refactor(schema): extract public event definitions (#33579)

packages/opencode/src/session/compaction.ts

@@ -23,17 +23,10 @@ import { SessionEvent } from "@opencode-ai/core/session/event"
 import { SessionMessage } from "@opencode-ai/core/session/message"
 import { ProviderV2 } from "@opencode-ai/core/provider"
 import { ModelV2 } from "@opencode-ai/core/model"
-import { EventV2 } from "@opencode-ai/core/event"
 import { buildPrompt } from "@opencode-ai/core/session/compaction"
+import { SessionCompactionEvent } from "@opencode-ai/schema/session-compaction-event"
 
-export const Event = {
-  Compacted: EventV2.define({
-    type: "session.compacted",
-    schema: {
-      sessionID: SessionID,
-    },
-  }),
-}
+export const Event = SessionCompactionEvent
 
 export const PRUNE_MINIMUM = 20_000
 export const PRUNE_PROTECT = 40_000

packages/opencode/src/session/message-v2.ts

@@ -1,5 +1,4 @@
-import { EventV2 } from "@opencode-ai/core/event"
-import { SessionID, MessageID, PartID } from "./schema"
+import { SessionID, MessageID } from "./schema"
 import { SessionV1 } from "@opencode-ai/core/v1/session"
 import { ProviderV2 } from "@opencode-ai/core/provider"
 import {
@@ -12,11 +11,9 @@ import {
   Info,
   OutputLengthError,
   Part,
-  StructuredOutputError,
   SubtaskPart,
   User,
   WithParts,
-  type ToolPart,
 } from "@opencode-ai/core/v1/session"
 
 import { NamedError } from "@opencode-ai/core/util/error"
@@ -61,16 +58,7 @@ export const Event = {
   Updated: SessionV1.Event.MessageUpdated,
   Removed: SessionV1.Event.MessageRemoved,
   PartUpdated: SessionV1.Event.PartUpdated,
-  PartDelta: EventV2.define({
-    type: "message.part.delta",
-    schema: {
-      sessionID: SessionID,
-      messageID: MessageID,
-      partID: PartID,
-      field: Schema.String,
-      delta: Schema.String,
-    },
-  }),
+  PartDelta: SessionV1.Event.PartDelta,
   PartRemoved: SessionV1.Event.PartRemoved,
 }
 

packages/opencode/src/session/session.ts

@@ -11,7 +11,6 @@ import { InstallationVersion } from "@opencode-ai/core/installation/version"
 import { Database } from "@opencode-ai/core/database/database"
 import { makeRuntime } from "@opencode-ai/core/effect/runtime"
 import { EventV2Bridge } from "@/event-v2-bridge"
-import { EventV2 } from "@opencode-ai/core/event"
 import { SessionV2 } from "@opencode-ai/core/session"
 import { SessionExecution } from "@opencode-ai/core/session/execution"
 
@@ -38,7 +37,6 @@ import { WorkspaceV2 } from "@opencode-ai/core/workspace"
 import { SessionID, MessageID, PartID } from "./schema"
 
 import type { Provider } from "@/provider/provider"
-import { Permission } from "@/permission"
 import { Global } from "@opencode-ai/core/global"
 import { Effect, Layer, Option, Context, Schema, Types } from "effect"
 import { NonNegativeInt, optionalOmitUndefined } from "@opencode-ai/core/schema"
@@ -309,69 +307,12 @@ export type GlobalListInput = {
   archived?: boolean
 }
 
-const CreatedEventSchema = Schema.Struct({
-  sessionID: SessionID,
-  info: Info,
-})
-
-const UpdatedShare = Schema.Struct({
-  url: Schema.optional(Schema.NullOr(Schema.String)),
-})
-
-const UpdatedTime = Schema.Struct({
-  created: Schema.optional(Schema.NullOr(NonNegativeInt)),
-  updated: Schema.optional(Schema.NullOr(NonNegativeInt)),
-  compacting: Schema.optional(Schema.NullOr(NonNegativeInt)),
-  archived: Schema.optional(Schema.NullOr(ArchivedTimestamp)),
-})
-
-const UpdatedInfo = Schema.Struct({
-  id: Schema.optional(Schema.NullOr(SessionID)),
-  slug: Schema.optional(Schema.NullOr(Schema.String)),
-  projectID: Schema.optional(Schema.NullOr(ProjectV2.ID)),
-  workspaceID: Schema.optional(Schema.NullOr(WorkspaceV2.ID)),
-  directory: Schema.optional(Schema.NullOr(Schema.String)),
-  path: Schema.optional(Schema.NullOr(Schema.String)),
-  parentID: Schema.optional(Schema.NullOr(SessionID)),
-  summary: Schema.optional(Schema.NullOr(Summary)),
-  cost: Schema.optional(Schema.Finite),
-  tokens: Schema.optional(Tokens),
-  share: Schema.optional(UpdatedShare),
-  title: Schema.optional(Schema.NullOr(Schema.String)),
-  agent: Schema.optional(Schema.NullOr(Schema.String)),
-  model: Schema.optional(Schema.NullOr(Model)),
-  version: Schema.optional(Schema.NullOr(Schema.String)),
-  metadata: Schema.optional(Schema.NullOr(Metadata)),
-  time: Schema.optional(UpdatedTime),
-  permission: Schema.optional(Schema.NullOr(PermissionV1.Ruleset)),
-  revert: Schema.optional(Schema.NullOr(Revert)),
-})
-
-const UpdatedEventSchema = Schema.Struct({
-  sessionID: SessionID,
-  info: UpdatedInfo,
-})
-
 export const Event = {
   Created: SessionV1.Event.Created,
   Updated: SessionV1.Event.Updated,
   Deleted: SessionV1.Event.Deleted,
-  Diff: EventV2.define({
-    type: "session.diff",
-    schema: {
-      sessionID: SessionID,
-      diff: Schema.Array(Snapshot.FileDiff),
-    },
-  }),
-  Error: EventV2.define({
-    type: "session.error",
-    schema: {
-      sessionID: Schema.optional(SessionID),
-      // Reuses SessionV1.Assistant.fields.error (already Schema.optional) so
-      // the derived schema keeps the same discriminated-union shape on the event stream.
-      error: SessionV1.Assistant.fields.error,
-    },
-  }),
+  Diff: SessionV1.Event.Diff,
+  Error: SessionV1.Event.Error,
 }
 
