diff --git a/packages/opencode/src/bus/index.ts b/packages/opencode/src/bus/index.ts
index 87b08d6101..707c57c0c9 100644
--- a/packages/opencode/src/bus/index.ts
+++ b/packages/opencode/src/bus/index.ts
@@ -1,5 +1,6 @@
 import z from "zod"
 import { Effect, Exit, Layer, PubSub, Scope, ServiceMap, Stream } from "effect"
+import { EffectLogger } from "@/effect/logger"
 import { Log } from "../util/log"
 import { BusEvent } from "./bus-event"
 import { GlobalBus } from "./global"
@@ -146,7 +147,7 @@ export namespace Bus {
 
           return () => {
             log.info("unsubscribing", { type })
-            Effect.runFork(Scope.close(scope, Exit.void))
+            Effect.runFork(Scope.close(scope, Exit.void).pipe(Effect.provide(EffectLogger.layer)))
           }
         })
       }
diff --git a/packages/opencode/src/command/index.ts b/packages/opencode/src/command/index.ts
index 088d7c5659..4c08dbbb31 100644
--- a/packages/opencode/src/command/index.ts
+++ b/packages/opencode/src/command/index.ts
@@ -3,6 +3,7 @@ import { InstanceState } from "@/effect/instance-state"
 import { makeRuntime } from "@/effect/run-service"
 import { SessionID, MessageID } from "@/session/schema"
 import { Effect, Layer, ServiceMap } from "effect"
+import { EffectLogger } from "@/effect/logger"
 import z from "zod"
 import { Config } from "../config/config"
 import { MCP } from "../mcp"
@@ -140,6 +141,7 @@ export namespace Command {
                           .map((message) => (message.content.type === "text" ? message.content.text : ""))
                           .join("\n") || "",
                     ),
+                    Effect.provide(EffectLogger.layer),
                   ),
               )
             },
diff --git a/packages/opencode/src/effect/instance-state.ts b/packages/opencode/src/effect/instance-state.ts
index 878648855e..86f84ddb1c 100644
--- a/packages/opencode/src/effect/instance-state.ts
+++ b/packages/opencode/src/effect/instance-state.ts
@@ -1,4 +1,5 @@
 import { Effect, Fiber, ScopedCache, Scope, ServiceMap } from "effect"
+import { EffectLogger } from "@/effect/logger"
 import { Instance, type InstanceContext } from "@/project/instance"
 import { Context } from "@/util/context"
 import { InstanceRef, WorkspaceRef } from "./instance-ref"
@@ -47,7 +48,7 @@ export namespace InstanceState {
           }),
       })
 
-      const off = registerDisposer((directory) => Effect.runPromise(ScopedCache.invalidate(cache, directory)))
+      const off = registerDisposer((directory) => Effect.runPromise(ScopedCache.invalidate(cache, directory).pipe(Effect.provide(EffectLogger.layer))))
       yield* Effect.addFinalizer(() => Effect.sync(off))
 
       return {
diff --git a/packages/opencode/src/mcp/index.ts b/packages/opencode/src/mcp/index.ts
index 2599a8dec9..c5d466e1f0 100644
--- a/packages/opencode/src/mcp/index.ts
+++ b/packages/opencode/src/mcp/index.ts
@@ -25,6 +25,7 @@ import { Bus } from "@/bus"
 import { TuiEvent } from "@/cli/cmd/tui/event"
 import open from "open"
 import { Effect, Exit, Layer, Option, ServiceMap, Stream } from "effect"
+import { EffectLogger } from "@/effect/logger"
 import { InstanceState } from "@/effect/instance-state"
 import { makeRuntime } from "@/effect/run-service"
 import { ChildProcess, ChildProcessSpawner } from "effect/unstable/process"
@@ -469,12 +470,12 @@ export namespace MCP {
           log.info("tools list changed notification received", { server: name })
           if (s.clients[name] !== client || s.status[name]?.status !== "connected") return
 
