Add xmldocs

src/Discord.Net.Commands/Attributes/OverrideTypeReaderAttribute.cs

@@ -18,7 +18,7 @@ namespace Discord.Commands
         public OverrideTypeReaderAttribute(Type overridenTypeReader)
         {
             if (!_typeReaderTypeInfo.IsAssignableFrom(overridenTypeReader.GetTypeInfo()))
-                throw new ArgumentException($"{nameof(overridenTypeReader)} must inherit from {nameof(TypeReader)}");
+                throw new ArgumentException($"{nameof(overridenTypeReader)} must inherit from {nameof(TypeReader)}.");
             
             TypeReader = overridenTypeReader;
         }

src/Discord.Net.Commands/Attributes/PreconditionAttribute.cs

@@ -9,7 +9,7 @@ namespace Discord.Commands
     {
         /// <summary> Specify a group that this precondition belongs to. </summary>
         /// <remarks>
-            /// Preconditions of the same group require only one
+            /// <see cref="Preconditions"/> of the same group require only one
             /// of the preconditions to pass in order to be successful (A || B). 
             /// Specifying <see cref="Group"/> = <see langword="null"/>
             /// or not at all will require *all* preconditions to pass, just like normal (A &amp;&amp; B).

src/Discord.Net.Commands/Attributes/Preconditions/RequireBotPermissionAttribute.cs

@@ -50,9 +50,9 @@ namespace Discord.Commands
             if (GuildPermission.HasValue)
             {
                 if (guildUser == null)
-                    return PreconditionResult.FromError("Command must be used in a guild channel");
+                    return PreconditionResult.FromError("Command must be used in a guild channel.");
                 if (!guildUser.GuildPermissions.Has(GuildPermission.Value))
-                    return PreconditionResult.FromError($"Bot requires guild permission {GuildPermission.Value}");
+                    return PreconditionResult.FromError($"Bot requires guild permission {GuildPermission.Value}.");
             }
 
             if (ChannelPermission.HasValue)
@@ -64,7 +64,7 @@ namespace Discord.Commands
                     perms = ChannelPermissions.All(context.Channel);
 
                 if (!perms.Has(ChannelPermission.Value))
-                    return PreconditionResult.FromError($"Bot requires channel permission {ChannelPermission.Value}");
+                    return PreconditionResult.FromError($"Bot requires channel permission {ChannelPermission.Value}.");
             }
 
             return PreconditionResult.FromSuccess();

src/Discord.Net.Commands/Attributes/Preconditions/RequireContextAttribute.cs

@@ -1,6 +1,5 @@
 using System;
 using System.Threading.Tasks;
-using Microsoft.Extensions.DependencyInjection;
 
 namespace Discord.Commands
 {

src/Discord.Net.Commands/Attributes/Preconditions/RequireOwnerAttribute.cs

@@ -17,7 +17,7 @@ namespace Discord.Commands
                 case TokenType.Bot:
                     var application = await context.Client.GetApplicationInfoAsync();
                     if (context.User.Id != application.Owner.Id)
-                        return PreconditionResult.FromError("Command can only be run by the owner of the bot");
+                        return PreconditionResult.FromError("Command can only be run by the owner of the bot.");
                     return PreconditionResult.FromSuccess();
                 default:
                     return PreconditionResult.FromError($"{nameof(RequireOwnerAttribute)} is not supported by this {nameof(TokenType)}.");                    

src/Discord.Net.Commands/CommandError.cs

@@ -1,5 +1,6 @@
 namespace Discord.Commands
 {
+    /// <summary> The type of error the command throws. </summary>
     public enum CommandError
     {
         //Search

src/Discord.Net.Commands/CommandParser.cs

@@ -1,4 +1,4 @@
-using System;
+using System;
 using System.Collections.Immutable;
 using System.Text;
 using System.Threading.Tasks;
@@ -148,7 +148,7 @@ namespace Discord.Commands
             if (isEscaping)
                 return ParseResult.FromError(CommandError.ParseFailed, "Input text may not end on an incomplete escape.");
             if (curPart == ParserPart.QuotedParameter)
-                return ParseResult.FromError(CommandError.ParseFailed, "A quoted parameter is incomplete");
+                return ParseResult.FromError(CommandError.ParseFailed, "A quoted parameter is incomplete.");
             
