chore: merge dev into v2 (#34788)

Co-authored-by: Brendan Allan <14191578+Brendonovich@users.noreply.github.com>
Co-authored-by: Kit Langton <kit.langton@gmail.com>
Co-authored-by: opencode-agent[bot] <opencode-agent[bot]@users.noreply.github.com>
Co-authored-by: Affan Ali <93028901+affanali2k3@users.noreply.github.com>
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Co-authored-by: Frank <frank@anoma.ly>
Co-authored-by: opencode-agent[bot] <219766164+opencode-agent[bot]@users.noreply.github.com>
Co-authored-by: 𝓛𝓲𝓽𝓽𝓵𝓮 𝓕𝓻𝓪𝓷𝓴 <little-frank@opencord.local>
Co-authored-by: Aiden Cline <63023139+rekram1-node@users.noreply.github.com>
Co-authored-by: Jay V <air@live.ca>
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Co-authored-by: Max Anderson <max.a.anderson95@gmail.com>
Co-authored-by: Brendan Allan <git@brendonovich.dev>
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packages/opencode/package.json

@@ -1,6 +1,6 @@
 {
   "$schema": "https://json.schemastore.org/package.json",
-  "version": "1.17.11",
+  "version": "1.17.13",
   "name": "opencode",
   "type": "module",
   "license": "MIT",
@@ -120,7 +120,7 @@
     "drizzle-orm": "catalog:",
     "effect": "catalog:",
     "fuzzysort": "3.1.0",
-    "gitlab-ai-provider": "6.9.3",
+    "gitlab-ai-provider": "6.10.0",
     "glob": "13.0.5",
     "google-auth-library": "10.5.0",
     "gray-matter": "4.0.3",
@@ -144,7 +144,7 @@
     "tree-sitter-powershell": "0.25.10",
     "turndown": "7.2.0",
     "ulid": "catalog:",
-    "venice-ai-sdk-provider": "2.0.2",
+    "venice-ai-sdk-provider": "2.1.1",
     "vscode-jsonrpc": "8.2.1",
     "web-tree-sitter": "0.25.10",
     "ws": "8.21.0",

packages/opencode/src/account/account.ts

@@ -186,7 +186,7 @@ export class Service extends Context.Service<Service, Interface>()("@opencode/Ac
 
 export const use = serviceUse(Service)
 
-export const layer: Layer.Layer<Service, never, AccountRepo.Service | HttpClient.HttpClient> = Layer.effect(
+const layer: Layer.Layer<Service, never, AccountRepo.Service | HttpClient.HttpClient> = Layer.effect(
   Service,
   Effect.gen(function* () {
     const repo = yield* AccountRepo.Service
@@ -456,8 +456,6 @@ export const layer: Layer.Layer<Service, never, AccountRepo.Service | HttpClient
   }),
 )
 
-export const defaultLayer = layer.pipe(Layer.provide(AccountRepo.defaultLayer), Layer.provide(FetchHttpClient.layer))
-
 export const node = LayerNode.make({ service: Service, layer: layer, deps: [AccountRepo.node, httpClient] })
 
 export * as Account from "./account"

packages/opencode/src/account/repo.ts

@@ -39,7 +39,7 @@ export class Service extends Context.Service<Service, Interface>()("@opencode/Ac
 
 export const use = serviceUse(Service)
 
-export const layer = Layer.effect(
+const layer = Layer.effect(
   Service,
   Effect.gen(function* () {
     const { db } = yield* Database.Service
@@ -166,8 +166,6 @@ export const layer = Layer.effect(
   }),
 )
 
-export const defaultLayer = layer.pipe(Layer.provide(Database.defaultLayer))
-
 export const node = LayerNode.make({ service: Service, layer: layer, deps: [Database.node] })
 
 export * as AccountRepo from "./repo"

packages/opencode/src/acp/directory.ts

@@ -1,7 +1,9 @@
 import { Agent } from "@/agent/agent"
 import { Command } from "@/command"
 import { InstanceRef } from "@/effect/instance-ref"
+import { InstanceBootstrap } from "@/project/bootstrap"
 import { InstanceStore } from "@/project/instance-store"
+import { LayerNode } from "@opencode-ai/core/effect/layer-node"
 import { ProviderV2 } from "@opencode-ai/core/provider"
 import { ModelV2 } from "@opencode-ai/core/model"
 import { Provider } from "@/provider/provider"
@@ -139,7 +141,7 @@ export const loaderLayer = Layer.effect(
   }),
 )
 
-export const layer = Layer.effect(
+const layer = Layer.effect(
   Service,
   Effect.gen(function* () {
     const loader = yield* Loader
@@ -199,12 +201,12 @@ export const layer = Layer.effect(
   }),
 )
 
-export const defaultLayer = layer.pipe(
-  Layer.provide(loaderLayer),
-  Layer.provide(Provider.defaultLayer),
-  Layer.provide(Agent.defaultLayer),
-  Layer.provide(Command.defaultLayer),
-  Layer.provide(InstanceStore.defaultLayer),
-)
+export const loaderNode = LayerNode.make({
+  service: Loader,
+  layer: loaderLayer,
+  deps: [Provider.node, Agent.node, Command.node, InstanceStore.node],
+})
+
+export const node = LayerNode.make({ service: Service, layer, deps: [loaderNode] })
 
 export * as Directory from "./directory"

packages/opencode/src/acp/service.ts

@@ -30,6 +30,7 @@ import {
   type SetSessionModeResponse,
 } from "@agentclientprotocol/sdk"
 import { InstallationVersion } from "@opencode-ai/core/installation/version"
+import { AppNodeBuilder } from "@opencode-ai/core/effect/app-node-builder"
 import type { AssistantMessage, Message, OpencodeClient, SessionMessageResponse } from "@opencode-ai/sdk/v2"
 import { Context, Effect, Layer, ManagedRuntime } from "effect"
 import * as ACPError from "./error"
@@ -569,23 +570,24 @@ export function make(input: {
 }
 
 function makeSessionService() {
-  return ManagedRuntime.make(ACPSession.defaultLayer).runSync(
+  return ManagedRuntime.make(AppNodeBuilder.build(ACPSession.node)).runSync(
     ACPSession.Service.use((service) => Effect.succeed(service)),
   )
 }
 
 function makeDirectoryService(sdk: OpencodeClient) {
   return ManagedRuntime.make(
-    Directory.layer.pipe(
-      Layer.provide(
+    AppNodeBuilder.build(Directory.node, [
+      [
+        Directory.loaderNode,
         Layer.succeed(
           Directory.Loader,
           Directory.Loader.of({
             load: (directory) => request(() => loadDirectorySnapshot(sdk, directory), "directory"),
           }),
         ),
-      ),
-    ),
+      ],
+    ]),
   ).runSync(Directory.Service.use((service) => Effect.succeed(service)))
 }
 

packages/opencode/src/acp/session.ts

@@ -1,5 +1,6 @@
 import type { McpServer } from "@agentclientprotocol/sdk"
 import type { Message, Part } from "@opencode-ai/sdk/v2"
+import { LayerNode } from "@opencode-ai/core/effect/layer-node"
 import { ProviderV2 } from "@opencode-ai/core/provider"
 import { ModelV2 } from "@opencode-ai/core/model"
 import { Context, Effect, Layer, Ref } from "effect"
@@ -93,7 +94,7 @@ export class Service extends Context.Service<Service, Interface>()("@opencode/AC
 
 type State = Map<string, Info>
 
-export const layer = Layer.effect(
+const layer = Layer.effect(
   Service,
   Effect.gen(function* () {
     const sessions = yield* Ref.make<State>(new Map())
@@ -200,7 +201,7 @@ export const layer = Layer.effect(
   }),
 )
 
-export const defaultLayer = layer
+export const node = LayerNode.make({ service: Service, layer, deps: [] })
 
 function makeSession(input: StoreInput): Info {
   return {

packages/opencode/src/acp/usage.ts

@@ -1,7 +1,10 @@
 import type { AgentSideConnection, Usage } from "@agentclientprotocol/sdk"
 import type { AssistantMessage as OpenCodeAssistantMessage, Message } from "@opencode-ai/sdk/v2"
 import { InstanceRef } from "@/effect/instance-ref"
+import { InstanceBootstrap } from "@/project/bootstrap"
 import { InstanceStore } from "@/project/instance-store"
+import { makeGlobalNode, Node } from "@opencode-ai/core/effect/app-node"
+import { LayerNode } from "@opencode-ai/core/effect/layer-node"
 import { ProviderV2 } from "@opencode-ai/core/provider"
 import { ModelV2 } from "@opencode-ai/core/model"
 import { Provider } from "@/provider/provider"
@@ -132,7 +135,7 @@ export const contextLimitLoaderLayer = Layer.effect(
   }),
 )
 
-export const layer = Layer.effect(
+const layer = Layer.effect(
   Service,
   Effect.gen(function* () {
     const messageLoader = yield* MessageLoader
@@ -223,10 +226,14 @@ export const layer = Layer.effect(
   }),
 )
 
-export const defaultLayer = layer.pipe(
-  Layer.provide(contextLimitLoaderLayer),
-  Layer.provide(Provider.defaultLayer),
-  Layer.provide(InstanceStore.defaultLayer),
-)
+export const messageLoaderNode = LayerNode.unbound(MessageLoader, Node.tags.values.global)
+
+export const contextLimitLoaderNode = makeGlobalNode({
+  service: ContextLimitLoader,
+  layer: contextLimitLoaderLayer,
+  deps: [Provider.node, InstanceStore.node],
+})
+
+export const node = makeGlobalNode({ service: Service, layer, deps: [messageLoaderNode, contextLimitLoaderNode] })
 
 export * as UsageService from "./usage"

packages/opencode/src/agent/agent.ts

@@ -85,7 +85,7 @@ export class Service extends Context.Service<Service, Interface>()("@opencode/Ag
 
 export const use = serviceUse(Service)
 
-export const layer = Layer.effect(
+const layer = Layer.effect(
   Service,
   Effect.gen(function* () {
     const config = yield* Config.Service
@@ -438,15 +438,6 @@ export const layer = Layer.effect(
   }),
 )
 
-export const defaultLayer = layer.pipe(
-  Layer.provide(Plugin.defaultLayer),
-  Layer.provide(Provider.defaultLayer),
-  Layer.provide(Auth.defaultLayer),
-  Layer.provide(Config.defaultLayer),
-  Layer.provide(Skill.defaultLayer),
-  Layer.provide(locationServiceMapLayer),
-)
-
 const locationServiceMapNode = LayerNode.make({
   service: LocationServiceMap.Service,
   layer: locationServiceMapLayer,

packages/opencode/src/auth/index.ts

@@ -49,7 +49,7 @@ export interface Interface {
 
 export class Service extends Context.Service<Service, Interface>()("@opencode/Auth") {}
 
-export const layer = Layer.effect(
+const layer = Layer.effect(
   Service,
   Effect.gen(function* () {
     const fsys = yield* FSUtil.Service
@@ -92,8 +92,6 @@ export const layer = Layer.effect(
   }),
 )
 
-export const defaultLayer = layer.pipe(Layer.provide(FSUtil.defaultLayer))
-
 export const node = LayerNode.make({ service: Service, layer: layer, deps: [FSUtil.node] })
 
 export * as Auth from "."

packages/opencode/src/cli/cmd/debug/scrap.ts

@@ -7,8 +7,9 @@ export const ScrapCommand = cmd({
   builder: (yargs) => yargs,
   async handler() {
     const { Project } = await import("@/project/project")
+    const { AppNodeBuilder } = await import("@opencode-ai/core/effect/app-node-builder")
     const { makeRuntime } = await import("@opencode-ai/core/effect/runtime")
-    const runtime = makeRuntime(Project.Service, Project.defaultLayer)
+    const runtime = makeRuntime(Project.Service, AppNodeBuilder.build(Project.node))
     const list = await runtime.runPromise((project) => project.list())
     process.stdout.write(JSON.stringify(list, null, 2) + EOL)
   },

packages/opencode/src/cli/cmd/mcp.ts

@@ -761,7 +761,7 @@ export const McpDebugCommand = effectCmd({
         }
 
         if (response.status === 401) {
-          prompts.log.warn("Server returned 401 Unauthorized")
+          prompts.log.info("Initial unauthenticated check returned 401, so this server requires OAuth")
 
           // Try to discover OAuth metadata
           const oauthConfig = typeof serverConfig.oauth === "object" ? serverConfig.oauth : undefined

packages/opencode/src/cli/cmd/run.ts

@@ -233,11 +233,27 @@ export const RunCommand = effectCmd({
         hidden: true,
         describe: "cap visible interactive replay to the newest N messages",
       })
-      .option("dangerously-skip-permissions", {
+      .option("interactive", {
+        alias: ["i"],
+        type: "boolean",
+        describe: "run in direct interactive split-footer mode",
+        default: false,
+      })
+      .option("auto", {
         type: "boolean",
         describe: "auto-approve permissions that are not explicitly denied (dangerous!)",
         default: false,
       })
+      .option("yolo", {
+        type: "boolean",
+        hidden: true,
+        default: false,
+      })
+      .option("dangerously-skip-permissions", {
+        type: "boolean",
+        hidden: true,
+        default: false,
+      })
       .option("demo", {
         type: "boolean",
         default: false,
@@ -255,6 +271,7 @@ export const RunCommand = effectCmd({
     yield* Effect.promise(async () => {
       const rawMessage = [...args.message, ...(args["--"] || [])].join(" ")
       const interactive = args.mini
+      const auto = args.auto || args.yolo || args["dangerously-skip-permissions"]
       const thinking = interactive ? (args.thinking ?? true) : (args.thinking ?? false)
       const die = (message: string): never => {
         UI.error(message)
@@ -780,7 +797,7 @@ export const RunCommand = effectCmd({
               const permission = event.properties
               if (permission.sessionID !== sessionID) continue
 
-              if (args["dangerously-skip-permissions"]) {
+              if (auto) {
                 await client.permission.reply({
                   requestID: permission.id,
                   reply: "once",
@@ -981,9 +998,12 @@ export async function runMini(input: MiniCommandInput) {
     variant: undefined,
     thinking: undefined,
     mini: true,
+    interactive: false,
     replay: input.replay ?? true,
     "replay-limit": input.replayLimit,
     replayLimit: input.replayLimit,
+    auto: false,
+    yolo: false,
     "dangerously-skip-permissions": false,
     dangerouslySkipPermissions: false,
     demo: input.demo ?? false,

packages/opencode/src/cli/cmd/run/variant.shared.ts

@@ -8,6 +8,7 @@
 // variant and the persisted file.
 import path from "path"
 import { FSUtil } from "@opencode-ai/core/fs-util"
+import { AppNodeBuilder } from "@opencode-ai/core/effect/app-node-builder"
 import { Context, Effect, Layer } from "effect"
 import { makeRuntime } from "@/effect/run-service"
 import { Global } from "@opencode-ai/core/global"
@@ -135,7 +136,7 @@ function state(value: unknown): ModelState {
   }
 }
 
-function createLayer(fs = FSUtil.defaultLayer) {
+function createLayer(fs = AppNodeBuilder.build(FSUtil.node)) {
   return Layer.fresh(
     Layer.effect(
       Service,
@@ -196,7 +197,7 @@ function createLayer(fs = FSUtil.defaultLayer) {
 }
 
 /** @internal Exported for testing. */
-export function createVariantRuntime(fs = FSUtil.defaultLayer): VariantRuntime {
+export function createVariantRuntime(fs = AppNodeBuilder.build(FSUtil.node)): VariantRuntime {
   const runtime = makeRuntime(Service, createLayer(fs))
   return {
     resolveSavedVariant: (model) => runtime.runPromise((svc) => svc.resolveSavedVariant(model)).catch(() => undefined),

packages/opencode/src/cli/cmd/tui.ts

@@ -6,11 +6,12 @@ import { fileURLToPath } from "url"
 import { UI } from "@/cli/ui"
 import { errorMessage } from "@opencode-ai/tui/util/error"
 import { withTimeout } from "@/util/timeout"
-import { withNetworkOptions, resolveNetworkOptionsNoConfig } from "@/cli/network"
+import { withNetworkOptions, resolveNetworkOptionsNoConfig, hasArg } from "@/cli/network"
 import { Filesystem } from "@/util/filesystem"
 import { OpenCode } from "@opencode-ai/client"
 import { createOpencodeClient } from "@opencode-ai/sdk/v2"
 import { writeHeapSnapshot } from "v8"
+import { ServerAuth } from "@/server/auth"
 import { validateSession } from "../tui/validate-session"
 import { win32InstallCtrlCGuard } from "@opencode-ai/tui/terminal-win32"
 
