Upgrade to Zod v4 (#2605)

Co-authored-by: GitHub Action <[email protected]>

12 files changed, 364 insertions, 343 deletions

diff --git a/packages/sdk/go/.release-please-manifest.json b/packages/sdk/go/.release-please-manifest.json
index 76d5538a4..ed21d28cb 100644
--- a/packages/sdk/go/.release-please-manifest.json
+++ b/packages/sdk/go/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "0.9.0"
+  ".": "0.13.0"
 }
diff --git a/packages/sdk/go/.stats.yml b/packages/sdk/go/.stats.yml
index db9407052..7f4a9c119 100644
--- a/packages/sdk/go/.stats.yml
+++ b/packages/sdk/go/.stats.yml
@@ -1,4 +1,4 @@
 configured_endpoints: 43
-openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/opencode%2Fopencode-46826ba8640557721614b0c9a3f1860681d825ca8d8b12869652fa25aacb0b4c.yml
-openapi_spec_hash: 33b8db6fde3021579b21325ce910197d
+openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/opencode%2Fopencode-2e754dafcad0636137256cef499b2bcd72cf17de08f44ec03c3589b2a05341a2.yml
+openapi_spec_hash: 2d3cf84d3033068ce6c07386411527ef
 config_hash: 026ef000d34bf2f930e7b41e77d2d3ff
diff --git a/packages/sdk/go/CHANGELOG.md b/packages/sdk/go/CHANGELOG.md
index fad7e6837..018017066 100644
--- a/packages/sdk/go/CHANGELOG.md
+++ b/packages/sdk/go/CHANGELOG.md
@@ -1,5 +1,37 @@
 # Changelog
 
+## 0.13.0 (2025-09-14)
+
+Full Changelog: [v0.12.0...v0.13.0](https://github.com/sst/opencode-sdk-go/compare/v0.12.0...v0.13.0)
+
+### Features
+
+- **api:** api update ([80da4fb](https://github.com/sst/opencode-sdk-go/commit/80da4fb4ea9c6afb51a7e7135d9f5560ce6f2a6c))
+
+## 0.12.0 (2025-09-14)
+
+Full Changelog: [v0.11.0...v0.12.0](https://github.com/sst/opencode-sdk-go/compare/v0.11.0...v0.12.0)
+
+### Features
+
+- **api:** api update ([7e3808b](https://github.com/sst/opencode-sdk-go/commit/7e3808ba349dc653174b32b48a1120c18d2975c2))
+
+## 0.11.0 (2025-09-14)
+
+Full Changelog: [v0.10.0...v0.11.0](https://github.com/sst/opencode-sdk-go/compare/v0.10.0...v0.11.0)
+
+### Features
+
+- **api:** api update ([a3d37f5](https://github.com/sst/opencode-sdk-go/commit/a3d37f5671545866547d351fc21b49809cc8b3c2))
+
+## 0.10.0 (2025-09-11)
+
+Full Changelog: [v0.9.0...v0.10.0](https://github.com/sst/opencode-sdk-go/compare/v0.9.0...v0.10.0)
+
+### Features
+
+- **api:** api update ([0dc01f6](https://github.com/sst/opencode-sdk-go/commit/0dc01f6695c9b8400a4dc92166c5002bb120cf50))
+
 ## 0.9.0 (2025-09-10)
 
 Full Changelog: [v0.8.0...v0.9.0](https://github.com/sst/opencode-sdk-go/compare/v0.8.0...v0.9.0)
diff --git a/packages/sdk/go/README.md b/packages/sdk/go/README.md
index 0fe3d32bf..2c48f53ce 100644
--- a/packages/sdk/go/README.md
+++ b/packages/sdk/go/README.md
@@ -24,7 +24,7 @@ Or to pin the version:
 <!-- x-release-please-start-version -->
 
 ```sh
-go get -u 'github.com/sst/[email protected]'
+go get -u 'github.com/sst/[email protected]'
 ```
 
 <!-- x-release-please-end -->
diff --git a/packages/sdk/go/aliases.go b/packages/sdk/go/aliases.go
index 6ab36d04c..50beeae91 100644
--- a/packages/sdk/go/aliases.go
+++ b/packages/sdk/go/aliases.go
@@ -13,6 +13,9 @@ type Error = apierror.Error
 type MessageAbortedError = shared.MessageAbortedError
 
 // This is an alias to an internal type.
+type MessageAbortedErrorData = shared.MessageAbortedErrorData
+
+// This is an alias to an internal type.
 type MessageAbortedErrorName = shared.MessageAbortedErrorName
 
 // This is an alias to an internal value.
diff --git a/packages/sdk/go/command.go b/packages/sdk/go/command.go
index 2638fc607..44e3beb1c 100644
--- a/packages/sdk/go/command.go
+++ b/packages/sdk/go/command.go
@@ -47,6 +47,7 @@ type Command struct {
 	Agent       string      `json:"agent"`
 	Description string      `json:"description"`
 	Model       string      `json:"model"`
+	Subtask     bool        `json:"subtask"`
 	JSON        commandJSON `json:"-"`
 }
 
@@ -57,6 +58,7 @@ type commandJSON struct {
 	Agent       apijson.Field
 	Description apijson.Field
 	Model       apijson.Field
+	Subtask     apijson.Field
 	raw         string
 	ExtraFields map[string]apijson.Field
 }
diff --git a/packages/sdk/go/config.go b/packages/sdk/go/config.go
index b79bcb2ef..d469bdff1 100644
--- a/packages/sdk/go/config.go
+++ b/packages/sdk/go/config.go
@@ -676,6 +676,7 @@ type ConfigCommand struct {
 	Agent       string            `json:"agent"`
 	Description string            `json:"description"`
 	Model       string            `json:"model"`
+	Subtask     bool              `json:"subtask"`
 	JSON        configCommandJSON `json:"-"`
 }
 
@@ -685,6 +686,7 @@ type configCommandJSON struct {
 	Agent       apijson.Field
 	Description apijson.Field
 	Model       apijson.Field
+	Subtask     apijson.Field
 	raw         string
 	ExtraFields map[string]apijson.Field
 }
@@ -698,18 +700,18 @@ func (r configCommandJSON) RawJSON() string {
 }
 
 type ConfigExperimental struct {
-	Hook                ConfigExperimentalHook `json:"hook"`
 	DisablePasteSummary bool                   `json:"disable_paste_summary"`
+	Hook                ConfigExperimentalHook `json:"hook"`
 	JSON                configExperimentalJSON `json:"-"`
 }
 
