tui: simplify prompt input sync

Drop the burst-aware key interceptor that tried to keep derived prompt state current for every control binding. Frame-batch content updates only, and let exit, clear, stash, and autocomplete read or flush live textarea state at the command boundary instead.
tui: flush prompt sync before commands
2026-08-06 01:00:54 -04:00 · 2026-08-04 14:45:45 +02:00 · 2026-08-04 14:45:44 +02:00 · 2026-08-04 14:45:44 +02:00
281 changed files with 4383 additions and 3400 deletions
@@ -64,6 +64,7 @@
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        "@opencode-ai/core": "workspace:*",
        "@opencode-ai/schema": "workspace:*",
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@@ -284,9 +284,13 @@
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@@ -378,6 +386,7 @@
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    "@opencode-ai/console-app/@smithy/eventstream-codec": ["@smithy/eventstream-codec@4.2.7", "", { "dependencies": { "@aws-crypto/crc32": "5.2.0", "@smithy/types": "^4.11.0", "@smithy/util-hex-encoding": "^4.2.0", "tslib": "^2.6.2" } }, "sha512-DrpkEoM3j9cBBWhufqBwnbbn+3nf1N9FP6xuVJ+e220jbactKuQgaZwjwP5CP1t+O94brm2JgVMD2atMGX3xIQ=="],
@@ -6340,6 +6350,10 @@

    "@opencode-ai/console-mail/@types/react": ["@types/react@18.0.25", "", { "dependencies": { "@types/prop-types": "*", "@types/scheduler": "*", "csstype": "^3.0.2" } }, "sha512-xD6c0KDT4m7n9uD4ZHi02lzskaiqcBxf4zi+tXZY98a04wvc0hi/TcCPC2FOESZi51Nd7tlUeOJY8RofL799/g=="],

+    "@opencode-ai/core/@ai-sdk/openai": ["@ai-sdk/openai@3.0.84", "", { "dependencies": { "@ai-sdk/provider": "3.0.14", "@ai-sdk/provider-utils": "4.0.38" }, "peerDependencies": { "zod": "^3.25.76 || ^4.1.8" } }, "sha512-cmgbeJL0bbY0yTJH4/AdmP5E7MjWRL9G8UdhIi0JlV/So03o82ORJofW8OzwCZPTORVQblFbpZXYGDcUd9NdUQ=="],
+
+    "@opencode-ai/core/@ai-sdk/openai-compatible": ["@ai-sdk/openai-compatible@2.0.41", "", { "dependencies": { "@ai-sdk/provider": "3.0.8", "@ai-sdk/provider-utils": "4.0.23" }, "peerDependencies": { "zod": "^3.25.76 || ^4.1.8" } }, "sha512-kNAGINk71AlOXx10Dq/PXw4t/9XjdK8uxfpVElRwtSFMdeSiLVt58p9TPx4/FJD+hxZuVhvxYj9r42osxWq79g=="],
+
    "@opencode-ai/desktop/@actions/artifact": ["@actions/artifact@4.0.0", "", { "dependencies": { "@actions/core": "^1.10.0", "@actions/github": "^6.0.1", "@actions/http-client": "^2.1.0", "@azure/core-http": "^3.0.5", "@azure/storage-blob": "^12.15.0", "@octokit/core": "^5.2.1", "@octokit/plugin-request-log": "^1.0.4", "@octokit/plugin-retry": "^3.0.9", "@octokit/request": "^8.4.1", "@octokit/request-error": "^5.1.1", "@protobuf-ts/plugin": "^2.2.3-alpha.1", "archiver": "^7.0.1", "jwt-decode": "^3.1.2", "unzip-stream": "^0.3.1" } }, "sha512-HCc2jMJRAfviGFAh0FsOR/jNfWhirxl7W6z8zDtttt0GltwxBLdEIjLiweOPFl9WbyJRW1VWnPUSAixJqcWUMQ=="],

    "@opencode-ai/desktop/marked": ["marked@15.0.12", "", { "bin": { "marked": "bin/marked.js" } }, "sha512-8dD6FusOQSrpv9Z1rdNMdlSgQOIP880DHqnohobOmYLElGEqAL/JvxvuxZO16r4HtjTlfPRDC1hbvxC9dPN2nA=="],
@@ -6564,8 +6578,6 @@

    "babel-plugin-module-resolver/glob": ["glob@9.3.5", "", { "dependencies": { "fs.realpath": "^1.0.0", "minimatch": "^8.0.2", "minipass": "^4.2.4", "path-scurry": "^1.6.1" } }, "sha512-e1LleDykUz2Iu+MTYdkSsuWX8lvAjAcs0Xef0lNIu0S2wOAzuTxCJtcd9S3cijlwYF18EsU3rzb8jPVobxDh9Q=="],

-    "blume/@ai-sdk/openai-compatible": ["@ai-sdk/openai-compatible@2.0.37", "", { "dependencies": { "@ai-sdk/provider": "3.0.8", "@ai-sdk/provider-utils": "4.0.21" }, "peerDependencies": { "zod": "^3.25.76 || ^4.1.8" } }, "sha512-+POSFVcgiu47BK64dhsI6OpcDC0/VAE2ZSaXdXGNNhpC/ava++uSRJYks0k2bpfY0wwCTgpAWZsXn/dG2Yppiw=="],
-
    "blume/@astrojs/mdx": ["@astrojs/mdx@7.0.3", "", { "dependencies": { "@astrojs/internal-helpers": "0.10.1", "@astrojs/markdown-remark": "7.2.1", "@mdx-js/mdx": "^3.1.1", "acorn": "^8.16.0", "es-module-lexer": "^2.0.0", "estree-util-visit": "^2.0.0", "hast-util-to-html": "^9.0.5", "piccolore": "^0.1.3", "rehype-raw": "^7.0.0", "remark-gfm": "^4.0.1", "remark-smartypants": "^3.0.2", "source-map": "^0.7.6", "unist-util-visit": "^5.1.0", "vfile": "^6.0.3" }, "peerDependencies": { "@astrojs/markdown-satteri": "^0.3.1", "astro": "^7.0.0" }, "optionalPeers": ["@astrojs/markdown-satteri"] }, "sha512-RxyIwU0uFam5ftwqKOjpIdhnFxZ/kEikeimLyQy3eGXbHT8WgRGzzesOIHVU8+m9TY8ag5WVOyvV24/GyqPdPQ=="],

    "blume/@clack/prompts": ["@clack/prompts@1.7.0", "", { "dependencies": { "@clack/core": "1.4.3", "fast-string-width": "^3.0.2", "fast-wrap-ansi": "^0.2.0", "sisteransi": "^1.0.5" } }, "sha512-y7/yvZ2TPAnR9+jnc00klvNNLkJiXFFrQA/hlLCcxA9a2A4zQIOimyFQ9XfwYKiGD1fb5GY8vbKIIgO8d5Tb2A=="],
@@ -6702,6 +6714,8 @@

    "gcp-metadata/google-logging-utils": ["google-logging-utils@1.1.3", "", {}, "sha512-eAmLkjDjAFCVXg7A1unxHsLf961m6y17QFqXqAXGj/gVkKFrEICfStRfwUlGNfeCEjNRa32JEWOUTlYXPyyKvA=="],

+    "gitlab-ai-provider/openai": ["openai@6.49.0", "", { "peerDependencies": { "@aws-sdk/credential-provider-node": ">=3.972.0 <4", "@smithy/hash-node": ">=4.3.0 <5", "@smithy/signature-v4": ">=5.4.0 <6", "ws": "^8.18.0", "zod": "^3.25 || ^4.0" }, "optionalPeers": ["@aws-sdk/credential-provider-node", "@smithy/hash-node", "@smithy/signature-v4", "ws", "zod"] }, "sha512-aYCc0C6L864eR6WSYIwQGyXriw/nIyZx0ObvhzOEVuk0zoBDpynjSbrionWI7q65B5H8jJX0DXR9snEzM6bfPg=="],
+
    "gitlab-ai-provider/zod": ["zod@3.25.76", "", {}, "sha512-gzUt/qt81nXsFGKIFcC3YnfEAx5NkunCfnDlvuBSSFS02bcXu4Lmea0AFIUwbLWxWPx3d9p8S5QoaujKcNQxcQ=="],

    "globby/ignore": ["ignore@5.3.2", "", {}, "sha512-hsBTNUqQTDwkWtcdYI2i06Y/nUBEsNEDJKjWdigLvegy8kDuJAS8uRlpkkcQpyEXL0Z/pjDy5HBmMjRCJ2gq+g=="],
@@ -7366,6 +7380,10 @@

    "@octokit/rest/@octokit/core/before-after-hook": ["before-after-hook@4.0.0", "", {}, "sha512-q6tR3RPqIB1pMiTRMFcZwuG5T8vwp+vUvEG0vuI6B+Rikh5BfPp2fQ82c925FOs+b0lcFQ8CFrL+KbilfZFhOQ=="],

+    "@opencode-ai/core/@ai-sdk/openai/@ai-sdk/provider": ["@ai-sdk/provider@3.0.14", "", { "dependencies": { "json-schema": "^0.4.0" } }, "sha512-5X1k57JBJ4H7H1QjX7CnJYAB1I19r/trVZTMcSms7/kLNZ8RaU4Nt2agcwZzv82Hfx6Q7/TOLU7agAKeFfc8cA=="],
+
+    "@opencode-ai/core/@ai-sdk/openai/@ai-sdk/provider-utils": ["@ai-sdk/provider-utils@4.0.38", "", { "dependencies": { "@ai-sdk/provider": "3.0.14", "@standard-schema/spec": "^1.1.0", "eventsource-parser": "^3.0.8" }, "peerDependencies": { "zod": "^3.25.76 || ^4.1.8" } }, "sha512-/HHGmtKllqjg1OLc023v9w9kK3laW7Z6TzfZukYQWCsGBbzB9p60zTvvpXFVcs44NZBVXL3viOa1HRKUbeee8g=="],
+
    "@opencode-ai/desktop/@actions/artifact/@actions/core": ["@actions/core@1.11.1", "", { "dependencies": { "@actions/exec": "^1.1.1", "@actions/http-client": "^2.0.1" } }, "sha512-hXJCSrkwfA46Vd9Z3q4cpEpHB1rL5NG04+/rbqW9d3+CSvtB1tYe8UTpAlixa1vj0m/ULglfEK2UKxMGxCxv5A=="],

