Delete named schema error wrapper (#27066)

packages/opencode/src/provider/auth.ts

@@ -1,7 +1,7 @@
 import type { AuthOAuthResult, Hooks } from "@opencode-ai/plugin"
 import { Auth } from "@/auth"
 import { InstanceState } from "@/effect/instance-state"
-import { namedSchemaError } from "@/util/named-schema-error"
+import { NamedError } from "@opencode-ai/core/util/error"
 import { optionalOmitUndefined } from "@opencode-ai/core/schema"
 import { Plugin } from "../plugin"
 import { ProviderID } from "./schema"
@@ -64,13 +64,13 @@ export const CallbackInput = Schema.Struct({
 })
 export type CallbackInput = Schema.Schema.Type<typeof CallbackInput>
 
-export const OauthMissing = namedSchemaError("ProviderAuthOauthMissing", { providerID: ProviderID })
+export const OauthMissing = NamedError.create("ProviderAuthOauthMissing", { providerID: ProviderID })
 
-export const OauthCodeMissing = namedSchemaError("ProviderAuthOauthCodeMissing", { providerID: ProviderID })
+export const OauthCodeMissing = NamedError.create("ProviderAuthOauthCodeMissing", { providerID: ProviderID })
 
-export const OauthCallbackFailed = namedSchemaError("ProviderAuthOauthCallbackFailed", {})
+export const OauthCallbackFailed = NamedError.create("ProviderAuthOauthCallbackFailed", {})
 
-export const ValidationFailed = namedSchemaError("ProviderAuthValidationFailed", {
+export const ValidationFailed = NamedError.create("ProviderAuthValidationFailed", {
   field: Schema.String,
   message: Schema.String,
 })

packages/opencode/src/provider/provider.ts

@@ -13,7 +13,7 @@ import { Auth } from "../auth"
 import { Env } from "../env"
 import { InstallationVersion } from "@opencode-ai/core/installation/version"
 import { Flag } from "@opencode-ai/core/flag/flag"
-import { namedSchemaError } from "@/util/named-schema-error"
+import { NamedError } from "@opencode-ai/core/util/error"
 import { iife } from "@/util/iife"
 import { Global } from "@opencode-ai/core/global"
 import path from "path"
@@ -1749,13 +1749,13 @@ export function parseModel(model: string) {
   }
 }
 
-export const ModelNotFoundError = namedSchemaError("ProviderModelNotFoundError", {
+export const ModelNotFoundError = NamedError.create("ProviderModelNotFoundError", {
   providerID: ProviderID,
   modelID: ModelID,
   suggestions: Schema.optional(Schema.Array(Schema.String)),
 })
 
-export const InitError = namedSchemaError("ProviderInitError", {
+export const InitError = NamedError.create("ProviderInitError", {
   providerID: ProviderID,
 })
 

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

@@ -0,0 +1,14 @@
+import { Schema } from "effect"
+import { NamedError } from "@opencode-ai/core/util/error"
+
+export const OutputLengthError = NamedError.create("MessageOutputLengthError", {})
+
+export const AuthError = NamedError.create("ProviderAuthError", {
+  providerID: Schema.String,
+  message: Schema.String,
+})
+
+export const Shared = [AuthError.EffectSchema, NamedError.Unknown.EffectSchema, OutputLengthError.EffectSchema] as const
+export const SharedSchema = Schema.Union(Shared)
+
+export * as MessageError from "./message-error"

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

@@ -23,8 +23,10 @@ import type { Provider } from "@/provider/provider"
 import { ModelID, ProviderID } from "@/provider/schema"
 import { Effect, Schema, Types } from "effect"
 import { NonNegativeInt } from "@opencode-ai/core/schema"
-import { namedSchemaError } from "@/util/named-schema-error"
 import * as EffectLogger from "@opencode-ai/core/effect/logger"
+import { MessageError } from "./message-error"
+import { AuthError, OutputLengthError } from "./message-error"
+export { AuthError, OutputLengthError } from "./message-error"
 
 /** Error shape thrown by Bun's fetch() when gzip/br decompression fails mid-stream */
 interface FetchDecompressionError extends Error {
@@ -36,17 +38,12 @@ interface FetchDecompressionError extends Error {
 export const SYNTHETIC_ATTACHMENT_PROMPT = "Attached media from tool result:"
 export { isMedia }
 
