diff --git a/packages/opencode/test/agent/plugin-agent-regression.test.ts b/packages/opencode/test/agent/plugin-agent-regression.test.ts
index 1bb46701d3..bf54e929d0 100644
--- a/packages/opencode/test/agent/plugin-agent-regression.test.ts
+++ b/packages/opencode/test/agent/plugin-agent-regression.test.ts
@@ -1,6 +1,5 @@
 import { expect } from "bun:test"
 import { AppFileSystem } from "@opencode-ai/core/filesystem"
-import { AuthWellKnown } from "@opencode-ai/core/auth-well-known"
 import { Substitution } from "@opencode-ai/core/substitution"
 import { Effect, Layer } from "effect"
 import path from "path"
@@ -13,6 +12,7 @@ import { RuntimeFlags } from "../../src/effect/runtime-flags"
 import { Plugin } from "../../src/plugin"
 import { AccountTest } from "../fake/account"
 import { AuthTest } from "../fake/auth"
+import { AuthWellKnownTest } from "../fake/auth-well-known"
 import { NpmTest } from "../fake/npm"
 import { ProviderTest } from "../fake/provider"
 import { SkillTest } from "../fake/skill"
@@ -25,12 +25,9 @@ import { PLUGIN_AGENT } from "../fixture/agent-plugin.constants"
 const pluginUrl = pathToFileURL(path.join(import.meta.dir, "..", "fixture", "agent-plugin.ts")).href
 
 const provider = ProviderTest.fake()
-const emptyAuthWellKnown = Layer.mock(AuthWellKnown.Service)({
-  configs: () => Effect.succeed([]),
-})
 const configLayer = Config.layer.pipe(
   Layer.provide(AppFileSystem.defaultLayer),
-  Layer.provide(emptyAuthWellKnown),
+  Layer.provide(AuthWellKnownTest.empty),
   Layer.provide(Substitution.defaultLayer),
   Layer.provide(Env.defaultLayer),
   Layer.provide(AuthTest.empty),
diff --git a/packages/opencode/test/config/config.test.ts b/packages/opencode/test/config/config.test.ts
index 064b393490..7aeddf534a 100644
--- a/packages/opencode/test/config/config.test.ts
+++ b/packages/opencode/test/config/config.test.ts
@@ -32,16 +32,13 @@ import { Filesystem } from "@/util/filesystem"
 import { ConfigPlugin } from "@/config/plugin"
 import { Npm } from "@opencode-ai/core/npm"
 import { Substitution } from "@opencode-ai/core/substitution"
+import { AuthWellKnownTest } from "../fake/auth-well-known"
 
 const emptyAccount = Layer.mock(Account.Service)({
   active: () => Effect.succeed(Option.none()),
   activeOrg: () => Effect.succeed(Option.none()),
 })
 
-const emptyAuthWellKnown = Layer.mock(AuthWellKnown.Service)({
-  configs: () => Effect.succeed([]),
-})
-
 const testFlock = EffectFlock.defaultLayer
 
 const noopNpm = Layer.mock(Npm.Service)({
@@ -58,7 +55,7 @@ const layer = Config.layer.pipe(
   Layer.provide(AppFileSystem.defaultLayer),
   Layer.provide(Substitution.defaultLayer),
   Layer.provide(Env.defaultLayer),
-  Layer.provide(emptyAuthWellKnown),
+  Layer.provide(AuthWellKnownTest.empty),
   Layer.provide(emptyAccount),
   Layer.provideMerge(infra),
   Layer.provide(noopNpm),
@@ -595,7 +592,7 @@ test("resolves env templates in account config with account token", async () =>
     Layer.provide(AppFileSystem.defaultLayer),
     Layer.provide(Substitution.defaultLayer),
     Layer.provide(Env.defaultLayer),
-    Layer.provide(emptyAuthWellKnown),
+    Layer.provide(AuthWellKnownTest.empty),
     Layer.provide(fakeAccount),
     Layer.provideMerge(infra),
     Layer.provide(noopNpm),
@@ -1107,7 +1104,7 @@ test("installs dependencies in writable OPENCODE_CONFIG_DIR", async () => {
     Layer.provide(AppFileSystem.defaultLayer),
     Layer.provide(Substitution.defaultLayer),
     Layer.provide(Env.defaultLayer),
-    Layer.provide(emptyAuthWellKnown),
+    Layer.provide(AuthWellKnownTest.empty),
     Layer.provide(emptyAccount),
     Layer.provideMerge(infra),
     Layer.provide(noopNpm),
diff --git a/packages/opencode/test/fake/auth-well-known.ts b/packages/opencode/test/fake/auth-well-known.ts
new file mode 100644
index 0000000000..5a9f13dccd
--- /dev/null
+++ b/packages/opencode/test/fake/auth-well-known.ts
@@ -0,0 +1,8 @@
+import { AuthWellKnown } from "@opencode-ai/core/auth-well-known"
+import { Effect, Layer } from "effect"
+
+export const AuthWellKnownTest = {
+  empty: Layer.mock(AuthWellKnown.Service, {
+    configs: () => Effect.succeed([]),
+  }),
+}
diff --git a/packages/opencode/test/plugin/trigger.test.ts b/packages/opencode/test/plugin/trigger.test.ts
index 9196754e4f..77b8417a20 100644
--- a/packages/opencode/test/plugin/trigger.test.ts
+++ b/packages/opencode/test/plugin/trigger.test.ts
@@ -3,7 +3,6 @@ import { Effect, Layer, Option } from "effect"
 import { CrossSpawnSpawner } from "@opencode-ai/core/cross-spawn-spawner"
 import { AppFileSystem } from "@opencode-ai/core/filesystem"
 import { EffectFlock } from "@opencode-ai/core/util/effect-flock"
-import { AuthWellKnown } from "@opencode-ai/core/auth-well-known"
 import { Substitution } from "@opencode-ai/core/substitution"
 import path from "path"
 import { pathToFileURL } from "url"
@@ -18,6 +17,7 @@ import { ModelID, ProviderID } from "../../src/provider/schema"
 import { provideTmpdirInstance } from "../fixture/fixture"
 import { testEffect } from "../lib/effect"
 import { NpmTest } from "../fake/npm"
+import { AuthWellKnownTest } from "../fake/auth-well-known"
 