    "@opencode-ai/desktop/@actions/artifact/@actions/http-client": ["@actions/http-client@2.2.3", "", { "dependencies": { "tunnel": "^0.0.6", "undici": "^5.25.4" } }, "sha512-mx8hyJi/hjFvbPokCg4uRd4ZX78t+YyRPtnKWwIl+RzNaVuFpQHfmlGVfsKEJN8LwTCvL+DfVgAM04XaHkm6bA=="],
@@ -7602,8 +7620,6 @@

    "babel-plugin-module-resolver/glob/path-scurry": ["path-scurry@1.11.1", "", { "dependencies": { "lru-cache": "^10.2.0", "minipass": "^5.0.0 || ^6.0.2 || ^7.0.0" } }, "sha512-Xa4Nw17FS9ApQFJ9umLiJS4orGjm7ZzwUrwamcGQuHSzDyth9boKDaycYdDcZDuqYATXw4HFXgaqWTctW/v1HA=="],

-    "blume/@ai-sdk/openai-compatible/@ai-sdk/provider-utils": ["@ai-sdk/provider-utils@4.0.21", "", { "dependencies": { "@ai-sdk/provider": "3.0.8", "@standard-schema/spec": "^1.1.0", "eventsource-parser": "^3.0.6" }, "peerDependencies": { "zod": "^3.25.76 || ^4.1.8" } }, "sha512-MtFUYI1/8mgDvRmaBDjbLJPFFrMG777AvSgyIFQtZHIMzm88R/12vYBBpnk7pfiWLFE1DSZzY4WDYzGbKAcmiw=="],
-
    "blume/@astrojs/mdx/@astrojs/internal-helpers": ["@astrojs/internal-helpers@0.10.1", "", { "dependencies": { "@types/hast": "^3.0.4", "@types/mdast": "^4.0.4", "js-yaml": "^4.1.1", "picomatch": "^4.0.4", "retext-smartypants": "^6.2.0", "shiki": "^4.0.2", "smol-toml": "^1.6.0", "unified": "^11.0.5" } }, "sha512-5phcroT/vmOOrYuuAxtkbPixy5hePtlz9i8K4OeDv3dNK6/UQRuXPOSRTxIOBbUY5Sonw2UaxjbuVc43Mcir6Q=="],

    "blume/@astrojs/mdx/@astrojs/markdown-remark": ["@astrojs/markdown-remark@7.2.1", "", { "dependencies": { "@astrojs/internal-helpers": "0.10.1", "@astrojs/prism": "4.0.2", "github-slugger": "^2.0.0", "hast-util-from-html": "^2.0.3", "hast-util-to-text": "^4.0.2", "mdast-util-definitions": "^6.0.0", "rehype-raw": "^7.0.0", "rehype-stringify": "^10.0.1", "remark-gfm": "^4.0.1", "remark-parse": "^11.0.0", "remark-rehype": "^11.1.2", "remark-smartypants": "^3.0.2", "unified": "^11.0.5", "unist-util-remove-position": "^5.0.0", "unist-util-visit": "^5.1.0", "unist-util-visit-parents": "^6.0.2", "vfile": "^6.0.3" } }, "sha512-jPVNIqTvk+yKviikszv/Y1U4jGUSKpp/Nw48QZV4qjWgp70j4Lkq3lhSDRbWwCfgKvEyO9GHuVbV1dM2WYXy1w=="],
@@ -161,6 +161,7 @@
    "@silvia-odwyer/photon-node@0.3.4": "patches/@silvia-odwyer%2Fphoton-node@0.3.4.patch",
    "@standard-community/standard-openapi@0.2.9": "patches/@standard-community%2Fstandard-openapi@0.2.9.patch",
    "solid-js@1.9.10": "patches/solid-js@1.9.10.patch",
+    "@ai-sdk/xai@3.0.102": "patches/@ai-sdk%2Fxai@3.0.102.patch",
    "@ai-sdk/mistral@3.0.51": "patches/@ai-sdk%2Fmistral@3.0.51.patch",
    "gcp-metadata@8.1.2": "patches/gcp-metadata@8.1.2.patch",
    "pacote@21.5.0": "patches/pacote@21.5.0.patch",
@@ -444,7 +444,6 @@ const mapUsage = (usage: GeminiUsage | undefined) => {
 }

 const mapFinishReason = (finishReason: string | undefined, hasToolCalls: boolean): FinishReason => {
-  if (finishReason === undefined) return hasToolCalls ? "tool-calls" : "unknown"
  if (finishReason === "STOP") return hasToolCalls ? "tool-calls" : "stop"
  if (finishReason === "MAX_TOKENS") return "length"
  if (
@@ -5,7 +5,7 @@ import { Endpoint, type EndpointPatch } from "./endpoint"
 import { RequestExecutor } from "./executor"
 import { Framing } from "./framing"
 import { HttpTransport } from "./transport"
-import type { HttpMiddleware, Transport, TransportRuntime } from "./transport"
+import type { HttpRequestTransform, Transport, TransportRuntime } from "./transport"
 import { WebSocketExecutor } from "./transport"
 import type { Protocol } from "./protocol"
 import { applyCachePolicy } from "../cache-policy"
@@ -20,7 +20,6 @@ import {
  LanguageModel,
  LanguageModelLimits,
  LLMEvent,
-  InvalidProviderOutputReason,
  ProviderID,
  mergeGenerationOptions,
  mergeHttpOptions,
@@ -156,7 +155,7 @@ export interface Interface {
 }

 export interface StreamOptions {
-  readonly http?: HttpMiddleware
+  readonly transform?: HttpRequestTransform
 }

 export interface StreamMethod {
@@ -232,17 +231,6 @@ const streamError = (route: string, message: string, cause: Cause.Cause<unknown>
  return ProviderShared.eventError(route, message, Cause.pretty(cause))
 }

-const incompleteStreamError = (route: string) =>
-  new AIError({
-    module: "LLMClient",
-    method: "stream",
-    reason: new InvalidProviderOutputReason({
-      classification: "incomplete-stream",
-      message: "The provider response ended unexpectedly.",
-      route,
-    }),
-  })
-
 const requireTerminalEvent = (route: string) => (events: Stream.Stream<LLMEvent, AIError>) =>
  Stream.suspend(() => {
    let terminal = false
@@ -259,7 +247,7 @@ const requireTerminalEvent = (route: string) => (events: Stream.Stream<LLMEvent,
        Effect.suspend(() =>
          terminal
            ? Effect.void
-            : Effect.fail(incompleteStreamError(route)),
+            : Effect.fail(ProviderShared.eventError(route, "Provider stream ended without a terminal finish event")),
        ),
      ),
    )
@@ -319,7 +307,7 @@ function makeFromTransport<Body, Prepared, Frame, Event, State>(
          auth: routeInput.auth ?? Auth.none,
          encodeBody,
          headers: routeInput.headers,
-          middleware: options?.http,
+          transform: options?.transform,
        }),
      streamPrepared: (prepared: Prepared, request: LLMRequest, runtime: TransportRuntime) => {
        const route = `${request.model.provider}/${request.model.route.id}`
@@ -428,7 +416,10 @@ const generateWith = (stream: Interface["stream"]) =>
    const state = yield* stream(request, options).pipe(Stream.runFold(LLMResponse.empty, LLMResponse.reduce))
    const response = LLMResponse.complete(state)
    if (response) return response
-    return yield* incompleteStreamError(`${request.model.provider}/${request.model.route.id}`)
+    return yield* ProviderShared.eventError(
+      `${request.model.provider}/${request.model.route.id}`,
+      "Provider stream ended without a terminal finish event",
+    )
  })

 export function stream(request: LLMRequest, options?: StreamOptions): Stream.Stream<LLMEvent, AIError, Service> {
@@ -20,18 +20,9 @@ import { classifyProviderFailure } from "../provider-error"
 export interface Interface {
  readonly execute: (
    request: HttpClientRequest.HttpClientRequest,
-    middleware?: HttpMiddleware,
  ) => Effect.Effect<HttpClientResponse.HttpClientResponse, AIError>
 }

-export type HttpHandler = (
-  request: HttpClientRequest.HttpClientRequest,
-) => Effect.Effect<HttpClientResponse.HttpClientResponse, Error>
-export type HttpMiddleware = (
-  request: HttpClientRequest.HttpClientRequest,
-  handler: HttpHandler,
-) => Effect.Effect<HttpClientResponse.HttpClientResponse, Error>
-
 export class Service extends Context.Service<Service, Interface>()("@opencode/AI/RequestExecutor") {}

 const BODY_LIMIT = 16_384
@@ -270,7 +261,7 @@ const toHttpError = (redactedNames: ReadonlyArray<string | RegExp>) => (error: u
    return transportError({ message: error.message, kind: "Timeout" })
  }
  if (!HttpClientError.isHttpClientError(error)) {
-    return transportError({ message: error instanceof Error ? error.message : "HTTP transport failed" })
+    return transportError({ message: "HTTP transport failed" })
  }
  const request = "request" in error ? error.request : undefined
  if (error.reason._tag === "TransportError") {
@@ -291,20 +282,12 @@ export const layer: Layer.Layer<Service, never, HttpClient.HttpClient> = Layer.e
  Service,
  Effect.gen(function* () {
    const http = yield* HttpClient.HttpClient
-    const executeOnce = (request: HttpClientRequest.HttpClientRequest, middleware?: HttpMiddleware) =>
+    const executeOnce = (request: HttpClientRequest.HttpClientRequest) =>
      Effect.gen(function* () {
        const redactedNames = yield* Headers.CurrentRedactedNames
-        if (!middleware)
-          return yield* http
-            .execute(request)
-            .pipe(Effect.mapError(toHttpError(redactedNames)), Effect.flatMap(statusError(request, redactedNames)))
-
-        const response = yield* middleware(request, (input) =>
-          http
-            .execute(input)
-            .pipe(Effect.mapError((cause) => (cause instanceof Error ? cause : new Error(String(cause))))),
-        ).pipe(Effect.mapError(toHttpError(redactedNames)))
-        return yield* statusError(response.request, redactedNames)(response)
+        return yield* http
+          .execute(request)
+          .pipe(Effect.mapError(toHttpError(redactedNames)), Effect.flatMap(statusError(request, redactedNames)))
      })
    return Service.of({
      execute: executeOnce,
@@ -23,4 +23,4 @@ export type { ApiKeyMode, AuthOverride, ProviderAuthOption } from "./auth-option
 export type { Definition as EndpointFn, EndpointInput } from "./endpoint"
 export type { Definition as FramingDef } from "./framing"
 export type { Protocol as ProtocolDef } from "./protocol"
-export type { HttpHandler, HttpMiddleware, Transport as TransportDef, TransportRuntime } from "./transport"
+export type { HttpRequest, HttpRequestTransform, Transport as TransportDef, TransportRuntime } from "./transport"
@@ -3,7 +3,7 @@ import { Headers, HttpClientRequest } from "effect/unstable/http"
 import { Auth } from "../auth"
 import { render as renderEndpoint } from "../endpoint"
 import { Framing } from "../framing"
-import type { HttpMiddleware, Transport, TransportPrepareInput } from "./index"
+import type { Transport, TransportPrepareInput } from "./index"
 import * as ProviderShared from "../../protocols/shared"
 import { mergeJsonRecords, type LLMRequest } from "../../schema"

