diff --git a/nexus/deps/nexus-temporal-types/model.wit b/nexus/deps/nexus-temporal-types/model.wit
index c661ee510..69dec6b0b 100644
--- a/nexus/deps/nexus-temporal-types/model.wit
+++ b/nexus/deps/nexus-temporal-types/model.wit
@@ -8,6 +8,7 @@ interface model {
   /// @nexus.type
   ///   python="typing.Any"
   ///   typescript="common.Payload"
+  ///   go="any"
   ///   dotnet="object?"
   ///   dotnet-from="ProtoExtensions.FromPayload"
   ///   dotnet-to="ProtoExtensions.ToPayload"
@@ -16,7 +17,11 @@ interface model {
 
   /// @nexus.proto "temporal.api.common.v1.Payloads"
   ///   typescript-import="@temporalio/proto"
-  /// @nexus.type dotnet="IReadOnlyCollection<object?>" dotnet-from="ProtoExtensions.FromPayloads" dotnet-to="ProtoExtensions.ToPayloads"
+  /// @nexus.type
+  ///   go="[]any"
+  ///   dotnet="IReadOnlyCollection<object?>"
+  ///   dotnet-from="ProtoExtensions.FromPayloads"
+  ///   dotnet-to="ProtoExtensions.ToPayloads"
   type payloads = list<payload>;
 
   /// Temporal failure represented by the target SDK's native exception/error type.
@@ -35,11 +40,12 @@ interface model {
   /// @nexus.type
   ///   python="collections.abc.Awaitable[WorkflowResult]"
   ///   typescript="Promise<any>"
+  ///   go="any"
   ///   dotnet="System.Threading.Tasks.Task<object?>"
   type workflow-result = placeholder;
 
   /// Receiver/context argument for workflow callable method forms.
-  /// @nexus.type python="typing.Any" typescript="any" dotnet="object"
+  /// @nexus.type python="typing.Any" typescript="any" go="go.temporal.io/sdk/workflow:workflow.Context" dotnet="object"
   type callable-prefix = placeholder;
 
   /// @nexus.function-args
@@ -49,7 +55,7 @@ interface model {
   workflow-call: async func(callable-prefix: callable-prefix, args: payloads) -> workflow-result;
 
   /// Callable result annotation for signal functions.
-  /// @nexus.type python="None | collections.abc.Awaitable[None]" typescript="void" dotnet="void"
+  /// @nexus.type python="None | collections.abc.Awaitable[None]" typescript="void" go="any" dotnet="void"
   type signal-result = placeholder;
 
   /// @nexus.function-args
@@ -62,6 +68,7 @@ interface model {
   /// @nexus.type
   ///   python="str"
   ///   typescript="string"
+  ///   go="string"
   ///   dotnet="string"
   ///   dotnet-from="ProtoExtensions.FromWorkflowTypeProto"
   ///   dotnet-to="ProtoExtensions.ToWorkflowTypeProto"
@@ -73,6 +80,7 @@ interface model {
   ///   args-field="input"
   ///   result-type-parameter="WorkflowResult"
   ///   alternate-type="workflow-type"
+  ///   go-name-extractor="WorkflowFunctionName"
   ///   dotnet-name-extractor="TemporalFunctionNames.WorkflowName"
   ///   dotnet-call-extractor="TemporalFunctionNames.ExtractCall"
   /// @nexus.add-rpc-compatible-with "workflow-type"
@@ -82,6 +90,8 @@ interface model {
   ///   signature="signal-call"
   ///   args-field="signal-input"
   ///   alternate-type="string"
+  ///   go-value-type="string"
+  ///   go-args-type="any"
   ///   python-converter="signal_function_to_proto"
   ///   typescript-name-extractor="signalFunctionName"
   ///   dotnet-name-extractor="TemporalFunctionNames.SignalName"
@@ -96,6 +106,7 @@ interface model {
   /// @nexus.type
   ///   python="temporalio.common.RetryPolicy"
   ///   typescript="common.RetryPolicy"
+  ///   go="go.temporal.io/sdk/temporal.RetryPolicy"
   ///   dotnet="Temporalio.Common.RetryPolicy"
   ///   dotnet-from="ProtoExtensions.FromRetryPolicyProto"
   ///   typescript-import="@temporalio/common"
@@ -105,13 +116,19 @@ interface model {
   /// @nexus.type
   ///   python="str"
   ///   typescript="string"
+  ///   go="string"
   ///   dotnet="string"
   ///   dotnet-from="ProtoExtensions.FromTaskQueueProto"
   ///   dotnet-to="ProtoExtensions.ToTaskQueueProto"
   type task-queue = placeholder;
 