 const emptyAccount = Layer.mock(Account.Service)({
   active: () => Effect.succeed(Option.none()),
@@ -26,13 +26,10 @@ const emptyAccount = Layer.mock(Account.Service)({
 const emptyAuth = Layer.mock(Auth.Service)({
   all: () => Effect.succeed({}),
 })
-const emptyAuthWellKnown = Layer.mock(AuthWellKnown.Service)({
-  configs: () => Effect.succeed([]),
-})
 const configLayer = Config.layer.pipe(
   Layer.provide(EffectFlock.defaultLayer),
   Layer.provide(AppFileSystem.defaultLayer),
-  Layer.provide(emptyAuthWellKnown),
+  Layer.provide(AuthWellKnownTest.empty),
   Layer.provide(Substitution.defaultLayer),
   Layer.provide(Env.defaultLayer),
   Layer.provide(emptyAuth),
diff --git a/packages/opencode/test/plugin/workspace-adapter.test.ts b/packages/opencode/test/plugin/workspace-adapter.test.ts
index 0871a1079d..0dfbf53757 100644
--- a/packages/opencode/test/plugin/workspace-adapter.test.ts
+++ b/packages/opencode/test/plugin/workspace-adapter.test.ts
@@ -4,7 +4,6 @@ import { FetchHttpClient } from "effect/unstable/http"
 import { CrossSpawnSpawner } from "@opencode-ai/core/cross-spawn-spawner"
 import { AppFileSystem } from "@opencode-ai/core/filesystem"
 import { EffectFlock } from "@opencode-ai/core/util/effect-flock"
-import { AuthWellKnown } from "@opencode-ai/core/auth-well-known"
 import { Substitution } from "@opencode-ai/core/substitution"
 import path from "path"
 import { pathToFileURL } from "url"
@@ -27,6 +26,7 @@ import { SyncEvent } from "../../src/sync"
 import { disposeAllInstances, provideTmpdirInstance } from "../fixture/fixture"
 import { testEffect } from "../lib/effect"
 import { NpmTest } from "../fake/npm"
+import { AuthWellKnownTest } from "../fake/auth-well-known"
 
 const emptyAccount = Layer.mock(Account.Service)({
   active: () => Effect.succeed(Option.none()),
@@ -35,13 +35,10 @@ const emptyAccount = Layer.mock(Account.Service)({
 const emptyAuth = Layer.mock(Auth.Service)({
   all: () => Effect.succeed({}),
 })
-const emptyAuthWellKnown = Layer.mock(AuthWellKnown.Service)({
-  configs: () => Effect.succeed([]),
-})
 const configLayer = Config.layer.pipe(
   Layer.provide(EffectFlock.defaultLayer),
   Layer.provide(AppFileSystem.defaultLayer),
-  Layer.provide(emptyAuthWellKnown),
+  Layer.provide(AuthWellKnownTest.empty),
   Layer.provide(Substitution.defaultLayer),
   Layer.provide(Env.defaultLayer),
   Layer.provide(emptyAuth),