@@ -19,7 +19,6 @@ export interface JsonRequestParts<Body = unknown> {
 export interface HttpPrepared<Frame> {
  readonly request: HttpClientRequest.HttpClientRequest
  readonly framing: Framing.Definition<Frame>
-  readonly middleware?: HttpMiddleware
 }

 const applyQuery = (url: string, query: Record<string, string> | undefined) => {
@@ -75,21 +74,21 @@ export const httpJson = <Body, Frame>(input: HttpJsonInput<Body, Frame>): HttpJs
  prepare: (prepareInput) =>
    Effect.gen(function* () {
      const parts = yield* jsonRequestParts({ ...prepareInput })
-      const request = ProviderShared.jsonPost({
-        url: parts.url,
-        body: parts.bodyText,
-        headers: parts.headers,
-      })
+      const request = { url: parts.url, method: "POST", headers: { ...parts.headers }, body: parts.bodyText }
+      yield* (prepareInput.transform?.(request) ?? Effect.void)
      return {
-        request,
+        request: ProviderShared.jsonPost({
+          url: request.url,
+          body: request.body ?? "",
+          headers: Headers.fromInput(request.headers),
+        }),
        framing: input.framing,
-        middleware: prepareInput.middleware,
      }
    }),
  frames: (prepared, request, runtime) =>
    Stream.unwrap(
      runtime.http
-        .execute(prepared.request, prepared.middleware)
+        .execute(prepared.request)
        .pipe(
          Effect.map((response) =>
            prepared.framing.frame(
@@ -1,7 +1,7 @@
 import type { Effect, Stream } from "effect"
 import { Endpoint } from "../endpoint"
 import { Auth } from "../auth"
-import type { HttpMiddleware, Interface as RequestExecutorInterface } from "../executor"
+import type { Interface as RequestExecutorInterface } from "../executor"
 import type { Interface as WebSocketExecutorInterface } from "./websocket"
 import type { AIError, LLMRequest } from "../../schema"

@@ -10,6 +10,15 @@ export interface TransportRuntime {
  readonly webSocket?: WebSocketExecutorInterface
 }

+export interface HttpRequest {
+  url: string
+  readonly method: string
+  headers: Record<string, string>
+  body: string | undefined
+}
+
+export type HttpRequestTransform = (request: HttpRequest) => Effect.Effect<void>
+
 export interface Transport<Body, Prepared, Frame> {
  readonly id: string
  readonly prepare: (input: TransportPrepareInput<Body>) => Effect.Effect<Prepared, AIError>
@@ -23,9 +32,8 @@ export interface TransportPrepareInput<Body> {
  readonly auth: Auth.Definition
  readonly encodeBody: (body: Body) => string
  readonly headers?: (input: { readonly request: LLMRequest }) => Record<string, string>
-  readonly middleware?: HttpMiddleware
+  readonly transform?: HttpRequestTransform
 }

 export * as HttpTransport from "./http"
-export type { HttpHandler, HttpMiddleware } from "../executor"
 export { WebSocketExecutor, WebSocketTransport } from "./websocket"
@@ -105,7 +105,6 @@ export class InvalidProviderOutputReason extends Schema.Class<InvalidProviderOut
 )({
  _tag: Schema.tag("InvalidProviderOutput"),
  message: Schema.String,
-  classification: Schema.optional(Schema.Literals(["incomplete-stream"])),
  route: Schema.optional(Schema.String),
  raw: Schema.optional(Schema.String),
  providerMetadata: Schema.optional(ProviderMetadata),
@@ -24,7 +24,7 @@ export type ToolExecute<Parameters extends ToolSchema<any>, Success extends Tool
 ) => Effect.Effect<Schema.Schema.Type<Success>, ToolFailure>

 export interface ToolModelOutputInput<Parameters, Output> {
-  readonly id: ToolCallPart["id"]
+  readonly callID: ToolCallPart["id"]
  readonly parameters: Parameters
  readonly output: Output
 }
@@ -59,7 +59,7 @@ export interface Definition<Parameters extends ToolSchema<any>, Success extends
  /** @internal */
  readonly _project: (
    parameters: Schema.Schema.Type<Parameters>,
-    id: ToolCallPart["id"],
+    callID: ToolCallPart["id"],
    output: unknown,
  ) => ToolOutputType
  /** @internal */
@@ -173,8 +173,8 @@ export function make(config: TypedToolConfig | DynamicToolConfig): AnyTool {
      toStructuredOutput: config.toStructuredOutput,
      _decode: Effect.succeed,
      _encode: Effect.succeed,
-      _project: (parameters, id, output) =>
-        project(config.toModelOutput, config.toStructuredOutput, parameters, id, output),
+      _project: (parameters, callID, output) =>
+        project(config.toModelOutput, config.toStructuredOutput, parameters, callID, output),
      _legacyResult: config.toModelOutput === undefined && config.toStructuredOutput === undefined,
      _definition: new ToolDefinition({
        name: "",
@@ -193,8 +193,8 @@ export function make(config: TypedToolConfig | DynamicToolConfig): AnyTool {
    toStructuredOutput: config.toStructuredOutput,
    _decode: Schema.decodeUnknownEffect(config.parameters),
    _encode: Schema.encodeEffect(config.success),
-    _project: (parameters, id, output) =>
-      project(config.toModelOutput, config.toStructuredOutput, parameters, id, output),
+    _project: (parameters, callID, output) =>
+      project(config.toModelOutput, config.toStructuredOutput, parameters, callID, output),
    _legacyResult: false,
    _definition: new ToolDefinition({
      name: "",
@@ -239,12 +239,12 @@ const project = (
  toModelOutput: ((input: ToolModelOutputInput<any, any>) => ReadonlyArray<Tool.Content>) | undefined,
  toStructuredOutput: ((output: unknown) => unknown) | undefined,
  parameters: unknown,
-  id: ToolCallPart["id"],
+  callID: ToolCallPart["id"],
  output: unknown,
 ): ToolOutputType =>
  ToolOutput.make(
    toStructuredOutput?.(output) ?? output,
-    toModelOutput?.({ id, parameters, output }) ??
+    toModelOutput?.({ callID, parameters, output }) ??
      (typeof output === "string" ? [{ type: "text", text: output }] : []),
  )

@@ -133,8 +133,8 @@ describe("llm route", () => {
    Effect.gen(function* () {
      const error = yield* (yield* LLMClient.Service).stream(request).pipe(Stream.runDrain, Effect.flip)

-      expect(error.reason).toMatchObject({ _tag: "InvalidProviderOutput", classification: "incomplete-stream" })
-      expect(error.message).toContain("The provider response ended unexpectedly.")
+      expect(error.reason).toMatchObject({ _tag: "InvalidProviderOutput" })
+      expect(error.message).toContain("Provider stream ended without a terminal finish event")
    }),
  )

@@ -1,6 +1,6 @@
 import { describe, expect, test } from "bun:test"
-import { Effect, Ref, Schema } from "effect"
-import { HttpClientRequest, HttpClientResponse } from "effect/unstable/http"
+import { Effect, Schema } from "effect"
+import { HttpClientRequest } from "effect/unstable/http"
 import { LLM, mergeProviderOptions } from "../src"
 import { AnthropicMessages, OpenAIChat } from "../src/protocols"
 import { Auth, LLMClient } from "../src/route"
@@ -146,16 +146,12 @@ describe("request option precedence", () => {
        prompt: "Say hello.",
      }),
      {
-        http: (request, handler) =>
-          Effect.gen(function* () {
-            return yield* handler(
-              request.pipe(
-                HttpClientRequest.setUrl("https://proxy.test/v1/chat/completions"),
-                HttpClientRequest.setMethod("PUT"),
-                HttpClientRequest.setHeader("x-plugin", "transformed"),
-                HttpClientRequest.bodyText(JSON.stringify({ transformed: true }), "application/custom+json"),
-              ),
-            )
+        transform: (request) =>
+          Effect.sync(() => {
+            expect(request.headers.authorization).toBe("Bearer fresh-key")
+            request.url = "https://proxy.test/v1/chat/completions"
+            request.headers["x-plugin"] = "transformed"
+            request.body = JSON.stringify({ transformed: true })
          }),
      },
    ).pipe(
@@ -164,9 +160,7 @@ describe("request option precedence", () => {
          Effect.gen(function* () {
            const web = yield* HttpClientRequest.toWeb(input.request).pipe(Effect.orDie)
            expect(web.url).toBe("https://proxy.test/v1/chat/completions")
-            expect(web.method).toBe("PUT")
            expect(web.headers.get("x-plugin")).toBe("transformed")
-            expect(web.headers.get("content-type")).toBe("application/custom+json")
            expect(decodeJson(input.text)).toEqual({ transformed: true })
            return input.respond(sseEvents(deltaChunk({}, "stop")), {
              headers: { "content-type": "text/event-stream" },
@@ -177,82 +171,6 @@ describe("request option precedence", () => {
    ),
  )