             //Add missing optionals
             for (int i = argList.Count; i < command.Parameters.Count; i++)

src/Discord.Net.Commands/CommandService.cs

@@ -111,11 +111,11 @@ namespace Discord.Commands
         }
 
         /// <summary>
-        /// Add a command module from a type
+        /// Add a command module from a <see cref="Type"/>.
         /// </summary>
-        /// <typeparam name="T">The type of module</typeparam>
-        /// <param name="services">An IServiceProvider for your dependency injection solution, if using one - otherwise, pass null</param>
-        /// <returns>A built module</returns>
+        /// <typeparam name="T">The type of module.</typeparam>
+        /// <param name="services">An <see cref="IServiceProvider"/> for your dependency injection solution, if using one - otherwise, pass <see langword="null"/>. </param>
+        /// <returns>A built module.</returns>
         public Task<ModuleInfo> AddModuleAsync<T>(IServiceProvider services) => AddModuleAsync(typeof(T), services);
         public async Task<ModuleInfo> AddModuleAsync(Type type, IServiceProvider services)
         {
@@ -127,7 +127,7 @@ namespace Discord.Commands
                 var typeInfo = type.GetTypeInfo();
 
                 if (_typedModuleDefs.ContainsKey(type))
-                    throw new ArgumentException($"This module has already been added.");
+                    throw new ArgumentException("This module has already been added.");
 
                 var module = (await ModuleClassBuilder.BuildAsync(this, services, typeInfo).ConfigureAwait(false)).FirstOrDefault();
 
@@ -144,11 +144,11 @@ namespace Discord.Commands
             }
         }
         /// <summary>
-        /// Add command modules from an assembly
+        /// Add command modules from an <see cref="Assembly"/>.
         /// </summary>
-        /// <param name="assembly">The assembly containing command modules</param>
-        /// <param name="services">An IServiceProvider for your dependency injection solution, if using one - otherwise, pass null</param>
-        /// <returns>A collection of built modules</returns>
+        /// <param name="assembly">The <see cref="Assembly"/> containing command modules.</param>
+        /// <param name="services">An <see cref="IServiceProvider"/> for your dependency injection solution, if using one - otherwise, pass <see langword="null"/>.</param>
+        /// <returns>A collection of built modules.</returns>
         public async Task<IEnumerable<ModuleInfo>> AddModulesAsync(Assembly assembly, IServiceProvider services)
         {
             services = services ?? EmptyServiceProvider.Instance;
@@ -231,18 +231,26 @@ namespace Discord.Commands
 
