Agent Client Protocol - v1.8.0
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    Type Alias MessageMcpRequestExperimental

    UNSTABLE

    This capability is not part of the spec yet, and may be removed or changed at any point.

    Request parameters for mcp/message.

    type MessageMcpRequest = {
        serverId: McpServerAcpId;
        requestId: McpRequestId;
        method: string;
        params?: { [key: string]: unknown } | null;
        _meta?: { [key: string]: unknown } | null;
    }
    Index
    serverId: McpServerAcpId

    The declared ACP MCP server receiving this request.

    requestId: McpRequestId

    The caller-generated identifier for the inner MCP request.

    method: string

    The inner MCP method name.

    params?: { [key: string]: unknown } | null

    Optional inner MCP params.

    If omitted or set to null, the inner MCP message has no params.

    _meta?: { [key: string]: unknown } | null

    The _meta property is reserved by ACP to allow clients and agents to attach additional metadata to their interactions. Implementations MUST NOT make assumptions about values at these keys.

    See protocol docs: Extensibility