 // configExperimentalJSON contains the JSON metadata for the struct
 // [ConfigExperimental]
 type configExperimentalJSON struct {
-	Hook           apijson.Field
-	SummarizePaste apijson.Field
-	raw            string
-	ExtraFields    map[string]apijson.Field
+	DisablePasteSummary apijson.Field
+	Hook                apijson.Field
+	raw                 string
+	ExtraFields         map[string]apijson.Field
 }
 
 func (r *ConfigExperimental) UnmarshalJSON(data []byte) (err error) {
@@ -1022,16 +1024,14 @@ type ConfigMcpUnion interface {
 func init() {
 	apijson.RegisterUnion(
 		reflect.TypeOf((*ConfigMcpUnion)(nil)).Elem(),
-		"type",
+		"",
 		apijson.UnionVariant{
-			TypeFilter:         gjson.JSON,
-			Type:               reflect.TypeOf(McpLocalConfig{}),
-			DiscriminatorValue: "local",
+			TypeFilter: gjson.JSON,
+			Type:       reflect.TypeOf(McpLocalConfig{}),
 		},
 		apijson.UnionVariant{
-			TypeFilter:         gjson.JSON,
-			Type:               reflect.TypeOf(McpRemoteConfig{}),
-			DiscriminatorValue: "remote",
+			TypeFilter: gjson.JSON,
+			Type:       reflect.TypeOf(McpRemoteConfig{}),
 		},
 	)
 }
@@ -1753,15 +1753,15 @@ func (r ConfigShare) IsKnown() bool {
 // TUI specific settings
 type ConfigTui struct {
 	// TUI scroll speed
-	ScrollSpeed    float64       `json:"scroll_speed,required"`
-	JSON           configTuiJSON `json:"-"`
+	ScrollSpeed float64       `json:"scroll_speed"`
+	JSON        configTuiJSON `json:"-"`
 }
 
 // configTuiJSON contains the JSON metadata for the struct [ConfigTui]
 type configTuiJSON struct {
-	ScrollSpeed    apijson.Field
-	raw            string
-	ExtraFields    map[string]apijson.Field
+	ScrollSpeed apijson.Field
+	raw         string
+	ExtraFields map[string]apijson.Field
 }
 
 func (r *ConfigTui) UnmarshalJSON(data []byte) (err error) {
@@ -1772,105 +1772,106 @@ func (r configTuiJSON) RawJSON() string {
 	return r.raw
 }
 
+// Custom keybind configurations
 type KeybindsConfig struct {
 	// Next agent
-	AgentCycle string `json:"agent_cycle,required"`
+	AgentCycle string `json:"agent_cycle"`
 	// Previous agent
-	AgentCycleReverse string `json:"agent_cycle_reverse,required"`
+	AgentCycleReverse string `json:"agent_cycle_reverse"`
 	// List agents
-	AgentList string `json:"agent_list,required"`
+	AgentList string `json:"agent_list"`
 	// Exit the application
-	AppExit string `json:"app_exit,required"`
+	AppExit string `json:"app_exit"`
 	// Show help dialog
-	AppHelp string `json:"app_help,required"`
+	AppHelp string `json:"app_help"`
 	// Open external editor
-	EditorOpen string `json:"editor_open,required"`
+	EditorOpen string `json:"editor_open"`
 	// @deprecated Close file
-	FileClose string `json:"file_close,required"`
+	FileClose string `json:"file_close"`
 	// @deprecated Split/unified diff
-	FileDiffToggle string `json:"file_diff_toggle,required"`
+	FileDiffToggle string `json:"file_diff_toggle"`
 	// @deprecated Currently not available. List files
-	FileList string `json:"file_list,required"`
+	FileList string `json:"file_list"`
 	// @deprecated Search file
-	FileSearch string `json:"file_search,required"`
+	FileSearch string `json:"file_search"`
 	// Clear input field
-	InputClear string `json:"input_clear,required"`
+	InputClear string `json:"input_clear"`
 	// Insert newline in input
-	InputNewline string `json:"input_newline,required"`
+	InputNewline string `json:"input_newline"`
 	// Paste from clipboard
-	InputPaste string `json:"input_paste,required"`
+	InputPaste string `json:"input_paste"`
 	// Submit input
-	InputSubmit string `json:"input_submit,required"`
+	InputSubmit string `json:"input_submit"`
 	// Leader key for keybind combinations
-	Leader string `json:"leader,required"`
+	Leader string `json:"leader"`
 	// Copy message
-	MessagesCopy string `json:"messages_copy,required"`
+	MessagesCopy string `json:"messages_copy"`
 	// Navigate to first message
-	MessagesFirst string `json:"messages_first,required"`
+	MessagesFirst string `json:"messages_first"`
 	// Scroll messages down by half page
-	MessagesHalfPageDown string `json:"messages_half_page_down,required"`
+	MessagesHalfPageDown string `json:"messages_half_page_down"`
 	// Scroll messages up by half page
-	MessagesHalfPageUp string `json:"messages_half_page_up,required"`
+	MessagesHalfPageUp string `json:"messages_half_page_up"`
 	// Navigate to last message
-	MessagesLast string `json:"messages_last,required"`
+	MessagesLast string `json:"messages_last"`
 	// @deprecated Toggle layout
-	MessagesLayoutToggle string `json:"messages_layout_toggle,required"`
+	MessagesLayoutToggle string `json:"messages_layout_toggle"`
 	// @deprecated Navigate to next message
-	MessagesNext string `json:"messages_next,required"`
+	MessagesNext string `json:"messages_next"`
 	// Scroll messages down by one page
-	MessagesPageDown string `json:"messages_page_down,required"`
+	MessagesPageDown string `json:"messages_page_down"`
 	// Scroll messages up by one page
-	MessagesPageUp string `json:"messages_page_up,required"`
+	MessagesPageUp string `json:"messages_page_up"`
 	// @deprecated Navigate to previous message
-	MessagesPrevious string `json:"messages_previous,required"`
+	MessagesPrevious string `json:"messages_previous"`
 	// Redo message
-	MessagesRedo string `json:"messages_redo,required"`
+	MessagesRedo string `json:"messages_redo"`
 	// @deprecated use messages_undo. Revert message
-	MessagesRevert string `json:"messages_revert,required"`
+	MessagesRevert string `json:"messages_revert"`
 	// Undo message
-	MessagesUndo string `json:"messages_undo,required"`
+	MessagesUndo string `json:"messages_undo"`
 	// Next recent model
-	ModelCycleRecent string `json:"model_cycle_recent,required"`
+	ModelCycleRecent string `json:"model_cycle_recent"`
 	// Previous recent model
-	ModelCycleRecentReverse string `json:"model_cycle_recent_reverse,required"`
+	ModelCycleRecentReverse string `json:"model_cycle_recent_reverse"`
 	// List available models
-	ModelList string `json:"model_list,required"`
+	ModelList string `json:"model_list"`
 	// Create/update AGENTS.md
-	ProjectInit string `json:"project_init,required"`
+	ProjectInit string `json:"project_init"`
 	// Cycle to next child session
-	SessionChildCycle string `json:"session_child_cycle,required"`
+	SessionChildCycle string `json:"session_child_cycle"`
 	// Cycle to previous child session
-	SessionChildCycleReverse string `json:"session_child_cycle_reverse,required"`
+	SessionChildCycleReverse string `json:"session_child_cycle_reverse"`
 	// Compact the session
-	SessionCompact string `json:"session_compact,required"`
+	SessionCompact string `json:"session_compact"`
 	// Export session to editor
-	SessionExport string `json:"session_export,required"`
+	SessionExport string `json:"session_export"`
 	// Interrupt current session
-	SessionInterrupt string `json:"session_interrupt,required"`
+	SessionInterrupt string `json:"session_interrupt"`
 	// List all sessions
-	SessionList string `json:"session_list,required"`
+	SessionList string `json:"session_list"`
 	// Create a new session
-	SessionNew string `json:"session_new,required"`
+	SessionNew string `json:"session_new"`
 	// Share current session
-	SessionShare string `json:"session_share,required"`
+	SessionShare string `json:"session_share"`
 	// Show session timeline
-	SessionTimeline string `json:"session_timeline,required"`
+	SessionTimeline string `json:"session_timeline"`
 	// Unshare current session
-	SessionUnshare string `json:"session_unshare,required"`
+	SessionUnshare string `json:"session_unshare"`
 	// @deprecated use agent_cycle. Next agent
-	SwitchAgent string `json:"switch_agent,required"`
+	SwitchAgent string `json:"switch_agent"`
 	// @deprecated use agent_cycle_reverse. Previous agent
-	SwitchAgentReverse string `json:"switch_agent_reverse,required"`
+	SwitchAgentReverse string `json:"switch_agent_reverse"`
 	// @deprecated use agent_cycle. Next mode
-	SwitchMode string `json:"switch_mode,required"`
+	SwitchMode string `json:"switch_mode"`
 	// @deprecated use agent_cycle_reverse. Previous mode
-	SwitchModeReverse string `json:"switch_mode_reverse,required"`
+	SwitchModeReverse string `json:"switch_mode_reverse"`
 	// List available themes
-	ThemeList string `json:"theme_list,required"`
+	ThemeList string `json:"theme_list"`
 	// Toggle thinking blocks
-	ThinkingBlocks string `json:"thinking_blocks,required"`
+	ThinkingBlocks string `json:"thinking_blocks"`
 	// Toggle tool details
-	ToolDetails string             `json:"tool_details,required"`
+	ToolDetails string             `json:"tool_details"`
 	JSON        keybindsConfigJSON `json:"-"`
 }
 