@@ -74,6 +75,21 @@ export const TuiThreadCommand = cmd({
         type: "string",
         describe: "agent to use",
       })
+      .option("auto", {
+        type: "boolean",
+        describe: "auto-approve permissions that are not explicitly denied (dangerous!)",
+        default: false,
+      })
+      .option("yolo", {
+        type: "boolean",
+        hidden: true,
+        default: false,
+      })
+      .option("dangerously-skip-permissions", {
+        type: "boolean",
+        hidden: true,
+        default: false,
+      })
       .option("mini", {
         type: "boolean",
         describe: "start the minimal interactive interface",
@@ -221,6 +237,7 @@ export const TuiThreadCommand = cmd({
               model: args.model,
               prompt,
               fork: args.fork,
+              auto: args.auto || args.yolo || args["dangerously-skip-permissions"],
             },
           }),
         )

packages/opencode/src/cli/network.ts

@@ -37,6 +37,22 @@ export type NetworkOptions = InferredOptionTypes<typeof options>
 export function withNetworkOptions<T>(yargs: Argv<T>) {
   return yargs.options(options)
 }
+
+export function hasArg(name: string) {
+  return networkArgs().some((arg) => arg === name || arg.startsWith(name + "="))
+}
+
+function hasBooleanArg(name: string) {
+  return networkArgs().some(
+    (arg) => arg === name || arg === name + "=true" || arg === name + "=false" || arg === "--no-" + name.slice(2),
+  )
+}
+
+function networkArgs() {
+  const separator = process.argv.indexOf("--")
+  return process.argv.slice(2, separator === -1 ? undefined : separator)
+}
+
 export const resolveNetworkOptions = Effect.fn("Cli.resolveNetworkOptions")(function* (args: NetworkOptions) {
   const { Config } = yield* Effect.promise(() => import("@/config/config"))
   const config = yield* Config.Service.use((cfg) => cfg.getGlobal())
@@ -44,10 +60,10 @@ export const resolveNetworkOptions = Effect.fn("Cli.resolveNetworkOptions")(func
 })
 
 export function resolveNetworkOptionsNoConfig(args: NetworkOptions, config?: ConfigV1.Info) {
-  const portExplicitlySet = process.argv.includes("--port")
-  const hostnameExplicitlySet = process.argv.includes("--hostname")
-  const mdnsExplicitlySet = process.argv.includes("--mdns")
-  const mdnsDomainExplicitlySet = process.argv.includes("--mdns-domain")
+  const portExplicitlySet = hasArg("--port")
+  const hostnameExplicitlySet = hasArg("--hostname")
+  const mdnsExplicitlySet = hasBooleanArg("--mdns")
+  const mdnsDomainExplicitlySet = hasArg("--mdns-domain")
   const mdns = mdnsExplicitlySet ? args.mdns : (config?.server?.mdns ?? args.mdns)
   const mdnsDomain = mdnsDomainExplicitlySet ? args["mdns-domain"] : (config?.server?.mdnsDomain ?? args["mdns-domain"])
   const port = portExplicitlySet ? args.port : (config?.server?.port ?? args.port)

packages/opencode/src/cli/tui/layer.ts

@@ -1,7 +1,8 @@
 import { run as runTui, type TuiInput } from "@opencode-ai/tui"
 import { Global } from "@opencode-ai/core/global"
+import { AppNodeBuilder } from "@opencode-ai/core/effect/app-node-builder"
 import { Effect } from "effect"
 
 export function run(input: TuiInput) {
-  return runTui(input).pipe(Effect.provide(Global.defaultLayer))
+  return runTui(input).pipe(Effect.provide(AppNodeBuilder.build(Global.node)))
 }

packages/opencode/src/command/index.ts

@@ -55,7 +55,7 @@ export interface Interface {
 
 export class Service extends Context.Service<Service, Interface>()("@opencode/Command") {}
 
-export const layer = Layer.effect(
+const layer = Layer.effect(
   Service,
   Effect.gen(function* () {
     const config = yield* Config.Service
@@ -172,12 +172,6 @@ export const layer = Layer.effect(
   }),
 )
 
-export const defaultLayer = layer.pipe(
-  Layer.provide(Config.defaultLayer),
-  Layer.provide(MCP.defaultLayer),
-  Layer.provide(Skill.defaultLayer),
-)
-
 export const node = LayerNode.make({ service: Service, layer: layer, deps: [Config.node, MCP.node, Skill.node] })
 
 export * as Command from "."

packages/opencode/src/config/config.ts

@@ -172,7 +172,7 @@ function writableGlobal(info: Info) {
   return next
 }
 
-export const layer = Layer.effect(
+const layer = Layer.effect(
   Service,
   Effect.gen(function* () {
     const fs = yield* FSUtil.Service
@@ -671,16 +671,6 @@ export const layer = Layer.effect(
   }),
 )
 
-export const defaultLayer = layer.pipe(
-  Layer.provide(EffectFlock.defaultLayer),
-  Layer.provide(FSUtil.defaultLayer),
-  Layer.provide(Env.defaultLayer),
-  Layer.provide(Auth.defaultLayer),
-  Layer.provide(Account.defaultLayer),
-  Layer.provide(Npm.defaultLayer),
-  Layer.provide(FetchHttpClient.layer),
-)
-
 export const node = LayerNode.make({
   service: Service,
   layer: layer,

packages/opencode/src/config/tui.ts

@@ -2,6 +2,8 @@ export * as TuiConfig from "./tui"
 
 import path from "path"
 import { mergeDeep, unique } from "remeda"
+import { AppNodeBuilder } from "@opencode-ai/core/effect/app-node-builder"
+import { LayerNode } from "@opencode-ai/core/effect/layer-node"
 import { Cause, Context, Effect, Fiber, Layer } from "effect"
 import { ConfigParse } from "@/config/parse"
 import * as ConfigPaths from "@/config/paths"
@@ -223,7 +225,7 @@ const loadState = Effect.fn("TuiConfig.loadState")(function* (ctx: { directory:
   }
 })
 
-export const layer = Layer.effect(
+const layer = Layer.effect(
   Service,
   Effect.gen(function* () {
     const directory = yield* CurrentWorkingDirectory
@@ -257,9 +259,9 @@ export const layer = Layer.effect(
   }).pipe(Effect.withSpan("TuiConfig.layer")),
 )
 
-export const defaultLayer = layer.pipe(Layer.provide(Npm.defaultLayer), Layer.provide(FSUtil.defaultLayer))
+export const node = LayerNode.make({ service: Service, layer, deps: [Npm.node, FSUtil.node] })
 
-const { runPromise } = makeRuntime(Service, defaultLayer)
+const { runPromise } = makeRuntime(Service, AppNodeBuilder.build(node))
 
 export async function waitForDependencies() {
   await runPromise((svc) => svc.waitForDependencies())

packages/opencode/src/control-plane/workspace.ts

@@ -31,8 +31,8 @@ import { waitEvent } from "./util"
 import { WorkspaceRef } from "@/effect/instance-ref"
 import { Vcs } from "@/project/vcs"
 import { InstanceStore } from "@/project/instance-store"
-import { InstanceBootstrap } from "@/project/bootstrap"
 import { WorkspaceAdapterRuntime } from "./workspace-adapter-runtime"
+import { AppNodeBuilderV1 } from "@/effect/app-node-builder-v1"
 import { WorkspaceEvent } from "@opencode-ai/schema/workspace-event"
 
 export const Info = Schema.Struct({
@@ -150,7 +150,7 @@ export class Service extends Context.Service<Service, Interface>()("@opencode/Wo
 
 export const use = serviceUse(Service)
 
-export const layer = Layer.effect(
+const layer = Layer.effect(
   Service,
   Effect.gen(function* () {
     const auth = yield* Auth.Service
@@ -601,7 +601,7 @@ export const layer = Layer.effect(
                   }),
                 fallback: "",
                 response: "text",
-              }).pipe(Effect.provide(InstanceStore.defaultLayer.pipe(Layer.provide(InstanceBootstrap.defaultLayer))))
+              }).pipe(Effect.provide(AppNodeBuilderV1.build(InstanceStore.node)))
             : ""
 
         if (sourcePatch) {
@@ -617,7 +617,7 @@ export const layer = Layer.effect(
                 body: HttpBody.jsonUnsafe({ patch: sourcePatch }),
               }),
             fallback: { applied: false },
-          }).pipe(Effect.provide(InstanceStore.defaultLayer.pipe(Layer.provide(InstanceBootstrap.defaultLayer))))
+          }).pipe(Effect.provide(AppNodeBuilderV1.build(InstanceStore.node)))
         }
 
         if (input.workspaceID === null) {
@@ -885,19 +885,6 @@ export const layer = Layer.effect(
   }),
 )
 
-export const defaultLayer = layer.pipe(
-  Layer.provide(Auth.defaultLayer),
-  Layer.provide(Session.defaultLayer),
-  Layer.provide(SessionPrompt.defaultLayer),
-  Layer.provide(Project.defaultLayer),
-  Layer.provide(Vcs.defaultLayer),
-  Layer.provide(FSUtil.defaultLayer),
-  Layer.provide(Database.defaultLayer),
-  Layer.provide(EventV2Bridge.defaultLayer),
-  Layer.provide(FetchHttpClient.layer),
-  Layer.provide(RuntimeFlags.defaultLayer),
-)
-
 const TIMEOUT = 5000
 
 type HistoryEvent = {

packages/opencode/src/effect/app-node-builder-v1.ts

@@ -0,0 +1,12 @@
+import { AppNodeBuilder } from "@opencode-ai/core/effect/app-node-builder"
+import { LayerNode } from "@opencode-ai/core/effect/layer-node"
+import { InstanceBootstrap } from "@/project/bootstrap"
+import { InstanceStore } from "@/project/instance-store"
+
+const bootstrapReplacement = [InstanceStore.bootstrapNode, InstanceBootstrap.node] as const
+
+export function build<A, E>(root: LayerNode.Node<A, E, any>, replacements: LayerNode.Replacements = []) {
+  return AppNodeBuilder.build(root, replacements.concat([bootstrapReplacement]))
+}
+
+export * as AppNodeBuilderV1 from "./app-node-builder-v1"

packages/opencode/src/effect/app-runtime.ts

@@ -38,7 +38,7 @@ import { Command } from "@/command"
 import { Truncate } from "@/tool/truncate"
 import { ToolRegistry } from "@/tool/registry"
 import { Format } from "@/format"
-import { InstanceLayer } from "@/project/instance-layer"
+import { InstanceStore } from "@/project/instance-store"
 import { Project } from "@/project/project"
 import { Vcs } from "@/project/vcs"
 import { Workspace } from "@/control-plane/workspace"
@@ -51,59 +51,62 @@ import { memoMap } from "@opencode-ai/core/effect/memo-map"
 import { Job } from "@/job"
 import { RuntimeFlags } from "@/effect/runtime-flags"
 import { EventV2Bridge } from "@/event-v2-bridge"
+import { LayerNode } from "@opencode-ai/core/effect/layer-node"
+import { AppNodeBuilderV1 } from "./app-node-builder-v1"
+import { SessionProjector } from "@opencode-ai/core/session/projector"
 
-export const AppLayer = Layer.mergeAll(
-  Npm.defaultLayer,
-  FSUtil.defaultLayer,
-  Database.defaultLayer,
-  Auth.defaultLayer,
-  Account.defaultLayer,
-  Config.defaultLayer,
-  Git.defaultLayer,
-  Storage.defaultLayer,
-  Snapshot.defaultLayer,
-  Plugin.defaultLayer,
-  ModelsDev.defaultLayer,
-  Provider.defaultLayer,
-  ProviderAuth.defaultLayer,
-  Agent.defaultLayer,
-  Skill.defaultLayer,
-  Discovery.defaultLayer,
-  Question.defaultLayer,
-  Permission.defaultLayer,
-  Todo.defaultLayer,
-  Session.defaultLayer,
-  SessionStatus.defaultLayer,
-  Job.defaultLayer,
-  RuntimeFlags.defaultLayer,
-  EventV2Bridge.defaultLayer,
-  SessionRunState.defaultLayer,
-  SessionProcessor.defaultLayer,
-  SessionCompaction.defaultLayer,
-  SessionRevert.defaultLayer,
-  SessionSummary.defaultLayer,
-  SessionPrompt.defaultLayer,
-  Instruction.defaultLayer,
-  LLM.defaultLayer,
-  LSP.defaultLayer,
-  MCP.defaultLayer,
-  McpAuth.defaultLayer,
-  Command.defaultLayer,
-  Truncate.defaultLayer,
-  ToolRegistry.defaultLayer,
-  Format.defaultLayer,
-  Project.defaultLayer,
-  Vcs.defaultLayer,
-  Workspace.defaultLayer,
-  Worktree.appLayer,
-  Installation.defaultLayer,
-  ShareNext.defaultLayer,
-  SessionShare.defaultLayer,
-).pipe(
-  Layer.provideMerge(Ripgrep.defaultLayer),
-  Layer.provideMerge(InstanceLayer.layer),
-  Layer.provideMerge(Observability.layer),
-)
+export const AppLayer = AppNodeBuilderV1.build(
+  LayerNode.group([
+    Npm.node,
+    FSUtil.node,
+    Database.node,
+    Auth.node,
+    Account.node,
+    Config.node,
+    Git.node,
+    Storage.node,
+    Snapshot.node,
+    Plugin.node,
+    ModelsDev.node,
+    Provider.node,
+    ProviderAuth.node,
+    Agent.node,
+    Skill.node,
+    Discovery.node,
+    Question.node,
+    Permission.node,
+    Todo.node,
+    Session.node,
+    SessionProjector.node,
+    SessionStatus.node,
+    Job.node,
+    RuntimeFlags.node,
+    EventV2Bridge.node,
+    SessionRunState.node,
+    SessionProcessor.node,
+    SessionCompaction.node,
+    SessionRevert.node,
+    SessionSummary.node,
+    SessionPrompt.node,
+    Instruction.node,
+    LLM.node,
+    LSP.node,
+    MCP.node,
+    McpAuth.node,
+    Command.node,
+    Truncate.node,
+    ToolRegistry.node,
+    Format.node,
+    InstanceStore.node,
+    Project.node,
+    Vcs.node,
+    Workspace.node,
+    Worktree.node,
+    Installation.node,
+    ShareNext.node,
+    SessionShare.node,
+  ]),
+).pipe(Layer.provideMerge(AppNodeBuilderV1.build(Ripgrep.node)), Layer.provideMerge(Observability.layer))
 
 const rt = ManagedRuntime.make(AppLayer, { memoMap })
 type Runtime = Pick<typeof rt, "runSync" | "runPromise" | "runPromiseExit" | "runFork" | "runCallback" | "dispose">

packages/opencode/src/effect/bootstrap-runtime.ts

@@ -1,4 +1,6 @@
 import { Layer, ManagedRuntime } from "effect"
+import { AppNodeBuilder } from "@opencode-ai/core/effect/app-node-builder"
+import { LayerNode } from "@opencode-ai/core/effect/layer-node"
 
 import { Plugin } from "@/plugin"
 import { LSP } from "@/lsp/lsp"
@@ -10,14 +12,8 @@ import { Config } from "@/config/config"
 import * as Observability from "@opencode-ai/core/observability"
 import { memoMap } from "@opencode-ai/core/effect/memo-map"
 
-export const BootstrapLayer = Layer.mergeAll(
-  Config.defaultLayer,
-  Plugin.defaultLayer,
-  ShareNext.defaultLayer,
-  Format.defaultLayer,
-  LSP.defaultLayer,
-  Vcs.defaultLayer,
-  Snapshot.defaultLayer,
+export const BootstrapLayer = AppNodeBuilder.build(
+  LayerNode.group([Config.node, Plugin.node, ShareNext.node, Format.node, LSP.node, Vcs.node, Snapshot.node]),
 ).pipe(Layer.provide(Observability.layer))
 
 export const BootstrapRuntime = ManagedRuntime.make(BootstrapLayer, { memoMap })

packages/opencode/src/effect/config-service.ts

@@ -14,9 +14,9 @@ export type Shape<Fields extends ConfigMap> = {
  */
 export type ServiceClass<Self, Id extends string, Service> = Context.ServiceClass<Self, Id, Service> & {
   /** Provide already-parsed config, useful in tests. */
-  readonly layer: (input: Service) => Layer.Layer<Self>
+  readonly configLayer: (input: Service) => Layer.Layer<Self>
   /** Parse config once from the active Effect ConfigProvider and provide the service. */
-  readonly defaultLayer: Layer.Layer<Self, Config.ConfigError>
+  readonly layer: Layer.Layer<Self, Config.ConfigError>
 }
 