-  it.effect("transforms the HTTP response before protocol decoding", () =>
-    Effect.gen(function* () {
-      const response = yield* LLMClient.generate(
-        LLM.request({
-          model: OpenAIChat.route
-            .with({ endpoint: { baseURL: "https://api.openai.test/v1/" }, auth: Auth.bearer("test") })
-            .model({ id: "gpt-4o-mini" }),
-          prompt: "Say hello.",
-        }),
-        {
-          http: (request, handler) =>
-            Effect.gen(function* () {
-              const response = yield* handler(request)
-              return HttpClientResponse.fromWeb(
-                response.request,
-                new Response((yield* response.text).replace("network", "hooked"), {
-                  status: response.status,
-                  headers: response.headers,
-                }),
-              )
-            }),
-        },
-      ).pipe(
-        Effect.provide(
-          dynamicResponse((input) =>
-            Effect.succeed(
-              input.respond(sseEvents(deltaChunk({ content: "network" }, "stop")), {
-                headers: { "content-type": "text/event-stream" },
-              }),
-            ),
-          ),
-        ),
-      )
-
-      expect(response.text).toBe("hooked")
-    }),
-  )
-
-  it.effect("can inspect an error response and retry the native request", () =>
-    Effect.gen(function* () {
-      const attempts = yield* Ref.make(0)
-      const response = yield* LLMClient.generate(
-        LLM.request({
-          model: OpenAIChat.route
-            .with({ endpoint: { baseURL: "https://api.openai.test/v1/" }, auth: Auth.bearer("stale") })
-            .model({ id: "gpt-4o-mini" }),
-          prompt: "Say hello.",
-        }),
-        {
-          http: (request, handler) =>
-            Effect.gen(function* () {
-              const response = yield* handler(request)
-              expect(response.status).toBe(401)
-              return yield* handler(HttpClientRequest.setHeader(request, "authorization", "Bearer refreshed"))
-            }),
-        },
-      ).pipe(
-        Effect.provide(
-          dynamicResponse((input) =>
-            Effect.gen(function* () {
-              yield* Ref.update(attempts, (value) => value + 1)
-              if (input.request.headers.authorization !== "Bearer refreshed")
-                return input.respond("unauthorized", { status: 401 })
-              return input.respond(sseEvents(deltaChunk({ content: "retried" }, "stop")), {
-                headers: { "content-type": "text/event-stream" },
-              })
-            }),
-          ),
-        ),
-      )
-
-      expect(response.text).toBe("retried")
-      expect(yield* Ref.get(attempts)).toBe(2)
-    }),
-  )
-
  it.effect("applies raw body overlays after protocol lowering", () =>
    LLMClient.generate(
      LLM.request({
@@ -67,18 +67,6 @@ const expectAIError = (error: unknown) => {
 const errorHttp = (error: AIError) => ("http" in error.reason ? error.reason.http : undefined)

 describe("RequestExecutor", () => {
-  it.effect("preserves middleware error messages", () =>
-    Effect.gen(function* () {
-      const executor = yield* RequestExecutor.Service
-      const error = yield* executor
-        .execute(request, () => Effect.fail(new Error("plugin rejected request")))
-        .pipe(Effect.flip)
-
-      expectAIError(error)
-      expect(error.reason.message).toBe("plugin rejected request")
-    }).pipe(Effect.provide(responsesLayer([]))),
-  )
-
  it.effect("classifies context overflow responses", () =>
    Effect.gen(function* () {
      const executor = yield* RequestExecutor.Service
@@ -538,8 +538,7 @@ describe("Anthropic Messages route", () => {

      expect(error.reason).toMatchObject({
        _tag: "InvalidProviderOutput",
-        classification: "incomplete-stream",
-        message: "The provider response ended unexpectedly.",
+        message: "Provider stream ended without a terminal finish event",
      })
    }),
  )
@@ -601,34 +601,6 @@ describe("Gemini route", () => {
    }),
  )

-  it.effect("maps tool calls without a finish reason", () =>
-    Effect.gen(function* () {
-      const response = yield* LLMClient.generate(
-        LLMRequest.update(request, {
-          tools: [ToolDefinition.make({ name: "lookup", description: "Lookup data", inputSchema: { type: "object" } })],
-        }),
-      ).pipe(
-        Effect.provide(
-          fixedResponse(
-            sseEvents({
-              candidates: [
-                {
-                  content: {
-                    role: "model",
-                    parts: [{ functionCall: { name: "lookup", args: { query: "weather" } } }],
-                  },
-                },
-              ],
-              usageMetadata: { promptTokenCount: 5, candidatesTokenCount: 1 },
-            }),
-          ),
-        ),
-      )
-
-      expect(response.finishReason).toEqual({ normalized: "tool-calls", raw: undefined })
-    }),
-  )
-
  it.effect("assigns unique ids to multiple streamed tool calls", () =>
    Effect.gen(function* () {
      const body = sseEvents({
@@ -1136,12 +1136,9 @@ describe("OpenAI Chat route", () => {
        { type: "tool-input-delta", id: "call_1", name: "lookup", text: ':"weather"}' },
      ])
      expect(events.filter(LLMEvent.is.toolCall)).toEqual([])
-      expect(streamError.reason).toMatchObject({
-        _tag: "InvalidProviderOutput",
-        classification: "incomplete-stream",
-      })
-      expect(streamError.message).toContain("The provider response ended unexpectedly.")
-      expect(error.message).toContain("The provider response ended unexpectedly.")
+      expect(streamError.reason).toMatchObject({ _tag: "InvalidProviderOutput" })
+      expect(streamError.message).toContain("Provider stream ended without a terminal finish event")
+      expect(error.message).toContain("Provider stream ended without a terminal finish event")
    }),
  )

@@ -169,7 +169,7 @@ describe("LLMClient tools", () => {
        LLMEvent.toolCall({ id: "call_projected", name: "projected", input: { prefix: "count" } }),
      )

-      expect(calls).toEqual([{ id: "call_projected", parameters: { prefix: "count" }, output: { count: "2" } }])
+      expect(calls).toEqual([{ callID: "call_projected", parameters: { prefix: "count" }, output: { count: "2" } }])
      expect(dispatched.result).toEqual({ type: "text", value: "count:2" })
      expect(dispatched.output).toEqual({ structured: { count: "2" }, content: [{ type: "text", text: "count:2" }] })
      expect(dispatched.events).toEqual([
@@ -27,8 +27,8 @@ Tool.make({
  parameters: Schema.Struct({ city: Schema.String }),
  success: Schema.Struct({ forecast: Schema.NumberFromString }),
  execute: () => Effect.succeed({ forecast: 1 }),
-  toModelOutput: ({ id, parameters, output }) => [
-    { type: "text", text: `${id}:${parameters.city}:${output.forecast}` },
+  toModelOutput: ({ callID, parameters, output }) => [
+    { type: "text", text: `${callID}:${parameters.city}:${output.forecast}` },
  ],
 })

