DiagnosticsFunctionInvocationExtensions

NexusLabs.Needlr.AgentFramework

NexusLabs.Needlr.AgentFramework.Diagnostics

DiagnosticsFunctionInvocationExtensions Class

Extension methods for wiring DiagnosticsFunctionInvokingChatClient into an MEAI chat client pipeline.

public static class DiagnosticsFunctionInvocationExtensions

Inheritance System.Object 🡒 DiagnosticsFunctionInvocationExtensions

Methods

DiagnosticsFunctionInvocationExtensions.UseDiagnosticsFunctionInvocation(this ChatClientBuilder, IAgentMetrics, IProgressReporterAccessor) Method

Inserts a DiagnosticsFunctionInvokingChatClient into the pipeline that records per-tool-call diagnostics, OTel metrics, and Activity spans.

public static Microsoft.Extensions.AI.ChatClientBuilder UseDiagnosticsFunctionInvocation(this Microsoft.Extensions.AI.ChatClientBuilder builder, NexusLabs.Needlr.AgentFramework.Diagnostics.IAgentMetrics? metrics=null, NexusLabs.Needlr.AgentFramework.Progress.IProgressReporterAccessor? progressAccessor=null);

Parameters

builder Microsoft.Extensions.AI.ChatClientBuilder

The chat client builder.

metrics IAgentMetrics

Optional OTel metrics recorder.

progressAccessor IProgressReporterAccessor

Optional progress reporter for real-time events.

Returns

Microsoft.Extensions.AI.ChatClientBuilder
The builder, for chaining.

Remarks

This replaces the standard UseFunctionInvocation() call. Do not use both — it would create two FunctionInvokingChatClient layers and produce duplicate tool calls.