diff --git a/packages/sdk/go/event.go b/packages/sdk/go/event.go
index 00ba202cc..5d3bffcc2 100644
--- a/packages/sdk/go/event.go
+++ b/packages/sdk/go/event.go
@@ -57,14 +57,14 @@ type EventListResponse struct {
 	// [EventListResponseEventMessageUpdatedProperties],
 	// [EventListResponseEventMessageRemovedProperties],
 	// [EventListResponseEventMessagePartUpdatedProperties],
-	// [EventListResponseEventMessagePartRemovedProperties], [Permission],
+	// [EventListResponseEventMessagePartRemovedProperties],
+	// [EventListResponseEventSessionCompactedProperties], [Permission],
 	// [EventListResponseEventPermissionRepliedProperties],
 	// [EventListResponseEventFileEditedProperties],
+	// [EventListResponseEventSessionIdleProperties],
 	// [EventListResponseEventSessionUpdatedProperties],
 	// [EventListResponseEventSessionDeletedProperties],
-	// [EventListResponseEventSessionIdleProperties],
-	// [EventListResponseEventSessionErrorProperties],
-	// [EventListResponseEventSessionCompactedProperties], [interface{}].
+	// [EventListResponseEventSessionErrorProperties], [interface{}].
 	Properties interface{}           `json:"properties,required"`
 	Type       EventListResponseType `json:"type,required"`
 	JSON       eventListResponseJSON `json:"-"`
@@ -102,11 +102,11 @@ func (r *EventListResponse) UnmarshalJSON(data []byte) (err error) {
 // [EventListResponseEventMessageUpdated], [EventListResponseEventMessageRemoved],
 // [EventListResponseEventMessagePartUpdated],
 // [EventListResponseEventMessagePartRemoved],
+// [EventListResponseEventSessionCompacted],
 // [EventListResponseEventPermissionUpdated],
 // [EventListResponseEventPermissionReplied], [EventListResponseEventFileEdited],
-// [EventListResponseEventSessionUpdated], [EventListResponseEventSessionDeleted],
-// [EventListResponseEventSessionIdle], [EventListResponseEventSessionError],
-// [EventListResponseEventSessionCompacted],
+// [EventListResponseEventSessionIdle], [EventListResponseEventSessionUpdated],
+// [EventListResponseEventSessionDeleted], [EventListResponseEventSessionError],
 // [EventListResponseEventServerConnected].
 func (r EventListResponse) AsUnion() EventListResponseUnion {
 	return r.union
@@ -117,11 +117,11 @@ func (r EventListResponse) AsUnion() EventListResponseUnion {
 // [EventListResponseEventMessageUpdated], [EventListResponseEventMessageRemoved],
 // [EventListResponseEventMessagePartUpdated],
 // [EventListResponseEventMessagePartRemoved],
+// [EventListResponseEventSessionCompacted],
 // [EventListResponseEventPermissionUpdated],
 // [EventListResponseEventPermissionReplied], [EventListResponseEventFileEdited],
-// [EventListResponseEventSessionUpdated], [EventListResponseEventSessionDeleted],
-// [EventListResponseEventSessionIdle], [EventListResponseEventSessionError],
-// [EventListResponseEventSessionCompacted] or
+// [EventListResponseEventSessionIdle], [EventListResponseEventSessionUpdated],
+// [EventListResponseEventSessionDeleted], [EventListResponseEventSessionError] or
 // [EventListResponseEventServerConnected].
 type EventListResponseUnion interface {
 	implementsEventListResponse()
@@ -130,81 +130,66 @@ type EventListResponseUnion interface {
 func init() {
 	apijson.RegisterUnion(
 		reflect.TypeOf((*EventListResponseUnion)(nil)).Elem(),
-		"type",
+		"",
 		apijson.UnionVariant{
-			TypeFilter:         gjson.JSON,
-			Type:               reflect.TypeOf(EventListResponseEventInstallationUpdated{}),
-			DiscriminatorValue: "installation.updated",
+			TypeFilter: gjson.JSON,
+			Type:       reflect.TypeOf(EventListResponseEventInstallationUpdated{}),
 		},
 		apijson.UnionVariant{
-			TypeFilter:         gjson.JSON,
-			Type:               reflect.TypeOf(EventListResponseEventLspClientDiagnostics{}),
-			DiscriminatorValue: "lsp.client.diagnostics",
+			TypeFilter: gjson.JSON,
+			Type:       reflect.TypeOf(EventListResponseEventLspClientDiagnostics{}),
 		},
 		apijson.UnionVariant{
-			TypeFilter:         gjson.JSON,
-			Type:               reflect.TypeOf(EventListResponseEventMessageUpdated{}),
-			DiscriminatorValue: "message.updated",
+			TypeFilter: gjson.JSON,
+			Type:       reflect.TypeOf(EventListResponseEventMessageUpdated{}),
 		},
 		apijson.UnionVariant{
-			TypeFilter:         gjson.JSON,
-			Type:               reflect.TypeOf(EventListResponseEventMessageRemoved{}),
-			DiscriminatorValue: "message.removed",
+			TypeFilter: gjson.JSON,
+			Type:       reflect.TypeOf(EventListResponseEventMessageRemoved{}),
 		},
 		apijson.UnionVariant{
-			TypeFilter:         gjson.JSON,
-			Type:               reflect.TypeOf(EventListResponseEventMessagePartUpdated{}),
-			DiscriminatorValue: "message.part.updated",
+			TypeFilter: gjson.JSON,
+			Type:       reflect.TypeOf(EventListResponseEventMessagePartUpdated{}),
 		},
 		apijson.UnionVariant{
-			TypeFilter:         gjson.JSON,
-			Type:               reflect.TypeOf(EventListResponseEventMessagePartRemoved{}),
-			DiscriminatorValue: "message.part.removed",
+			TypeFilter: gjson.JSON,
+			Type:       reflect.TypeOf(EventListResponseEventMessagePartRemoved{}),
 		},
 		apijson.UnionVariant{
-			TypeFilter:         gjson.JSON,
-			Type:               reflect.TypeOf(EventListResponseEventPermissionUpdated{}),
-			DiscriminatorValue: "permission.updated",
+			TypeFilter: gjson.JSON,
+			Type:       reflect.TypeOf(EventListResponseEventSessionCompacted{}),
 		},
 		apijson.UnionVariant{
-			TypeFilter:         gjson.JSON,
-			Type:               reflect.TypeOf(EventListResponseEventPermissionReplied{}),
-			DiscriminatorValue: "permission.replied",
+			TypeFilter: gjson.JSON,
+			Type:       reflect.TypeOf(EventListResponseEventPermissionUpdated{}),
 		},
 		apijson.UnionVariant{
-			TypeFilter:         gjson.JSON,
-			Type:               reflect.TypeOf(EventListResponseEventFileEdited{}),
-			DiscriminatorValue: "file.edited",
+			TypeFilter: gjson.JSON,
+			Type:       reflect.TypeOf(EventListResponseEventPermissionReplied{}),
 		},
 		apijson.UnionVariant{
-			TypeFilter:         gjson.JSON,
-			Type:               reflect.TypeOf(EventListResponseEventSessionUpdated{}),
-			DiscriminatorValue: "session.updated",
+			TypeFilter: gjson.JSON,
+			Type:       reflect.TypeOf(EventListResponseEventFileEdited{}),
 		},
 		apijson.UnionVariant{
-			TypeFilter:         gjson.JSON,
-			Type:               reflect.TypeOf(EventListResponseEventSessionDeleted{}),
-			DiscriminatorValue: "session.deleted",
+			TypeFilter: gjson.JSON,
+			Type:       reflect.TypeOf(EventListResponseEventSessionIdle{}),
 		},
 		apijson.UnionVariant{
-			TypeFilter:         gjson.JSON,
-			Type:               reflect.TypeOf(EventListResponseEventSessionIdle{}),
-			DiscriminatorValue: "session.idle",
+			TypeFilter: gjson.JSON,
+			Type:       reflect.TypeOf(EventListResponseEventSessionUpdated{}),
 		},
 		apijson.UnionVariant{
-			TypeFilter:         gjson.JSON,
-			Type:               reflect.TypeOf(EventListResponseEventSessionError{}),
-			DiscriminatorValue: "session.error",
+			TypeFilter: gjson.JSON,
+			Type:       reflect.TypeOf(EventListResponseEventSessionDeleted{}),
 		},
 		apijson.UnionVariant{
-			TypeFilter:         gjson.JSON,
-			Type:               reflect.TypeOf(EventListResponseEventSessionCompacted{}),
-			DiscriminatorValue: "session.compacted",
+			TypeFilter: gjson.JSON,
+			Type:       reflect.TypeOf(EventListResponseEventSessionError{}),
 		},
 		apijson.UnionVariant{
-			TypeFilter:         gjson.JSON,
-			Type:               reflect.TypeOf(EventListResponseEventServerConnected{}),
-			DiscriminatorValue: "server.connected",
+			TypeFilter: gjson.JSON,
+			Type:       reflect.TypeOf(EventListResponseEventServerConnected{}),
 		},
 	)
 }
@@ -577,6 +562,66 @@ func (r EventListResponseEventMessagePartRemovedType) IsKnown() bool {
 	return false
 }
 