@@ -0,0 +1,220 @@
+# V1 API Migration Checklist
+
+The app is currently hybrid. In this document, V1 refers to the legacy unprefixed server APIs used by `@opencode-ai/sdk/v2`, despite the SDK package name.
+
+## Events
+
+- [x] Replace `GET /global/event` with `GET /api/event`.
+  - `src/context/server-sdk.tsx`
+- [x] Reduce current granular session and message events into the existing app projections.
+  - `src/context/server-session-v2-reducer.ts`
+  - `src/context/server-session.ts`
+- [ ] Remove transitional session event dependencies: `session.created`, `session.updated`, `session.diff`, `session.status`, `session.idle`, and `session.error`.
+  - `src/context/global-sync/event-reducer.ts`
+  - `src/context/server-session.ts`
+  - `src/context/notification.tsx`
+  - `src/pages/session/usage-exceeded-dialogs.tsx`
+- [ ] Remove legacy message event compatibility: `message.updated`, `message.removed`, `message.part.updated`, `message.part.removed`, and `message.part.delta`.
+  - `src/context/global-sync/event-reducer.ts`
+  - `src/context/server-session.ts`
+- [x] Adapt current permission and question events to the existing request model.
+  - `src/context/global-sync/event-reducer.ts`
+  - `src/context/permission.tsx`
+- [x] Consume current file watcher events.
+  - `src/context/file.tsx`
+- [x] Consume current VCS events.
+  - `src/context/global-sync/event-reducer.ts`
+  - `src/pages/session.tsx`
+- [x] Consume current `pty.exited` events.
+  - `src/context/terminal.tsx`
+- [ ] Migrate LSP and reference events.
+  - `src/context/global-sync/event-reducer.ts`
+
+## Sessions
+
+- [x] Replace `GET /session/status` with one server-scoped `GET /api/session/active` snapshot plus V2 execution events.
+  - `src/context/server-sync.tsx`
+- [x] Migrate session listing from `GET /session`.
+  - `src/context/server-sync.tsx`
+  - `src/context/directory-sync.ts`
+  - `src/pages/layout.tsx`
+- [x] Migrate the remaining direct session read from `GET /session/:sessionID`.
+  - `src/components/titlebar.tsx`
+- [x] Migrate session updates from `PATCH /session/:sessionID`.
+  - `src/context/directory-sync.ts`
+  - `src/context/layout.tsx`
+  - `src/pages/home.tsx`
+  - `src/pages/layout.tsx`
+  - `src/pages/session/timeline/message-timeline.tsx`
+  - `src/components/titlebar-tab-nav.tsx`
+  - Renames use `POST /api/session/:sessionID/rename`; archival uses `POST /api/session/:sessionID/archive`.
+- [x] Migrate session deletion from `DELETE /session/:sessionID`.
+  - `src/pages/session/timeline/message-timeline.tsx`
+- [x] Remove session diff loading from `GET /session/:sessionID/diff`.
+  - Historical Session diffs remain unavailable until the current API defines their snapshot semantics.
+- [x] Migrate abort from `POST /session/:sessionID/abort`.
+  - `src/components/prompt-input/submit.ts`
+  - `src/pages/session/use-session-commands.tsx`
+  - `src/pages/session.tsx`
+- [x] Migrate revert and unrevert from `POST /session/:sessionID/revert` and `POST /session/:sessionID/unrevert`.
+  - `src/pages/session/use-session-commands.tsx`
+  - `src/pages/session.tsx`
+- [x] Replace `POST /session/:sessionID/summarize` with the current compact API.
+  - `src/pages/session/use-session-commands.tsx`
+- [x] Migrate slash commands from `POST /session/:sessionID/command`.
+  - `src/components/prompt-input/submit.ts`
+- [x] Migrate shell execution from `POST /session/:sessionID/shell`.
+  - `src/components/prompt-input/submit.ts`
+- [x] Migrate session fork from `POST /session/:sessionID/fork`.
+  - `src/components/dialog-fork.tsx`
+- [ ] Migrate sharing from `POST /session/:sessionID/share` and `DELETE /session/:sessionID/share`.
+  - `src/pages/session/use-session-commands.tsx`
+  - `src/pages/session/timeline/message-timeline.tsx`
+  - Blocked: the current API has no sharing contract or implementation.
+
+## Session Compatibility Fallbacks
+
+These calls are retained as fallback adapters. The current production path supplies the current session and message APIs.
+
+- [ ] Remove fallback `GET /session/:sessionID` after compatibility support is unnecessary.
+  - `src/context/server-session.ts`
+- [ ] Remove fallback `GET /session/:sessionID/message` after compatibility support is unnecessary.
+  - `src/context/server-session.ts`
+- [ ] Remove fallback `GET /session/:sessionID/message/:messageID` after compatibility support is unnecessary.
+  - `src/context/server-session.ts`
+
+## Filesystem
+
+- [ ] Migrate file listing from `GET /file`.
+  - `src/context/file.tsx`
+- [ ] Migrate file reads from `GET /file/content`.
+  - `src/context/file.tsx`
+  - `src/pages/session/review-tab.tsx`
+  - `src/pages/session/v2/review-panel-v2.tsx`
+- [x] Migrate path discovery from `GET /path` to `GET /api/path`.
+  - `src/context/global-sync/bootstrap.ts`
+  - `src/components/dialog-select-directory.tsx`
+  - `src/components/dialog-select-directory-v2.tsx`
+
+## Projects And Worktrees
+
+- [x] Migrate project listing from `GET /project` to `GET /api/project`.
+  - `src/context/global-sync/bootstrap.ts`
+- [x] Migrate the current project lookup from `GET /project/current` to `GET /api/project/current`.
+  - `src/context/global-sync/bootstrap.ts`
+- [ ] Migrate Git initialization from `POST /project/git/init`.
+  - `src/pages/session.tsx`
+- [x] Migrate project updates from `PATCH /project/:projectID` to `PATCH /api/project/:projectID`.
+  - `src/context/layout.tsx`
+  - `src/components/edit-project.ts`
+  - `src/pages/layout.tsx`
+- [ ] Migrate experimental worktree listing, creation, removal, and reset from `/experimental/worktree`.
+  - `src/pages/layout.tsx`
+  - `src/components/prompt-input/submit.ts`
+  - Listing now uses `GET /api/project/:projectID/directories`; create, removal, and reset remain.
+- [ ] Migrate instance disposal from `POST /instance/dispose`.
+  - `src/pages/layout.tsx`
+
+## VCS
+
+- [x] Migrate repository information from `GET /vcs` to `GET /api/vcs`.
+  - `src/context/global-sync/bootstrap.ts`
+- [x] Migrate diffs from `GET /vcs/diff` to `GET /api/vcs/diff`.
+  - `src/pages/session.tsx`
+- [x] Migrate status from `GET /vcs/status` to `GET /api/vcs/status`.
+  - `src/pages/layout.tsx`
+
+## Configuration And Authentication
+
+- [ ] Migrate global configuration reads from `GET /global/config`.
+  - `src/context/global-sync/bootstrap.ts`
+- [ ] Migrate directory configuration reads from `GET /config`.
+  - `src/context/global-sync/bootstrap.ts`
+- [ ] Migrate global configuration updates from `PATCH /global/config`.
+  - `src/context/server-sync.tsx`
+- [x] Migrate provider authentication method discovery from `GET /provider/auth` to `GET /api/integration/:integrationID`.
+  - `src/components/dialog-connect-provider.tsx`
+- [x] Migrate built-in provider OAuth authorization and callbacks to `/api/integration/:integrationID/connect/oauth/*`.
+  - `src/components/dialog-connect-provider.tsx`
+- [ ] Migrate remaining credentials from `PUT /auth/:providerID` and `DELETE /auth/:providerID`.
+  - Built-in provider key connections now use `POST /api/integration/:integrationID/connect/key`.
+  - `src/components/dialog-connect-provider.tsx`
+  - `src/components/dialog-custom-provider.tsx`
+  - `src/components/settings-providers.tsx`
+  - `src/components/settings-v2/providers.tsx`
+- [ ] Migrate global disposal from `POST /global/dispose`.
+  - `src/components/dialog-connect-provider.tsx`
+  - `src/components/settings-providers.tsx`
+  - `src/components/settings-v2/providers.tsx`
+
+## Permissions And Questions
+
+- [x] Migrate permission listing from `GET /permission` to `GET /api/permission/request`.
+  - `src/context/global-sync/bootstrap.ts`
+  - `src/context/permission.tsx`
+- [x] Migrate permission responses from `/session/:sessionID/permissions/:permissionID`.
+  - `src/context/permission.tsx`
+  - `src/pages/session/composer/session-composer-state.ts`
+- [x] Migrate question listing from `GET /question` to `GET /api/question/request`.
+  - `src/context/global-sync/bootstrap.ts`
+- [x] Migrate question replies and rejections from `/question/:requestID/*` to `/api/session/:sessionID/question/:requestID/*`.
+  - `src/pages/session/composer/session-question-dock.tsx`
+
+## Commands, MCP, LSP, And References
+
+- [x] Migrate command listing from `GET /command` to `GET /api/command`.
+  - `src/context/global-sync/bootstrap.ts`
+  - `src/context/server-sync.tsx`
+- [x] Migrate MCP listing, connection, and disconnection from `/mcp` to `/api/mcp`.
+  - `src/context/server-sync.tsx`
+- [ ] Replace legacy MCP authentication with the Integration OAuth workflow.
+  - `src/context/server-sync.tsx`
+- [x] Migrate experimental resource listing from `GET /experimental/resource` to `GET /api/mcp/resource`.
+  - `src/context/server-sync.tsx`
+- [ ] Migrate LSP status from `GET /lsp`.
+  - `src/context/server-sync.tsx`
+- [x] Move `GET /api/reference` off the legacy generated SDK transport.
+  - `src/context/global-sync/bootstrap.ts`
+
+## Search
+
+- [x] Migrate global session search from `GET /experimental/session` to `GET /api/session`.
+  - `src/components/command-palette.ts`
+  - `src/components/dialog-command-palette-v2.tsx`
+
+## PTY And Terminal
+
+- [x] Migrate PTY creation, reads, updates, and deletion from `/pty` to `/api/pty`.
+  - `src/context/terminal.tsx`
+  - `src/components/terminal.tsx`
+- [x] Migrate shell listing from `GET /pty/shells` to `GET /api/pty/shells`.
+  - `src/components/settings-general.tsx`
+  - `src/components/settings-v2/general.tsx`
+- [x] Migrate connection tokens from `POST /pty/:ptyID/connect-token` to `POST /api/pty/:ptyID/connect-token`.
+  - `src/components/terminal.tsx`
+- [x] Migrate the direct WebSocket connection from `/pty/:ptyID/connect` to `/api/pty/:ptyID/connect`.
+  - `src/components/terminal.tsx`
+
+## Legacy Types And Adapters
+
+These are not V1 network requests, but they keep the UI coupled to V1 data contracts.
+
+- [ ] Replace the current-session-to-legacy-session adapter.
+  - `src/utils/session.ts`
+- [ ] Replace the current-message-to-legacy-message-and-part adapter.
+  - `src/utils/session-message.ts`
+- [ ] Replace current agent, provider, and model adapters to legacy SDK structures.
+  - `src/context/global-sync/utils.ts`
+- [ ] Replace legacy `Session`, `Message`, `Part`, `PermissionRequest`, `QuestionRequest`, `Project`, `FileNode`, `FileDiffInfo`, and `Event` types throughout app state and rendering.
+- [ ] Remove the `@opencode-ai/sdk` runtime dependency after all legacy calls and types are gone.
+  - `package.json`
+
+## Test Infrastructure
+
+- [ ] Replace V1 endpoint mocks with current API mocks.
+  - `e2e/utils/mock-server.ts`
+- [x] Replace `/global/event` and `/event` interception with current event transport handling.
+  - `e2e/utils/sse-transport.ts`
+- [ ] Replace `SessionV1` and legacy SDK fixtures in timeline performance tests.
+  - `e2e/performance/timeline-stability/fixture.ts`
+- [ ] Remove remaining legacy SDK type fixtures from unit and browser tests.
@@ -2,8 +2,17 @@ import { base64Encode } from "@opencode-ai/core/util/encode"
 import { Event } from "@opencode-ai/schema/event"
 import { SessionStatusEvent } from "@opencode-ai/schema/session-status-event"
 import { SessionV1 } from "@opencode-ai/schema/session-v1"
-import type { SessionV1Info, SessionStatus } from "@opencode-ai/client/promise"
-import type { AssistantMessage, Message, Part, ToolPart, ToolState, UserMessage } from "../../../src/types"
+import type {
+  AssistantMessage,
+  GlobalEvent,
+  Message,
+  Part,
+  Session,
+  SessionStatus,
+  ToolPart,
+  ToolState,
+  UserMessage,
+} from "@opencode-ai/sdk/v2/client"
 import { expect, type Page } from "@playwright/test"
 import { Schema } from "effect"
 import { mockOpenCodeServer } from "../../utils/mock-server"
@@ -18,29 +27,18 @@ export const assistantID = "msg_1001_timeline_assistant"
 export const title = "Timeline visual stability"
 export const model = { providerID: "opencode", modelID: "claude-opus-4-6", variant: "max" }