         //Type Readers
         /// <summary>
-        /// Adds a custom <see cref="TypeReader"/> to this <see cref="CommandService"/> for the supplied object type. 
-        /// If <typeparamref name="T"/> is a <see cref="ValueType"/>, a <see cref="NullableTypeReader{T}"/> will also be added.
-        /// If a default <see cref="TypeReader"/> exists for <typeparamref name="T"/>, a warning will be logged and the default <see cref="TypeReader"/> will be replaced. 
+        ///     Adds a custom <see cref="TypeReader"/> to this <see cref="CommandService"/> for the supplied object type. 
+        ///     <para>
+        ///         If <typeparamref name="T"/> is a <see cref="ValueType"/>, a <see cref="NullableTypeReader{T}"/> will also be added.
+        ///     </para>
+        ///     <para>
+        ///         If a default <see cref="TypeReader"/> exists for <typeparamref name="T"/>, a warning will be logged and the default <see cref="TypeReader"/> will be replaced. 
+        ///     </para>
         /// </summary>
         /// <typeparam name="T">The object type to be read by the <see cref="TypeReader"/>.</typeparam>
         /// <param name="reader">An instance of the <see cref="TypeReader"/> to be added.</param>
         public void AddTypeReader<T>(TypeReader reader)
             => AddTypeReader(typeof(T), reader);
         /// <summary>
-        /// Adds a custom <see cref="TypeReader"/> to this <see cref="CommandService"/> for the supplied object type. 
-        /// If <paramref name="type"/> is a <see cref="ValueType"/>, a <see cref="NullableTypeReader{T}"/> for the value type will also be added.
-        /// If a default <see cref="TypeReader"/> exists for <paramref name="type"/>, a warning will be logged and the default <see cref="TypeReader"/> will be replaced.
+        ///     Adds a custom <see cref="TypeReader"/> to this <see cref="CommandService"/> for the supplied object type. 
+        ///     <para>
+        ///         If <paramref name="type"/> is a <see cref="ValueType"/>, a <see cref="NullableTypeReader{T}"/> for the value type will also be added.
+        ///     </para>
+        ///     <para>
+        ///         If a default <see cref="TypeReader"/> exists for <paramref name="type"/>, a warning will be logged and the default <see cref="TypeReader"/> will be replaced.
+        ///     </para>
         /// </summary>
         /// <param name="type">A <see cref="Type"/> instance for the type to be read.</param>
         /// <param name="reader">An instance of the <see cref="TypeReader"/> to be added.</param>
@@ -250,12 +258,14 @@ namespace Discord.Commands
         {
             if (_defaultTypeReaders.ContainsKey(type))
                 _ = _cmdLogger.WarningAsync($"The default TypeReader for {type.FullName} was replaced by {reader.GetType().FullName}." +
-                    $"To suppress this message, use AddTypeReader<T>(reader, true).");
+                    "To suppress this message, use AddTypeReader<T>(reader, true).");
             AddTypeReader(type, reader, true);
         }
         /// <summary>
         /// Adds a custom <see cref="TypeReader"/> to this <see cref="CommandService"/> for the supplied object type. 
-        /// If <typeparamref name="T"/> is a <see cref="ValueType"/>, a <see cref="NullableTypeReader{T}"/> will also be added.
+        ///     <para>
+        ///         If <typeparamref name="T"/> is a <see cref="ValueType"/>, a <see cref="NullableTypeReader{T}"/> will also be added.
+        ///     </para>
         /// </summary>
         /// <typeparam name="T">The object type to be read by the <see cref="TypeReader"/>.</typeparam>
         /// <param name="reader">An instance of the <see cref="TypeReader"/> to be added.</param>
@@ -264,7 +274,9 @@ namespace Discord.Commands
             => AddTypeReader(typeof(T), reader, replaceDefault);
         /// <summary>
         /// Adds a custom <see cref="TypeReader"/> to this <see cref="CommandService"/> for the supplied object type. 
-        /// If <paramref name="type"/> is a <see cref="ValueType"/>, a <see cref="NullableTypeReader{T}"/> for the value type will also be added. 
+        ///     <para>
+        ///         If <paramref name="type"/> is a <see cref="ValueType"/>, a <see cref="NullableTypeReader{T}"/> for the value type will also be added. 
+        ///     </para>
         /// </summary>
         /// <param name="type">A <see cref="Type"/> instance for the type to be read.</param>
         /// <param name="reader">An instance of the <see cref="TypeReader"/> to be added.</param>

src/Discord.Net.Commands/Info/CommandInfo.cs

@@ -271,11 +271,11 @@ namespace Discord.Commands
             foreach (object arg in argList)
             {
                 if (i == argCount)
-                    throw new InvalidOperationException("Command was invoked with too many parameters");
+                    throw new InvalidOperationException("Command was invoked with too many parameters.");
                 array[i++] = arg;
             }
             if (i < argCount)
-                throw new InvalidOperationException("Command was invoked with too few parameters");
+                throw new InvalidOperationException("Command was invoked with too few parameters.");
 
             if (HasVarArgs)
             {

src/Discord.Net.Commands/Info/ParameterInfo.cs

@@ -2,11 +2,13 @@ using Discord.Commands.Builders;
 using System;
 using System.Collections.Generic;
 using System.Collections.Immutable;
+using System.Diagnostics;
 using System.Threading.Tasks;
 using Microsoft.Extensions.DependencyInjection;
 
 namespace Discord.Commands
 {
+    [DebuggerDisplay(@"{DebuggerDisplay,nq}")]
     public class ParameterInfo
     {
         private readonly TypeReader _reader;
@@ -65,4 +67,4 @@ namespace Discord.Commands
         public override string ToString() => Name;
         private string DebuggerDisplay => $"{Name}{(IsOptional ? " (Optional)" : "")}{(IsRemainder ? " (Remainder)" : "")}";
     }
-}
+}