+type EventListResponseEventSessionCompacted struct {
+	Properties EventListResponseEventSessionCompactedProperties `json:"properties,required"`
+	Type       EventListResponseEventSessionCompactedType       `json:"type,required"`
+	JSON       eventListResponseEventSessionCompactedJSON       `json:"-"`
+}
+
+// eventListResponseEventSessionCompactedJSON contains the JSON metadata for the
+// struct [EventListResponseEventSessionCompacted]
+type eventListResponseEventSessionCompactedJSON struct {
+	Properties  apijson.Field
+	Type        apijson.Field
+	raw         string
+	ExtraFields map[string]apijson.Field
+}
+
+func (r *EventListResponseEventSessionCompacted) UnmarshalJSON(data []byte) (err error) {
+	return apijson.UnmarshalRoot(data, r)
+}
+
+func (r eventListResponseEventSessionCompactedJSON) RawJSON() string {
+	return r.raw
+}
+
+func (r EventListResponseEventSessionCompacted) implementsEventListResponse() {}
+
+type EventListResponseEventSessionCompactedProperties struct {
+	SessionID string                                               `json:"sessionID,required"`
+	JSON      eventListResponseEventSessionCompactedPropertiesJSON `json:"-"`
+}
+
+// eventListResponseEventSessionCompactedPropertiesJSON contains the JSON metadata
+// for the struct [EventListResponseEventSessionCompactedProperties]
+type eventListResponseEventSessionCompactedPropertiesJSON struct {
+	SessionID   apijson.Field
+	raw         string
+	ExtraFields map[string]apijson.Field
+}
+
+func (r *EventListResponseEventSessionCompactedProperties) UnmarshalJSON(data []byte) (err error) {
+	return apijson.UnmarshalRoot(data, r)
+}
+
+func (r eventListResponseEventSessionCompactedPropertiesJSON) RawJSON() string {
+	return r.raw
+}
+
+type EventListResponseEventSessionCompactedType string
+
+const (
+	EventListResponseEventSessionCompactedTypeSessionCompacted EventListResponseEventSessionCompactedType = "session.compacted"
+)
+
+func (r EventListResponseEventSessionCompactedType) IsKnown() bool {
+	switch r {
+	case EventListResponseEventSessionCompactedTypeSessionCompacted:
+		return true
+	}
+	return false
+}
+
 type EventListResponseEventPermissionUpdated struct {
 	Properties Permission                                  `json:"properties,required"`
 	Type       EventListResponseEventPermissionUpdatedType `json:"type,required"`
@@ -740,6 +785,66 @@ func (r EventListResponseEventFileEditedType) IsKnown() bool {
 	return false
 }
 