   /// @nexus.proto "temporal.api.common.v1.Memo" typescript-import="@temporalio/proto"
-  /// @nexus.type python="collections.abc.Mapping[str, typing.Any]" typescript="Record<string, unknown>" dotnet="IReadOnlyDictionary<string, object?>" dotnet-from="ProtoExtensions.FromMemoProto"
+  /// @nexus.type
+  ///   python="collections.abc.Mapping[str, typing.Any]"
+  ///   typescript="Record<string, unknown>"
+  ///   go="map[string]any"
+  ///   dotnet="IReadOnlyDictionary<string, object?>"
+  ///   dotnet-from="ProtoExtensions.FromMemoProto"
   type memo = placeholder;
 
   /// @nexus.proto "temporal.api.common.v1.Header" typescript-import="@temporalio/proto"
@@ -129,6 +146,7 @@ interface model {
   /// @nexus.type
   ///   python="temporalio.common.TypedSearchAttributes"
   ///   typescript="common.TypedSearchAttributes"
+  ///   go="go.temporal.io/sdk/temporal.SearchAttributes"
   ///   dotnet="Temporalio.Common.SearchAttributeCollection"
   ///   dotnet-from="ProtoExtensions.FromSearchAttributesProto"
   ///   typescript-import="@temporalio/common"
@@ -138,6 +156,7 @@ interface model {
   /// @nexus.type
   ///   python="temporalio.common.Priority"
   ///   typescript="common.Priority"
+  ///   go="go.temporal.io/sdk/temporal.Priority"
   ///   dotnet="Temporalio.Common.Priority"
   ///   dotnet-from="ProtoExtensions.FromPriorityProto"
   ///   typescript-import="@temporalio/common"
@@ -147,6 +166,7 @@ interface model {
   /// @nexus.type
   ///   python="temporalio.common.VersioningOverride"
   ///   typescript="common.VersioningOverride"
+  ///   go="go.temporal.io/sdk/client.VersioningOverride"
   ///   dotnet="Temporalio.Common.VersioningOverride"
   ///   dotnet-from="ProtoExtensions.FromVersioningOverrideProto"
   ///   typescript-import="@temporalio/common"
@@ -156,6 +176,7 @@ interface model {
   /// @nexus.type
   ///   python="datetime.timedelta"
   ///   typescript="common.Duration"
+  ///   go="time.Duration"
   ///   dotnet="System.TimeSpan"
   ///   dotnet-from="ProtoExtensions.FromDurationProto"
   ///   typescript-import="@temporalio/common"
@@ -165,6 +186,7 @@ interface model {
   /// @nexus.type
   ///   python="temporalio.common.WorkflowIDReusePolicy"
   ///   typescript="common.WorkflowIdReusePolicy"
+  ///   go="go.temporal.io/api/enums/v1:enums.WorkflowIdReusePolicy"
   ///   dotnet="Temporalio.Api.Enums.V1.WorkflowIdReusePolicy"
   ///   typescript-import="@temporalio/common"
   type workflow-id-reuse-policy = placeholder;
@@ -173,6 +195,7 @@ interface model {
   /// @nexus.type
   ///   python="temporalio.common.WorkflowIDConflictPolicy"
   ///   typescript="common.WorkflowIdConflictPolicy"
+  ///   go="go.temporal.io/api/enums/v1:enums.WorkflowIdConflictPolicy"
   ///   dotnet="Temporalio.Api.Enums.V1.WorkflowIdConflictPolicy"
   ///   typescript-import="@temporalio/common"
   type workflow-id-conflict-policy = placeholder;
@@ -184,11 +207,11 @@ interface model {
   record user-metadata {
     /// @nexus.doc "Single-line fixed summary for the workflow execution that may appear in UI and CLI. This can be in single-line Temporal Markdown format."
     /// @nexus.proto-field "summary"
-    /// @nexus.flattened-type python="str" typescript="string" dotnet="string"
+    /// @nexus.flattened-type python="str" typescript="string" dotnet="string" go="string"
     static-summary: option<payload>,
     /// @nexus.doc "General fixed details for the workflow execution that may appear in UI and CLI. This can be in Temporal Markdown format and can span multiple lines. This value is fixed on the workflow execution and cannot be updated."
     /// @nexus.proto-field "details"
-    /// @nexus.flattened-type python="str" typescript="string" dotnet="string"
+    /// @nexus.flattened-type python="str" typescript="string" dotnet="string" go="string"
     static-details: option<payload>,
   }
 }
diff --git a/nexus/workflow-service.wit b/nexus/workflow-service.wit
index caf3842a3..17dd95b0f 100644
--- a/nexus/workflow-service.wit
+++ b/nexus/workflow-service.wit
@@ -6,7 +6,7 @@ world system {
 
