TsgcWSAPIServer_MCP › Events › OnMCPInitialize

OnMCPInitialize Event

Fired during the MCP handshake so server capabilities and ServerInfo can be customised per session.

Syntax

property OnMCPInitialize: TsgcAI_MCP_Server_OnInitializeEvent;
// TsgcAI_MCP_Server_OnInitializeEvent = procedure(Sender: TObject; const aRequest: TsgcAI_MCP_Request_Initialize; const aResponse: TsgcAI_MCP_Response_Initialize) of object

Default Value

—

Remarks

Raised after the initialize request has been parsed and just before the negotiated response is returned to the client. Inspect aRequest to read the protocol version and the capabilities announced by the client, and mutate aResponse to customise the ServerInfo, advertise extra capabilities (Tools, Prompts, Resources, Logging, Completions, Sampling, Elicitation) or adjust the instructions shown to the client. Perform only non-blocking work here; long operations should be deferred to later lifecycle events.

Example

procedure TMainForm.MCPServerMCPInitialize(Sender: TObject;
  const aRequest: TsgcAI_MCP_Request_Initialize;
  const aResponse: TsgcAI_MCP_Response_Initialize);
begin
  aResponse.Result.ServerInfo.Name := 'sgc-mcp-server';
  aResponse.Result.ServerInfo.Version := '1.0.0';
  aResponse.Result.Instructions := 'Authenticated MCP server for operations workflows.';
end;

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