Added tool calling support (#731)

Co-authored-by: krut_ni <nils.kruthoff@dlr.de>
Co-authored-by: Thorsten Sommer <SommerEngineering@users.noreply.github.com>

app/MindWork AI Studio/Tools/Web/WebPageModelContent.cs

@@ -0,0 +1,18 @@
+namespace AIStudio.Tools.Web;
+
+/// <summary>
+/// The parts of a retrieved web page that a tool hands to a model.
+/// </summary>
+/// <remarks>
+/// Every field here left the page as free text, so every field can carry an injection: a title,
+/// an author name from a meta tag, and a publication date are all attacker-controlled on a page
+/// the model asked for. They are filtered together with the page content.
+/// </remarks>
+public sealed record WebPageModelContent(string Markdown, string Title, string Description, IReadOnlyList<string> Authors, string Language, string PublishedTime, string ModifiedTime)
+{
+    /// <summary>
+    /// Takes the model-facing fields of an extracted page, with the content the tool decided to
+    /// return, which may be shorter than what was extracted.
+    /// </summary>
+    public static WebPageModelContent From(ExtractedWebPage page, string markdown) => new(markdown, page.Title, page.Description, page.Authors, page.Language, page.PublishedTime, page.ModifiedTime);
+}