src/Discord.Net.Commands/ModuleBase.cs

@@ -43,7 +43,7 @@ namespace Discord.Commands
         void IModuleBase.SetContext(ICommandContext context)
         {
             var newValue = context as T;
-            Context = newValue ?? throw new InvalidOperationException($"Invalid context type. Expected {typeof(T).Name}, got {context.GetType().Name}");
+            Context = newValue ?? throw new InvalidOperationException($"Invalid context type. Expected {typeof(T).Name}, got {context.GetType().Name}.");
         }
         void IModuleBase.BeforeExecute(CommandInfo command) => BeforeExecute(command);
         void IModuleBase.AfterExecute(CommandInfo command) => AfterExecute(command);

src/Discord.Net.Commands/Readers/EnumTypeReader.cs

@@ -1,4 +1,4 @@
-using System;
+using System;
 using System.Collections.Generic;
 using System.Collections.Immutable;
 using System.Linq;
@@ -53,14 +53,14 @@ namespace Discord.Commands
                 if (_enumsByValue.TryGetValue(baseValue, out enumValue))
                     return Task.FromResult(TypeReaderResult.FromSuccess(enumValue));
                 else
-                    return Task.FromResult(TypeReaderResult.FromError(CommandError.ParseFailed, $"Value is not a {_enumType.Name}"));
+                    return Task.FromResult(TypeReaderResult.FromError(CommandError.ParseFailed, $"Value is not a {_enumType.Name}."));
             }
             else
             {
                 if (_enumsByName.TryGetValue(input.ToLower(), out enumValue))
                     return Task.FromResult(TypeReaderResult.FromSuccess(enumValue));
                 else
-                    return Task.FromResult(TypeReaderResult.FromError(CommandError.ParseFailed, $"Value is not a {_enumType.Name}"));
+                    return Task.FromResult(TypeReaderResult.FromError(CommandError.ParseFailed, $"Value is not a {_enumType.Name}."));
             }
         }
     }

src/Discord.Net.Commands/Readers/PrimitiveTypeReader.cs

@@ -1,4 +1,4 @@
-using System;
+using System;
 using System.Threading.Tasks;
 
 namespace Discord.Commands
@@ -24,7 +24,7 @@ namespace Discord.Commands
         public PrimitiveTypeReader(TryParseDelegate<T> tryParse, float score)
         {
             if (score < 0 || score > 1)
-                throw new ArgumentOutOfRangeException(nameof(score), score, "Scores must be within the range [0, 1]");
+                throw new ArgumentOutOfRangeException(nameof(score), score, "Scores must be within the range [0, 1].");
 
             _tryParse = tryParse;
             _score = score;
@@ -34,7 +34,7 @@ namespace Discord.Commands
         {
             if (_tryParse(input, out T value))
                 return Task.FromResult(TypeReaderResult.FromSuccess(new TypeReaderValue(value, _score)));
-            return Task.FromResult(TypeReaderResult.FromError(CommandError.ParseFailed, $"Failed to parse {typeof(T).Name}"));
+            return Task.FromResult(TypeReaderResult.FromError(CommandError.ParseFailed, $"Failed to parse {typeof(T).Name}."));
         }
     }
 }

src/Discord.Net.Commands/Readers/RoleTypeReader.cs

@@ -1,4 +1,4 @@
-using System;
+using System;
 using System.Collections.Generic;
 using System.Globalization;
 using System.Linq;
@@ -11,15 +11,13 @@ namespace Discord.Commands
     {
         public override Task<TypeReaderResult> ReadAsync(ICommandContext context, string input, IServiceProvider services)
         {
-            ulong id;
-
             if (context.Guild != null)
             {
                 var results = new Dictionary<ulong, TypeReaderValue>();
                 var roles = context.Guild.Roles;
 
                 //By Mention (1.0)
-                if (MentionUtils.TryParseRole(input, out id))
+                if (MentionUtils.TryParseRole(input, out var id))
                     AddResult(results, context.Guild.GetRole(id) as T, 1.00f);
 