+type EventListResponseEventSessionIdle struct {
+	Properties EventListResponseEventSessionIdleProperties `json:"properties,required"`
+	Type       EventListResponseEventSessionIdleType       `json:"type,required"`
+	JSON       eventListResponseEventSessionIdleJSON       `json:"-"`
+}
+
+// eventListResponseEventSessionIdleJSON contains the JSON metadata for the struct
+// [EventListResponseEventSessionIdle]
+type eventListResponseEventSessionIdleJSON struct {
+	Properties  apijson.Field
+	Type        apijson.Field
+	raw         string
+	ExtraFields map[string]apijson.Field
+}
+
+func (r *EventListResponseEventSessionIdle) UnmarshalJSON(data []byte) (err error) {
+	return apijson.UnmarshalRoot(data, r)
+}
+
+func (r eventListResponseEventSessionIdleJSON) RawJSON() string {
+	return r.raw
+}
+
+func (r EventListResponseEventSessionIdle) implementsEventListResponse() {}
+
+type EventListResponseEventSessionIdleProperties struct {
+	SessionID string                                          `json:"sessionID,required"`
+	JSON      eventListResponseEventSessionIdlePropertiesJSON `json:"-"`
+}
+
+// eventListResponseEventSessionIdlePropertiesJSON contains the JSON metadata for
+// the struct [EventListResponseEventSessionIdleProperties]
+type eventListResponseEventSessionIdlePropertiesJSON struct {
+	SessionID   apijson.Field
+	raw         string
+	ExtraFields map[string]apijson.Field
+}
+
+func (r *EventListResponseEventSessionIdleProperties) UnmarshalJSON(data []byte) (err error) {
+	return apijson.UnmarshalRoot(data, r)
+}
+
+func (r eventListResponseEventSessionIdlePropertiesJSON) RawJSON() string {
+	return r.raw
+}
+
+type EventListResponseEventSessionIdleType string
+
+const (
+	EventListResponseEventSessionIdleTypeSessionIdle EventListResponseEventSessionIdleType = "session.idle"
+)
+
+func (r EventListResponseEventSessionIdleType) IsKnown() bool {
+	switch r {
+	case EventListResponseEventSessionIdleTypeSessionIdle:
+		return true
+	}
+	return false
+}
+
 type EventListResponseEventSessionUpdated struct {
 	Properties EventListResponseEventSessionUpdatedProperties `json:"properties,required"`
 	Type       EventListResponseEventSessionUpdatedType       `json:"type,required"`
@@ -860,66 +965,6 @@ func (r EventListResponseEventSessionDeletedType) IsKnown() bool {
 	return false
 }
 
-type EventListResponseEventSessionIdle struct {
-	Properties EventListResponseEventSessionIdleProperties `json:"properties,required"`
-	Type       EventListResponseEventSessionIdleType       `json:"type,required"`
-	JSON       eventListResponseEventSessionIdleJSON       `json:"-"`
-}
-
-// eventListResponseEventSessionIdleJSON contains the JSON metadata for the struct
-// [EventListResponseEventSessionIdle]
-type eventListResponseEventSessionIdleJSON struct {
-	Properties  apijson.Field
-	Type        apijson.Field
-	raw         string
-	ExtraFields map[string]apijson.Field
-}
-
-func (r *EventListResponseEventSessionIdle) UnmarshalJSON(data []byte) (err error) {
-	return apijson.UnmarshalRoot(data, r)
-}
-
-func (r eventListResponseEventSessionIdleJSON) RawJSON() string {
-	return r.raw
-}
-
-func (r EventListResponseEventSessionIdle) implementsEventListResponse() {}
-
-type EventListResponseEventSessionIdleProperties struct {
-	SessionID string                                          `json:"sessionID,required"`
-	JSON      eventListResponseEventSessionIdlePropertiesJSON `json:"-"`
-}
-
-// eventListResponseEventSessionIdlePropertiesJSON contains the JSON metadata for
-// the struct [EventListResponseEventSessionIdleProperties]
-type eventListResponseEventSessionIdlePropertiesJSON struct {
-	SessionID   apijson.Field
-	raw         string
-	ExtraFields map[string]apijson.Field
-}
-
-func (r *EventListResponseEventSessionIdleProperties) UnmarshalJSON(data []byte) (err error) {
-	return apijson.UnmarshalRoot(data, r)
-}
-
-func (r eventListResponseEventSessionIdlePropertiesJSON) RawJSON() string {
-	return r.raw
-}
-
-type EventListResponseEventSessionIdleType string
-
-const (
-	EventListResponseEventSessionIdleTypeSessionIdle EventListResponseEventSessionIdleType = "session.idle"
-)
-
-func (r EventListResponseEventSessionIdleType) IsKnown() bool {
-	switch r {
-	case EventListResponseEventSessionIdleTypeSessionIdle:
-		return true
-	}
-	return false
-}
-
 type EventListResponseEventSessionError struct {
 	Properties EventListResponseEventSessionErrorProperties `json:"properties,required"`
 	Type       EventListResponseEventSessionErrorType       `json:"type,required"`
@@ -970,7 +1015,7 @@ func (r eventListResponseEventSessionErrorPropertiesJSON) RawJSON() string {
 
