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Decouple Handlers and Collections from protocol types (#765)

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* Decouple Handlers and Collections (e.g. ToolsHandler and ToolsCollection) from Capabilities by promoting them to the options types.

Also, group all handlers in container classes, for server, I decided to move McpServerHandlers down to Mcp.Core and move the NotificationHandlers there too.

Also, Fix ListResourceTemplatesHandler issue.

* Add remarks for empty protocol capability types

* Keep JsonIgnore properties and mark them as Obsolete

* Continue supporting Obsolete members

* Update Obsolete messages to indicate the member will be removed

* Add EditorBrowsable Never to the remaining obsolete members
This commit is contained in:
David Cantú 2025-09-24 09:42:03 -05:00 • committed by GitHub
commit 5f992994c3
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1 changed files with 1588 additions and 1161 deletions
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8
src/ModelContextProtocol.Core/Protocol/ClientCapabilities.cs
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@ -1,5 +1,7 @@
using ModelContextProtocol.Server;
using System.ComponentModel;
using System.Text.Json.Serialization;
using ModelContextProtocol.Client;
using ModelContextProtocol.Server;
namespace ModelContextProtocol.Protocol;
@ -45,7 +47,7 @@ public sealed class ClientCapabilities
/// </para>
/// <para>
/// The server can use <see cref="McpServer.RequestRootsAsync"/> to request the list of
/// available roots from the client, which will trigger the client's <see cref="RootsCapability.RootsHandler"/>.
/// available roots from the client, which will trigger the client's <see cref="ModelContextProtocol.Client.McpClientHandlers.RootsHandler"/>.
/// </para>
/// </remarks>
[JsonPropertyName("roots")]
@ -83,5 +85,7 @@ public sealed class ClientCapabilities
/// </para>
/// </remarks>
[JsonIgnore]
[Obsolete($"Use {nameof(McpClientOptions.Handlers.NotificationHandlers)} instead. This member will be removed in a subsequent release.")] // See: https://github.com/modelcontextprotocol/csharp-sdk/issues/774
[EditorBrowsable(EditorBrowsableState.Never)]
public IEnumerable<KeyValuePair<string, Func<JsonRpcNotification, CancellationToken, ValueTask>>>? NotificationHandlers { get; set; }
}