                 //By Id (0.9)

src/Discord.Net.Commands/Readers/UserTypeReader.cs

@@ -1,4 +1,4 @@
-using System;
+using System;
 using System.Collections.Generic;
 using System.Collections.Immutable;
 using System.Globalization;
@@ -15,13 +15,12 @@ namespace Discord.Commands
             var results = new Dictionary<ulong, TypeReaderValue>();
             IAsyncEnumerable<IUser> channelUsers = context.Channel.GetUsersAsync(CacheMode.CacheOnly).Flatten(); // it's better
             IReadOnlyCollection<IGuildUser> guildUsers = ImmutableArray.Create<IGuildUser>();
-            ulong id;
 
             if (context.Guild != null)
                 guildUsers = await context.Guild.GetUsersAsync(CacheMode.CacheOnly).ConfigureAwait(false);
 
             //By Mention (1.0)
-            if (MentionUtils.TryParseUser(input, out id))
+            if (MentionUtils.TryParseUser(input, out var id))
             {
                 if (context.Guild != null)
                     AddResult(results, await context.Guild.GetUserAsync(id, CacheMode.CacheOnly).ConfigureAwait(false) as T, 1.00f);

src/Discord.Net.Commands/Results/PreconditionGroupResult.cs

@@ -1,4 +1,4 @@
-using System.Collections.Generic;
+using System.Collections.Generic;
 using System.Diagnostics;
 
 namespace Discord.Commands
@@ -14,11 +14,11 @@ namespace Discord.Commands
             PreconditionResults = (preconditions ?? new List<PreconditionResult>(0)).ToReadOnlyCollection();
         }
 
-        public static new PreconditionGroupResult FromSuccess()
+        public new static PreconditionGroupResult FromSuccess()
             => new PreconditionGroupResult(null, null, null);
         public static PreconditionGroupResult FromError(string reason, ICollection<PreconditionResult> preconditions)
             => new PreconditionGroupResult(CommandError.UnmetPrecondition, reason, preconditions);
-        public static new PreconditionGroupResult FromError(IResult result) //needed?
+        public new static PreconditionGroupResult FromError(IResult result) //needed?
             => new PreconditionGroupResult(result.Error, result.ErrorReason, null);
 
         public override string ToString() => IsSuccess ? "Success" : $"{Error}: {ErrorReason}";

src/Discord.Net.Commands/Results/RuntimeResult.cs

@@ -1,7 +1,4 @@
-using System;
-using System.Collections.Generic;
 using System.Diagnostics;
-using System.Text;
 
 namespace Discord.Commands
 {

src/Discord.Net.Commands/Utilities/ReflectionUtils.cs

@@ -2,7 +2,6 @@ using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Reflection;
-using Microsoft.Extensions.DependencyInjection;
 
 namespace Discord.Commands
 {
@@ -38,7 +37,7 @@ namespace Discord.Commands
             }
             catch (Exception ex)
             {
-                throw new Exception($"Failed to create \"{ownerType.FullName}\"", ex);
+                throw new Exception($"Failed to create \"{ownerType.FullName}\".", ex);
             }
         }
 
@@ -46,14 +45,14 @@ namespace Discord.Commands
         {
             var constructors = ownerType.DeclaredConstructors.Where(x => !x.IsStatic).ToArray();
             if (constructors.Length == 0)
-                throw new InvalidOperationException($"No constructor found for \"{ownerType.FullName}\"");
+                throw new InvalidOperationException($"No constructor found for \"{ownerType.FullName}\".");
             else if (constructors.Length > 1)
-                throw new InvalidOperationException($"Multiple constructors found for \"{ownerType.FullName}\"");
+                throw new InvalidOperationException($"Multiple constructors found for \"{ownerType.FullName}\".");
             return constructors[0];
         }
-        private static System.Reflection.PropertyInfo[] GetProperties(TypeInfo ownerType)
+        private static PropertyInfo[] GetProperties(TypeInfo ownerType)
         {
-            var result = new List<System.Reflection.PropertyInfo>();
+            var result = new List<PropertyInfo>();
             while (ownerType != _objectTypeInfo)
             {
                 foreach (var prop in ownerType.DeclaredProperties)
@@ -71,7 +70,7 @@ namespace Discord.Commands
                 return commands;
             if (memberType == typeof(IServiceProvider) || memberType == services.GetType())
                 return services;
-            var service = services?.GetService(memberType);
+            var service = services.GetService(memberType);
             if (service != null)
                 return service;
             throw new InvalidOperationException($"Failed to create \"{ownerType.FullName}\", dependency \"{memberType.Name}\" was not found.");