-type Session = SessionV1Info
-type GlobalEvent = {
-  directory: string
-  project?: string
-  workspace?: string
-  payload: {
-    id: string
-    type: string
-    properties: Record<string, unknown>
+type TimelinePayload = Extract<
+  GlobalEvent["payload"],
+  {
+    type:
+      | "message.updated"
+      | "message.removed"
+      | "message.part.updated"
+      | "message.part.removed"
+      | "message.part.delta"
+      | "session.status"
  }
-}
-
-type TimelineProperties = {
-  "message.updated": { sessionID: string; info: Message }
-  "message.removed": { sessionID: string; messageID: string }
-  "message.part.updated": { sessionID: string; part: Part; time: number }
-  "message.part.removed": { sessionID: string; messageID: string; partID: string }
-  "message.part.delta": { sessionID: string; messageID: string; partID: string; field: string; delta: string }
-  "session.status": { sessionID: string; status: SessionStatus }
-}
-type TimelinePayload = {
-  [Type in keyof TimelineProperties]: { id: string; type: Type; properties: TimelineProperties[Type] }
-}[keyof TimelineProperties]
+>

 type DeepReadonly<Value> = Value extends readonly unknown[]
  ? { readonly [Key in keyof Value]: DeepReadonly<Value[Key]> }
@@ -99,6 +97,7 @@ export async function setupTimeline(
    locale?: string
    deviceScaleFactor?: number
    seedHistory?: boolean
+    protocol?: "v1" | "v2"
  } = {},
 ) {
  const sessions = input.sessions ?? [session()]
@@ -116,7 +115,7 @@ export async function setupTimeline(
    retry: input.eventRetry ?? 20,
  })
  await mockOpenCodeServer(page, {
-    protocol: "v2",
+    protocol: input.protocol,
    directory,
    project: project(),
    provider: provider(),
@@ -236,7 +235,7 @@ export function event(type: TimelinePayload["type"], properties: TimelinePayload
 }

 export function validateTimelineEvent(input: unknown): TimelineEvent {
-  return decodeEvent(input, decodeOptions) as TimelineEvent
+  return decodeEvent(input, decodeOptions)
 }

 export function validateTimelineMessages(input: readonly TimelineMessage[]): TimelineMessage[] {
@@ -461,7 +460,7 @@ export function toolPart(
  input: Record<string, unknown>,
  options: ToolOptions<ToolStatus> = {},
 ): Omit<ToolPart, "sessionID" | "messageID"> {
-  const base = { id, type: "tool" as const, callID: id, tool }
+  const base = { id, type: "tool" as const, callID: `call_${id}`, tool }
  if (state === "pending") return { ...base, state: { status: state, input, raw: "" } }
  if (state === "running")
    return {
@@ -1,121 +1,6 @@
 import { expect, test } from "bun:test"
-import type { SessionMessageInfo } from "@opencode-ai/client/promise"
 import type { Page, Route } from "@playwright/test"
-import { currentMessage, mockOpenCodeServer } from "../../utils/mock-server"
-
-test("preserves current messages", () => {
-  const message = {
-    id: "msg_current",
-    type: "user",
-    time: { created: 1 },
-    text: "current",
-    files: [{ data: "e30=", mime: "application/json", source: { type: "inline" } }],
-  } satisfies SessionMessageInfo
-
-  expect(currentMessage(message)).toBe(message)
-})
-
-test("converts rich legacy messages to current message types", () => {
-  expect(
-    currentMessage({
-      info: { id: "msg_user", role: "user", time: { created: 1 } },
-      parts: [
-        { type: "text", text: "Use @src/a.ts with @explore" },
-        {
-          type: "file",
-          mime: "application/json",
-          filename: "data.json",
-          url: "data:application/json;base64,e30=",
-        },
-        {
-          type: "file",
-          mime: "text/plain",
-          filename: "a.ts",
-          url: "src/a.ts",
-          source: { type: "file", text: { value: "@src/a.ts", start: 4, end: 13 } },
-        },
-        { type: "agent", name: "explore", source: { value: "@explore", start: 19, end: 27 } },
-      ],
-    }),
-  ).toEqual({
-    id: "msg_user",
-    type: "user",
-    time: { created: 1 },
-    text: "Use @src/a.ts with @explore",
-    files: [
-      { data: "e30=", mime: "application/json", name: "data.json", source: { type: "inline" } },
-      {
-        data: "",
-        mime: "text/plain",
-        name: "a.ts",
-        source: { type: "uri", uri: "src/a.ts" },
-        mention: { text: "@src/a.ts", start: 4, end: 13 },
-      },
-    ],
-    agents: [{ name: "explore", mention: { text: "@explore", start: 19, end: 27 } }],
-  })
-
-  expect(
-    currentMessage({
-      info: {
-        id: "msg_assistant",
-        role: "assistant",
-        time: { created: 2, completed: 5 },
-        agent: "explore",
-        modelID: "model",
-        providerID: "provider",
-        variant: "high",
-        cost: 0.5,
-        tokens: { input: 1, output: 2, reasoning: 3, cache: { read: 4, write: 5 } },
-        finish: "tool-calls",
-        error: { name: "MessageAbortedError", data: { message: "Stopped" } },
-      },
-      parts: [
-        { type: "text", text: "Answer" },
-        { type: "reasoning", text: "Thinking", time: { start: 2, end: 3 } },
-        {
-          id: "prt_tool",
-          callID: "call_tool",
-          type: "tool",
-          tool: "read",
-          state: {
-            status: "completed",
-            input: { filePath: "src/a.ts" },
-            output: "contents",
-            metadata: { title: "a.ts" },
-            time: { start: 3, end: 4 },
-          },
-        },
-      ],
-    }),
-  ).toEqual({
-    id: "msg_assistant",
-    type: "assistant",
-    time: { created: 2, completed: 5 },
-    agent: "explore",
-    model: { id: "model", providerID: "provider", variant: "high" },
-    cost: 0.5,
-    tokens: { input: 1, output: 2, reasoning: 3, cache: { read: 4, write: 5 } },
-    finish: "tool-calls",
-    error: { type: "MessageAbortedError", message: "Stopped" },
-    content: [
-      { type: "text", text: "Answer" },
-      { type: "reasoning", text: "Thinking", time: { created: 2, completed: 3 } },
-      {
-        type: "tool",
-        id: "call_tool",
-        name: "read",
-        time: { created: 3, ran: 3, completed: 4 },
-        state: {
-          status: "completed",
-          input: { filePath: "src/a.ts" },
-          content: [{ type: "text", text: "contents" }],
-          metadata: { title: "a.ts" },
-        },
-      },
-    ],
-  })
-})
+import { mockOpenCodeServer } from "../../utils/mock-server"

 test("applies message latency after a list response gate is released", async () => {
  const events: string[] = []
@@ -145,7 +30,7 @@ test("applies message latency after a list response gate is released", async ()
  })

  const response = handler!({
-    request: () => ({ url: () => "http://127.0.0.1:4096/api/session/session/message" }),
+    request: () => ({ url: () => "http://127.0.0.1:4096/session/session/message" }),
    fulfill: () => {
      events.push("fulfill")
      return Promise.resolve()
@@ -85,17 +85,21 @@ async function mockServers(page: Page, requests: string[]) {
    const current = url.origin === serverA ? sessionA : sessionB
    const directory = url.searchParams.get("directory")
    if (directory && directory !== current.directory) return json(route, { name: "InvalidDirectory" }, 500)
-    if (url.pathname === "/api/event")
+    if (url.pathname === "/global/event" || url.pathname === "/event" || url.pathname === "/api/event")
      return sse(route)
+    if (url.pathname === "/global/health") return json(route, {}, 404)
    if (url.pathname === "/api/health") return json(route, { pid: 1 })
    if (url.pathname === "/api/session") return json(route, { data: [currentSession(current)], cursor: {} })
    if (url.pathname === "/api/session/active") return json(route, { data: {} })
    if (url.pathname === `/api/session/${current.id}`) return json(route, { data: currentSession(current) })
    if (url.pathname === `/api/session/${current.id}/message`) return json(route, { data: [], cursor: {} })
+    if (url.pathname === `/session/${current.id}`) return json(route, current)
    if (/^\/session\/[^/]+$/.test(url.pathname)) return json(route, { name: "NotFoundError" }, 404)
+    if (url.pathname === `/session/${current.id}/message`) return json(route, [])
    if (/^\/session\/[^/]+\/(children|todo|diff)$/.test(url.pathname)) return json(route, [])
    if (["/skill", "/command", "/lsp", "/formatter", "/permission", "/question", "/vcs/diff"].includes(url.pathname))
      return json(route, [])
+    if (["/global/config", "/config", "/provider/auth", "/mcp"].includes(url.pathname)) return json(route, {})
    if (url.pathname === "/provider")
      return json(route, { all: [], connected: [], default: { providerID: "", modelID: "" } })
    if (url.pathname === "/agent") return json(route, [{ name: "build", mode: "primary" }])
@@ -3,7 +3,7 @@ import { expect, test, type Page, type Route } from "@playwright/test"
 import { installSseTransport } from "../utils/sse-transport"
 import { currentSession } from "../utils/mock-server"

-const serverA = `http://127.0.0.1:${process.env.PLAYWRIGHT_SERVER_PORT ?? "4096"}`
+const serverA = "http://127.0.0.1:4096"
 const serverB = "http://127.0.0.1:4097"
 const directoryA = "C:/server-a"
 const directoryB = "/home/server-b"
@@ -32,7 +32,7 @@ test("session settings use the remote server context", async ({ page }) => {
    .poll(() =>
      permissionRequests.some((request) => {
        const url = new URL(request)
-        return url.origin === serverB && url.searchParams.get("location[directory]") === directoryB
+        return url.origin === serverB && url.searchParams.get("directory") === directoryB
      }),
    )
    .toBe(true)
@@ -67,7 +67,7 @@ test("auto-accept responds for an unfocused server session", async ({ page }) =>
    .poll(() =>
      permissionRequests.some((request) => {
        const url = new URL(request)
-        return url.origin === serverA && url.searchParams.get("location[directory]") === directoryA
+        return url.origin === serverA && url.searchParams.get("directory") === directoryA
      }),
    )
    .toBe(true)
@@ -99,10 +99,10 @@ test("auto-accept responds for an unfocused server session", async ({ page }) =>
    .toEqual([
      {
        origin: serverA,
-        directory: undefined,
+        directory: directoryA,
        sessionID: sessionA.id,
        permissionID: "permission-background-a",
-        body: { reply: "once" },
+        body: { response: "once" },
      },
    ])