 type EventListResponseEventSessionErrorPropertiesError struct {
 	// This field can have the runtime type of [shared.ProviderAuthErrorData],
-	// [shared.UnknownErrorData], [interface{}].
+	// [shared.UnknownErrorData], [interface{}], [shared.MessageAbortedErrorData].
 	Data  interface{}                                           `json:"data,required"`
 	Name  EventListResponseEventSessionErrorPropertiesErrorName `json:"name,required"`
 	JSON  eventListResponseEventSessionErrorPropertiesErrorJSON `json:"-"`
@@ -1020,26 +1065,22 @@ type EventListResponseEventSessionErrorPropertiesErrorUnion interface {
 func init() {
 	apijson.RegisterUnion(
 		reflect.TypeOf((*EventListResponseEventSessionErrorPropertiesErrorUnion)(nil)).Elem(),
-		"name",
+		"",
 		apijson.UnionVariant{
-			TypeFilter:         gjson.JSON,
-			Type:               reflect.TypeOf(shared.ProviderAuthError{}),
-			DiscriminatorValue: "ProviderAuthError",
+			TypeFilter: gjson.JSON,
+			Type:       reflect.TypeOf(shared.ProviderAuthError{}),
 		},
 		apijson.UnionVariant{
-			TypeFilter:         gjson.JSON,
-			Type:               reflect.TypeOf(shared.UnknownError{}),
-			DiscriminatorValue: "UnknownError",
+			TypeFilter: gjson.JSON,
+			Type:       reflect.TypeOf(shared.UnknownError{}),
 		},
 		apijson.UnionVariant{
-			TypeFilter:         gjson.JSON,
-			Type:               reflect.TypeOf(EventListResponseEventSessionErrorPropertiesErrorMessageOutputLengthError{}),
-			DiscriminatorValue: "MessageOutputLengthError",
+			TypeFilter: gjson.JSON,
+			Type:       reflect.TypeOf(EventListResponseEventSessionErrorPropertiesErrorMessageOutputLengthError{}),
 		},
 		apijson.UnionVariant{
-			TypeFilter:         gjson.JSON,
-			Type:               reflect.TypeOf(shared.MessageAbortedError{}),
-			DiscriminatorValue: "MessageAbortedError",
+			TypeFilter: gjson.JSON,
+			Type:       reflect.TypeOf(shared.MessageAbortedError{}),
 		},
 	)
 }
@@ -1116,66 +1157,6 @@ func (r EventListResponseEventSessionErrorType) IsKnown() bool {
 	return false
 }
 
-type EventListResponseEventSessionCompacted struct {
-	Properties EventListResponseEventSessionCompactedProperties `json:"properties,required"`
-	Type       EventListResponseEventSessionCompactedType       `json:"type,required"`
-	JSON       eventListResponseEventSessionCompactedJSON       `json:"-"`
-}
-
-// eventListResponseEventSessionCompactedJSON contains the JSON metadata for the
-// struct [EventListResponseEventSessionCompacted]
-type eventListResponseEventSessionCompactedJSON struct {
-	Properties  apijson.Field
-	Type        apijson.Field
-	raw         string
-	ExtraFields map[string]apijson.Field
-}
-
-func (r *EventListResponseEventSessionCompacted) UnmarshalJSON(data []byte) (err error) {
-	return apijson.UnmarshalRoot(data, r)
-}
-
-func (r eventListResponseEventSessionCompactedJSON) RawJSON() string {
-	return r.raw
-}
-
-func (r EventListResponseEventSessionCompacted) implementsEventListResponse() {}
-
-type EventListResponseEventSessionCompactedProperties struct {
-	SessionID string                                               `json:"sessionID,required"`
-	JSON      eventListResponseEventSessionCompactedPropertiesJSON `json:"-"`
-}
-
-// eventListResponseEventSessionCompactedPropertiesJSON contains the JSON metadata
-// for the struct [EventListResponseEventSessionCompactedProperties]
-type eventListResponseEventSessionCompactedPropertiesJSON struct {
-	SessionID   apijson.Field
-	raw         string
-	ExtraFields map[string]apijson.Field
-}
-
-func (r *EventListResponseEventSessionCompactedProperties) UnmarshalJSON(data []byte) (err error) {
-	return apijson.UnmarshalRoot(data, r)
-}
-
-func (r eventListResponseEventSessionCompactedPropertiesJSON) RawJSON() string {
-	return r.raw
-}
-
-type EventListResponseEventSessionCompactedType string
-
-const (
-	EventListResponseEventSessionCompactedTypeSessionCompacted EventListResponseEventSessionCompactedType = "session.compacted"
-)
-
-func (r EventListResponseEventSessionCompactedType) IsKnown() bool {
-	switch r {
-	case EventListResponseEventSessionCompactedTypeSessionCompacted:
-		return true
-	}
-	return false
-}
-
 type EventListResponseEventServerConnected struct {
 	Properties interface{}                               `json:"properties,required"`
 	Type       EventListResponseEventServerConnectedType `json:"type,required"`
@@ -1224,20 +1205,20 @@ const (
 	EventListResponseTypeMessageRemoved       EventListResponseType = "message.removed"
 	EventListResponseTypeMessagePartUpdated   EventListResponseType = "message.part.updated"
 	EventListResponseTypeMessagePartRemoved   EventListResponseType = "message.part.removed"
+	EventListResponseTypeSessionCompacted     EventListResponseType = "session.compacted"
 	EventListResponseTypePermissionUpdated    EventListResponseType = "permission.updated"
 	EventListResponseTypePermissionReplied    EventListResponseType = "permission.replied"
 	EventListResponseTypeFileEdited           EventListResponseType = "file.edited"
+	EventListResponseTypeSessionIdle          EventListResponseType = "session.idle"
 	EventListResponseTypeSessionUpdated       EventListResponseType = "session.updated"
 	EventListResponseTypeSessionDeleted       EventListResponseType = "session.deleted"
-	EventListResponseTypeSessionIdle          EventListResponseType = "session.idle"
 	EventListResponseTypeSessionError         EventListResponseType = "session.error"
-	EventListResponseTypeSessionCompacted     EventListResponseType = "session.compacted"
 	EventListResponseTypeServerConnected      EventListResponseType = "server.connected"
 )
 
 func (r EventListResponseType) IsKnown() bool {
 	switch r {
-	case EventListResponseTypeInstallationUpdated, EventListResponseTypeLspClientDiagnostics, EventListResponseTypeMessageUpdated, EventListResponseTypeMessageRemoved, EventListResponseTypeMessagePartUpdated, EventListResponseTypeMessagePartRemoved, EventListResponseTypePermissionUpdated, EventListResponseTypePermissionReplied, EventListResponseTypeFileEdited, EventListResponseTypeSessionUpdated, EventListResponseTypeSessionDeleted, EventListResponseTypeSessionIdle, EventListResponseTypeSessionError, EventListResponseTypeSessionCompacted, EventListResponseTypeServerConnected:
+	case EventListResponseTypeInstallationUpdated, EventListResponseTypeLspClientDiagnostics, EventListResponseTypeMessageUpdated, EventListResponseTypeMessageRemoved, EventListResponseTypeMessagePartUpdated, EventListResponseTypeMessagePartRemoved, EventListResponseTypeSessionCompacted, EventListResponseTypePermissionUpdated, EventListResponseTypePermissionReplied, EventListResponseTypeFileEdited, EventListResponseTypeSessionIdle, EventListResponseTypeSessionUpdated, EventListResponseTypeSessionDeleted, EventListResponseTypeSessionError, EventListResponseTypeServerConnected:
 		return true
 	}
 	return false
diff --git a/packages/sdk/go/internal/version.go b/packages/sdk/go/internal/version.go
index 0e818c5b2..871f0965d 100644
--- a/packages/sdk/go/internal/version.go
+++ b/packages/sdk/go/internal/version.go
@@ -2,4 +2,4 @@
 
