Update to stable Microsoft.Extensions.AI.Abstractions

Also take advantage of some more recently added capabilities.

Author: stephentoub

LLama/Extensions/LLamaExecutorExtensions.cs

@@ -71,7 +71,12 @@ public async Task<ChatResponse> GetResponseAsync(
                 text.Append(token);
             }
 
-            return new(new ChatMessage(ChatRole.Assistant, text.ToString()))
+            var message = new ChatMessage(ChatRole.Assistant, text.ToString())
+            {
+                MessageId = Guid.NewGuid().ToString("N"),
+            };
+
+            return new(message)
             {
                 CreatedAt = DateTime.UtcNow,
             };
@@ -83,11 +88,13 @@ public async IAsyncEnumerable<ChatResponseUpdate> GetStreamingResponseAsync(
         {
             var result = _executor.InferAsync(CreatePrompt(messages), CreateInferenceParams(options), cancellationToken);
 
+            string messageId = Guid.NewGuid().ToString("N");
             await foreach (var token in _outputTransform.TransformAsync(result))
             {
                 yield return new(ChatRole.Assistant, token) 
                 {
                     CreatedAt = DateTime.UtcNow,
+                    MessageId = messageId,
                 };
             }
         }
@@ -124,37 +131,33 @@ private string CreatePrompt(IEnumerable<ChatMessage> messages)
         }
 
         /// <summary>Convert the chat options to inference parameters.</summary>
-        private static InferenceParams? CreateInferenceParams(ChatOptions? options)
+        private InferenceParams CreateInferenceParams(ChatOptions? options)
         {
-            List<string> antiPrompts = new(s_antiPrompts);
-            if (options?.AdditionalProperties?.TryGetValue(nameof(InferenceParams.AntiPrompts), out IReadOnlyList<string>? anti) is true)
-            {
-                antiPrompts.AddRange(anti);
-            }
+            InferenceParams ip = options?.RawRepresentationFactory?.Invoke(this) as InferenceParams ?? new();
 
