Exposes an application-owned time-zone function through Microsoft.Extensions.AI and lets the chat model invoke it.
Install the .NET 10 SDK and .NET 8 runtime. Windows/Linux/macOS require a compatible platform-specific llama-server runtime and an application-owned GGUF chat model. See runtime setup and the license.
No MCP or Document Editor is required to execute this focused API example. Use within solutions under the repository's TX Text Control license terms.
From the repository root, after provisioning the runtime:
dotnet run --project samples/LocalToolCalling -- "/path/to/chat-model.gguf"The model can invoke GetCurrentTime and return the time in Berlin. Use a tool-capable chat model. Only expose functions you intend the model to call; external side effects should require application authorization.
The single argument is the GGUF path. Use an absolute path, especially when running from another directory. Set TXTEXTCONTROL_AI_LLAMA_SERVER to an installed executable or install a managed runtime explicitly using the package API described in the runtime guide. Startup does not download missing runtimes by default.
Model files are not included. Missing-runtime, unsupported-model and insufficient-memory errors are separate from NuGet restore errors. Try a smaller model/context if memory is limited. See the complete AI API guide for LocalModelOptions, cancellation, disposal and session behavior.