 /**
@@ -35,19 +35,19 @@ export type ServiceClass<Self, Id extends string, Service> = Context.ServiceClas
  *   },
  * ) {}
  *
- * const live = ServerAuthConfig.defaultLayer
- * const test = ServerAuthConfig.layer({ password: Option.some("secret"), username: "kit" })
+ * const live = ServerAuthConfig.layer
+ * const test = ServerAuthConfig.configLayer({ password: Option.some("secret"), username: "kit" })
  * ```
  */
 export const Service =
   <Self>() =>
   <const Id extends string, const Fields extends ConfigMap>(id: Id, fields: Fields) => {
     class ConfigTag extends Context.Service<Self, Shape<Fields>>()(id) {
-      static layer(input: Shape<Fields>) {
+      static configLayer(input: Shape<Fields>) {
         return Layer.succeed(this, this.of(input))
       }
 
-      static get defaultLayer() {
+      static get layer() {
         const tag = this
         return Layer.effect(
           tag,

packages/opencode/src/effect/runtime-flags.ts

@@ -57,7 +57,7 @@ export class Service extends ConfigService.Service<Service>()("@opencode/Runtime
 
 export type Info = Context.Service.Shape<typeof Service>
 
-const emptyConfigLayer = Service.defaultLayer.pipe(
+const emptyConfigLayer = Service.layer.pipe(
   Layer.provide(ConfigProvider.layer(ConfigProvider.fromUnknown({}))),
   Layer.orDie,
 )
@@ -71,9 +71,7 @@ export const layer = (overrides: Partial<Info> = {}) =>
     }),
   ).pipe(Layer.provide(emptyConfigLayer))
 
-export const defaultLayer = Service.defaultLayer.pipe(Layer.orDie)
-
-export const node = LayerNode.make({ service: Service, layer: defaultLayer, deps: [] })
+export const node = LayerNode.make({ service: Service, layer: Service.layer.pipe(Layer.orDie), deps: [] })
 
 export * as RuntimeFlags from "./runtime-flags"
 import { LayerNode } from "@opencode-ai/core/effect/layer-node"

packages/opencode/src/env/index.ts

@@ -16,7 +16,7 @@ export class Service extends Context.Service<Service, Interface>()("@opencode/En
 
 export const use = serviceUse(Service)
 
-export const layer = Layer.effect(
+const layer = Layer.effect(
   Service,
   Effect.gen(function* () {
     const state = yield* InstanceState.make<State>(Effect.fn("Env.state")(() => Effect.succeed({ ...process.env })))
@@ -36,8 +36,6 @@ export const layer = Layer.effect(
   }),
 )
 
-export const defaultLayer = layer
-
 export const node = LayerNode.make({ service: Service, layer: layer, deps: [] })
 
 export * as Env from "."

packages/opencode/src/event-v2-bridge.ts

@@ -11,7 +11,7 @@ import { Context, Effect, Layer } from "effect"
 
 export class Service extends Context.Service<Service, EventV2.Interface>()("@opencode/EventV2Bridge") {}
 
-export const layer = Layer.effect(
+const layer = Layer.effect(
   Service,
   Effect.gen(function* () {
     const events = yield* EventV2.Service
@@ -66,8 +66,6 @@ export const layer = Layer.effect(
   }),
 )
 
-export const defaultLayer = layer.pipe(Layer.provide(EventV2.defaultLayer))
-
 export const node = LayerNode.make({ service: Service, layer: layer, deps: [EventV2.node] })
 
 export * as EventV2Bridge from "./event-v2-bridge"

packages/opencode/src/format/index.ts

@@ -28,7 +28,7 @@ export class Service extends Context.Service<Service, Interface>()("@opencode/Fo
 
 export const use = serviceUse(Service)
 
-export const layer = Layer.effect(
+const layer = Layer.effect(
   Service,
   Effect.gen(function* () {
     const config = yield* Config.Service
@@ -194,12 +194,6 @@ export const layer = Layer.effect(
   }),
 )
 
-export const defaultLayer = layer.pipe(
-  Layer.provide(Config.defaultLayer),
-  Layer.provide(AppProcess.defaultLayer),
-  Layer.provide(RuntimeFlags.defaultLayer),
-)
-
 export const node = LayerNode.make({
   service: Service,
   layer: layer,

packages/opencode/src/git/index.ts

@@ -100,7 +100,7 @@ const kind = (code: string): Kind => {
 
 export class Service extends Context.Service<Service, Interface>()("@opencode/Git") {}
 
-export const layer = Layer.effect(
+const layer = Layer.effect(
   Service,
   Effect.gen(function* () {
     const appProcess = yield* AppProcess.Service
@@ -343,8 +343,6 @@ export const layer = Layer.effect(
   }),
 )
 
-export const defaultLayer = layer.pipe(Layer.provide(AppProcess.defaultLayer))
-
 export const node = LayerNode.make({ service: Service, layer: layer, deps: [AppProcess.node] })
 
 export * as Git from "."

packages/opencode/src/image/image.ts

@@ -56,7 +56,7 @@ export interface Interface {
 
 export class Service extends Context.Service<Service, Interface>()("@opencode/Image") {}
 
-export const layer = Layer.effect(
+const layer = Layer.effect(
   Service,
   Effect.gen(function* () {
     const config = yield* Config.Service
@@ -167,8 +167,6 @@ export const layer = Layer.effect(
   }),
 )
 
-export const defaultLayer = layer.pipe(Layer.provide(Config.defaultLayer))
-
 export const node = LayerNode.make({ service: Service, layer: layer, deps: [Config.node] })
 
 export * as Image from "./image"

packages/opencode/src/installation/index.ts

@@ -1,8 +1,9 @@
 import { LayerNode } from "@opencode-ai/core/effect/layer-node"
+import { AppNodeBuilder } from "@opencode-ai/core/effect/app-node-builder"
 import { httpClient } from "@opencode-ai/core/effect/app-node-platform"
 import { Effect, Layer, Schema, Context, Stream } from "effect"
 import { serviceUse } from "@opencode-ai/core/effect/service-use"
-import { FetchHttpClient, HttpClient, HttpClientRequest, HttpClientResponse } from "effect/unstable/http"
+import { HttpClient, HttpClientRequest, HttpClientResponse } from "effect/unstable/http"
 import { withTransientReadRetry } from "@/util/effect-http-client"
 import { errorMessage } from "@/util/error"
 import { ChildProcess } from "effect/unstable/process"
@@ -82,7 +83,7 @@ export class Service extends Context.Service<Service, Interface>()("@opencode/In
 
 export const use = serviceUse(Service)
 
-export const layer: Layer.Layer<Service, never, HttpClient.HttpClient | AppProcess.Service> = Layer.effect(
+const layer: Layer.Layer<Service, never, HttpClient.HttpClient | AppProcess.Service> = Layer.effect(
   Service,
   Effect.gen(function* () {
     const http = yield* HttpClient.HttpClient
@@ -324,14 +325,12 @@ export const layer: Layer.Layer<Service, never, HttpClient.HttpClient | AppProce
   }),
 )
 
-export const defaultLayer = layer.pipe(Layer.provide(FetchHttpClient.layer), Layer.provide(AppProcess.defaultLayer))
+export const node = LayerNode.make({ service: Service, layer: layer, deps: [httpClient, AppProcess.node] })
 
-const { runPromise } = makeRuntime(Service, defaultLayer)
+const { runPromise } = makeRuntime(Service, AppNodeBuilder.build(node))
 
 export const latest = (...args: Parameters<Interface["latest"]>) => runPromise((s) => s.latest(...args))
 export const method = () => runPromise((s) => s.method())
 export const upgrade = (...args: Parameters<Interface["upgrade"]>) => runPromise((s) => s.upgrade(...args))
 
-export const node = LayerNode.make({ service: Service, layer: layer, deps: [httpClient, AppProcess.node] })
-
 export * as Installation from "."

packages/opencode/src/job.ts

@@ -34,8 +34,6 @@ export const layer = Layer.effect(
   }),
 )
 
-export const defaultLayer = layer
-
 export const node = LayerNode.make({ service: Service, layer, deps: [] })
 
 export * as Job from "./job"

packages/opencode/src/lsp/lsp.ts

@@ -135,7 +135,7 @@ export interface Interface {
 
 export class Service extends Context.Service<Service, Interface>()("@opencode/LSP") {}
 
-export const layer = Layer.effect(
+const layer = Layer.effect(
   Service,
   Effect.gen(function* () {
     const config = yield* Config.Service
@@ -496,12 +496,6 @@ export const layer = Layer.effect(
   }),
 )
 
-export const defaultLayer = layer.pipe(
-  Layer.provide(Config.defaultLayer),
-  Layer.provide(RuntimeFlags.defaultLayer),
-  Layer.provide(EventV2Bridge.defaultLayer),
-)
-
 export * as Diagnostic from "./diagnostic"
 
 export const node = LayerNode.make({

packages/opencode/src/mcp/auth.ts

@@ -56,7 +56,7 @@ export class Service extends Context.Service<Service, Interface>()("@opencode/Mc
 
 export const use = serviceUse(Service)
 
-export const layer = Layer.effect(
+const layer = Layer.effect(
   Service,
   Effect.gen(function* () {
     const fs = yield* FSUtil.Service
@@ -158,8 +158,6 @@ export const layer = Layer.effect(
   }),
 )
 
-export const defaultLayer = layer.pipe(Layer.provide(EffectFlock.defaultLayer), Layer.provide(FSUtil.defaultLayer))
-
 export const node = LayerNode.make({ service: Service, layer: layer, deps: [FSUtil.node, EffectFlock.node] })
 
 export * as McpAuth from "./auth"

packages/opencode/src/mcp/catalog.ts

@@ -72,7 +72,8 @@ export function convertTool(mcpTool: MCPToolDef, client: Client, timeout?: numbe
             .filter((text) => text.trim())
             .join("\n\n") || "MCP tool returned an error",
         )
-      if (result.structuredContent === undefined || result.structuredContent === null) return result
+      if (result.content.length > 0 || result.structuredContent === undefined || result.structuredContent === null)
+        return result
       return {
         ...result,
         content: [{ type: "text" as const, text: JSON.stringify(result.structuredContent) }],

packages/opencode/src/mcp/index.ts

@@ -194,7 +194,7 @@ export class Service extends Context.Service<Service, Interface>()("@opencode/MC
 
 export const use = serviceUse(Service)
 
-export const layer = Layer.effect(
+const layer = Layer.effect(
   Service,
   Effect.gen(function* () {
     const spawner = yield* ChildProcessSpawner.ChildProcessSpawner
@@ -946,7 +946,7 @@ export const layer = Layer.effect(
 
       const mcpConfig = yield* requireMcpConfig(mcpName)
 
-      return yield* createAndStore(mcpName, mcpConfig)
+      return yield* createAndStore(mcpName, { ...mcpConfig, enabled: true })
     })
 
     const removeAuth = Effect.fn("MCP.removeAuth")(function* (mcpName: string) {
@@ -1003,16 +1003,6 @@ export const layer = Layer.effect(
 
 export type AuthStatus = "authenticated" | "expired" | "not_authenticated"
 
-// --- Per-service runtime ---
-
-export const defaultLayer = layer.pipe(
-  Layer.provide(McpAuth.defaultLayer),
-  Layer.provide(EventV2Bridge.defaultLayer),
-  Layer.provide(Config.defaultLayer),
-  Layer.provide(CrossSpawnSpawner.defaultLayer),
-  Layer.provide(FSUtil.defaultLayer),
-)
-
 export const node = LayerNode.make({
   service: Service,
   layer: layer,

packages/opencode/src/permission/index.ts

@@ -39,7 +39,7 @@ export function evaluate(permission: string, pattern: string, ...rulesets: Permi
 
 export class Service extends Context.Service<Service, Interface>()("@opencode/Permission") {}
 
-export const layer = Layer.effect(
+const layer = Layer.effect(
   Service,
   Effect.gen(function* () {
     const events = yield* EventV2Bridge.Service
@@ -213,8 +213,6 @@ export function disabled(tools: string[], ruleset: PermissionV1.Ruleset): Set<st
   )
 }
 
-export const defaultLayer = layer.pipe(Layer.provide(EventV2Bridge.defaultLayer))
-
 export const node = LayerNode.make({ service: Service, layer: layer, deps: [EventV2Bridge.node] })
 
 export * as Permission from "."

packages/opencode/src/plugin/index.ts

@@ -120,7 +120,7 @@ async function applyPlugin(load: PluginLoader.Loaded, input: PluginInput, hooks:
   }
 }
 
-export const layer = Layer.effect(
+const layer = Layer.effect(
   Service,
   Effect.gen(function* () {
     const events = yield* EventV2Bridge.Service
@@ -305,12 +305,6 @@ export const layer = Layer.effect(
   }),
 )
 
-export const defaultLayer = layer.pipe(
-  Layer.provide(EventV2Bridge.defaultLayer),
-  Layer.provide(Config.defaultLayer),
-  Layer.provide(RuntimeFlags.defaultLayer),
-)
-
 export const node = LayerNode.make({
   service: Service,
   layer: layer,

packages/opencode/src/plugin/tui/runtime.ts

@@ -14,6 +14,7 @@ import {
 import path from "path"
 import { fileURLToPath } from "url"
 import { TuiConfig } from "@/config/tui"
+import { AppNodeBuilder } from "@opencode-ai/core/effect/app-node-builder"
 import { errorData, errorMessage } from "@opencode-ai/tui/util/error"
 import { isRecord } from "@opencode-ai/tui/util/record"
 import { resolveHostAttentionSoundPaths } from "@/config/tui-host-attention"
@@ -1082,7 +1083,7 @@ async function load(input: {
     const flags = await Effect.runPromise(
       Effect.gen(function* () {
         return yield* RuntimeFlags.Service
-      }).pipe(Effect.provide(RuntimeFlags.defaultLayer)),
+      }).pipe(Effect.provide(AppNodeBuilder.build(RuntimeFlags.node))),
     )
     const pluginOrigins = config.plugin_origins ?? (await TuiConfig.pluginOrigins())
     const records = Flag.OPENCODE_PURE ? [] : pluginOrigins

packages/opencode/src/project/bootstrap.ts

@@ -1,4 +1,4 @@
-import { LayerNode } from "@opencode-ai/core/effect/layer-node"
+import { makeGlobalNode } from "@opencode-ai/core/effect/app-node"
 import { Plugin } from "../plugin"
 import { Format } from "../format"
 import { LSP } from "@/lsp/lsp"
@@ -14,7 +14,7 @@ import { Service } from "./bootstrap-service"
 export { Service } from "./bootstrap-service"
 export type { Interface } from "./bootstrap-service"
 
-export const layer = Layer.effect(
+const layer = Layer.effect(
   Service,
   Effect.gen(function* () {
     // Yield each bootstrap dep at layer init so `run` itself has R = never.
@@ -49,20 +49,7 @@ export const layer = Layer.effect(
   }),
 )
 
-export const defaultLayer: Layer.Layer<Service> = layer.pipe(
-  Layer.provide([
-    Config.defaultLayer,
-    Format.defaultLayer,
-    LSP.defaultLayer,
-    Plugin.defaultLayer,
-    Project.defaultLayer,
-    ShareNext.defaultLayer,
-    Snapshot.defaultLayer,
-    Vcs.defaultLayer,
-  ]),
-)
-
-export const node = LayerNode.make({
+export const node = makeGlobalNode({
   service: Service,
   layer: layer,
   deps: [Config.node, Format.node, LSP.node, Plugin.node, Project.node, ShareNext.node, Snapshot.node, Vcs.node],

packages/opencode/src/project/instance-layer.ts

@@ -1,11 +0,0 @@
-import { Effect, Layer } from "effect"
-import { InstanceStore } from "./instance-store"
-
-export const layer = Layer.unwrap(
-  Effect.promise(async () => {
-    const { InstanceBootstrap } = await import("./bootstrap")
-    return InstanceStore.defaultLayer.pipe(Layer.provide(InstanceBootstrap.defaultLayer))
-  }),
-)
-
-export * as InstanceLayer from "./instance-layer"

packages/opencode/src/project/instance-store.ts

@@ -1,4 +1,5 @@
 import { LayerNode } from "@opencode-ai/core/effect/layer-node"
+import { makeGlobalNode, Node } from "@opencode-ai/core/effect/app-node"
 import { GlobalBus } from "@/bus/global"
 import { serviceUse } from "@opencode-ai/core/effect/service-use"
 import { WorkspaceContext } from "@/control-plane/workspace-context"
@@ -8,7 +9,6 @@ import { FSUtil } from "@opencode-ai/core/fs-util"
 import { Context, Deferred, Duration, Effect, Exit, Layer, Scope } from "effect"
 import { type InstanceContext } from "./instance-context"
 import { InstanceBootstrap } from "./bootstrap-service"
-import { InstanceBootstrap as InstanceBootstrapGraph } from "./bootstrap"
 import * as Project from "./project"
 
 export interface LoadInput {
@@ -34,7 +34,7 @@ interface Entry {
   readonly deferred: Deferred.Deferred<InstanceContext>
 }
 
-export const layer: Layer.Layer<Service, never, Project.Service | InstanceBootstrap.Service> = Layer.effect(
+const layer: Layer.Layer<Service, never, Project.Service | InstanceBootstrap.Service> = Layer.effect(
   Service,
   Effect.gen(function* () {
     const project = yield* Project.Service
@@ -202,12 +202,12 @@ export const layer: Layer.Layer<Service, never, Project.Service | InstanceBootst
   }),
 )
 
-export const defaultLayer = layer.pipe(Layer.provide(Project.defaultLayer))
+export const bootstrapNode = LayerNode.unbound(InstanceBootstrap.Service, Node.tags.values.global)
 
-export const node = LayerNode.make({
+export const node = makeGlobalNode({
   service: Service,
   layer: layer,
-  deps: [Project.node, InstanceBootstrapGraph.node],
+  deps: [Project.node, bootstrapNode],
 })
 
 export * as InstanceStore from "./instance-store"

packages/opencode/src/project/project.ts

@@ -103,7 +103,7 @@ export class Service extends Context.Service<Service, Interface>()("@opencode/Pr
 
 type GitResult = { code: number; text: string; stderr: string }
 
-export const layer = Layer.effect(
+const layer = Layer.effect(
   Service,
   Effect.gen(function* () {
     const fs = yield* FSUtil.Service
@@ -463,17 +463,6 @@ export const layer = Layer.effect(
   }),
 )
 
-export const defaultLayer = layer.pipe(
-  Layer.provide(EventV2Bridge.defaultLayer),
-  Layer.provide(ProjectV2.defaultLayer),