@@ -127,17 +127,17 @@ test("auto-accept responds for an unfocused server session", async ({ page }) =>
    .toEqual([
      {
        origin: serverA,
-        directory: undefined,
+        directory: directoryA,
        sessionID: sessionA.id,
        permissionID: "permission-background-a",
-        body: { reply: "once" },
+        body: { response: "once" },
      },
      {
        origin: serverA,
-        directory: undefined,
+        directory: directoryA,
        sessionID: childSessionA.id,
        permissionID: "permission-background-a-child",
-        body: { reply: "once" },
+        body: { response: "once" },
      },
    ])
 })
@@ -168,8 +168,8 @@ async function mockServers(page: Page, permissionRequests: string[], permissionR
    const remote = url.origin === serverB
    const directory = remote ? directoryB : directoryA
    const sessions = remote ? [sessionB] : [sessionA, childSessionA]
-    const requestDirectory = url.searchParams.get("location[directory]")
-    const response = url.pathname.match(/^\/api\/session\/([^/]+)\/permission\/([^/]+)\/reply$/)
+    const requestDirectory = url.searchParams.get("directory")
+    const response = url.pathname.match(/^\/session\/([^/]+)\/permissions\/([^/]+)$/)
    if (route.request().method() === "POST" && response) {
      permissionResponses.push({
        origin: url.origin,
@@ -181,21 +181,13 @@ async function mockServers(page: Page, permissionRequests: string[], permissionR
      return json(route, true)
    }
    if (requestDirectory && requestDirectory !== directory) return json(route, { name: "InvalidDirectory" }, 500)
-    if (url.pathname === "/api/event")
+    if (url.pathname === "/global/event" || url.pathname === "/event" || url.pathname === "/api/event")
      return sse(route)
-    if (url.pathname === "/api/provider")
-      return json(route, {
-        location: { directory },
-        data: [{ id: remote ? "server-b" : "server-a", name: remote ? "Server B Provider" : "Server A Provider", package: "test" }],
-      })
-    if (url.pathname === "/api/model") return json(route, { location: { directory }, data: [model(remote)] })
-    if (url.pathname === "/api/model/default") return json(route, { location: { directory }, data: model(remote) })
-    if (url.pathname === "/api/agent") return json(route, { location: { directory }, data: [] })
-    if (url.pathname === "/api/permission/request") {
-      permissionRequests.push(url.toString())
-      return json(route, { location: { directory }, data: [] })
-    }
-    if (["/api/command", "/api/reference", "/api/question/request"].includes(url.pathname))
+    if (url.pathname === "/global/health") return json(route, { healthy: true })
+    if (url.pathname === "/api/provider" || url.pathname === "/api/model" || url.pathname === "/api/agent")
+      return json(route, { data: [] })
+    if (url.pathname === "/api/model/default") return json(route, { data: null })
+    if (["/api/command", "/api/reference", "/api/permission/request", "/api/question/request"].includes(url.pathname))
      return json(route, { location: { directory }, data: [] })
    if (url.pathname === "/api/mcp") return json(route, { location: { directory }, data: [] })
    if (url.pathname === "/api/mcp/resource")
@@ -219,6 +211,8 @@ async function mockServers(page: Page, permissionRequests: string[], permissionR
    if (currentSessionInfo) return json(route, { data: currentSession(currentSessionInfo) })
    if (sessions.some((session) => url.pathname === `/api/session/${session.id}/message`))
      return json(route, { data: [], cursor: {} })
+    const current = sessions.find((session) => url.pathname === `/session/${session.id}`)
+    if (current) return json(route, current)
    if (/^\/session\/[^/]+$/.test(url.pathname)) return json(route, { name: "NotFoundError" }, 404)
    if (/^\/session\/[^/]+\/message$/.test(url.pathname)) return json(route, [])
    if (/^\/session\/[^/]+\/(children|todo|diff)$/.test(url.pathname)) return json(route, [])
@@ -228,6 +222,7 @@ async function mockServers(page: Page, permissionRequests: string[], permissionR
    }
    if (["/skill", "/command", "/lsp", "/formatter", "/question", "/vcs/diff", "/pty/shells"].includes(url.pathname))
      return json(route, [])
+    if (["/global/config", "/config", "/provider/auth", "/mcp"].includes(url.pathname)) return json(route, {})
    if (url.pathname === "/provider") return json(route, provider(remote ? "server-b" : "server-a"))
    if (url.pathname === "/agent") return json(route, [{ name: "build", mode: "primary" }])
    if (url.pathname === "/project" || url.pathname === "/project/current") {
@@ -293,25 +288,6 @@ function provider(id: string) {
  }
 }

-function model(remote: boolean) {
-  const id = remote ? "server-b" : "server-a"
-  const name = remote ? "Server B" : "Server A"
-  return {
-    id,
-    modelID: id,
-    providerID: id,
-    name: `${name} Model`,
-    family: id,
-    capabilities: { tools: true, input: ["text"], output: ["text"] },
-    variants: [],
-    time: { released: Date.now() },
-    cost: [{ input: 0, output: 0, cache: { read: 0, write: 0 } }],
-    status: "active",
-    enabled: true,
-    limit: { context: 200_000, output: 32_000 },
-  }
-}
-
 function json(route: Route, body: unknown, status = 200) {
  return route.fulfill({
    status,
@@ -58,18 +58,22 @@ async function mockServers(page: Page) {
    const current = url.origin === serverA ? sessionA : sessionB
    const directory = url.searchParams.get("directory")
    if (directory && directory !== current.directory) return json(route, { name: "InvalidDirectory" }, 500)
-    if (url.pathname === "/api/event")
+    if (url.pathname === "/global/event" || url.pathname === "/event" || url.pathname === "/api/event")
      return sse(route, url.pathname === "/api/event")
+    if (url.pathname === "/global/health") return json(route, {}, 404)
    if (url.pathname === "/api/health") return json(route, { pid: 1 })
    if (url.pathname === "/api/session/active")
      return json(route, { data: url.origin === serverB ? { [sessionB.id]: { type: "running" } } : {} })
    if (url.pathname === "/api/session") return json(route, { data: [currentSession(current)], cursor: {} })
    if (url.pathname === `/api/session/${current.id}`) return json(route, { data: currentSession(current) })
    if (url.pathname === `/api/session/${current.id}/message`) return json(route, { data: [], cursor: {} })
+    if (url.pathname === `/session/${current.id}`) return json(route, current)
    if (/^\/session\/[^/]+$/.test(url.pathname)) return json(route, { name: "NotFoundError" }, 404)
+    if (url.pathname === `/session/${current.id}/message`) return json(route, [])
    if (/^\/session\/[^/]+\/(children|todo|diff)$/.test(url.pathname)) return json(route, [])
    if (["/skill", "/command", "/lsp", "/formatter", "/permission", "/question", "/vcs/diff"].includes(url.pathname))
      return json(route, [])
+    if (["/global/config", "/config", "/provider/auth", "/mcp"].includes(url.pathname)) return json(route, {})
    if (url.pathname === "/provider")
      return json(route, { all: [], connected: [], default: { providerID: "", modelID: "" } })
    if (url.pathname === "/agent") return json(route, [{ name: "build", mode: "primary" }])
@@ -14,7 +14,6 @@ test.use({ viewport: { width: 1440, height: 900 } })
 test("opens and searches project files inline", async ({ page }) => {
  const searches: { query: string; dirs?: string; limit?: number }[] = []
  await mockOpenCodeServer(page, {
-    protocol: "v2",
    directory,
    project: {
      id: projectID,
@@ -128,7 +127,7 @@ test("opens and searches project files inline", async ({ page }) => {
  await expect(panel.getByRole("tab", { name: "nested.ts" })).toHaveAttribute("data-selected", "")
  await expect(sidebarToggle).toBeEnabled()
  await expect(panel.getByText("contents:src/nested.ts", { exact: true })).toBeVisible()
-  expect(searches).toContainEqual({ query: "nested", dirs: "file", limit: 200 })
+  expect(searches).toContainEqual({ query: "nested", dirs: "false", limit: 200 })

  await panel.getByRole("button", { name: "Open file" }).click()
  await expect(panel.getByRole("tab", { name: "nested.ts" })).toHaveCount(1)
@@ -19,25 +19,36 @@ test("restores review mode and selected file per session", async ({ page }) => {
  await expectSessionTitle(page, titleA)
  await page.getByRole("button", { name: "Toggle review" }).click()

-  await selectFile(page, "alpha.ts")
+  await selectMode(page, "Git changes", "Branch changes")
+  await selectFile(page, "beta.ts")

  await switchSession(page, titleB)
  await expect(page.getByRole("button", { name: "Git changes" })).toBeVisible()
  await selectFile(page, "gamma.ts")

  await switchSession(page, titleA)
+  await expect(page.getByRole("button", { name: "Branch changes" })).toBeVisible()
+  await expectSelectedFile(page, "beta.ts")
+  await selectMode(page, "Branch changes", "Git changes")
  await expectSelectedFile(page, "alpha.ts")
+  await selectMode(page, "Git changes", "Branch changes")
+  await expectSelectedFile(page, "beta.ts")

  await page.reload()
  await expectSessionTitle(page, titleA)
-  await expect(page.getByRole("button", { name: "Git changes" })).toBeVisible()
-  await expectSelectedFile(page, "alpha.ts")
+  await expect(page.getByRole("button", { name: "Branch changes" })).toBeVisible()
+  await expectSelectedFile(page, "beta.ts")

  await switchSession(page, titleB)
  await expect(page.getByRole("button", { name: "Git changes" })).toBeVisible()
  await expectSelectedFile(page, "gamma.ts")
 })

