86 lines
2.5 KiB
C#
86 lines
2.5 KiB
C#
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#if TOOLS
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namespace Rokojori.Tools
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{
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using Rokojori;
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// Pure protocol logic - no Godot API access except inside ExecuteTool's route calls,
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// which is why only tools/call needs to cross onto the main thread (see McpServer).
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public class McpProtocolHandler
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{
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public JSONObject Initialize( JSONData id, JSONObject paramsObj )
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{
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var requestedVersion = JsonUtil.GetStringOrNull( paramsObj, "protocolVersion" );
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var protocolVersion = string.IsNullOrEmpty( requestedVersion ) ? "2025-06-18" : requestedVersion;
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var capabilities = new JSONObject();
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capabilities.Set( "tools", new JSONObject() );
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var serverInfo = new JSONObject();
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serverInfo.Set( "name", "godot-mcp" );
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serverInfo.Set( "version", "0.1.0" );
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var result = new JSONObject();
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result.Set( "protocolVersion", protocolVersion );
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result.Set( "capabilities", capabilities );
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result.Set( "serverInfo", serverInfo );
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return JsonRpc.BuildResult( id, result );
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}
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public JSONObject ToolsList( JSONData id )
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{
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var tools = new JSONArray();
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tools.Push( ReadResourceRoute.ToolDefinition() );
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tools.Push( WriteResourceRoute.ToolDefinition() );
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tools.Push( ReadSceneFragmentRoute.ToolDefinition() );
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tools.Push( WriteSceneFragmentRoute.ToolDefinition() );
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var result = new JSONObject();
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result.Set( "tools", tools );
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return JsonRpc.BuildResult( id, result );
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}
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public JSONObject ToolCallResult( JSONData id, ToolCallOutcome outcome )
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{
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var item = new JSONObject();
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item.Set( "type", "text" );
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item.Set( "text", outcome.text );
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var content = new JSONArray();
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content.Push( item );
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var result = new JSONObject();
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result.Set( "content", content );
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result.Set( "isError", outcome.isError );
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return JsonRpc.BuildResult( id, result );
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}
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// Runs on the main thread, dequeued from McpServer's pending-call queue.
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public ToolCallOutcome ExecuteTool( string toolName, JSONObject arguments )
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{
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switch ( toolName )
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{
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case "read_resource":
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return ReadResourceRoute.Execute( arguments );
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case "write_resource":
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return WriteResourceRoute.Execute( arguments );
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case "read_scene_fragment":
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return ReadSceneFragmentRoute.Execute( arguments );
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case "write_scene_fragment":
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return WriteSceneFragmentRoute.Execute( arguments );
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default:
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return ToolCallOutcome.Error( "Unknown tool: " + toolName );
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}
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}
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}
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}
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#endif
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