-export const OutputLengthError = namedSchemaError("MessageOutputLengthError", {})
+export const AbortedError = NamedError.create("MessageAbortedError", { message: Schema.String })
-export const AbortedError = namedSchemaError("MessageAbortedError", { message: Schema.String })
+export const StructuredOutputError = NamedError.create("StructuredOutputError", {
-export const StructuredOutputError = namedSchemaError("StructuredOutputError", {
   message: Schema.String,
   retries: NonNegativeInt,
 })
-export const AuthError = namedSchemaError("ProviderAuthError", {
+export const APIError = NamedError.create("APIError", {
-  providerID: Schema.String,
-  message: Schema.String,
-})
-export const APIError = namedSchemaError("APIError", {
   message: Schema.String,
   statusCode: Schema.optional(NonNegativeInt),
   isRetryable: Schema.Boolean,
@@ -55,7 +52,7 @@ export const APIError = namedSchemaError("APIError", {
   metadata: Schema.optional(Schema.Record(Schema.String, Schema.String)),
 })
 export type APIError = Schema.Schema.Type<typeof APIError.Schema>
-export const ContextOverflowError = namedSchemaError("ContextOverflowError", {
+export const ContextOverflowError = NamedError.create("ContextOverflowError", {
   message: Schema.String,
   responseBody: Schema.optional(Schema.String),
 })
@@ -381,9 +378,7 @@ export type Part =
   | CompactionPart
 
 const AssistantErrorSchema = Schema.Union([
-  AuthError.EffectSchema,
+  ...MessageError.Shared,
-  NamedError.Unknown.EffectSchema,
-  OutputLengthError.EffectSchema,
   AbortedError.EffectSchema,
   StructuredOutputError.EffectSchema,
   ContextOverflowError.EffectSchema,

packages/opencode/src/session/message.ts

@@ -2,14 +2,9 @@ import { Schema } from "effect"
 import { SessionID } from "./schema"
 import { ModelID, ProviderID } from "../provider/schema"
 import { NonNegativeInt } from "@opencode-ai/core/schema"
-import { namedSchemaError } from "@/util/named-schema-error"
+import { MessageError } from "./message-error"
-import { NamedError } from "@opencode-ai/core/util/error"
+import { AuthError, OutputLengthError } from "./message-error"
-
+export { AuthError, OutputLengthError } from "./message-error"
-export const OutputLengthError = namedSchemaError("MessageOutputLengthError", {})
-export const AuthError = namedSchemaError("ProviderAuthError", {
-  providerID: Schema.String,
-  message: Schema.String,
-})
 
 export const ToolCall = Schema.Struct({
   state: Schema.Literal("call"),
@@ -105,9 +100,7 @@ export const Info = Schema.Struct({
       created: NonNegativeInt,
       completed: Schema.optional(NonNegativeInt),
     }),
-    error: Schema.optional(
+    error: Schema.optional(MessageError.SharedSchema),
-      Schema.Union([AuthError.EffectSchema, NamedError.Unknown.EffectSchema, OutputLengthError.EffectSchema]),
-    ),
     sessionID: SessionID,
     tool: Schema.Record(
       Schema.String,

packages/opencode/src/util/named-schema-error.ts

@@ -1,9 +0,0 @@
-import { Schema } from "effect"
-import { NamedError } from "@opencode-ai/core/util/error"
-
-/**
- * Create a Schema-backed NamedError-shaped class.
- */
-export function namedSchemaError<Tag extends string, Fields extends Schema.Struct.Fields>(tag: Tag, fields: Fields) {
-  return NamedError.create(tag, fields)
-}

packages/opencode/test/util/error.test.ts

@@ -2,8 +2,8 @@ import { describe, expect, test } from "bun:test"
 import { Schema } from "effect"
 import { NamedError } from "@opencode-ai/core/util/error"
 import { errorData, errorFormat, errorMessage } from "../../src/util/error"
-import { namedSchemaError } from "../../src/util/named-schema-error"
 import { UI } from "../../src/cli/ui"
+import { MessageError } from "../../src/session/message-error"
 
 describe("util.error", () => {
   test("formats native Error instances", () => {
@@ -53,12 +53,11 @@ describe("util.error", () => {
     expect(String(data.formatted)).toContain("ResolveMessage")
   })
 
-  test("named schema errors are real NamedError instances", () => {
+  test("schema-backed named errors are real NamedError instances", () => {
-    const ExampleError = namedSchemaError("ExampleError", { message: Schema.String })
+    const error = new MessageError.AuthError({ providerID: "anthropic", message: "boom" })
-    const error = new ExampleError({ message: "boom" })
 
     expect(error).toBeInstanceOf(NamedError)
-    expect(error.toObject()).toEqual({ name: "ExampleError", data: { message: "boom" } })
+    expect(error.toObject()).toEqual({ name: "ProviderAuthError", data: { providerID: "anthropic", message: "boom" } })
   })
 
   test("void named errors accept JSON without data", () => {