-            return new()
+            ip.AntiPrompts = [.. s_antiPrompts, .. ip.AntiPrompts];
+            ip.MaxTokens = options?.MaxOutputTokens ?? 256; // arbitrary upper limit
+            ip.SamplingPipeline = new DefaultSamplingPipeline()
             {
-                AntiPrompts = antiPrompts,
-                TokensKeep = options?.AdditionalProperties?.TryGetValue(nameof(InferenceParams.TokensKeep), out int tk) is true ? tk : s_defaultParams.TokensKeep,
-                MaxTokens = options?.MaxOutputTokens ?? 256, // arbitrary upper limit
-                SamplingPipeline = new DefaultSamplingPipeline()
-                {
-                    FrequencyPenalty = options?.FrequencyPenalty ?? s_defaultPipeline.FrequencyPenalty,
-                    PresencePenalty = options?.PresencePenalty ?? s_defaultPipeline.PresencePenalty,
-                    PreventEOS = options?.AdditionalProperties?.TryGetValue(nameof(DefaultSamplingPipeline.PreventEOS), out bool eos) is true ? eos : s_defaultPipeline.PreventEOS,
-                    PenalizeNewline = options?.AdditionalProperties?.TryGetValue(nameof(DefaultSamplingPipeline.PenalizeNewline), out bool pnl) is true ? pnl : s_defaultPipeline.PenalizeNewline,
-                    RepeatPenalty = options?.AdditionalProperties?.TryGetValue(nameof(DefaultSamplingPipeline.RepeatPenalty), out float rp) is true ? rp : s_defaultPipeline.RepeatPenalty,
-                    PenaltyCount = options?.AdditionalProperties?.TryGetValue(nameof(DefaultSamplingPipeline.PenaltyCount), out int rpc) is true ? rpc : s_defaultPipeline.PenaltyCount,
-                    Grammar = options?.AdditionalProperties?.TryGetValue(nameof(DefaultSamplingPipeline.Grammar), out Grammar? g) is true ? g : s_defaultPipeline.Grammar,
-                    MinKeep = options?.AdditionalProperties?.TryGetValue(nameof(DefaultSamplingPipeline.MinKeep), out int mk) is true ? mk : s_defaultPipeline.MinKeep,
-                    MinP = options?.AdditionalProperties?.TryGetValue(nameof(DefaultSamplingPipeline.MinP), out float mp) is true ? mp : s_defaultPipeline.MinP,
-                    Seed = options?.Seed is long seed ? (uint)seed : (uint)(t_random ??= new()).Next(),
-                    Temperature = options?.Temperature ?? s_defaultPipeline.Temperature,
-                    TopP = options?.TopP ?? s_defaultPipeline.TopP,
-                    TopK = options?.TopK ?? s_defaultPipeline.TopK,
-                    TypicalP = options?.AdditionalProperties?.TryGetValue(nameof(DefaultSamplingPipeline.TypicalP), out float tp) is true ? tp : s_defaultPipeline.TypicalP,
-                },
+                FrequencyPenalty = options?.FrequencyPenalty ?? (ip.SamplingPipeline as DefaultSamplingPipeline)?.FrequencyPenalty ?? s_defaultPipeline.FrequencyPenalty,
+                PresencePenalty = options?.PresencePenalty ?? (ip.SamplingPipeline as DefaultSamplingPipeline)?.PresencePenalty ?? s_defaultPipeline.PresencePenalty,
+                PreventEOS = (ip.SamplingPipeline as DefaultSamplingPipeline)?.PreventEOS ?? s_defaultPipeline.PreventEOS,
+                PenalizeNewline = (ip.SamplingPipeline as DefaultSamplingPipeline)?.PenalizeNewline ?? s_defaultPipeline.PenalizeNewline,
+                RepeatPenalty = (ip.SamplingPipeline as DefaultSamplingPipeline)?.RepeatPenalty ?? s_defaultPipeline.RepeatPenalty,
+                PenaltyCount = (ip.SamplingPipeline as DefaultSamplingPipeline)?.PenaltyCount ?? s_defaultPipeline.PenaltyCount,
+                Grammar = (ip.SamplingPipeline as DefaultSamplingPipeline)?.Grammar ?? s_defaultPipeline.Grammar,
+                GrammarOptimization = (ip.SamplingPipeline as DefaultSamplingPipeline)?.GrammarOptimization ?? s_defaultPipeline.GrammarOptimization,
+                LogitBias = (ip.SamplingPipeline as DefaultSamplingPipeline)?.LogitBias ?? s_defaultPipeline.LogitBias,
+                MinKeep = (ip.SamplingPipeline as DefaultSamplingPipeline)?.MinKeep ?? s_defaultPipeline.MinKeep,
+                MinP = (ip.SamplingPipeline as DefaultSamplingPipeline)?.MinP ?? s_defaultPipeline.MinP,
+                Seed = options?.Seed is long seed ? (uint)seed : (uint)(t_random ??= new()).Next(),
+                Temperature = options?.Temperature ?? s_defaultPipeline.Temperature,
+                TopP = options?.TopP ?? s_defaultPipeline.TopP,
+                TopK = options?.TopK ?? s_defaultPipeline.TopK,
+                TypicalP = (ip.SamplingPipeline as DefaultSamplingPipeline)?.TypicalP ?? s_defaultPipeline.TypicalP,
             };
+
+            return ip;
         }
 
         /// <summary>A default transform that appends "Assistant: " to the end.</summary>

LLama/LLamaSharp.csproj

@@ -51,7 +51,7 @@
   <ItemGroup>
     <PackageReference Include="CommunityToolkit.HighPerformance" Version="8.4.0" />
     <PackageReference Include="Microsoft.Bcl.AsyncInterfaces" Version="9.0.3" />
-    <PackageReference Include="Microsoft.Extensions.AI.Abstractions" Version="9.5.0-preview.1.25262.9" />
+    <PackageReference Include="Microsoft.Extensions.AI.Abstractions" Version="9.5.0" />
     <PackageReference Include="Microsoft.Extensions.Logging.Abstractions" Version="9.0.3" />
     <PackageReference Include="System.Numerics.Tensors" Version="9.0.3" />
   </ItemGroup>