @@
 #define CREATURELIB_TALENTINDEX_HPP
 
 namespace CreatureLib::Library {
+    /// @brief Stores the index of a talent on a creature. Defines whether or not the talent is secret, and what it's
+    /// index is.
     class TalentIndex {
-        bool _secret;
-        uint8_t _index;
-
     public:
-        inline TalentIndex() noexcept : _secret(false), _index(0){};
+        inline TalentIndex() noexcept : _index(0){};
+        /// @brief Initialises a Talent Index from whether or not this is a secret talent, and it's index.
+        /// @param secret Whether or not this is a secret talent.
+        /// @param index The index of the talent on the species variant.
         inline TalentIndex(bool secret, uint8_t index) noexcept : _secret(secret), _index(index) {}
-        constexpr inline bool IsSecret() const noexcept { return _secret; }
-        constexpr inline bool GetIndex() const noexcept { return _index; }
+        /// @brief Returns whether or not this is a secret talent.
+        /// @return Whether or not this is a secret talent.
+        [[nodiscard]] constexpr inline bool IsSecret() const noexcept { return _secret; }
+        /// @brief Returns the index of the talent on the species variant.
+        /// @return The index of the talent on the species variant.
+        [[nodiscard]] constexpr inline uint8_t GetIndex() const noexcept { return _index; }
+
+    private:
+        bool _secret = false;
+        uint8_t _index;
     };
 }