src/Discord.Net.Core/CDN.cs

@@ -2,7 +2,7 @@ using System;
 
 namespace Discord
 {
-    /// <summary> Contains the strings related to various Content Delievery Networks (CDNs). </summary>
+    /// <summary> A class containing the strings related to various Content Delivery Networks (CDNs). </summary>
     public static class CDN
     {
         /// <summary> Returns the Discord developer application icon. </summary>

src/Discord.Net.Core/DiscordConfig.cs

@@ -4,15 +4,15 @@ namespace Discord
 {
     public class DiscordConfig
     {
-        /// <summary> Returns the gateway version Discord.NET uses. </summary>
+        /// <summary> Returns the gateway version Discord.Net uses. </summary>
         public const int APIVersion = 6;
-        /// <summary> Returns the Discord.NET verion, including the build number. </summary>
+        /// <summary> Returns the Discord.Net version, including the build number. </summary>
         public static string Version { get; } =
             typeof(DiscordConfig).GetTypeInfo().Assembly.GetCustomAttribute<AssemblyInformationalVersionAttribute>()?.InformationalVersion ??
             typeof(DiscordConfig).GetTypeInfo().Assembly.GetName().Version.ToString(3) ?? 
             "Unknown";
         
-        /// <summary> Returns the user agent that Discord.NET uses in its clients. </summary>
+        /// <summary> Returns the user agent that Discord.Net uses in its clients. </summary>
         public static string UserAgent { get; } = $"DiscordBot (https://github.com/RogueException/Discord.Net, v{Version})";
         /// <summary> Returns the base Discord API URL. </summary>
         public static readonly string APIUrl = $"https://discordapp.com/api/v{APIVersion}/";

src/Discord.Net.Core/Entities/Messages/EmbedBuilder.cs

@@ -57,7 +57,7 @@ namespace Discord
             get => _url;
             set
             {
-                if (!value.IsNullOrUri()) throw new ArgumentException("Url must be a well-formed URI", nameof(Url));
+                if (!value.IsNullOrUri()) throw new ArgumentException("Url must be a well-formed URI.", nameof(Url));
                 _url = value;
             }
         }
@@ -67,7 +67,7 @@ namespace Discord
             get => _thumbnail?.Url;
             set
             {
-                if (!value.IsNullOrUri()) throw new ArgumentException("Url must be a well-formed URI", nameof(ThumbnailUrl));
+                if (!value.IsNullOrUri()) throw new ArgumentException("Url must be a well-formed URI.", nameof(ThumbnailUrl));
                 _thumbnail = new EmbedThumbnail(value, null, null, null);
             }
         }
@@ -77,7 +77,7 @@ namespace Discord
             get => _image?.Url;
             set
             {
-                if (!value.IsNullOrUri()) throw new ArgumentException("Url must be a well-formed URI", nameof(ImageUrl));
+                if (!value.IsNullOrUri()) throw new ArgumentException("Url must be a well-formed URI.", nameof(ImageUrl));
                 _image = new EmbedImage(value, null, null, null);
             }
         }
@@ -87,7 +87,7 @@ namespace Discord
             get => _fields;
             set
             {
-                if (value == null) throw new ArgumentNullException("Cannot set an embed builder's fields collection to null", nameof(Fields));
+                if (value == null) throw new ArgumentNullException(nameof(Fields), "Cannot set an embed builder's fields collection to null.");
                 if (value.Count > MaxFieldCount) throw new ArgumentException($"Field count must be less than or equal to {MaxFieldCount}.", nameof(Fields));
                 _fields = value;
             }
@@ -271,7 +271,7 @@ namespace Discord
         public Embed Build()
         {
             if (Length > MaxEmbedLength)
-                throw new InvalidOperationException($"Total embed length must be less than or equal to {MaxEmbedLength}");
+                throw new InvalidOperationException($"Total embed length must be less than or equal to {MaxEmbedLength}.");
 