-  Layer.provide(ProjectDirectories.defaultLayer),
-  Layer.provide(AppProcess.defaultLayer),
-  Layer.provide(CrossSpawnSpawner.defaultLayer),
-  Layer.provide(FSUtil.defaultLayer),
-  Layer.provide(Database.defaultLayer),
-  Layer.provide(RuntimeFlags.defaultLayer),
-)
-
 export const use = serviceUse(Service)
 
 export const node = LayerNode.make({

packages/opencode/src/project/vcs.ts

@@ -295,7 +295,7 @@ interface State {
 
 export class Service extends Context.Service<Service, Interface>()("@opencode/Vcs") {}
 
-export const layer: Layer.Layer<Service, never, Git.Service | EventV2Bridge.Service> = Layer.effect(
+const layer: Layer.Layer<Service, never, Git.Service | EventV2Bridge.Service> = Layer.effect(
   Service,
   Effect.gen(function* () {
     const git = yield* Git.Service
@@ -418,8 +418,6 @@ export const layer: Layer.Layer<Service, never, Git.Service | EventV2Bridge.Serv
   }),
 )
 
-export const defaultLayer = layer.pipe(Layer.provide(Git.defaultLayer), Layer.provide(EventV2Bridge.defaultLayer))
-
 export const node = LayerNode.make({ service: Service, layer: layer, deps: [Git.node, EventV2Bridge.node] })
 
 export * as Vcs from "./vcs"

packages/opencode/src/provider/auth.ts

@@ -106,7 +106,7 @@ export class Service extends Context.Service<Service, Interface>()("@opencode/Pr
 
 export const use = serviceUse(Service)
 
-export const layer: Layer.Layer<Service, never, Auth.Service | Plugin.Service> = Layer.effect(
+const layer: Layer.Layer<Service, never, Auth.Service | Plugin.Service> = Layer.effect(
   Service,
   Effect.gen(function* () {
     const auth = yield* Auth.Service
@@ -224,10 +224,6 @@ export const layer: Layer.Layer<Service, never, Auth.Service | Plugin.Service> =
   }),
 )
 
-export const defaultLayer = Layer.suspend(() =>
-  layer.pipe(Layer.provide(Auth.defaultLayer), Layer.provide(Plugin.defaultLayer)),
-)
-
 export const node = LayerNode.make({ service: Service, layer: layer, deps: [Auth.node, Plugin.node] })
 
 export * as ProviderAuth from "./auth"

packages/opencode/src/provider/provider.ts

@@ -1299,7 +1299,7 @@ function modelSuggestions(provider: Info | undefined, modelID: ModelV2.ID, enabl
     .map((item) => item.id)
 }
 
-export const layer = Layer.effect(
+const layer = Layer.effect(
   Service,
   Effect.gen(function* () {
     const fs = yield* FSUtil.Service
@@ -1949,18 +1949,6 @@ export const layer = Layer.effect(
   }),
 )
 
-export const defaultLayer = Layer.suspend(() =>
-  layer.pipe(
-    Layer.provide(FSUtil.defaultLayer),
-    Layer.provide(Env.defaultLayer),
-    Layer.provide(Config.defaultLayer),
-    Layer.provide(Auth.defaultLayer),
-    Layer.provide(Plugin.defaultLayer),
-    Layer.provide(ModelsDev.defaultLayer),
-    Layer.provide(RuntimeFlags.defaultLayer),
-  ),
-)
-
 const priority = ["gpt-5", "claude-sonnet-4", "big-pickle", "gemini-3-pro"]
 const smallModelFamilyPriority = ["gemini-flash", "gpt-nano", "claude-haiku"]
 export function sort<T extends { id: string }>(models: T[]) {

packages/opencode/src/provider/transform.ts

@@ -463,7 +463,9 @@ export function message(msgs: ModelMessage[], model: Provider.Model, options: Re
   if (
     options.store !== true &&
     key &&
-    ["@ai-sdk/openai", "@ai-sdk/azure", "@ai-sdk/amazon-bedrock/mantle"].includes(model.api.npm)
+    ["@ai-sdk/openai", "@ai-sdk/azure", "@ai-sdk/amazon-bedrock/mantle", "@ai-sdk/github-copilot"].includes(
+      model.api.npm,
+    )
   ) {
     msgs = mapProviderOptions(msgs, (options) => {
       if (!options?.[key] || !("itemId" in options[key])) return options
@@ -605,8 +607,14 @@ function anthropicOpus47OrLater(apiId: string) {
   return major > 4 || (major === 4 && minor >= 7)
 }
 
+function anthropicSonnet5OrLater(apiId: string) {
+  const version = /sonnet-(\d+)(?:[.@-]|$)|claude-(\d+)-sonnet(?:[.@-]|$)/i.exec(apiId)
+  if (!version) return false
+  return Number(version[1] ?? version[2]) >= 5
+}
+
 function anthropicAdaptiveEfforts(apiId: string): string[] | null {
-  if (anthropicOpus47OrLater(apiId) || apiId.includes("fable-5")) {
+  if (anthropicOpus47OrLater(apiId) || anthropicSonnet5OrLater(apiId) || apiId.includes("fable-5")) {
     return ["low", "medium", "high", "xhigh", "max"]
   }
   if (
@@ -620,7 +628,7 @@ function anthropicAdaptiveEfforts(apiId: string): string[] | null {
 }
 
 function anthropicOmitsThinking(apiId: string) {
-  return anthropicOpus47OrLater(apiId) || apiId.includes("fable-5")
+  return anthropicOpus47OrLater(apiId) || anthropicSonnet5OrLater(apiId) || apiId.includes("fable-5")
 }
 
 function googleThinkingLevelEfforts(apiId: string) {
@@ -1255,6 +1263,16 @@ const SLUG_OVERRIDES: Record<string, string> = {
 }
 
 export function providerOptions(model: Provider.Model, options: { [x: string]: any }) {
+  const usesOpenAIReasoningGate =
+    model.api.npm === "@ai-sdk/openai" ||
+    model.api.npm === "@ai-sdk/azure" ||
+    model.api.npm === "@ai-sdk/amazon-bedrock/mantle"
+  const normalized =
+    usesOpenAIReasoningGate &&
+    (model.capabilities.reasoning || options.reasoningEffort !== undefined || options.reasoningSummary !== undefined)
+      ? { ...options, forceReasoning: true }
+      : options
+
   if (model.api.npm === "@ai-sdk/gateway") {
     // Gateway providerOptions are split across two namespaces:
     // - `gateway`: gateway-native routing/caching controls (order, only, byok, etc.)
@@ -1264,8 +1282,8 @@ export function providerOptions(model: Provider.Model, options: { [x: string]: a
     const i = model.api.id.indexOf("/")
     const rawSlug = i > 0 ? model.api.id.slice(0, i) : undefined
     const slug = rawSlug ? (SLUG_OVERRIDES[rawSlug] ?? rawSlug) : undefined
-    const gateway = options.gateway
-    const rest = Object.fromEntries(Object.entries(options).filter(([k]) => k !== "gateway"))
+    const gateway = normalized.gateway
+    const rest = Object.fromEntries(Object.entries(normalized).filter(([k]) => k !== "gateway"))
     const has = Object.keys(rest).length > 0
 
     const result: Record<string, any> = {}
@@ -1299,9 +1317,9 @@ export function providerOptions(model: Provider.Model, options: { [x: string]: a
   // providerOptions["openai"], but OpenAIResponsesLanguageModel checks
   // "azure" first. Pass both so model options work on either code path.
   if (model.api.npm === "@ai-sdk/azure") {
-    return { openai: options, azure: options }
+    return { openai: normalized, azure: normalized }
   }
-  return { [key]: options }
+  return { [key]: normalized }
 }
 
 export function maxOutputTokens(model: Provider.Model, outputTokenMax = OUTPUT_TOKEN_MAX): number {

packages/opencode/src/question/index.ts

@@ -61,7 +61,7 @@ export interface Interface {
 
 export class Service extends Context.Service<Service, Interface>()("@opencode/Question") {}
 
-export const layer = Layer.effect(
+const layer = Layer.effect(
   Service,
   Effect.gen(function* () {
     const events = yield* EventV2Bridge.Service
@@ -156,8 +156,6 @@ export const layer = Layer.effect(
   }),
 )
 
-export const defaultLayer = layer.pipe(Layer.provide(EventV2Bridge.defaultLayer))
-
 export const node = LayerNode.make({ service: Service, layer: layer, deps: [EventV2Bridge.node] })
 
 export * as Question from "."

packages/opencode/src/server/routes/instance/httpapi/server.ts

@@ -51,6 +51,7 @@ import { Worktree } from "@/worktree"
 import { RuntimeFlags } from "@/effect/runtime-flags"
 import { MoveSession } from "@opencode-ai/core/control-plane/move-session"
 import { Database } from "@opencode-ai/core/database/database"
+import { AppNodeBuilderV1 } from "@/effect/app-node-builder-v1"
 import { LayerNode } from "@opencode-ai/core/effect/layer-node"
 import { httpClient } from "@opencode-ai/core/effect/app-node-platform"
 import { EventV2 } from "@opencode-ai/core/event"
@@ -63,6 +64,7 @@ import { PtyTicket } from "@opencode-ai/core/pty/ticket"
 import { Ripgrep } from "@opencode-ai/core/ripgrep"
 import { SessionProjector } from "@opencode-ai/core/session/projector"
 import { SessionV2 } from "@opencode-ai/core/session"
+import { SessionExecution } from "@opencode-ai/core/session/execution"
 import * as SessionExecutionLocal from "@opencode-ai/core/session/execution/local"
 import { lazy } from "@/util/lazy"
 import { CorsConfig, isAllowedCorsOrigin, type CorsOptions } from "@opencode-ai/server/cors"
@@ -98,7 +100,7 @@ import { sessionHandlers } from "./handlers/session"
 import { syncHandlers } from "./handlers/sync"
 import { tuiHandlers } from "./handlers/tui"
 import { handlers } from "@opencode-ai/server/handlers"
-import { locationServiceMapLayer } from "@opencode-ai/core/location-services"
+import { buildLocationServiceMap, LocationServiceMap } from "@opencode-ai/core/location-services"
 import { layer as locationLayer } from "@opencode-ai/server/location"
 import { sessionLocationLayer } from "@opencode-ai/server/middleware/session-location"
 import { PtyEnvironment } from "@opencode-ai/server/pty-environment"
@@ -131,10 +133,10 @@ const cors = (corsOptions?: CorsOptions) =>
 // - ptyConnectApiRoutes: typed WebSocket upgrade route with ticket-aware auth.
 // - instanceApiRoutes: remaining typed instance routes.
 // - uiRoute: raw catch-all fallback; auth is router middleware so public static assets can bypass it.
-const authOnlyRouterLayer = authorizationRouterMiddleware.layer.pipe(Layer.provide(ServerAuth.Config.defaultLayer))
-const httpApiAuthLayer = authorizationLayer.pipe(Layer.provide(ServerAuth.Config.defaultLayer))
-const ptyConnectHttpApiAuthLayer = ptyConnectAuthorizationLayer.pipe(Layer.provide(ServerAuth.Config.defaultLayer))
-const serverHttpApiAuthLayer = serverAuthorizationLayer.pipe(Layer.provide(ServerAuth.Config.defaultLayer))
+const authOnlyRouterLayer = authorizationRouterMiddleware.layer.pipe(Layer.provide(ServerAuth.Config.layer))
+const httpApiAuthLayer = authorizationLayer.pipe(Layer.provide(ServerAuth.Config.layer))
+const ptyConnectHttpApiAuthLayer = ptyConnectAuthorizationLayer.pipe(Layer.provide(ServerAuth.Config.layer))
+const serverHttpApiAuthLayer = serverAuthorizationLayer.pipe(Layer.provide(ServerAuth.Config.layer))
 const workspaceRoutingLive = workspaceRoutingLayer.pipe(Layer.provide(Socket.layerWebSocketConstructorGlobal))
 const rootApiRoutes = HttpApiBuilder.layer(RootHttpApi).pipe(
   Layer.provide([controlHandlers, controlPlaneHandlers, globalHandlers]),
@@ -269,6 +271,8 @@ const app = LayerNode.group([
 export function createRoutes(
   corsOptions?: CorsOptions,
 ): Layer.Layer<never, EffectConfig.ConfigError, RouteRequirements> {
+  const locationServiceMapV2 = buildLocationServiceMap()
+
   return Layer.mergeAll(
     rootApiRoutes,
     eventApiRoutes,
@@ -284,7 +288,7 @@ export function createRoutes(
       corsVaryFix,
       fenceLayer,
       cors(corsOptions),
-      MoveSession.defaultLayer,
+      AppNodeBuilderV1.build(MoveSession.node, [[LocationServiceMap.node, locationServiceMapV2]]),
       HttpServer.layerServices,
     ]),
     Layer.provide(Layer.succeed(CorsConfig)(corsOptions)),
@@ -294,14 +298,14 @@ export function createRoutes(
     Layer.provide(locationLayer),
     Layer.provide(PtyEnvironment.layer),
     Layer.provide(
-      SessionV2.defaultLayer.pipe(
-        Layer.provide(SessionExecutionLocal.defaultLayer),
-        Layer.provide(locationServiceMapLayer),
-      ),
+      AppNodeBuilderV1.build(SessionV2.node, [
+        [LocationServiceMap.node, locationServiceMapV2],
+        [SessionExecution.node, SessionExecutionLocal.node],
+      ]),
     ),
-    Layer.provide(locationServiceMapLayer),
+    Layer.provide(locationServiceMapV2),
 
-    Layer.provide(LayerNode.compile(app)),
+    Layer.provide(AppNodeBuilderV1.build(app)),
   )
 }
 

packages/opencode/src/server/routes/instance/httpapi/websocket-tracker.ts

@@ -1,4 +1,5 @@
 import { Context, Effect, Layer, Option } from "effect"
+import { LayerNode } from "@opencode-ai/core/effect/layer-node"
 import * as Socket from "effect/unstable/socket/Socket"
 
 export const SERVER_CLOSING_EVENT = () => new Socket.CloseEvent(1001, "server closing")
@@ -13,7 +14,7 @@ export interface Interface {
 
 export class Service extends Context.Service<Service, Interface>()("@opencode/HttpApiWebSocketTracker") {}
 
-export const layer = Layer.sync(Service)(() => {
+const layer = Layer.sync(Service)(() => {
   const sockets = new Set<Close>()
   let closing = false
   return Service.of({
@@ -44,6 +45,8 @@ export const layer = Layer.sync(Service)(() => {
   })
 })
 
+export const node = LayerNode.make({ service: Service, layer, deps: [] })
+
 export const register = (close: Close) =>
   Effect.gen(function* () {
     const tracker = yield* Effect.serviceOption(Service)

packages/opencode/src/server/server.ts

@@ -1,6 +1,7 @@
 import "./init-projectors"
 
 import { NodeHttpServer } from "@effect/platform-node"
+import { AppNodeBuilder } from "@opencode-ai/core/effect/app-node-builder"
 import { ConfigProvider, Context, Effect, Exit, Layer, Scope } from "effect"
 import { HttpRouter, HttpServer } from "effect/unstable/http"
 import { OpenApi } from "effect/unstable/httpapi"
@@ -102,7 +103,7 @@ function listenerLayer(opts: ListenOptions, port: number) {
     disableLogger: true,
     disableListenLog: true,
   }).pipe(
-    Layer.provideMerge(WebSocketTracker.layer),
+    Layer.provideMerge(AppNodeBuilder.build(WebSocketTracker.node)),
     Layer.provideMerge(serverLayer({ port, hostname: opts.hostname })),
     // Install a fresh `ConfigProvider` per listener so `Config.string(...)`
     // reads reflect the current `process.env`. Effect's default

packages/opencode/src/session/compaction.ts

@@ -153,7 +153,7 @@ export class Service extends Context.Service<Service, Interface>()("@opencode/Se
 
 export const use = serviceUse(Service)
 
-export const layer = Layer.effect(
+const layer = Layer.effect(
   Service,
   Effect.gen(function* () {
     const config = yield* Config.Service
@@ -544,19 +544,6 @@ export const layer = Layer.effect(
   }),
 )
 
-export const defaultLayer = Layer.suspend(() =>
-  layer.pipe(
-    Layer.provide(Provider.defaultLayer),
-    Layer.provide(Session.defaultLayer),
-    Layer.provide(SessionProcessor.defaultLayer),
-    Layer.provide(Agent.defaultLayer),
-    Layer.provide(Plugin.defaultLayer),
-    Layer.provide(Config.defaultLayer),
-    Layer.provide(RuntimeFlags.defaultLayer),
-    Layer.provide(EventV2Bridge.defaultLayer),
-  ),
-)
-
 export const node = LayerNode.make({
   service: Service,
   layer: layer,

packages/opencode/src/session/instruction.ts

@@ -45,7 +45,7 @@ export interface Interface {
 
 export class Service extends Context.Service<Service, Interface>()("@opencode/Instruction") {}
 
-export const layer: Layer.Layer<
+const layer: Layer.Layer<
   Service,
   never,
   FSUtil.Service | Config.Service | Global.Service | HttpClient.HttpClient | RuntimeFlags.Service
@@ -224,14 +224,6 @@ export const layer: Layer.Layer<
   }),
 )
 
-export const defaultLayer = layer.pipe(
-  Layer.provide(Config.defaultLayer),
-  Layer.provide(Global.layer),
-  Layer.provide(FSUtil.defaultLayer),
-  Layer.provide(FetchHttpClient.layer),
-  Layer.provide(RuntimeFlags.defaultLayer),
-)
-
 export function loaded(messages: SessionV1.WithParts[]) {
   return extract(messages)
 }

packages/opencode/src/session/llm.ts

@@ -8,7 +8,7 @@ import { Context, Effect, Layer } from "effect"
 import * as Stream from "effect/Stream"
 import { streamText, wrapLanguageModel, type ModelMessage, type Tool } from "ai"
 import type { LLMEvent } from "@opencode-ai/llm"
-import { LLMClient, RequestExecutor, WebSocketExecutor } from "@opencode-ai/llm/route"
+import { LLMClient } from "@opencode-ai/llm/route"
 import type { LLMClientService } from "@opencode-ai/llm/route"
 import { GitLabWorkflowLanguageModel } from "gitlab-ai-provider"
 import { ProviderTransform } from "@/provider/transform"
@@ -384,26 +384,11 @@ const live: Layer.Layer<
   }),
 )
 
-export const layer = live.pipe(Layer.provide(Permission.defaultLayer), Layer.provide(EventV2Bridge.defaultLayer))
-
-export const defaultLayer = Layer.suspend(() =>
-  layer.pipe(
-    Layer.provide(Auth.defaultLayer),
-    Layer.provide(Config.defaultLayer),
-    Layer.provide(Provider.defaultLayer),
-    Layer.provide(Plugin.defaultLayer),
-    Layer.provide(
-      LLMClient.layer.pipe(Layer.provide(Layer.mergeAll(RequestExecutor.defaultLayer, WebSocketExecutor.layer))),
-    ),
-    Layer.provide(RuntimeFlags.defaultLayer),
-  ),
-)
-
 export const hasToolCalls = LLMRequestPrep.hasToolCalls
 
 export const node = LayerNode.make({
   service: Service,
-  layer: layer,
+  layer: live,
   deps: [
     Auth.node,
     Config.node,

packages/opencode/src/session/processor.ts

@@ -78,7 +78,7 @@ type StreamEvent = LLMEvent
 