 /// @nexus.endpoint "__temporal_system"
 /// @nexus.service-name "temporal.api.workflowservice.v1.WorkflowService"
-/// @nexus.namespace dotnet="Temporalio.Workflows"
+/// @nexus.namespace dotnet="Temporalio.Workflows" go="go.temporal.io/sdk/workflow"
 /// @nexus.operations-class dotnet="Workflow"
 /// @nexus.delay-load-temporalio-workflow
 /// @nexus.experimental
@@ -49,6 +49,7 @@ interface workflow-service {
     ///   python="Signal name or callable to send with the start request."
     ///   typescript="Signal name or signal definition to send with the start request."
     ///   dotnet="Signal name or signal expression to send with the start request."
+    ///   go="Signal name to send with the start request."
     /// @nexus.proto-field "signal_name"
     signal: signal-function,
     /// @nexus.doc "Total workflow execution timeout, including retries and continue-as-new. Defaults to unlimited."
@@ -70,9 +71,11 @@ interface workflow-service {
     /// @nexus.doc "Behavior when a closed workflow with the same ID exists. Default is allow-duplicate."
     /// @nexus.proto-field "workflow_id_reuse_policy"
     /// @nexus.default "allow-duplicate"
+    /// @nexus.name go="WorkflowIDReusePolicy"
     id-reuse-policy: workflow-id-reuse-policy,
     /// @nexus.doc "Behavior when a workflow is currently running with the same ID. Set to use-existing for idempotent deduplication on workflow ID. Cannot be set if id-reuse-policy is terminate-if-running. Defaults to use-existing."
     /// @nexus.proto-field "workflow_id_conflict_policy"
+    /// @nexus.name go="WorkflowIDConflictPolicy"
     id-conflict-policy: option<workflow-id-conflict-policy>,
     /// @nexus.doc "Retry policy for the workflow."
     retry-policy: option<retry-policy>,
@@ -81,6 +84,7 @@ interface workflow-service {
     /// @nexus.doc "Memo for the workflow."
     memo: option<memo>,
     /// @nexus.doc "Typed search attributes for the workflow."
+    /// @nexus.name go="TypedSearchAttributes"
     search-attributes: option<search-attributes>,
     /// @nexus.doc "Priority of the workflow execution."
     priority: option<priority>,
@@ -91,7 +95,7 @@ interface workflow-service {
     start-delay: option<duration>,
     /// @nexus.doc "Static metadata for the workflow execution."
     user-metadata: option<user-metadata>,
-    /// @nexus.source python="workflow_namespace()" typescript="workflowNamespace()" go="workflow.GetInfo(ctx).Namespace" dotnet="TemporalWorkflowContext.WorkflowNamespace()"
+    /// @nexus.source python="workflow_namespace()" typescript="workflowNamespace()" go="WorkflowNamespace(ctx)" dotnet="TemporalWorkflowContext.WorkflowNamespace()"
     /// @nexus.doc "Namespace of the workflow execution."
     namespace: string,
     /// @nexus.omit
@@ -133,7 +137,7 @@ interface workflow-service {
   ///   dotnet-type="Temporalio.Workflows.ExternalWorkflowHandle"
   ///   dotnet="Temporalio.Workflows.Workflow.GetExternalWorkflowHandle(request.Id, result.RunId)"
   /// @nexus.operation name="SignalWithStartWorkflowExecution"
-  /// @nexus.serialization-context python="signal_with_start_workflow_serialization_context" typescript="signalWithStartWorkflowSerializationContext" dotnet="WorkflowServiceSerializationContexts.SignalWithStartWorkflow"
+  /// @nexus.serialization-context python="signal_with_start_workflow_serialization_context" typescript="signalWithStartWorkflowSerializationContext" dotnet="WorkflowServiceSerializationContexts.SignalWithStartWorkflow" go="SignalWithStartWorkflowSerializationContext"
   /// @nexus.experimental
   signal-with-start-workflow: func(
     request: signal-with-start-workflow-request,