             var fields = ImmutableArray.CreateBuilder<EmbedField>(Fields.Count);
             for (int i = 0; i < Fields.Count; i++)
@@ -294,7 +294,7 @@ namespace Discord
             get => _name;
             set
             {
-                if (string.IsNullOrWhiteSpace(value)) throw new ArgumentException($"Field name must not be null, empty or entirely whitespace.", nameof(Name));
+                if (string.IsNullOrWhiteSpace(value)) throw new ArgumentException("Field name must not be null, empty or entirely whitespace.", nameof(Name));
                 if (value.Length > MaxFieldNameLength) throw new ArgumentException($"Field name length must be less than or equal to {MaxFieldNameLength}.", nameof(Name));
                 _name = value;
             }
@@ -354,7 +354,7 @@ namespace Discord
             get => _url;
             set
             {
-                if (!value.IsNullOrUri()) throw new ArgumentException("Url must be a well-formed URI", nameof(Url));
+                if (!value.IsNullOrUri()) throw new ArgumentException("Url must be a well-formed URI.", nameof(Url));
                 _url = value;
             }
         }
@@ -363,7 +363,7 @@ namespace Discord
             get => _iconUrl;
             set
             {
-                if (!value.IsNullOrUri()) throw new ArgumentException("Url must be a well-formed URI", nameof(IconUrl));
+                if (!value.IsNullOrUri()) throw new ArgumentException("Url must be a well-formed URI.", nameof(IconUrl));
                 _iconUrl = value;
             }
         }
@@ -409,7 +409,7 @@ namespace Discord
             get => _iconUrl;
             set
             {
-                if (!value.IsNullOrUri()) throw new ArgumentException("Url must be a well-formed URI", nameof(IconUrl));
+                if (!value.IsNullOrUri()) throw new ArgumentException("Url must be a well-formed URI.", nameof(IconUrl));
                 _iconUrl = value;
             }
         }

src/Discord.Net.Core/Entities/Permissions/ChannelPermission.cs

@@ -3,7 +3,7 @@ using System;
 namespace Discord
 {
     /// <summary> Defines the available permissions for a channel. </summary>
-    [FlagsAttribute]
+    [Flags]
     public enum ChannelPermission : ulong
     {
         // General

src/Discord.Net.Core/Entities/Permissions/ChannelPermissions.cs

@@ -29,7 +29,7 @@ namespace Discord
                 case ICategoryChannel _: return Category;
                 case IDMChannel _: return DM;
                 case IGroupChannel _: return Group;
-                default: throw new ArgumentException("Unknown channel type", nameof(channel));
+                default: throw new ArgumentException("Unknown channel type.", nameof(channel));
             }
         }
 

src/Discord.Net.Core/Entities/Roles/Color.cs

@@ -74,11 +74,11 @@ namespace Discord
         public Color(int r, int g, int b)
         {
             if (r < 0 || r > 255)
-                throw new ArgumentOutOfRangeException(nameof(r), "Value must be within [0,255]");
+                throw new ArgumentOutOfRangeException(nameof(r), "Value must be within [0,255].");
             if (g < 0 || g > 255)
-                throw new ArgumentOutOfRangeException(nameof(g), "Value must be within [0,255]");
+                throw new ArgumentOutOfRangeException(nameof(g), "Value must be within [0,255].");
             if (b < 0 || b > 255)
-                throw new ArgumentOutOfRangeException(nameof(b), "Value must be within [0,255]");
+                throw new ArgumentOutOfRangeException(nameof(b), "Value must be within [0,255].");
             RawValue =
                 ((uint)r << 16) |
                 ((uint)g << 8) |
@@ -87,11 +87,11 @@ namespace Discord
         public Color(float r, float g, float b)
         {
             if (r < 0.0f || r > 1.0f)
-                throw new ArgumentOutOfRangeException(nameof(r), "Value must be within [0,1]");
+                throw new ArgumentOutOfRangeException(nameof(r), "Value must be within [0,1].");
             if (g < 0.0f || g > 1.0f)
-                throw new ArgumentOutOfRangeException(nameof(g), "Value must be within [0,1]");
+                throw new ArgumentOutOfRangeException(nameof(g), "Value must be within [0,1].");
             if (b < 0.0f || b > 1.0f)
-                throw new ArgumentOutOfRangeException(nameof(b), "Value must be within [0,1]");
+                throw new ArgumentOutOfRangeException(nameof(b), "Value must be within [0,1].");
             RawValue =
                 ((uint)(r * 255.0f) << 16) |
                 ((uint)(g * 255.0f) << 8) |