 package internal
 
-const PackageVersion = "0.9.0" // x-release-please-version
+const PackageVersion = "0.13.0" // x-release-please-version
diff --git a/packages/sdk/go/session.go b/packages/sdk/go/session.go
index 6696e0faf..260724e9a 100644
--- a/packages/sdk/go/session.go
+++ b/packages/sdk/go/session.go
@@ -518,7 +518,7 @@ func (r assistantMessageTokensCacheJSON) RawJSON() string {
 
 type AssistantMessageError struct {
 	// This field can have the runtime type of [shared.ProviderAuthErrorData],
-	// [shared.UnknownErrorData], [interface{}].
+	// [shared.UnknownErrorData], [interface{}], [shared.MessageAbortedErrorData].
 	Data  interface{}               `json:"data,required"`
 	Name  AssistantMessageErrorName `json:"name,required"`
 	JSON  assistantMessageErrorJSON `json:"-"`
@@ -566,26 +566,22 @@ type AssistantMessageErrorUnion interface {
 func init() {
 	apijson.RegisterUnion(
 		reflect.TypeOf((*AssistantMessageErrorUnion)(nil)).Elem(),
-		"name",
+		"",
 		apijson.UnionVariant{
-			TypeFilter:         gjson.JSON,
-			Type:               reflect.TypeOf(shared.ProviderAuthError{}),
-			DiscriminatorValue: "ProviderAuthError",
+			TypeFilter: gjson.JSON,
+			Type:       reflect.TypeOf(shared.ProviderAuthError{}),
 		},
 		apijson.UnionVariant{
-			TypeFilter:         gjson.JSON,
-			Type:               reflect.TypeOf(shared.UnknownError{}),
-			DiscriminatorValue: "UnknownError",
+			TypeFilter: gjson.JSON,
+			Type:       reflect.TypeOf(shared.UnknownError{}),
 		},
 		apijson.UnionVariant{
-			TypeFilter:         gjson.JSON,
-			Type:               reflect.TypeOf(AssistantMessageErrorMessageOutputLengthError{}),
-			DiscriminatorValue: "MessageOutputLengthError",
+			TypeFilter: gjson.JSON,
+			Type:       reflect.TypeOf(AssistantMessageErrorMessageOutputLengthError{}),
 		},
 		apijson.UnionVariant{
-			TypeFilter:         gjson.JSON,
-			Type:               reflect.TypeOf(shared.MessageAbortedError{}),
-			DiscriminatorValue: "MessageAbortedError",
+			TypeFilter: gjson.JSON,
+			Type:       reflect.TypeOf(shared.MessageAbortedError{}),
 		},
 	)
 }
@@ -778,16 +774,14 @@ type FilePartSourceUnion interface {
 func init() {
 	apijson.RegisterUnion(
 		reflect.TypeOf((*FilePartSourceUnion)(nil)).Elem(),
-		"type",
+		"",
 		apijson.UnionVariant{
-			TypeFilter:         gjson.JSON,
-			Type:               reflect.TypeOf(FileSource{}),
-			DiscriminatorValue: "file",
+			TypeFilter: gjson.JSON,
+			Type:       reflect.TypeOf(FileSource{}),
 		},
 		apijson.UnionVariant{
-			TypeFilter:         gjson.JSON,
-			Type:               reflect.TypeOf(SymbolSource{}),
-			DiscriminatorValue: "symbol",
+			TypeFilter: gjson.JSON,
+			Type:       reflect.TypeOf(SymbolSource{}),
 		},
 	)
 }
@@ -986,16 +980,14 @@ type MessageUnion interface {
 func init() {
 	apijson.RegisterUnion(
 		reflect.TypeOf((*MessageUnion)(nil)).Elem(),
-		"role",
+		"",
 		apijson.UnionVariant{
-			TypeFilter:         gjson.JSON,
-			Type:               reflect.TypeOf(UserMessage{}),
-			DiscriminatorValue: "user",
+			TypeFilter: gjson.JSON,
+			Type:       reflect.TypeOf(UserMessage{}),
 		},
 		apijson.UnionVariant{
-			TypeFilter:         gjson.JSON,
-			Type:               reflect.TypeOf(AssistantMessage{}),
-			DiscriminatorValue: "assistant",
+			TypeFilter: gjson.JSON,
+			Type:       reflect.TypeOf(AssistantMessage{}),
 		},
 	)
 }
@@ -1107,51 +1099,42 @@ type PartUnion interface {
 func init() {
 	apijson.RegisterUnion(
 		reflect.TypeOf((*PartUnion)(nil)).Elem(),
-		"type",
+		"",
 		apijson.UnionVariant{
-			TypeFilter:         gjson.JSON,
-			Type:               reflect.TypeOf(TextPart{}),
-			DiscriminatorValue: "text",
+			TypeFilter: gjson.JSON,
+			Type:       reflect.TypeOf(TextPart{}),
 		},
 		apijson.UnionVariant{
-			TypeFilter:         gjson.JSON,
-			Type:               reflect.TypeOf(ReasoningPart{}),
-			DiscriminatorValue: "reasoning",
+			TypeFilter: gjson.JSON,
+			Type:       reflect.TypeOf(ReasoningPart{}),
 		},
 		apijson.UnionVariant{
-			TypeFilter:         gjson.JSON,
-			Type:               reflect.TypeOf(FilePart{}),
-			DiscriminatorValue: "file",
+			TypeFilter: gjson.JSON,
+			Type:       reflect.TypeOf(FilePart{}),
 		},
 		apijson.UnionVariant{
-			TypeFilter:         gjson.JSON,
-			Type:               reflect.TypeOf(ToolPart{}),
-			DiscriminatorValue: "tool",
+			TypeFilter: gjson.JSON,
+			Type:       reflect.TypeOf(ToolPart{}),
 		},
 		apijson.UnionVariant{
-			TypeFilter:         gjson.JSON,
-			Type:               reflect.TypeOf(StepStartPart{}),
-			DiscriminatorValue: "step-start",
+			TypeFilter: gjson.JSON,
+			Type:       reflect.TypeOf(StepStartPart{}),
 		},
 		apijson.UnionVariant{
-			TypeFilter:         gjson.JSON,
-			Type:               reflect.TypeOf(StepFinishPart{}),
-			DiscriminatorValue: "step-finish",
+			TypeFilter: gjson.JSON,
+			Type:       reflect.TypeOf(StepFinishPart{}),
 		},
 		apijson.UnionVariant{
-			TypeFilter:         gjson.JSON,
-			Type:               reflect.TypeOf(SnapshotPart{}),
-			DiscriminatorValue: "snapshot",
+			TypeFilter: gjson.JSON,
+			Type:       reflect.TypeOf(SnapshotPart{}),
 		},
 		apijson.UnionVariant{
-			TypeFilter:         gjson.JSON,
-			Type:               reflect.TypeOf(PartPatchPart{}),
-			DiscriminatorValue: "patch",
+			TypeFilter: gjson.JSON,
+			Type:       reflect.TypeOf(PartPatchPart{}),
 		},
 		apijson.UnionVariant{
-			TypeFilter:         gjson.JSON,
-			Type:               reflect.TypeOf(AgentPart{}),
-			DiscriminatorValue: "agent",
+			TypeFilter: gjson.JSON,
+			Type:       reflect.TypeOf(AgentPart{}),
 		},
 	)
 }
@@ -1941,26 +1924,22 @@ type ToolPartStateUnion interface {
 func init() {
 	apijson.RegisterUnion(
 		reflect.TypeOf((*ToolPartStateUnion)(nil)).Elem(),
-		"status",
+		"",
 		apijson.UnionVariant{
-			TypeFilter:         gjson.JSON,
-			Type:               reflect.TypeOf(ToolStatePending{}),
-			DiscriminatorValue: "pending",
+			TypeFilter: gjson.JSON,
+			Type:       reflect.TypeOf(ToolStatePending{}),
 		},
 		apijson.UnionVariant{
-			TypeFilter:         gjson.JSON,
-			Type:               reflect.TypeOf(ToolStateRunning{}),
-			DiscriminatorValue: "running",
+			TypeFilter: gjson.JSON,
+			Type:       reflect.TypeOf(ToolStateRunning{}),
 		},
 		apijson.UnionVariant{
-			TypeFilter:         gjson.JSON,
-			Type:               reflect.TypeOf(ToolStateCompleted{}),
-			DiscriminatorValue: "completed",
+			TypeFilter: gjson.JSON,
+			Type:       reflect.TypeOf(ToolStateCompleted{}),
 		},
 		apijson.UnionVariant{
-			TypeFilter:         gjson.JSON,
-			Type:               reflect.TypeOf(ToolStateError{}),
-			DiscriminatorValue: "error",
+			TypeFilter: gjson.JSON,
+			Type:       reflect.TypeOf(ToolStateError{}),
 		},
 	)
 }
@@ -2044,9 +2023,10 @@ func (r ToolStateCompletedStatus) IsKnown() bool {
 }
 