-          const listed = await Effect.runPromise(defs(name, client, timeout))
+          const listed = await Effect.runPromise(defs(name, client, timeout).pipe(Effect.provide(EffectLogger.layer)))
           if (!listed) return
           if (s.clients[name] !== client || s.status[name]?.status !== "connected") return
 
           s.defs[name] = listed
-          await Effect.runPromise(bus.publish(ToolsChanged, { server: name }).pipe(Effect.ignore))
+          await Effect.runPromise(bus.publish(ToolsChanged, { server: name }).pipe(Effect.ignore, Effect.provide(EffectLogger.layer)))
         })
       }
 
diff --git a/packages/opencode/src/plugin/index.ts b/packages/opencode/src/plugin/index.ts
index 814e7870a4..799b92f0b1 100644
--- a/packages/opencode/src/plugin/index.ts
+++ b/packages/opencode/src/plugin/index.ts
@@ -12,6 +12,7 @@ import { gitlabAuthPlugin as GitlabAuthPlugin } from "opencode-gitlab-auth"
 import { PoeAuthPlugin } from "opencode-poe-auth"
 import { CloudflareAIGatewayAuthPlugin, CloudflareWorkersAuthPlugin } from "./cloudflare"
 import { Effect, Layer, ServiceMap, Stream } from "effect"
+import { EffectLogger } from "@/effect/logger"
 import { InstanceState } from "@/effect/instance-state"
 import { makeRuntime } from "@/effect/run-service"
 import { errorMessage } from "@/util/error"
@@ -83,7 +84,7 @@ export namespace Plugin {
   }
 
   function publishPluginError(bus: Bus.Interface, message: string) {
-    Effect.runFork(bus.publish(Session.Event.Error, { error: new NamedError.Unknown({ message }).toObject() }))
+    Effect.runFork(bus.publish(Session.Event.Error, { error: new NamedError.Unknown({ message }).toObject() }).pipe(Effect.provide(EffectLogger.layer)))
   }
 
   async function applyPlugin(load: PluginLoader.Loaded, input: PluginInput, hooks: Hooks[]) {
diff --git a/packages/opencode/src/provider/provider.ts b/packages/opencode/src/provider/provider.ts
index 004fb77f91..57d6e99a45 100644
--- a/packages/opencode/src/provider/provider.ts
+++ b/packages/opencode/src/provider/provider.ts
@@ -20,6 +20,7 @@ import { Global } from "../global"
 import path from "path"
 import { Filesystem } from "../util/filesystem"
 import { Effect, Layer, ServiceMap } from "effect"
+import { EffectLogger } from "@/effect/logger"
 import { InstanceState } from "@/effect/instance-state"
 import { makeRuntime } from "@/effect/run-service"
 
@@ -1215,7 +1216,7 @@ export namespace Provider {
 
             const options = yield* Effect.promise(() =>
               plugin.auth!.loader!(
-                () => Effect.runPromise(auth.get(providerID).pipe(Effect.orDie)) as any,
+                () => Effect.runPromise(auth.get(providerID).pipe(Effect.orDie, Effect.provide(EffectLogger.layer))) as any,
                 database[plugin.auth!.provider],
               ),
             )
diff --git a/packages/opencode/src/pty/index.ts b/packages/opencode/src/pty/index.ts
index ff44de73b5..0358c72e85 100644
--- a/packages/opencode/src/pty/index.ts
+++ b/packages/opencode/src/pty/index.ts
@@ -11,6 +11,7 @@ import { Shell } from "@/shell/shell"
 import { Plugin } from "@/plugin"
 import { PtyID } from "./schema"
 import { Effect, Layer, ServiceMap } from "effect"
+import { EffectLogger } from "@/effect/logger"
 
 export namespace Pty {
   const log = Log.create({ service: "pty" })
@@ -256,8 +257,8 @@ export namespace Pty {
             if (session.info.status === "exited") return
             log.info("session exited", { id, exitCode })
             session.info.status = "exited"
-            Effect.runFork(bus.publish(Event.Exited, { id, exitCode }))
-            Effect.runFork(remove(id))
+            Effect.runFork(bus.publish(Event.Exited, { id, exitCode }).pipe(Effect.provide(EffectLogger.layer)))
+            Effect.runFork(remove(id).pipe(Effect.provide(EffectLogger.layer)))
           }),
         )
         yield* bus.publish(Event.Created, { info })
diff --git a/packages/opencode/src/session/message-v2.ts b/packages/opencode/src/session/message-v2.ts
index 61c159646d..aa42e1c1dc 100644
--- a/packages/opencode/src/session/message-v2.ts
+++ b/packages/opencode/src/session/message-v2.ts
@@ -15,6 +15,7 @@ import type { SystemError } from "bun"
 import type { Provider } from "@/provider/provider"
 import { ModelID, ProviderID } from "@/provider/schema"
 import { Effect } from "effect"
+import { EffectLogger } from "@/effect/logger"
 