 export function plan(input: { slug: string; time: { created: number } }, instance: InstanceContext) {

packages/opencode/src/session/status.ts

@@ -1,53 +1,14 @@
 import { LayerNode } from "@opencode-ai/core/effect/layer-node"
 import { InstanceState } from "@/effect/instance-state"
 import { SessionID } from "./schema"
-import { NonNegativeInt } from "@opencode-ai/core/schema"
-import { Effect, Layer, Context, Schema } from "effect"
+import { Effect, Layer, Context } from "effect"
 import { EventV2Bridge } from "@/event-v2-bridge"
-import { EventV2 } from "@opencode-ai/core/event"
+import { SessionStatusEvent } from "@opencode-ai/schema/session-status-event"
 
-export const Info = Schema.Union([
-  Schema.Struct({
-    type: Schema.Literal("idle"),
-  }),
-  Schema.Struct({
-    type: Schema.Literal("retry"),
-    attempt: NonNegativeInt,
-    message: Schema.String,
-    action: Schema.optional(
-      Schema.Struct({
-        reason: Schema.String,
-        provider: Schema.String,
-        title: Schema.String,
-        message: Schema.String,
-        label: Schema.String,
-        link: Schema.optional(Schema.String),
-      }),
-    ),
-    next: NonNegativeInt,
-  }),
-  Schema.Struct({
-    type: Schema.Literal("busy"),
-  }),
-]).annotate({ identifier: "SessionStatus" })
-export type Info = Schema.Schema.Type<typeof Info>
+export const Info = SessionStatusEvent.Info
+export type Info = SessionStatusEvent.Info
 
-export const Event = {
-  Status: EventV2.define({
-    type: "session.status",
-    schema: {
-      sessionID: SessionID,
-      status: Info,
-    },
-  }),
-  // deprecated
-  Idle: EventV2.define({
-    type: "session.idle",
-    schema: {
-      sessionID: SessionID,
-    },
-  }),
-}
+export const Event = SessionStatusEvent
 
 export interface Interface {
   readonly get: (sessionID: SessionID) => Effect.Effect<Info>

packages/opencode/src/session/todo.ts

@@ -1,31 +1,17 @@
 import { LayerNode } from "@opencode-ai/core/effect/layer-node"
 import { SessionID } from "./schema"
-import { Effect, Layer, Context, Schema } from "effect"
+import { Effect, Layer, Context } from "effect"
 import { Database } from "@opencode-ai/core/database/database"
 import { eq } from "drizzle-orm"
 import { asc } from "drizzle-orm"
 import { TodoTable } from "@opencode-ai/core/session/sql"
 import { EventV2Bridge } from "@/event-v2-bridge"
-import { EventV2 } from "@opencode-ai/core/event"
+import { SessionTodo } from "@opencode-ai/schema/session-todo"
 
-export const Info = Schema.Struct({
-  content: Schema.String.annotate({ description: "Brief description of the task" }),
-  status: Schema.String.annotate({
-    description: "Current status of the task: pending, in_progress, completed, cancelled",
-  }),
-  priority: Schema.String.annotate({ description: "Priority level of the task: high, medium, low" }),
-}).annotate({ identifier: "Todo" })
-export type Info = Schema.Schema.Type<typeof Info>
+export const Info = SessionTodo.Info
+export type Info = SessionTodo.Info
 
-export const Event = {
-  Updated: EventV2.define({
-    type: "todo.updated",
-    schema: {
-      sessionID: SessionID,
-      todos: Schema.Array(Info),
-    },
-  }),
-}
+export const Event = SessionTodo.Event
 
 export interface Interface {
   readonly update: (input: { sessionID: SessionID; todos: Info[] }) => Effect.Effect<void>