 type ToolStateCompletedTime struct {
-	End   float64                    `json:"end,required"`
-	Start float64                    `json:"start,required"`
-	JSON  toolStateCompletedTimeJSON `json:"-"`
+	End       float64                    `json:"end,required"`
+	Start     float64                    `json:"start,required"`
+	Compacted float64                    `json:"compacted"`
+	JSON      toolStateCompletedTimeJSON `json:"-"`
 }
 
 // toolStateCompletedTimeJSON contains the JSON metadata for the struct
@@ -2054,6 +2034,7 @@ type ToolStateCompletedTime struct {
 type toolStateCompletedTimeJSON struct {
 	End         apijson.Field
 	Start       apijson.Field
+	Compacted   apijson.Field
 	raw         string
 	ExtraFields map[string]apijson.Field
 }
@@ -2171,9 +2152,9 @@ func (r ToolStatePendingStatus) IsKnown() bool {
 }
 
 type ToolStateRunning struct {
+	Input    interface{}            `json:"input,required"`
 	Status   ToolStateRunningStatus `json:"status,required"`
 	Time     ToolStateRunningTime   `json:"time,required"`
-	Input    interface{}            `json:"input"`
 	Metadata map[string]interface{} `json:"metadata"`
 	Title    string                 `json:"title"`
 	JSON     toolStateRunningJSON   `json:"-"`
@@ -2182,9 +2163,9 @@ type ToolStateRunning struct {
 // toolStateRunningJSON contains the JSON metadata for the struct
 // [ToolStateRunning]
 type toolStateRunningJSON struct {
+	Input       apijson.Field
 	Status      apijson.Field
 	Time        apijson.Field
-	Input       apijson.Field
 	Metadata    apijson.Field
 	Title       apijson.Field
 	raw         string
diff --git a/packages/sdk/go/session_test.go b/packages/sdk/go/session_test.go
index f4cbc04b1..61404d8b5 100644
--- a/packages/sdk/go/session_test.go
+++ b/packages/sdk/go/session_test.go
@@ -196,7 +196,7 @@ func TestSessionCommandWithOptionalParams(t *testing.T) {
 			Command:   opencode.F("command"),
 			Directory: opencode.F("directory"),
 			Agent:     opencode.F("agent"),
-			MessageID: opencode.F("msg"),
+			MessageID: opencode.F("msgJ!"),
 			Model:     opencode.F("model"),
 		},
 	)
@@ -353,7 +353,7 @@ func TestSessionPromptWithOptionalParams(t *testing.T) {
 			}}),
 			Directory: opencode.F("directory"),
 			Agent:     opencode.F("agent"),
-			MessageID: opencode.F("msg"),
+			MessageID: opencode.F("msgJ!"),
 			Model: opencode.F(opencode.SessionPromptParamsModel{
 				ModelID:    opencode.F("modelID"),
 				ProviderID: opencode.F("providerID"),
@@ -389,9 +389,9 @@ func TestSessionRevertWithOptionalParams(t *testing.T) {
 		context.TODO(),
 		"id",
 		opencode.SessionRevertParams{
-			MessageID: opencode.F("msg"),
+			MessageID: opencode.F("msgJ!"),
 			Directory: opencode.F("directory"),
-			PartID:    opencode.F("prt"),
+			PartID:    opencode.F("prtJ!"),
 		},
 	)
 	if err != nil {
diff --git a/packages/sdk/go/shared/shared.go b/packages/sdk/go/shared/shared.go
index 58baf3d9c..f2c6db0d1 100644
--- a/packages/sdk/go/shared/shared.go
+++ b/packages/sdk/go/shared/shared.go
@@ -7,7 +7,7 @@ import (
 )
 
 type MessageAbortedError struct {
-	Data interface{}             `json:"data,required"`
+	Data MessageAbortedErrorData `json:"data,required"`
 	Name MessageAbortedErrorName `json:"name,required"`
 	JSON messageAbortedErrorJSON `json:"-"`
 }
@@ -33,6 +33,27 @@ func (r MessageAbortedError) ImplementsEventListResponseEventSessionErrorPropert
 
 func (r MessageAbortedError) ImplementsAssistantMessageError() {}
 
+type MessageAbortedErrorData struct {
+	Message string                      `json:"message,required"`
+	JSON    messageAbortedErrorDataJSON `json:"-"`
+}
+
+// messageAbortedErrorDataJSON contains the JSON metadata for the struct
+// [MessageAbortedErrorData]
+type messageAbortedErrorDataJSON struct {
+	Message     apijson.Field
+	raw         string
+	ExtraFields map[string]apijson.Field
+}
+
+func (r *MessageAbortedErrorData) UnmarshalJSON(data []byte) (err error) {
+	return apijson.UnmarshalRoot(data, r)
+}
+
+func (r messageAbortedErrorDataJSON) RawJSON() string {
+	return r.raw
+}
+
 type MessageAbortedErrorName string
 
 const (