 export class Service extends Context.Service<Service, Interface>()("@opencode/SessionProcessor") {}
 
-export const layer = Layer.effect(
+const layer = Layer.effect(
   Service,
   Effect.gen(function* () {
     const session = yield* Session.Service
@@ -694,23 +694,6 @@ export const layer = Layer.effect(
   }),
 )
 
-export const defaultLayer = Layer.suspend(() =>
-  layer.pipe(
-    Layer.provide(Session.defaultLayer),
-    Layer.provide(Snapshot.defaultLayer),
-    Layer.provide(Agent.defaultLayer),
-    Layer.provide(LLM.defaultLayer),
-    Layer.provide(Permission.defaultLayer),
-    Layer.provide(Plugin.defaultLayer),
-    Layer.provide(SessionSummary.defaultLayer),
-    Layer.provide(SessionStatus.defaultLayer),
-    Layer.provide(Image.defaultLayer),
-    Layer.provide(Config.defaultLayer),
-    Layer.provide(Database.defaultLayer),
-    Layer.provide(EventV2Bridge.defaultLayer),
-  ),
-)
-
 export const node = LayerNode.make({
   service: Service,
   layer: layer,

packages/opencode/src/session/prompt.ts

@@ -110,7 +110,7 @@ export interface Interface {
 
 export class Service extends Context.Service<Service, Interface>()("@opencode/SessionPrompt") {}
 
-export const layer = Layer.effect(
+const layer = Layer.effect(
   Service,
   Effect.gen(function* () {
     const status = yield* SessionStatus.Service
@@ -1490,40 +1490,6 @@ export const layer = Layer.effect(
   }),
 )
 
-export const defaultLayer = Layer.suspend(() =>
-  layer.pipe(
-    Layer.provide(SessionRunState.defaultLayer),
-    Layer.provide(SessionStatus.defaultLayer),
-    Layer.provide(SessionCompaction.defaultLayer),
-    Layer.provide(SessionProcessor.defaultLayer),
-    Layer.provide(Command.defaultLayer),
-    Layer.provide(Permission.defaultLayer),
-    Layer.provide(MCP.defaultLayer),
-    Layer.provide(LSP.defaultLayer),
-    Layer.provide(ToolRegistry.defaultLayer),
-    Layer.provide(Truncate.defaultLayer),
-    Layer.provide(Provider.defaultLayer),
-    Layer.provide(Config.defaultLayer),
-    Layer.provide(Instruction.defaultLayer),
-    Layer.provide(FSUtil.defaultLayer),
-    Layer.provide(Plugin.defaultLayer),
-    Layer.provide(Session.defaultLayer),
-    Layer.provide(SessionRevert.defaultLayer),
-    Layer.provide(SessionSummary.defaultLayer),
-    Layer.provide(Image.defaultLayer),
-    Layer.provide(
-      Layer.mergeAll(
-        Agent.defaultLayer,
-        Database.defaultLayer,
-        SystemPrompt.defaultLayer,
-        LLM.defaultLayer,
-        CrossSpawnSpawner.defaultLayer,
-        RuntimeFlags.defaultLayer,
-        EventV2Bridge.defaultLayer,
-      ),
-    ),
-  ),
-)
 const ModelRef = Schema.Struct({
   providerID: ProviderV2.ID,
   modelID: ModelV2.ID,

packages/opencode/src/session/revert.ts

@@ -25,7 +25,7 @@ export interface Interface {
 
 export class Service extends Context.Service<Service, Interface>()("@opencode/SessionRevert") {}
 
-export const layer = Layer.effect(
+const layer = Layer.effect(
   Service,
   Effect.gen(function* () {
     const sessions = yield* Session.Service
@@ -137,17 +137,6 @@ export const layer = Layer.effect(
   }),
 )
 
-export const defaultLayer = Layer.suspend(() =>
-  layer.pipe(
-    Layer.provide(SessionRunState.defaultLayer),
-    Layer.provide(Session.defaultLayer),
-    Layer.provide(Snapshot.defaultLayer),
-    Layer.provide(Storage.defaultLayer),
-    Layer.provide(EventV2Bridge.defaultLayer),
-    Layer.provide(SessionSummary.defaultLayer),
-  ),
-)
-
 export const node = LayerNode.make({
   service: Service,
   layer: layer,

packages/opencode/src/session/run-state.ts

@@ -26,7 +26,7 @@ export interface Interface {
 
 export class Service extends Context.Service<Service, Interface>()("@opencode/SessionRunState") {}
 
-export const layer = Layer.effect(
+const layer = Layer.effect(
   Service,
   Effect.gen(function* () {
     const jobs = yield* Job.Service
@@ -108,8 +108,6 @@ export const layer = Layer.effect(
   }),
 )
 
-export const defaultLayer = layer.pipe(Layer.provide(Job.defaultLayer), Layer.provide(SessionStatus.defaultLayer))
-
 const cancelJobs = Effect.fn("SessionRunState.cancelJobs")(function* (jobs: Job.Interface, sessionID: SessionID) {
   const running = yield* jobs.list()
   const pending = new Set<string>([sessionID])

packages/opencode/src/session/session.ts

@@ -9,11 +9,8 @@ import { Decimal } from "decimal.js"
 import type { ProviderMetadata, Usage } from "@opencode-ai/llm"
 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 { SessionV2 } from "@opencode-ai/core/session"
-import * as SessionExecutionLocal from "@opencode-ai/core/session/execution/local"
-import { locationServiceMapLayer } from "@opencode-ai/core/location-services"
 
 import { NotFoundError } from "@/storage/storage"
 import { eq } from "drizzle-orm"
@@ -46,8 +43,6 @@ import { ProviderV2 } from "@opencode-ai/core/provider"
 import { ModelV2 } from "@opencode-ai/core/model"
 import { SessionMessage } from "@opencode-ai/schema/session-message"
 
-const runtime = makeRuntime(Database.Service, Database.defaultLayer)
-
 const parentTitlePrefix = "New session - "
 const childTitlePrefix = "Child session - "
 
@@ -488,7 +483,7 @@ export type Patch = Omit<Partial<Info>, "time" | "share" | "summary" | "revert"
   permission?: Info["permission"] | null
 }
 
-export const layer: Layer.Layer<
+const layer: Layer.Layer<
   Service,
   never,
   Job.Service | RuntimeFlags.Service | Database.Service | EventV2Bridge.Service
@@ -940,19 +935,6 @@ export const layer: Layer.Layer<
   }),
 )
 
-export const defaultLayer = layer.pipe(
-  Layer.provide(Job.defaultLayer),
-  Layer.provide(Database.defaultLayer),
-  Layer.provide(EventV2Bridge.defaultLayer),
-  Layer.provide(
-    SessionV2.defaultLayer.pipe(
-      Layer.provide(SessionExecutionLocal.defaultLayer),
-      Layer.provide(locationServiceMapLayer),
-    ),
-  ),
-  Layer.provide(RuntimeFlags.defaultLayer),
-)
-
 const cancelJobs = Effect.fn("Session.cancelJobs")(function* (jobs: Job.Interface, sessionID: SessionID) {
   const running = yield* jobs.list()
   yield* Effect.forEach(
@@ -1022,76 +1004,6 @@ function listByProject(
     )
 }
 
-export function* listGlobal(input?: {
-  directory?: string
-  roots?: boolean
-  start?: number
-  cursor?: number
-  search?: string
-  limit?: number
-  archived?: boolean
-}) {
-  const conditions: SQL[] = []
-
-  if (input?.directory) {
-    conditions.push(eq(SessionTable.directory, input.directory))
-  }
-  if (input?.roots) {
-    conditions.push(isNull(SessionTable.parent_id))
-  }
-  if (input?.start) {
-    conditions.push(gte(SessionTable.time_updated, input.start))
-  }
-  if (input?.cursor) {
-    conditions.push(lt(SessionTable.time_updated, input.cursor))
-  }
-  if (input?.search) {
-    conditions.push(like(SessionTable.title, `%${input.search}%`))
-  }
-  if (!input?.archived) {
-    conditions.push(isNull(SessionTable.time_archived))
-  }
-
-  const limit = input?.limit ?? 100
-
-  const rows = runtime.runSync(({ db }) => {
-    const query =
-      conditions.length > 0
-        ? db
-            .select()
-            .from(SessionTable)
-            .where(and(...conditions))
-        : db.select().from(SessionTable)
-    return query.orderBy(desc(SessionTable.time_updated), desc(SessionTable.id)).limit(limit).all().pipe(Effect.orDie)
-  })
-
-  const ids = [...new Set(rows.map((row) => row.project_id))]
-  const projects = new Map<string, ProjectInfo>()
-
-  if (ids.length > 0) {
-    const items = runtime.runSync(({ db }) =>
-      db
-        .select({ id: ProjectTable.id, name: ProjectTable.name, worktree: ProjectTable.worktree })
-        .from(ProjectTable)
-        .where(inArray(ProjectTable.id, ids))
-        .all()
-        .pipe(Effect.orDie),
-    )
-    for (const item of items) {
-      projects.set(item.id, {
-        id: item.id,
-        name: item.name ?? undefined,
-        worktree: item.worktree,
-      })
-    }
-  }
-
-  for (const row of rows) {
-    const project = projects.get(row.project_id) ?? null
-    yield { ...fromRow(row), project }
-  }
-}
-
 export const node = LayerNode.make({
   service: Service,
   layer: layer,

packages/opencode/src/session/status.ts

@@ -18,7 +18,7 @@ export interface Interface {
 
 export class Service extends Context.Service<Service, Interface>()("@opencode/SessionStatus") {}
 
-export const layer = Layer.effect(
+const layer = Layer.effect(
   Service,
   Effect.gen(function* () {
     const events = yield* EventV2Bridge.Service
@@ -51,8 +51,6 @@ export const layer = Layer.effect(
   }),
 )
 
-export const defaultLayer = layer.pipe(Layer.provide(EventV2Bridge.defaultLayer))
-
 export const node = LayerNode.make({ service: Service, layer: layer, deps: [EventV2Bridge.node] })
 
 export * as SessionStatus from "./status"

packages/opencode/src/session/summary.ts

@@ -71,7 +71,7 @@ export interface Interface {
 
 export class Service extends Context.Service<Service, Interface>()("@opencode/SessionSummary") {}
 
-export const layer = Layer.effect(
+const layer = Layer.effect(
   Service,
   Effect.gen(function* () {
     const sessions = yield* Session.Service
@@ -145,15 +145,6 @@ export const layer = Layer.effect(
   }),
 )
 
-export const defaultLayer = Layer.suspend(() =>
-  layer.pipe(
-    Layer.provide(Session.defaultLayer),
-    Layer.provide(Snapshot.defaultLayer),
-    Layer.provide(EventV2Bridge.defaultLayer),
-    Layer.provide(Config.defaultLayer),
-  ),
-)
-
 export const DiffInput = Schema.Struct({
   sessionID: SessionID,
   messageID: Schema.optional(MessageID),

packages/opencode/src/session/system.ts

@@ -47,7 +47,7 @@ export interface Interface {
 
 export class Service extends Context.Service<Service, Interface>()("@opencode/SystemPrompt") {}
 
-export const layer = Layer.effect(
+const layer = Layer.effect(
   Service,
   Effect.gen(function* () {
     const skill = yield* Skill.Service
@@ -128,12 +128,6 @@ export const layer = Layer.effect(
   }),
 )
 
-export const defaultLayer = layer.pipe(
-  Layer.provide(Skill.defaultLayer),
-  Layer.provide(MCP.defaultLayer),
-  Layer.provide(locationServiceMapLayer),
-)
-
 const locationServiceMapNode = LayerNode.make({
   service: LocationServiceMap.Service,
   layer: locationServiceMapLayer,

packages/opencode/src/session/todo.ts

@@ -20,7 +20,7 @@ export interface Interface {
 
 export class Service extends Context.Service<Service, Interface>()("@opencode/SessionTodo") {}
 
-export const layer = Layer.effect(
+const layer = Layer.effect(
   Service,
   Effect.gen(function* () {
     const events = yield* EventV2Bridge.Service
@@ -69,8 +69,6 @@ export const layer = Layer.effect(
   }),
 )
 
-export const defaultLayer = layer.pipe(Layer.provide(EventV2Bridge.defaultLayer), Layer.provide(Database.defaultLayer))
-
 export const node = LayerNode.make({ service: Service, layer: layer, deps: [EventV2Bridge.node, Database.node] })
 
 export * as Todo from "./todo"

packages/opencode/src/share/session.ts

@@ -14,7 +14,7 @@ export interface Interface {
 
 export class Service extends Context.Service<Service, Interface>()("@opencode/SessionShare") {}
 
-export const layer = Layer.effect(
+const layer = Layer.effect(
   Service,
   Effect.gen(function* () {
     const cfg = yield* Config.Service
@@ -49,13 +49,6 @@ export const layer = Layer.effect(
   }),
 )
 
-export const defaultLayer = layer.pipe(
-  Layer.provide(ShareNext.defaultLayer),
-  Layer.provide(Session.defaultLayer),
-  Layer.provide(Config.defaultLayer),
-  Layer.provide(RuntimeFlags.defaultLayer),
-)
-
 export const node = LayerNode.make({
   service: Service,
   layer: layer,

packages/opencode/src/share/share-next.ts

@@ -109,7 +109,7 @@ function key(item: Data) {
   }
 }
 
-export const layer = Layer.effect(
+const layer = Layer.effect(
   Service,
   Effect.gen(function* () {
     const account = yield* Account.Service
@@ -362,16 +362,6 @@ export const layer = Layer.effect(
   }),
 )
 
-export const defaultLayer = layer.pipe(
-  Layer.provide(EventV2Bridge.defaultLayer),
-  Layer.provide(Account.defaultLayer),
-  Layer.provide(Config.defaultLayer),
-  Layer.provide(Database.defaultLayer),
-  Layer.provide(FetchHttpClient.layer),
-  Layer.provide(Provider.defaultLayer),
-  Layer.provide(Session.defaultLayer),
-)
-
 export const node = LayerNode.make({
   service: Service,
   layer: layer,

packages/opencode/src/skill/discovery.ts

@@ -26,7 +26,7 @@ export interface Interface {
 
 export class Service extends Context.Service<Service, Interface>()("@opencode/SkillDiscovery") {}
 
-export const layer: Layer.Layer<Service, never, FSUtil.Service | Path.Path | HttpClient.HttpClient> = Layer.effect(
+const layer: Layer.Layer<Service, never, FSUtil.Service | Path.Path | HttpClient.HttpClient> = Layer.effect(
   Service,
   Effect.gen(function* () {
     const fs = yield* FSUtil.Service
@@ -135,12 +135,6 @@ export const layer: Layer.Layer<Service, never, FSUtil.Service | Path.Path | Htt
   }),
 )
 
-export const defaultLayer: Layer.Layer<Service> = layer.pipe(
-  Layer.provide(FetchHttpClient.layer),
-  Layer.provide(FSUtil.defaultLayer),
-  Layer.provide(NodePath.layer),
-)
-
 export const node = LayerNode.make({ service: Service, layer: layer, deps: [FSUtil.node, path, httpClient] })
 
 export * as Discovery from "./discovery"

packages/opencode/src/skill/index.ts

@@ -247,7 +247,7 @@ const loadSkills = Effect.fnUntraced(function* (
 
 export class Service extends Context.Service<Service, Interface>()("@opencode/Skill") {}
 
-export const layer = Layer.effect(
+const layer = Layer.effect(
   Service,
   Effect.gen(function* () {
     const discovery = yield* Discovery.Service
@@ -318,15 +318,6 @@ export const layer = Layer.effect(
   }),
 )
 
-export const defaultLayer = layer.pipe(
-  Layer.provide(Discovery.defaultLayer),
-  Layer.provide(Config.defaultLayer),
-  Layer.provide(EventV2Bridge.defaultLayer),
-  Layer.provide(FSUtil.defaultLayer),
-  Layer.provide(Global.layer),
-  Layer.provide(RuntimeFlags.defaultLayer),
-)
-
 export function fmt(list: Info[], opts: { verbose: boolean }) {
   const described = list.filter((skill) => skill.description !== undefined)
   if (described.length === 0) return "No skills are currently available."

packages/opencode/src/snapshot/index.ts

@@ -46,7 +46,7 @@ export interface Interface {
 
 export class Service extends Context.Service<Service, Interface>()("@opencode/Snapshot") {}
 
-export const layer: Layer.Layer<Service, never, FSUtil.Service | AppProcess.Service | Config.Service> = Layer.effect(
+const layer: Layer.Layer<Service, never, FSUtil.Service | AppProcess.Service | Config.Service> = Layer.effect(
   Service,
   Effect.gen(function* () {
     const fs = yield* FSUtil.Service
@@ -798,12 +798,6 @@ export const layer: Layer.Layer<Service, never, FSUtil.Service | AppProcess.Serv
   }),
 )
 
-export const defaultLayer = layer.pipe(
-  Layer.provide(AppProcess.defaultLayer),
-  Layer.provide(FSUtil.defaultLayer),
-  Layer.provide(Config.defaultLayer),
-)
-
 export const node = LayerNode.make({
   service: Service,
   layer: layer,

packages/opencode/src/storage/storage.ts

@@ -210,7 +210,7 @@ const MIGRATIONS: Migration[] = [
   }),
 ]
 
-export const layer = Layer.effect(
+const layer = Layer.effect(
   Service,
   Effect.gen(function* () {
     const fs = yield* FSUtil.Service
@@ -322,8 +322,6 @@ export const layer = Layer.effect(
   }),
 )
 
-export const defaultLayer = layer.pipe(Layer.provide(FSUtil.defaultLayer), Layer.provide(Git.defaultLayer))
-
 export const node = LayerNode.make({ service: Service, layer: layer, deps: [FSUtil.node, Git.node] })
 
 export * as Storage from "./storage"

packages/opencode/src/tool/registry.ts

@@ -33,7 +33,6 @@ import { Glob } from "@opencode-ai/core/util/glob"
 import path from "path"
 import { pathToFileURL } from "url"
 import { Effect, Layer, Context } from "effect"
-import { FetchHttpClient, HttpClient } from "effect/unstable/http"
 import { ChildProcessSpawner } from "effect/unstable/process/ChildProcessSpawner"
 import { CrossSpawnSpawner } from "@opencode-ai/core/cross-spawn-spawner"
 import { Format } from "../format"
@@ -80,7 +79,7 @@ export interface Interface {
 
 export class Service extends Context.Service<Service, Interface>()("@opencode/ToolRegistry") {}
 
-export const layer = Layer.effect(
+const layer = Layer.effect(
   Service,
   Effect.gen(function* () {
     const config = yield* Config.Service
@@ -315,30 +314,6 @@ export const layer = Layer.effect(
   }),
 )
 
-export const defaultLayer = Layer.suspend(() =>
-  layer
-    .pipe(
-      Layer.provide(Config.defaultLayer),
-      Layer.provide(Plugin.defaultLayer),
-      Layer.provide(Question.defaultLayer),
-      Layer.provide(Todo.defaultLayer),