 /** Error shape thrown by Bun's fetch() when gzip/br decompression fails mid-stream */
 interface FetchDecompressionError extends Error {
@@ -839,7 +840,7 @@ export namespace MessageV2 {
     model: Provider.Model,
     options?: { stripMedia?: boolean },
   ): Promise<ModelMessage[]> {
-    return Effect.runPromise(toModelMessagesEffect(input, model, options))
+    return Effect.runPromise(toModelMessagesEffect(input, model, options).pipe(Effect.provide(EffectLogger.layer)))
   }
 
   export function page(input: { sessionID: SessionID; limit: number; before?: string }) {
diff --git a/packages/opencode/src/tool/external-directory.ts b/packages/opencode/src/tool/external-directory.ts
index ed9d2af2fb..ff8854649a 100644
--- a/packages/opencode/src/tool/external-directory.ts
+++ b/packages/opencode/src/tool/external-directory.ts
@@ -1,5 +1,6 @@
 import path from "path"
 import { Effect } from "effect"
+import { EffectLogger } from "@/effect/logger"
 import type { Tool } from "./tool"
 import { Instance } from "../project/instance"
 import { AppFileSystem } from "../filesystem"
@@ -42,5 +43,5 @@ export const assertExternalDirectoryEffect = Effect.fn("Tool.assertExternalDirec
 })
 
 export async function assertExternalDirectory(ctx: Tool.Context, target?: string, options?: Options) {
-  return Effect.runPromise(assertExternalDirectoryEffect(ctx, target, options))
+  return Effect.runPromise(assertExternalDirectoryEffect(ctx, target, options).pipe(Effect.provide(EffectLogger.layer)))
 }
diff --git a/packages/opencode/src/tool/registry.ts b/packages/opencode/src/tool/registry.ts
index 7ba99c0c97..c2577a5054 100644
--- a/packages/opencode/src/tool/registry.ts
+++ b/packages/opencode/src/tool/registry.ts
@@ -30,6 +30,7 @@ import { Glob } from "../util/glob"
 import path from "path"
 import { pathToFileURL } from "url"
 import { Effect, Layer, ServiceMap } from "effect"
+import { EffectLogger } from "@/effect/logger"
 import { FetchHttpClient, HttpClient } from "effect/unstable/http"
 import { ChildProcessSpawner } from "effect/unstable/process/ChildProcessSpawner"
 import * as CrossSpawnSpawner from "@/effect/cross-spawn-spawner"
@@ -136,7 +137,7 @@ export namespace ToolRegistry {
                 Effect.gen(function* () {
                   const pluginCtx: PluginToolContext = {
                     ...toolCtx,
-                    ask: (req) => Effect.runPromise(toolCtx.ask(req)),
+                    ask: (req) => Effect.runPromise(toolCtx.ask(req).pipe(Effect.provide(EffectLogger.layer))),
                     directory: ctx.directory,
                     worktree: ctx.worktree,
                   }
diff --git a/packages/opencode/src/tool/skill.ts b/packages/opencode/src/tool/skill.ts
index 22eac69cf8..f9f06b9cd9 100644
--- a/packages/opencode/src/tool/skill.ts
+++ b/packages/opencode/src/tool/skill.ts
@@ -2,6 +2,7 @@ import path from "path"
 import { pathToFileURL } from "url"
 import z from "zod"
 import { Effect } from "effect"
+import { EffectLogger } from "@/effect/logger"
 import * as Stream from "effect/Stream"
 import { Tool } from "./tool"
 import { Skill } from "../skill"
@@ -18,7 +19,7 @@ export const SkillTool = Tool.define(
     const rg = yield* Ripgrep.Service
 
     return async () => {
-      const list = await Effect.runPromise(skill.available())
+      const list = await Effect.runPromise(skill.available().pipe(Effect.provide(EffectLogger.layer)))
 
       const description =
         list.length === 0