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5791203d77
OutputConverter was passing the JSON serialization of complex tool results (e.g. List<TodoItem>) directly into OutputItemFunctionToolCallOutput via BinaryData.FromString. The Responses SDK treats that BinaryData as the *raw JSON value* for the field, so non-string results landed on the wire as an unquoted JSON array (e.g. `"output":[{...}]`) instead of a JSON string.
The OpenAI Responses spec requires `function_call_output.output` to be a JSON string. The strict-parsing OpenAI .NET client (FunctionCallOutputResponseItem) consequently failed when threading a follow-up turn that replayed such an item, with: `The JSON value could not be converted... requires an element of type 'String', but the target element has type 'Array'`.
Always wrap the payload as a JSON string literal:
- string s -> JSON-encode s (quoted, with escapes)
- object o -> JSON-serialize o, then JSON-encode the resulting text
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
5791203d77
·
2026-05-07 13:58:00 -07:00
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Get Started with Microsoft Agent Framework for C# Developers
Quickstart
Basic Agent - .NET
using Azure.AI.OpenAI;
using Azure.Identity;
using Microsoft.Agents.AI;
using OpenAI.Responses;
var endpoint = Environment.GetEnvironmentVariable("AZURE_OPENAI_ENDPOINT")!;
var deploymentName = Environment.GetEnvironmentVariable("AZURE_OPENAI_DEPLOYMENT_NAME")!;
var agent = new AzureOpenAIClient(new Uri(endpoint), new AzureCliCredential())
.GetResponsesClient(deploymentName)
.AsAIAgent(name: "HaikuBot", instructions: "You are an upbeat assistant that writes beautifully.");
Console.WriteLine(await agent.RunAsync("Write a haiku about Microsoft Agent Framework."));
Examples & Samples
- Getting Started with Agents: basic agent creation and tool usage
- Agent Provider Samples: samples showing different agent providers
- Workflow Samples: advanced multi-agent patterns and workflow orchestration