-      Layer.provide(Skill.defaultLayer),
-      Layer.provide(Agent.defaultLayer),
-      Layer.provide(Session.defaultLayer),
-      Layer.provide(Job.defaultLayer),
-      Layer.provide(Provider.defaultLayer),
-      Layer.provide(LSP.defaultLayer),
-      Layer.provide(Instruction.defaultLayer),
-      Layer.provide(FSUtil.defaultLayer),
-      Layer.provide(EventV2Bridge.defaultLayer),
-      Layer.provide(FetchHttpClient.layer),
-      Layer.provide(Format.defaultLayer),
-      Layer.provide(CrossSpawnSpawner.defaultLayer),
-      Layer.provide(Truncate.defaultLayer),
-    )
-    .pipe(Layer.provide(Database.defaultLayer), Layer.provide(RuntimeFlags.defaultLayer)),
-)
-
 function isZodType(value: unknown): value is z.ZodType {
   return typeof value === "object" && value !== null && "_zod" in value
 }
@@ -417,7 +392,7 @@ function isJsonSchemaObject(value: unknown): value is Record<string, unknown> {
 
 export const node = LayerNode.make({
   service: Service,
-  layer: layer.pipe(Layer.provide(Ripgrep.defaultLayer)),
+  layer,
   deps: [
     Config.node,
     Plugin.node,
@@ -438,6 +413,7 @@ export const node = LayerNode.make({
     Truncate.node,
     RuntimeFlags.node,
     Database.node,
+    Ripgrep.node,
   ],
 })
 

packages/opencode/src/tool/truncate.ts

@@ -46,7 +46,7 @@ export interface Interface {
 
 export class Service extends Context.Service<Service, Interface>()("@opencode/Truncate") {}
 
-export const layer = Layer.effect(
+const layer = Layer.effect(
   Service,
   Effect.gen(function* () {
     const fs = yield* FSUtil.Service
@@ -151,8 +151,6 @@ export const layer = Layer.effect(
   }),
 )
 
-export const defaultLayer = layer.pipe(Layer.provide(FSUtil.defaultLayer), Layer.provide(NodePath.layer))
-
 export const node = LayerNode.make({ service: Service, layer: layer, deps: [FSUtil.node] })
 
 export * as Truncate from "./truncate"

packages/opencode/src/worktree/index.ts

@@ -1,7 +1,6 @@
 import { LayerNode } from "@opencode-ai/core/effect/layer-node"
 import { path } from "@opencode-ai/core/effect/app-node-platform"
 import { Global } from "@opencode-ai/core/global"
-import { InstanceLayer } from "@/project/instance-layer"
 import { InstanceStore } from "@/project/instance-store"
 import { Project } from "@/project/project"
 import { Database } from "@opencode-ai/core/database/database"
@@ -14,7 +13,6 @@ import { GlobalBus } from "@/bus/global"
 import { Git } from "@/git"
 import { Effect, Layer, Path, Schema, Scope, Context } from "effect"
 import { ChildProcess } from "effect/unstable/process"
-import { NodePath } from "@effect/platform-node"
 import { FSUtil } from "@opencode-ai/core/fs-util"
 import { AppProcess } from "@opencode-ai/core/process"
 import { InstanceState } from "@/effect/instance-state"
@@ -131,7 +129,7 @@ export class Service extends Context.Service<Service, Interface>()("@opencode/Wo
 
 type GitResult = { code: number; text: string; stderr: string }
 
-export const layer: Layer.Layer<
+const layer: Layer.Layer<
   Service,
   never,
   | FSUtil.Service
@@ -616,17 +614,6 @@ export const layer: Layer.Layer<
   }),
 )
 
-export const appLayer = layer.pipe(
-  Layer.provide(Git.defaultLayer),
-  Layer.provide(AppProcess.defaultLayer),
-  Layer.provide(Project.defaultLayer),
-  Layer.provide(Database.defaultLayer),
-  Layer.provide(FSUtil.defaultLayer),
-  Layer.provide(NodePath.layer),
-)
-
-export const defaultLayer = appLayer.pipe(Layer.provide(InstanceLayer.layer))
-
 export const node = LayerNode.make({
   service: Service,
   layer: layer,

packages/opencode/test/account/repo.test.ts

@@ -1,4 +1,5 @@
 import { expect } from "bun:test"
+import { LayerNode } from "@opencode-ai/core/effect/layer-node"
 import { Effect, Layer, Option } from "effect"
 import { sql } from "drizzle-orm"
 
@@ -13,9 +14,10 @@ const truncate = Layer.effectDiscard(
     yield* db.run(sql`DELETE FROM account_state`)
     yield* db.run(sql`DELETE FROM account`)
   }),
-).pipe(Layer.provide(Database.defaultLayer))
+)
+const truncateNode = LayerNode.make({ name: "truncate-account", layer: truncate, deps: [Database.node] })
 
-const it = testEffect(Layer.merge(AccountRepo.defaultLayer, truncate))
+const it = testEffect(LayerNode.compile(LayerNode.group([AccountRepo.node, truncateNode])))
 
 it.live("list returns empty when no accounts exist", () =>
   Effect.gen(function* () {

packages/opencode/test/account/service.test.ts

@@ -1,4 +1,6 @@
 import { expect } from "bun:test"
+import { LayerNode } from "@opencode-ai/core/effect/layer-node"
+import { httpClient } from "@opencode-ai/core/effect/app-node-platform"
 import { Duration, Effect, Layer, Option, Schema } from "effect"
 import { sql } from "drizzle-orm"
 import { HttpClient, HttpClientError, HttpClientResponse } from "effect/unstable/http"
@@ -25,15 +27,16 @@ const truncate = Layer.effectDiscard(
     yield* db.run(sql`DELETE FROM account_state`)
     yield* db.run(sql`DELETE FROM account`)
   }),
-).pipe(Layer.provide(Database.defaultLayer))
+)
+const truncateNode = LayerNode.make({ name: "truncate-account", layer: truncate, deps: [Database.node] })
 
-const it = testEffect(Layer.merge(AccountRepo.defaultLayer, truncate))
+const it = testEffect(LayerNode.compile(LayerNode.group([AccountRepo.node, truncateNode])))
 
 const insideEagerRefreshWindow = Duration.toMillis(Duration.minutes(1))
 const outsideEagerRefreshWindow = Duration.toMillis(Duration.minutes(10))
 
 const live = (client: HttpClient.HttpClient) =>
-  Account.layer.pipe(Layer.provide(Layer.succeed(HttpClient.HttpClient, client)))
+  LayerNode.compile(Account.node, [[httpClient, Layer.succeed(HttpClient.HttpClient, client)]])
 
 const json = (req: Parameters<typeof HttpClientResponse.fromWeb>[0], body: unknown, status = 200) =>
   HttpClientResponse.fromWeb(

packages/opencode/test/acp/directory.test.ts

@@ -1,6 +1,7 @@
 import { describe, expect } from "bun:test"
 import { Directory } from "@/acp/directory"
 import { Command } from "@/command"
+import { LayerNode } from "@opencode-ai/core/effect/layer-node"
 import { ProviderV2 } from "@opencode-ai/core/provider"
 import { ModelV2 } from "@opencode-ai/core/model"
 import { Provider } from "@/provider/provider"
@@ -83,8 +84,9 @@ const snapshot = (directory: string) => {
 }
 
 const fakeLayer = (calls: string[]) =>
-  Directory.layer.pipe(
-    Layer.provide(
+  LayerNode.compile(Directory.node, [
+    [
+      Directory.loaderNode,
       Layer.succeed(
         Directory.Loader,
         Directory.Loader.of({
@@ -95,8 +97,8 @@ const fakeLayer = (calls: string[]) =>
             }),
         }),
       ),
-    ),
-  )
+    ],
+  ])
 
 describe("ACP directory snapshot", () => {
   it.effect("two concurrent callers share one load", () => {

packages/opencode/test/acp/event.test.ts

@@ -1,5 +1,6 @@
 import { describe, expect, it } from "bun:test"
 import type { AgentSideConnection } from "@agentclientprotocol/sdk"
+import { LayerNode } from "@opencode-ai/core/effect/layer-node"
 import type { Event, Message, OpencodeClient, Part, SessionMessageResponse, ToolPart } from "@opencode-ai/sdk/v2"
 import { Effect, ManagedRuntime } from "effect"
 import { ACPEvent } from "@/acp/event"
@@ -30,7 +31,7 @@ const pollUntil = async (
 }
 
 function makeSessionService() {
-  return ManagedRuntime.make(ACPSession.defaultLayer).runSync(
+  return ManagedRuntime.make(LayerNode.compile(ACPSession.node)).runSync(
     ACPSession.Service.use((service) => Effect.succeed(service)),
   )
 }

packages/opencode/test/acp/permission.test.ts

@@ -6,6 +6,7 @@ import type {
   SessionUpdate,
 } from "@agentclientprotocol/sdk"
 import type { Event, OpencodeClient } from "@opencode-ai/sdk/v2"
+import { LayerNode } from "@opencode-ai/core/effect/layer-node"
 import { createTwoFilesPatch } from "diff"
 import { Effect, ManagedRuntime } from "effect"
 import { mkdtemp, rm } from "node:fs/promises"
@@ -37,7 +38,7 @@ const pollUntil = async (
 }
 
 function makeSessionService() {
-  return ManagedRuntime.make(ACPSession.defaultLayer).runSync(
+  return ManagedRuntime.make(LayerNode.compile(ACPSession.node)).runSync(
     ACPSession.Service.use((service) => Effect.succeed(service)),
   )
 }

packages/opencode/test/acp/session.test.ts

@@ -1,5 +1,6 @@
 import { describe, expect } from "bun:test"
 import type { McpServer } from "@agentclientprotocol/sdk"
+import { LayerNode } from "@opencode-ai/core/effect/layer-node"
 import { Effect } from "effect"
 import { ProviderV2 } from "@opencode-ai/core/provider"
 import { ModelV2 } from "@opencode-ai/core/model"
@@ -7,7 +8,7 @@ import * as ACPError from "@/acp/error"
 import * as ACPSession from "@/acp/session"
 import { testEffect } from "../lib/effect"
 
-const sessionTest = testEffect(ACPSession.defaultLayer)
+const sessionTest = testEffect(LayerNode.compile(ACPSession.node))
 
 const model = (providerID: string, modelID: string): ACPSession.SelectedModel => ({
   providerID: ProviderV2.ID.make(providerID),

packages/opencode/test/acp/usage.test.ts

@@ -1,5 +1,6 @@
 import { describe, expect, test } from "bun:test"
 import type { SessionNotification } from "@agentclientprotocol/sdk"
+import { LayerNode } from "@opencode-ai/core/effect/layer-node"
 import { ProviderV2 } from "@opencode-ai/core/provider"
 import { ModelV2 } from "@opencode-ai/core/model"
 import { UsageService } from "@/acp/usage"
@@ -97,24 +98,26 @@ const fakeLayer = (input: {
   readonly messages?: Effect.Effect<readonly UsageService.SessionMessage[], unknown>
   readonly providers?: (directory: string) => Effect.Effect<Record<ProviderV2.ID, Provider.Info>, unknown>
 }) =>
-  UsageService.layer.pipe(
-    Layer.provide(
-      Layer.mergeAll(
-        Layer.succeed(
-          UsageService.MessageLoader,
-          UsageService.MessageLoader.of({
-            messages: () => input.messages ?? Effect.succeed([]),
-          }),
-        ),
-        Layer.succeed(
-          UsageService.ContextLimitLoader,
-          UsageService.ContextLimitLoader.of({
-            providers: input.providers ?? (() => Effect.succeed(providers())),
-          }),
-        ),
+  LayerNode.compile(UsageService.node, [
+    [
+      UsageService.messageLoaderNode,
+      Layer.succeed(
+        UsageService.MessageLoader,
+        UsageService.MessageLoader.of({
+          messages: () => input.messages ?? Effect.succeed([]),
+        }),
       ),
-    ),
-  )
+    ],
+    [
+      UsageService.contextLimitLoaderNode,
+      Layer.succeed(
+        UsageService.ContextLimitLoader,
+        UsageService.ContextLimitLoader.of({
+          providers: input.providers ?? (() => Effect.succeed(providers())),
+        }),
+      ),
+    ],
+  ])
 
 const connection = (updates: SessionNotification[]) => ({
   sessionUpdate(params: SessionNotification) {

packages/opencode/test/agent/agent.test.ts

@@ -1,4 +1,5 @@
 import { afterEach, expect } from "bun:test"
+import { LayerNode } from "@opencode-ai/core/effect/layer-node"
 import { Cause, Effect, Exit, Layer } from "effect"
 import path from "path"
 import { disposeAllInstances, TestInstance } from "../fixture/fixture"
@@ -14,17 +15,11 @@ import { Plugin } from "../../src/plugin"
 import { Provider } from "../../src/provider/provider"
 import { Skill } from "../../src/skill"
 import { Truncate } from "../../src/tool/truncate"
-import { LocationServiceMap, locationServiceMapLayer } from "@opencode-ai/core/location-services"
 
 const agentLayer = (flags: Partial<RuntimeFlags.Info> = {}) =>
-  Agent.layer.pipe(
-    Layer.provide(Plugin.defaultLayer),
-    Layer.provide(Provider.defaultLayer),
-    Layer.provide(Auth.defaultLayer),
-    Layer.provide(Config.defaultLayer),
-    Layer.provide(Skill.defaultLayer),
-    Layer.provide(locationServiceMapLayer),
-    Layer.provide(RuntimeFlags.layer(flags)),
+  LayerNode.compile(
+    LayerNode.group([Agent.node, Plugin.node, Provider.node, Auth.node, Config.node, Skill.node, RuntimeFlags.node]),
+    [[RuntimeFlags.node, RuntimeFlags.layer(flags)]],
   )
 
 const it = testEffect(agentLayer())

packages/opencode/test/agent/plan-mode-subagent-bypass.test.ts

@@ -1,4 +1,5 @@
 import { PermissionV1 } from "@opencode-ai/core/v1/permission"
+import { LayerNode } from "@opencode-ai/core/effect/layer-node"
 import { expect } from "bun:test"
 import { Effect } from "effect"
 import { Agent } from "../../src/agent/agent"
@@ -6,7 +7,7 @@ import { deriveSubagentSessionPermission } from "../../src/agent/subagent-permis
 import { Permission } from "../../src/permission"
 import { testEffect } from "../lib/effect"
 
-const it = testEffect(Agent.defaultLayer)
+const it = testEffect(LayerNode.compile(Agent.node))
 
 function testAgent(input: {
   name: string

packages/opencode/test/agent/plugin-agent-regression.test.ts

@@ -1,16 +1,15 @@
 import { expect } from "bun:test"
-import { FSUtil } from "@opencode-ai/core/fs-util"
-import { LocationServiceMap, locationServiceMapLayer } from "@opencode-ai/core/location-services"
-import { Effect, Layer } from "effect"
-import { FetchHttpClient } from "effect/unstable/http"
+import { Npm } from "@opencode-ai/core/npm"
+import { Effect } from "effect"
 import path from "path"
 import { pathToFileURL } from "url"
 import { Agent } from "../../src/agent/agent"
-import { EventV2Bridge } from "../../src/event-v2-bridge"
-import { Config } from "../../src/config/config"
-import { Env } from "../../src/env"
+import { Account } from "../../src/account/account"
+import { Auth } from "../../src/auth"
 import { RuntimeFlags } from "../../src/effect/runtime-flags"
 import { Plugin } from "../../src/plugin"
+import { Provider } from "../../src/provider/provider"
+import { Skill } from "../../src/skill"
 import { AccountTest } from "../fake/account"
 import { AuthTest } from "../fake/auth"
 import { NpmTest } from "../fake/npm"
@@ -18,6 +17,8 @@ import { ProviderTest } from "../fake/provider"
 import { SkillTest } from "../fake/skill"
 import { testEffect } from "../lib/effect"
 import { PLUGIN_AGENT } from "../fixture/agent-plugin.constants"
+import { AppNodeBuilder } from "@opencode-ai/core/effect/app-node-builder"
+import { LayerNode } from "@opencode-ai/core/effect/layer-node"
 
 // `it.instance` skips InstanceBootstrap so LSP / MCP don't spin up — those
 // services hang during scope teardown on Windows and aren't needed
@@ -25,30 +26,16 @@ 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 configLayer = Config.layer.pipe(
-  Layer.provide(FSUtil.defaultLayer),
-  Layer.provide(Env.defaultLayer),
-  Layer.provide(AuthTest.empty),
-  Layer.provide(AccountTest.empty),
-  Layer.provide(NpmTest.noop),
-  Layer.provide(FetchHttpClient.layer),
+const it = testEffect(
+  AppNodeBuilder.build(LayerNode.group([Agent.node, Plugin.node]), [
+    [Auth.node, AuthTest.empty],
+    [Account.node, AccountTest.empty],
+    [Npm.node, NpmTest.noop],
+    [Provider.node, provider.layer],
+    [Skill.node, SkillTest.empty],
+    [RuntimeFlags.node, RuntimeFlags.layer({ disableDefaultPlugins: true })],
+  ]),
 )
-const pluginLayer = Plugin.layer.pipe(
-  Layer.provide(EventV2Bridge.defaultLayer),
-  Layer.provide(configLayer),
-  Layer.provide(RuntimeFlags.layer({ disableDefaultPlugins: true })),
-)
-const agentLayer = Agent.layer.pipe(
-  Layer.provide(configLayer),
-  Layer.provide(AuthTest.empty),
-  Layer.provide(SkillTest.empty),
-  Layer.provide(provider.layer),
-  Layer.provide(pluginLayer),
-  Layer.provide(locationServiceMapLayer),
-  Layer.provide(RuntimeFlags.layer({ disableDefaultPlugins: true })),
-)
-
-const it = testEffect(Layer.mergeAll(agentLayer, pluginLayer))
 
 it.instance(
   "plugin-registered agents appear in Agent.list",

packages/opencode/test/auth/auth.test.ts

@@ -1,12 +1,10 @@
 import { describe, expect } from "bun:test"
-import { Effect, Layer } from "effect"
+import { LayerNode } from "@opencode-ai/core/effect/layer-node"
+import { Effect } from "effect"
 import { Auth } from "../../src/auth"
-import { CrossSpawnSpawner } from "@opencode-ai/core/cross-spawn-spawner"
 import { testEffect } from "../lib/effect"
 
-const node = CrossSpawnSpawner.defaultLayer
-
-const it = testEffect(Layer.mergeAll(Auth.defaultLayer, node))
+const it = testEffect(LayerNode.compile(Auth.node))
 
 describe("Auth", () => {
   it.instance("set normalizes trailing slashes in keys", () =>

packages/opencode/test/cli/effect-cmd-instance-als.test.ts

@@ -1,4 +1,5 @@
 import { afterEach, expect } from "bun:test"
+import { LayerNode } from "@opencode-ai/core/effect/layer-node"
 import { FSUtil } from "@opencode-ai/core/fs-util"
 import { Effect } from "effect"
 import { fileURLToPath } from "url"
@@ -6,7 +7,7 @@ import { InstanceRef } from "../../src/effect/instance-ref"
 import { disposeAllInstances, TestInstance } from "../fixture/fixture"
 import { testEffect } from "../lib/effect"
 
-const it = testEffect(FSUtil.defaultLayer)
+const it = testEffect(LayerNode.compile(FSUtil.node))
 
 afterEach(async () => {
   await disposeAllInstances()

packages/opencode/test/cli/help/__snapshots__/help-snapshots.test.ts.snap

@@ -76,39 +76,35 @@ Positionals:
   message  message to send                                                     [array] [default: []]
 
 Options:
-  -h, --help                          show help                                            [boolean]
-  -v, --version                       show version number                                  [boolean]
-      --print-logs                    print logs to stderr                                 [boolean]
-      --log-level                     log level [string] [choices: "DEBUG", "INFO", "WARN", "ERROR"]
-      --pure                          run without external plugins                         [boolean]
-      --command                       the command to run, use message for args              [string]
-  -c, --continue                      continue the last session                            [boolean]
-  -s, --session                       session id to continue                                [string]
-      --fork                          fork the session before continuing (requires --continue or
-                                      --session)                                           [boolean]
-      --share                         share the session                                    [boolean]
-  -m, --model                         model to use in the format of provider/model          [string]
-      --agent                         agent to use                                          [string]
-      --format                        format: default (formatted) or json (raw JSON events)
+  -h, --help         show help                                                             [boolean]
+  -v, --version      show version number                                                   [boolean]
+      --print-logs   print logs to stderr                                                  [boolean]
+      --log-level    log level                  [string] [choices: "DEBUG", "INFO", "WARN", "ERROR"]
+      --pure         run without external plugins                                          [boolean]
+      --command      the command to run, use message for args                               [string]
+  -c, --continue     continue the last session                                             [boolean]
+  -s, --session      session id to continue                                                 [string]
+      --fork         fork the session before continuing (requires --continue or --session) [boolean]
+      --share        share the session                                                     [boolean]
+  -m, --model        model to use in the format of provider/model                           [string]
+      --agent        agent to use                                                           [string]
+      --format       format: default (formatted) or json (raw JSON events)
                                           [string] [choices: "default", "json"] [default: "default"]
-  -f, --file                          file(s) to attach to message                           [array]
-      --title                         title for the session (uses truncated prompt if no value
-                                      provided)                                             [string]
-      --attach                        attach to a running opencode server (e.g.,
-                                      http://localhost:4096)                                [string]
-  -p, --password                      basic auth password (defaults to OPENCODE_SERVER_PASSWORD)
+  -f, --file         file(s) to attach to message                                            [array]
+      --title        title for the session (uses truncated prompt if no value provided)     [string]
+      --attach       attach to a running opencode server (e.g., http://localhost:4096)      [string]
+  -p, --password     basic auth password (defaults to OPENCODE_SERVER_PASSWORD)             [string]
+  -u, --username     basic auth username (defaults to OPENCODE_SERVER_USERNAME or 'opencode')
                                                                                             [string]
-  -u, --username                      basic auth username (defaults to OPENCODE_SERVER_USERNAME or
-                                      'opencode')                                           [string]
-      --dir                           directory to run in, path on remote server if attaching
+      --dir          directory to run in, path on remote server if attaching                [string]
+      --port         port for the local server (defaults to random port if no value provided)
+                                                                                            [number]
+      --variant      model variant (provider-specific reasoning effort, e.g., high, max, minimal)
                                                                                             [string]
-      --port                          port for the local server (defaults to random port if no value
-                                      provided)                                             [number]
-      --variant                       model variant (provider-specific reasoning effort, e.g., high,
-                                      max, minimal)                                         [string]
-      --thinking                      show thinking blocks                                 [boolean]
-      --dangerously-skip-permissions  auto-approve permissions that are not explicitly denied
-                                      (dangerous!)                        [boolean] [default: false]"
+      --thinking     show thinking blocks                                                  [boolean]
+  -i, --interactive  run in direct interactive split-footer mode          [boolean] [default: false]
+      --auto         auto-approve permissions that are not explicitly denied (dangerous!)
+                                                                          [boolean] [default: false]"
 `;
 
 exports[`opencode CLI help-text snapshots every documented command emits stable help text: opencode debug --help 1`] = `

packages/opencode/test/cli/run/variant.shared.test.ts

@@ -1,5 +1,6 @@
 import path from "path"
 import { NodeFileSystem } from "@effect/platform-node"
+import { LayerNode } from "@opencode-ai/core/effect/layer-node"
 import { FSUtil } from "@opencode-ai/core/fs-util"
 import { describe, expect, test } from "bun:test"
 import { Effect, FileSystem, Layer } from "effect"
@@ -98,7 +99,7 @@ function userMessage(
   }
 }
 
-const it = testEffect(Layer.mergeAll(FSUtil.defaultLayer, NodeFileSystem.layer))
+const it = testEffect(Layer.mergeAll(LayerNode.compile(FSUtil.node), NodeFileSystem.layer))
 
 function remap(root: string, file: string) {
   if (file === Global.Path.state) {
@@ -123,7 +124,7 @@ function remappedFs(root: string) {
         writeJson: (file, data, mode) => fs.writeJson(remap(root, file), data, mode),
       })
     }),
-  ).pipe(Layer.provide(FSUtil.defaultLayer))
+  ).pipe(Layer.provide(LayerNode.compile(FSUtil.node)))
 }
 
 describe("run variant shared", () => {

packages/opencode/test/config/agent-color.test.ts

@@ -1,11 +1,11 @@
 import { expect } from "bun:test"
-import { Effect, Layer } from "effect"
-import { CrossSpawnSpawner } from "@opencode-ai/core/cross-spawn-spawner"
+import { LayerNode } from "@opencode-ai/core/effect/layer-node"
+import { Effect } from "effect"
 import { Config } from "@/config/config"
 import { Agent as AgentSvc } from "../../src/agent/agent"
 import { testEffect } from "../lib/effect"
 
-const it = testEffect(Layer.mergeAll(Config.defaultLayer, AgentSvc.defaultLayer, CrossSpawnSpawner.defaultLayer))
+const it = testEffect(LayerNode.compile(LayerNode.group([Config.node, AgentSvc.node])))
 
 it.instance(
   "agent color parsed from project config",

packages/opencode/test/config/config.test.ts

@@ -1,13 +1,14 @@
 import { test, expect, describe, afterEach, beforeEach, spyOn } from "bun:test"
 import { ConfigV1 } from "@opencode-ai/core/v1/config/config"
+import { LayerNode } from "@opencode-ai/core/effect/layer-node"
+import { httpClient } from "@opencode-ai/core/effect/app-node-platform"
 import { Cause, Effect, Exit, Layer, Option } from "effect"
 import { NamedError } from "@opencode-ai/core/util/error"
 import { FetchHttpClient, HttpClient, HttpClientResponse } from "effect/unstable/http"
-import { NodeFileSystem, NodePath } from "@effect/platform-node"
 import { Config } from "@/config/config"
 import { ConfigManaged } from "@/config/managed"
 import { ConfigParse } from "../../src/config/parse"
-import { EffectFlock } from "@opencode-ai/core/util/effect-flock"
+import { Npm } from "@opencode-ai/core/npm"
 
 import { InstanceRef } from "../../src/effect/instance-ref"
 import type { InstanceContext } from "../../src/project/instance-context"
@@ -41,13 +42,6 @@ import { AccountTest } from "../fake/account"
 import { AuthTest } from "../fake/auth"
 import { NpmTest } from "../fake/npm"
 
-/** Infra layer that provides FileSystem, Path, ChildProcessSpawner for test fixtures */
-const infra = CrossSpawnSpawner.defaultLayer.pipe(
-  Layer.provideMerge(Layer.mergeAll(NodeFileSystem.layer, NodePath.layer)),
-)
-
-const testFlock = EffectFlock.defaultLayer
-
 const unexpectedHttp = HttpClient.make((request) =>
   Effect.die(`unexpected http request: ${request.method} ${request.url}`),
 )
@@ -104,16 +98,12 @@ const configLayer = (
     client?: HttpClient.HttpClient
   } = {},
 ) =>
-  Config.layer.pipe(
-    Layer.provide(testFlock),
-    Layer.provide(Env.defaultLayer),
-    Layer.provide(options.auth ?? AuthTest.empty),
-    Layer.provide(options.account ?? AccountTest.empty),
-    Layer.provideMerge(infra),
-    Layer.provide(NpmTest.noop),
-    Layer.provide(Layer.succeed(HttpClient.HttpClient, options.client ?? unexpectedHttp)),
-    Layer.provideMerge(FSUtil.defaultLayer),
-  )
+  LayerNode.compile(LayerNode.group([Config.node, FSUtil.node, Env.node, CrossSpawnSpawner.node]), [
+    [Auth.node, options.auth ?? AuthTest.empty],
+    [Account.node, options.account ?? AccountTest.empty],
+    [Npm.node, NpmTest.noop],
+    [httpClient, Layer.succeed(HttpClient.HttpClient, options.client ?? unexpectedHttp)],
+  ])
 
 const layer = configLayer()
 
@@ -171,7 +161,7 @@ const withInstanceDir = <A, E, R>(dir: string, effect: Effect.Effect<A, E, R>) =
     Effect.provideService(TestInstance, { directory: dir }),
     provideInstanceEffect(dir),
     Effect.provide(testInstanceStoreLayer),
-    Effect.provide(CrossSpawnSpawner.defaultLayer),
+    Effect.provide(LayerNode.compile(CrossSpawnSpawner.node)),
   )
 
 const withGlobalConfigDir = <A, E, R>(dir: string, effect: Effect.Effect<A, E, R>) =>
@@ -325,7 +315,7 @@ it.effect("creates global jsonc config with schema when no global configs exist"
 
       const content = yield* FSUtil.use.readFileString(path.join(dir, "opencode.jsonc"))
       expect(content).toContain('"$schema": "https://opencode.ai/config.json"')
-    }).pipe(Effect.provide(testInstanceStoreLayer), Effect.provide(CrossSpawnSpawner.defaultLayer)),
+    }).pipe(Effect.provide(testInstanceStoreLayer), Effect.provide(LayerNode.compile(CrossSpawnSpawner.node))),
   ),
 )
 
@@ -340,7 +330,7 @@ it.effect("does not create global config when OPENCODE_CONFIG_DIR is set", () =>
           yield* Config.use.get().pipe(provideInstanceEffect(dir))
 
           expect(yield* FSUtil.use.existsSafe(path.join(dir, "opencode.jsonc"))).toBe(false)
-        }).pipe(Effect.provide(testInstanceStoreLayer), Effect.provide(CrossSpawnSpawner.defaultLayer)),
+        }).pipe(Effect.provide(testInstanceStoreLayer), Effect.provide(LayerNode.compile(CrossSpawnSpawner.node))),
       ),
     )
   }),
@@ -930,7 +920,7 @@ it.effect("does not try to install dependencies in read-only OPENCODE_CONFIG_DIR
     yield* Effect.addFinalizer(() => FSUtil.use.chmod(readonly, 0o755).pipe(Effect.ignore))
 
     yield* withProcessEnv("OPENCODE_CONFIG_DIR", readonly, Config.use.get().pipe(provideInstanceEffect(dir)))
-  }).pipe(Effect.provide(testInstanceStoreLayer), Effect.provide(CrossSpawnSpawner.defaultLayer)),
+  }).pipe(Effect.provide(testInstanceStoreLayer), Effect.provide(LayerNode.compile(CrossSpawnSpawner.node))),
 )
 
 it.effect("installs dependencies in writable OPENCODE_CONFIG_DIR", () =>
@@ -948,7 +938,7 @@ it.effect("installs dependencies in writable OPENCODE_CONFIG_DIR", () =>
     )
 
     expect(yield* FSUtil.use.readFileString(path.join(configDir, ".gitignore"))).toContain("package-lock.json")
-  }).pipe(Effect.provide(testInstanceStoreLayer), Effect.provide(CrossSpawnSpawner.defaultLayer)),
+  }).pipe(Effect.provide(testInstanceStoreLayer), Effect.provide(LayerNode.compile(CrossSpawnSpawner.node))),
 )
 
 // Note: deduplication and serialization of npm installs is now handled by the
@@ -1533,16 +1523,12 @@ test("remote well-known config can use FetchHttpClient layer", async () => {
       Effect.scoped,
       Effect.provide(
         Layer.mergeAll(
-          Config.layer.pipe(
-            Layer.provide(testFlock),
-            Layer.provide(FSUtil.defaultLayer),
-            Layer.provide(Env.defaultLayer),
-            Layer.provide(wellKnownAuth(server.url.origin)),
-            Layer.provide(AccountTest.empty),
-            Layer.provideMerge(infra),
-            Layer.provide(NpmTest.noop),
-            Layer.provide(FetchHttpClient.layer),
-          ),
+          LayerNode.compile(LayerNode.group([Config.node, FSUtil.node, Env.node, CrossSpawnSpawner.node]), [
+            [Auth.node, wellKnownAuth(server.url.origin)],
+            [Account.node, AccountTest.empty],
+            [Npm.node, NpmTest.noop],
+            [httpClient, FetchHttpClient.layer],
+          ]),
           testInstanceStoreLayer,
         ),
       ),

packages/opencode/test/config/tui.test.ts

@@ -1,6 +1,8 @@
 import { expect } from "bun:test"
 import path from "path"
 import { pathToFileURL } from "url"
+import { AppNodeBuilder } from "@opencode-ai/core/effect/app-node-builder"
+import { LayerNode } from "@opencode-ai/core/effect/layer-node"
 import { Effect, Layer } from "effect"
 import { FSUtil } from "@opencode-ai/core/fs-util"
 import { Global } from "@opencode-ai/core/global"
@@ -11,7 +13,7 @@ import { TuiConfig } from "../../src/config/tui"
 import { TestInstance } from "../fixture/fixture"
 import { testEffect } from "../lib/effect"
 
-const it = testEffect(Layer.mergeAll(Config.defaultLayer, FSUtil.defaultLayer))
+const it = testEffect(LayerNode.compile(LayerNode.group([Config.node, FSUtil.node])))
 const winIt = process.platform === "win32" ? it.instance : it.instance.skip
 
 const globalConfigFiles = ["opencode.json", "opencode.jsonc", "tui.json", "tui.jsonc"].map((file) =>
@@ -69,12 +71,16 @@ const withPlatform = <A, E, R>(platform: typeof process.platform, self: Effect.E
 
 const getTuiConfig = (directory: string) =>
   TuiConfig.Service.use((svc) => svc.get()).pipe(
-    Effect.provide(TuiConfig.defaultLayer.pipe(Layer.provide(Layer.succeed(CurrentWorkingDirectory, directory)))),
+    Effect.provide(
+      AppNodeBuilder.build(TuiConfig.node).pipe(Layer.provide(Layer.succeed(CurrentWorkingDirectory, directory))),
+    ),
   )
 
 const getTuiPluginOrigins = (directory: string) =>
   TuiConfig.Service.use((svc) => svc.pluginOrigins()).pipe(
-    Effect.provide(TuiConfig.defaultLayer.pipe(Layer.provide(Layer.succeed(CurrentWorkingDirectory, directory)))),
+    Effect.provide(
+      AppNodeBuilder.build(TuiConfig.node).pipe(Layer.provide(Layer.succeed(CurrentWorkingDirectory, directory))),
+    ),
   )
 
 it.instance("keeps server and tui plugin merge semantics aligned", () =>

packages/opencode/test/control-plane/workspace.test.ts

@@ -5,9 +5,8 @@ import Http from "node:http"
 import path from "node:path"
 import { NodeHttpServer } from "@effect/platform-node"
 import { Effect, Exit, Fiber, Layer, Schema } from "effect"
-import { FetchHttpClient, HttpServer, HttpServerRequest, HttpServerResponse } from "effect/unstable/http"
+import { HttpServer, HttpServerRequest, HttpServerResponse } from "effect/unstable/http"
 import { eq } from "drizzle-orm"
-import { FSUtil } from "@opencode-ai/core/fs-util"
 import { GlobalBus, type GlobalEvent } from "@/bus/global"
 import { Database } from "@opencode-ai/core/database/database"
 import { ProjectV2 } from "@opencode-ai/core/project"
@@ -16,6 +15,7 @@ import { AbsolutePath } from "@opencode-ai/core/schema"
 import { Session as SessionNs } from "@/session/session"
 import { SessionID } from "@/session/schema"
 import { SessionTable } from "@opencode-ai/core/session/sql"
+import { SessionProjector } from "@opencode-ai/core/session/projector"
 import { EventSequenceTable } from "@opencode-ai/core/event/sql"
 import { resetDatabase } from "../fixture/db"
 import { disposeAllInstances, provideTmpdirInstance, requireInstance, TestInstance } from "../fixture/fixture"
@@ -27,13 +27,10 @@ import type { Target, WorkspaceAdapter, WorkspaceInfo } from "../../src/control-
 import * as Workspace from "../../src/control-plane/workspace"
 import { InstanceStore } from "@/project/instance-store"
 import { InstanceBootstrap } from "@/project/bootstrap"
-import { Auth } from "@/auth"
-import { SessionPrompt } from "@/session/prompt"
-import { Project } from "@/project/project"
-import { Vcs } from "@/project/vcs"
 import { RuntimeFlags } from "@/effect/runtime-flags"
-import { EventV2Bridge } from "@/event-v2-bridge"
 import { Ripgrep } from "@opencode-ai/core/ripgrep"
+import { AppNodeBuilder } from "@opencode-ai/core/effect/app-node-builder"
+import { LayerNode } from "@opencode-ai/core/effect/layer-node"
 
 const originalEnv = {
   OPENCODE_AUTH_CONTENT: process.env.OPENCODE_AUTH_CONTENT,
@@ -44,26 +41,27 @@ const originalEnv = {
 }
 
 const workspaceLayer = (experimentalWorkspaces: boolean) =>
-  Workspace.layer.pipe(
-    Layer.provide(Auth.defaultLayer),
-    Layer.provide(SessionNs.defaultLayer),
-    Layer.provide(SessionPrompt.defaultLayer),
-    Layer.provide(Project.defaultLayer),
-    Layer.provide(Vcs.defaultLayer),
-    Layer.provide(Database.defaultLayer),
-    Layer.provide(EventV2Bridge.defaultLayer),
-    Layer.provide(FetchHttpClient.layer),
-    Layer.provide(FSUtil.defaultLayer),
-    Layer.provide(RuntimeFlags.layer({ experimentalWorkspaces })),
-    Layer.provide(Ripgrep.defaultLayer),
-    Layer.provide(InstanceStore.defaultLayer.pipe(Layer.provide(InstanceBootstrap.defaultLayer))),
+  AppNodeBuilder.build(
+    LayerNode.group([
+      Workspace.node,
+      SessionNs.node,
+      SessionProjector.node,
+      Database.node,
+      InstanceStore.node,
+      Ripgrep.node,
+    ]),
+    [
+      [RuntimeFlags.node, RuntimeFlags.layer({ experimentalWorkspaces })],
+      [
+        InstanceStore.bootstrapNode,
+        Layer.succeed(InstanceBootstrap.Service, InstanceBootstrap.Service.of({ run: Effect.void })),
+      ],
+    ],
   )
 
 const testServerLayer = Layer.mergeAll(
   NodeHttpServer.layer(Http.createServer, { host: "127.0.0.1", port: 0 }),
   workspaceLayer(true),
-  SessionNs.defaultLayer,
-  Database.defaultLayer,
 )
 const it = testEffect(testServerLayer)
 

packages/opencode/test/effect/app-runtime-logger.test.ts

@@ -1,4 +1,5 @@
 import { expect } from "bun:test"
+import { LayerNode } from "@opencode-ai/core/effect/layer-node"
 import { Context, Deferred, Effect, Fiber, Layer, Logger } from "effect"
 import { CrossSpawnSpawner } from "@opencode-ai/core/cross-spawn-spawner"
 import { AppLayer } from "../../src/effect/app-runtime"
@@ -9,7 +10,8 @@ import { attach } from "../../src/effect/run-service"
 import { TestInstance } from "../fixture/fixture"
 import { testEffect } from "../lib/effect"
 
-const it = testEffect(CrossSpawnSpawner.defaultLayer)
+const observabilityLayer = LayerNode.compile(Observability.node)
+const it = testEffect(LayerNode.compile(CrossSpawnSpawner.node))
 
 function check(loggers: ReadonlySet<Logger.Logger<unknown, any>>) {
   return {
@@ -34,7 +36,7 @@ it.live("makeRuntime installs the observability logger", () =>
     )
 
     const current = yield* Dummy.use((svc) => svc.current()).pipe(
-      Effect.provide(Layer.provideMerge(layer, Observability.layer)),
+      Effect.provide(Layer.provideMerge(layer, observabilityLayer)),
     )
 
     expect(current.size).toBeGreaterThan(0)
@@ -94,6 +96,6 @@ it.instance(
 
       expect(result.directory).toBe(test.directory)
       expect(result.size).toBeGreaterThan(0)
-    }).pipe(Effect.provide(Observability.layer)),
+    }).pipe(Effect.provide(observabilityLayer)),
   { git: true },
 )

packages/opencode/test/effect/config-service.test.ts

@@ -10,12 +10,12 @@ class TestConfig extends ConfigService.Service<TestConfig>()("@test/ConfigServic
 }) {}
 
 const fromConfig = (input: Record<string, unknown>) =>
-  TestConfig.defaultLayer.pipe(Layer.provide(ConfigProvider.layer(ConfigProvider.fromUnknown(input))))
+  TestConfig.layer.pipe(Layer.provide(ConfigProvider.layer(ConfigProvider.fromUnknown(input))))
 
 const readConfig = TestConfig.useSync((config) => config)
 
 describe("ConfigService", () => {
-  it.effect("defaultLayer parses values from the active ConfigProvider", () =>
+  it.effect("layer parses values from the active ConfigProvider", () =>
     Effect.gen(function* () {
       const config = yield* readConfig.pipe(
         Effect.provide(
@@ -33,7 +33,7 @@ describe("ConfigService", () => {
     }),
   )
 
-  it.effect("defaultLayer applies Effect Config defaults", () =>
+  it.effect("layer applies Effect Config defaults", () =>
     Effect.gen(function* () {
       const config = yield* readConfig.pipe(Effect.provide(fromConfig({ NAME: "kit" })))
 
@@ -47,7 +47,7 @@ describe("ConfigService", () => {
     Effect.gen(function* () {
       const config = yield* readConfig.pipe(
         Effect.provide(
-          TestConfig.layer({
+          TestConfig.configLayer({
             name: "direct",
             token: Option.some("parsed"),
             port: 9000,

packages/opencode/test/effect/instance-state.test.ts

@@ -1,5 +1,6 @@
 import { expect } from "bun:test"
 import { CrossSpawnSpawner } from "@opencode-ai/core/cross-spawn-spawner"
+import { LayerNode } from "@opencode-ai/core/effect/layer-node"
 import { $ } from "bun"
 import { Context, Deferred, Duration, Effect, Exit, Fiber, Layer } from "effect"
 import { InstanceState } from "@/effect/instance-state"
@@ -12,7 +13,7 @@ import {
 } from "../fixture/fixture"
 import { testEffect } from "../lib/effect"
 
-const it = testEffect(Layer.mergeAll(CrossSpawnSpawner.defaultLayer, testInstanceStoreLayer))
+const it = testEffect(Layer.mergeAll(LayerNode.compile(CrossSpawnSpawner.node), testInstanceStoreLayer))
 
 const access = <A, E>(state: InstanceState.InstanceState<A, E>, dir: string) =>
   InstanceState.get(state).pipe(provideInstanceEffect(dir))

packages/opencode/test/effect/runtime-flags.test.ts

@@ -1,15 +1,16 @@
 import { describe, expect } from "bun:test"
 import { ConfigProvider, Effect, Layer } from "effect"
+import { AppNodeBuilder } from "@opencode-ai/core/effect/app-node-builder"
 import { RuntimeFlags } from "../../src/effect/runtime-flags"
 import { it } from "../lib/effect"
 
 const fromConfig = (input: Record<string, unknown>) =>
-  RuntimeFlags.defaultLayer.pipe(Layer.provide(ConfigProvider.layer(ConfigProvider.fromUnknown(input))))
+  AppNodeBuilder.build(RuntimeFlags.node).pipe(Layer.provide(ConfigProvider.layer(ConfigProvider.fromUnknown(input))))
 
 const readFlags = RuntimeFlags.Service.useSync((flags) => flags)
 
 describe("RuntimeFlags", () => {
-  it.effect("defaultLayer defaults autoShare to false", () =>
+  it.effect("layer defaults autoShare to false", () =>
     Effect.gen(function* () {
       const flags = yield* readFlags.pipe(Effect.provide(fromConfig({})))
 
@@ -17,7 +18,7 @@ describe("RuntimeFlags", () => {
     }),
   )
 
-  it.effect("defaultLayer parses plugin flags from the active ConfigProvider", () =>
+  it.effect("layer parses plugin flags from the active ConfigProvider", () =>
     Effect.gen(function* () {
       const flags = yield* readFlags.pipe(
         Effect.provide(
@@ -64,7 +65,7 @@ describe("RuntimeFlags", () => {
     }),
   )
 
-  it.effect("defaultLayer parses OPENCODE_EXPERIMENTAL_LSP_TY", () =>
+  it.effect("layer parses OPENCODE_EXPERIMENTAL_LSP_TY", () =>
     Effect.gen(function* () {
       const flags = yield* readFlags.pipe(
         Effect.provide(

packages/opencode/test/filesystem/filesystem.test.ts

@@ -1,12 +1,11 @@
 import { describe, test, expect } from "bun:test"
-import { Effect, Layer } from "effect"
-import { NodeFileSystem } from "@effect/platform-node"
+import { LayerNode } from "@opencode-ai/core/effect/layer-node"
+import { Effect } from "effect"
 import { FSUtil } from "@opencode-ai/core/fs-util"
 import { testEffect } from "../lib/effect"
 import path from "path"
 
-const live = FSUtil.layer.pipe(Layer.provide(NodeFileSystem.layer))
-const { effect: it } = testEffect(live)
+const { effect: it } = testEffect(LayerNode.compile(FSUtil.node))
 
 describe("FSUtil", () => {
   describe("isDir", () => {

packages/opencode/test/fixture/fixture.ts

@@ -7,8 +7,10 @@ import { Effect, Context, Layer } from "effect"
 import type * as PlatformError from "effect/PlatformError"
 import type * as Scope from "effect/Scope"
 import { CrossSpawnSpawner } from "@opencode-ai/core/cross-spawn-spawner"
+import { AppNodeBuilder } from "@opencode-ai/core/effect/app-node-builder"
 import { ChildProcess, ChildProcessSpawner } from "effect/unstable/process"
 import type { Config } from "@/config/config"
+import { LayerNode } from "@opencode-ai/core/effect/layer-node"
 import { InstanceRef } from "../../src/effect/instance-ref"
 import { InstanceBootstrap } from "../../src/project/bootstrap-service"
 import type { InstanceContext } from "../../src/project/instance-context"
@@ -17,7 +19,9 @@ import { InstanceStore } from "../../src/project/instance-store"
 import { TestLLMServer } from "../lib/llm-server"
 
 const noopBootstrap = Layer.succeed(InstanceBootstrap.Service, InstanceBootstrap.Service.of({ run: Effect.void }))
-export const testInstanceStoreLayer = InstanceStore.defaultLayer.pipe(Layer.provide(noopBootstrap))
+export const testInstanceStoreLayer = LayerNode.compile(InstanceStore.node, [
+  [InstanceStore.bootstrapNode, noopBootstrap],
+])
 
 export async function provideTestInstance<R>(input: {
   directory: string
@@ -204,7 +208,7 @@ export const withTmpdirInstance =
     Effect.gen(function* () {
       const directory = yield* tmpdirScoped(options)
       return yield* self.pipe(Effect.provideService(TestInstance, { directory }), provideInstanceEffect(directory))
-    }).pipe(Effect.provide(testInstanceStoreLayer), Effect.provide(CrossSpawnSpawner.defaultLayer))
+    }).pipe(Effect.provide(testInstanceStoreLayer), Effect.provide(AppNodeBuilder.build(CrossSpawnSpawner.node)))
 
 export function provideTmpdirServer<A, E, R>(
   self: (input: { dir: string; llm: TestLLMServer["Service"] }) => Effect.Effect<A, E, R>,

packages/opencode/test/fixture/workspace.ts

@@ -1,5 +1,5 @@
-import { FetchHttpClient } from "effect/unstable/http"
-import { Layer } from "effect"
+import { AppNodeBuilder } from "@opencode-ai/core/effect/app-node-builder"
+import { LayerNode } from "@opencode-ai/core/effect/layer-node"
 import { Database } from "@opencode-ai/core/database/database"
 import { FSUtil } from "@opencode-ai/core/fs-util"
 import { Auth } from "../../src/auth"
@@ -14,17 +14,21 @@ import { SessionPrompt } from "../../src/session/prompt"
 import { EventV2Bridge } from "../../src/event-v2-bridge"
 
 export const workspaceLayerWithRuntimeFlags = (overrides: Partial<RuntimeFlags.Info>) =>
-  Workspace.layer.pipe(
-    Layer.provide(Auth.defaultLayer),
-    Layer.provide(Session.defaultLayer),
-    Layer.provide(SessionPrompt.defaultLayer),
-    Layer.provide(Project.defaultLayer),
-    Layer.provide(Vcs.defaultLayer),
-    Layer.provide(Database.defaultLayer),
-    Layer.provide(EventV2Bridge.defaultLayer),
-    Layer.provide(FetchHttpClient.layer),
-    Layer.provide(FSUtil.defaultLayer),
-    Layer.provide(RuntimeFlags.layer(overrides)),
-    Layer.provide(InstanceStore.defaultLayer),
-    Layer.provide(InstanceBootstrap.defaultLayer),
+  AppNodeBuilder.build(
+    LayerNode.group([
+      Workspace.node,
+      Auth.node,
+      Session.node,
+      SessionPrompt.node,
+      Project.node,
+      Vcs.node,
+      Database.node,
+      EventV2Bridge.node,
+      FSUtil.node,
+      InstanceStore.node,
+    ]),
+    [
+      [InstanceStore.bootstrapNode, InstanceBootstrap.node],
+      [RuntimeFlags.node, RuntimeFlags.layer(overrides)],
+    ],
   )

packages/opencode/test/format/format.test.ts

@@ -1,5 +1,6 @@
 import { NodeFileSystem } from "@effect/platform-node"
 import { describe, expect } from "bun:test"
+import { LayerNode } from "@opencode-ai/core/effect/layer-node"
 import { Effect, Layer } from "effect"
 import { provideTmpdirInstance, testInstanceStoreLayer, TestInstance } from "../fixture/fixture"
 import { testEffect } from "../lib/effect"
@@ -7,7 +8,9 @@ import { CrossSpawnSpawner } from "@opencode-ai/core/cross-spawn-spawner"
 import { Format } from "../../src/format"
 import * as Formatter from "../../src/format/formatter"
 
-const it = testEffect(Layer.mergeAll(Format.defaultLayer, CrossSpawnSpawner.defaultLayer, NodeFileSystem.layer))
+const it = testEffect(
+  Layer.mergeAll(LayerNode.compile(LayerNode.group([Format.node, CrossSpawnSpawner.node])), NodeFileSystem.layer),
+)
 
 describe("Format", () => {
   it.instance("status() returns empty list when no formatters are configured", () =>
@@ -106,7 +109,11 @@ describe("Format", () => {
   )
 
   testEffect(
-    Layer.mergeAll(Format.defaultLayer, CrossSpawnSpawner.defaultLayer, NodeFileSystem.layer, testInstanceStoreLayer),
+    Layer.mergeAll(
+      LayerNode.compile(LayerNode.group([Format.node, CrossSpawnSpawner.node])),
+      NodeFileSystem.layer,
+      testInstanceStoreLayer,
+    ),
   ).live("status() initializes formatter state per directory", () =>
     Effect.gen(function* () {
       const a = yield* provideTmpdirInstance(() => Format.use.status(), {

packages/opencode/test/image/image.test.ts

@@ -1,20 +1,18 @@
 import { describe, expect } from "bun:test"
-import { Cause, Effect, Exit, Layer } from "effect"
+import { LayerNode } from "@opencode-ai/core/effect/layer-node"
+import { Cause, Effect, Exit } from "effect"
 import { Image } from "@/image/image"
+import { Config } from "@/config/config"
 import { MessageID, PartID, SessionID } from "@/session/schema"
 import path from "node:path"
 import { TestConfig } from "../fixture/config"
 import { testEffect } from "../lib/effect"
 
-const it = testEffect(Layer.mergeAll(Image.layer.pipe(Layer.provide(TestConfig.layer()))))
+const it = testEffect(LayerNode.compile(Image.node, [[Config.node, TestConfig.layer()]]))
 const tiny = testEffect(
-  Layer.mergeAll(
-    Image.layer.pipe(
-      Layer.provide(
-        TestConfig.layer({ get: () => Effect.succeed({ attachment: { image: { max_base64_bytes: 1 } } }) }),
-      ),
-    ),
-  ),
+  LayerNode.compile(Image.node, [
+    [Config.node, TestConfig.layer({ get: () => Effect.succeed({ attachment: { image: { max_base64_bytes: 1 } } }) })],
+  ]),
 )
 
 function part(mime: string, data: string) {

packages/opencode/test/installation/installation.test.ts

@@ -1,10 +1,13 @@
 import { describe, expect } from "bun:test"
+import { makeGlobalNode } from "@opencode-ai/core/effect/app-node"
+import { LayerNode } from "@opencode-ai/core/effect/layer-node"
+import { httpClient } from "@opencode-ai/core/effect/app-node-platform"
 import { Effect, Layer, Stream } from "effect"
 import { HttpClient, HttpClientRequest, HttpClientResponse } from "effect/unstable/http"
 import { ChildProcess, ChildProcessSpawner } from "effect/unstable/process"
 import { Installation } from "../../src/installation"
 import { InstallationChannel } from "@opencode-ai/core/installation/version"
-import { AppProcess } from "@opencode-ai/core/process"
+import { CrossSpawnSpawner } from "@opencode-ai/core/cross-spawn-spawner"
 import { testEffect } from "../lib/effect"
 
 const encoder = new TextEncoder()
@@ -52,8 +55,15 @@ function testLayer(
   httpHandler: (request: HttpClientRequest.HttpClientRequest) => Response,
   spawnHandler?: (cmd: string, args: readonly string[]) => string | { code: number; stdout?: string; stderr?: string },
 ) {
-  const appProcess = AppProcess.layer.pipe(Layer.provide(mockSpawner(spawnHandler)))
-  return Installation.layer.pipe(Layer.provide(mockHttpClient(httpHandler)), Layer.provide(appProcess))
+  const spawnerNode = makeGlobalNode({
+    service: ChildProcessSpawner.ChildProcessSpawner,
+    layer: mockSpawner(spawnHandler),
+    deps: [],
+  })
+  return LayerNode.compile(Installation.node, [
+    [httpClient, mockHttpClient(httpHandler)],
+    [CrossSpawnSpawner.node, spawnerNode],
+  ])
 }
 
 describe("installation", () => {