+async function selectMode(page: Page, current: string, next: string) {
+  await page.getByRole("button", { name: current }).click()
+  await page.getByRole("option", { name: next }).dispatchEvent("click")
+}
+
 async function selectFile(page: Page, file: string) {
  await page.getByRole("button", { name: file }).click()
  await expectSelectedFile(page, file)
@@ -54,7 +65,7 @@ async function switchSession(page: Page, title: string) {

 async function setup(page: Page) {
  await mockOpenCodeServer(page, {
-    protocol: "v2",
+    protocol: "v1",
    directory,
    project: {
      id: projectID,
@@ -78,27 +89,22 @@ async function setup(page: Page) {
    sessions: [session(sessionA, titleA, 1700000000000), session(sessionB, titleB, 1700000001000)],
    pageMessages: () => ({ items: [] }),
  })
-  await page.route(/\/api\/vcs(?:\?.*)?$/, (route) =>
+  await page.route(/\/vcs(?:\?.*)?$/, (route) =>
    route.fulfill({
      status: 200,
      contentType: "application/json",
-      body: JSON.stringify({
-        location: { directory, project: { id: projectID, directory, canonical: directory } },
-        data: { branch: "feature", defaultBranch: "dev" },
-      }),
+      body: JSON.stringify({ branch: "feature", default_branch: "dev" }),
    }),
  )
-  await page.route("**/api/vcs/diff**", (route) =>
+  await page.route("**/vcs/diff**", (route) =>
    route.fulfill({
      status: 200,
      contentType: "application/json",
-      body: JSON.stringify({
-        location: { directory, project: { id: projectID, directory, canonical: directory } },
-        data:
-          new URL(route.request().url()).searchParams.get("mode") === "branch"
-            ? [diff("src/alpha.ts"), diff("src/beta.ts")]
-            : [diff("src/alpha.ts"), diff("src/gamma.ts")],
-      }),
+      body: JSON.stringify(
+        new URL(route.request().url()).searchParams.get("mode") === "branch"
+          ? [diff("src/alpha.ts"), diff("src/beta.ts")]
+          : [diff("src/alpha.ts"), diff("src/gamma.ts")],
+      ),
    }),
  )
  await page.addInitScript(
@@ -25,7 +25,7 @@ test("keeps the review tree and terminal sized when both panels are open", async
  let detailFailures = 1
  await page.setViewportSize({ width: 1400, height: 900 })
  await mockOpenCodeServer(page, {
-    protocol: "v2",
+    protocol: "v1",
    directory,
    project: {
      id: projectID,
@@ -62,32 +62,33 @@ test("keeps the review tree and terminal sized when both panels are open", async
    events: () => events.splice(0, 1),
    eventRetry: 16,
  })
-  await page.route(/\/api\/vcs(?:\?.*)?$/, (route) =>
+  await page.route(/\/vcs(?:\?.*)?$/, (route) =>
    route.fulfill({
      status: 200,
      contentType: "application/json",
      body: JSON.stringify({
-        location: { directory, project: { id: projectID, directory, canonical: directory } },
-        data: { branch: "review-pane-performance", defaultBranch: "dev" },
+        branch: "review-pane-performance",
+        default_branch: "dev",
      }),
    }),
  )
-  await page.route("**/api/vcs/diff**", (route) => {
+  await page.route("**/vcs/diff**", (route) => {
    const url = new URL(route.request().url())
-    const scope = url.searchParams.get("location[directory]")?.replaceAll("\\", "/")
+    const scope = url.searchParams.get("directory")?.replaceAll("\\", "/")
    const detail = scope?.endsWith("/src/branch/d00027")
    if (detail && detailFailures-- > 0) return route.fulfill({ status: 500, body: "retry detail" })
    return route.fulfill({
      status: 200,
      contentType: "application/json",
-      body: JSON.stringify({
-        location: { directory, project: { id: projectID, directory, canonical: directory } },
-        data: detail
-          ? branchDiffs
-              .filter((diff) => diff.file.startsWith("src/branch/d00027/"))
-              .map((diff) => fileDiff(diff.file, diff.additions, true, detailVersion))
-          : branchDiffs,
-      }),
+      body: JSON.stringify(
+        url.searchParams.get("mode") === "branch"
+          ? detail
+            ? branchDiffs
+                .filter((diff) => diff.file.startsWith("src/branch/d00027/"))
+                .map((diff) => fileDiff(diff.file, diff.additions, true, detailVersion))
+            : branchDiffs
+          : Array.from({ length: 7 }, (_, index) => fileDiff(`src/git-${index}.ts`, 1)),
+      ),
    })
  })
  await page.route("**/pty*", (route) =>
@@ -108,7 +109,7 @@ test("keeps the review tree and terminal sized when both panels are open", async
      }),
    }),
  )
-  await page.route("**/api/pty/pty_review_terminal*", (route) =>
+  await page.route("**/pty/pty_review_terminal*", (route) =>
    route.fulfill({
      status: 200,
      contentType: "application/json",
@@ -126,7 +127,7 @@ test("keeps the review tree and terminal sized when both panels are open", async
      }),
    }),
  )
-  await page.route("**/api/pty/pty_review_terminal/connect-token*", (route) =>
+  await page.route("**/pty/pty_review_terminal/connect-token*", (route) =>
    route.fulfill({
      status: 200,
      contentType: "application/json",
@@ -136,7 +137,7 @@ test("keeps the review tree and terminal sized when both panels are open", async
      }),
    }),
  )
-  await page.routeWebSocket("**/api/pty/pty_review_terminal/connect", () => undefined)
+  await page.routeWebSocket("**/pty/pty_review_terminal/connect", () => undefined)
  await page.addInitScript(() => {
    localStorage.setItem("settings.v3", JSON.stringify({ general: { newLayoutDesigns: true } }))
    localStorage.setItem(
@@ -148,7 +149,9 @@ test("keeps the review tree and terminal sized when both panels are open", async
  await page.goto(`/${base64Encode(directory)}/session/${sessionID}`)
  await expectSessionTitle(page, title)
  await expect(page.locator("#review-panel")).toBeVisible()
-  await expectTree(page, 2_773, "action.yml")
+  await expectTree(page, 8, "git-0.ts")
+
+  await selectMode(page, "Git changes", "Branch changes")
  await expect(page.locator("#session-side-panel-review-tab")).toHaveText("Files Changed 2740")
  await page.keyboard.press("Control+Backquote")
  await expect(page.locator("#terminal-panel")).toBeVisible()
@@ -171,9 +174,9 @@ test("keeps the review tree and terminal sized when both panels are open", async
  expect(bottomGap).toBeLessThanOrEqual(16)
  const lazyDiff = page.waitForRequest((request) => {
    const url = new URL(request.url())
-      return (
-        url.pathname === "/api/vcs/diff" &&
-      url.searchParams.get("location[directory]")?.replaceAll("\\", "/").endsWith("/src/branch/d00027") === true
+    return (
+      url.pathname === "/vcs/diff" &&
+      url.searchParams.get("directory")?.replaceAll("\\", "/").endsWith("/src/branch/d00027") === true
    )
  })
  await lastFile.click()
@@ -187,46 +190,59 @@ test("keeps the review tree and terminal sized when both panels are open", async
  const refreshedDiff = page.waitForRequest((request) => {
    const url = new URL(request.url())
    return (
-      url.pathname === "/api/vcs/diff" &&
-      url.searchParams.get("location[directory]")?.replaceAll("\\", "/").endsWith("/src/branch/d00027") === true
+      url.pathname === "/vcs/diff" &&
+      url.searchParams.get("directory")?.replaceAll("\\", "/").endsWith("/src/branch/d00027") === true
    )
  })
  sessionStatus[sessionID] = { type: "idle" }
  events.push(statusEvent("idle"))
  await refreshedDiff
  await expect(preview).toContainText("after-2")
+  await selectMode(page, "Branch changes", "Git changes")
+  await expectTree(page, 8, "git-0.ts")
+  await page.getByRole("button", { name: "git-0.ts" }).click()
+  await selectMode(page, "Git changes", "Branch changes")
+  await expectTree(page, 2_773, "action.yml")
+
  const filter = page.getByRole("searchbox", { name: "Filter files" })
  await filter.fill("generated-2738")
  await expectTree(page, 1, "generated-2738.ts")
  await filter.fill("")
-  await expectTree(page, 2_773, "generated-2738.ts")
+  await expectTree(page, 2_773, "action.yml")

  await page.getByRole("button", { name: "Toggle file tree" }).click()
  await expect(page.locator('[data-slot="session-review-v2-sidebar"]')).toHaveCount(0)
  await expect(page.locator('#review-panel [data-component="file-tree-v2"]')).toHaveCount(0)
  await page.getByRole("button", { name: "Toggle file tree" }).click()
-  await expectTree(page, 2_773, "generated-2738.ts")
+  await expectTree(page, 2_773, "action.yml")

  await page.keyboard.press("Control+Backquote")
  await expect(page.locator("#terminal-panel")).toHaveCount(0)
-  await expectTree(page, 2_773, "generated-2738.ts")
+  await expectTree(page, 2_773, "action.yml")
  await page.keyboard.press("Control+Backquote")
  await expect(page.locator("#terminal-panel")).toBeVisible()
-  await expectTree(page, 2_773, "generated-2738.ts")
+  await expectTree(page, 2_773, "action.yml")

  await page.getByRole("button", { name: "Toggle review" }).click()
  await expect(page.locator("#review-panel")).toHaveCount(0)
  await page.getByRole("button", { name: "Toggle review" }).click()
-  await expectTree(page, 2_773, "generated-2738.ts")
+  await expectTree(page, 2_773, "action.yml")
  await page.setViewportSize({ width: 1_000, height: 700 })
-  await expectTree(page, 2_773, "generated-2738.ts")
+  await expectTree(page, 2_773, "action.yml")
  await expectStackGeometry(page)
  await page.setViewportSize({ width: 1_000, height: 120 })
  await page.setViewportSize({ width: 1_400, height: 900 })
-  await expectTree(page, 2_773, "generated-2738.ts")
+  await expectTree(page, 2_773, "action.yml")
  await expectStackGeometry(page)
 })

+async function selectMode(page: Page, current: string, next: string) {
+  await page.getByRole("button", { name: current }).click()
+  const option = page.getByRole("option", { name: next })
+  await expect(option).toBeVisible()
+  await option.click()
+}
+
 async function expectTree(page: Page, total: number, file: string) {
  await expectMountedTree(page, total)
  await expect(page.getByRole("button", { name: file })).toBeVisible()
@@ -52,7 +52,7 @@ const editPart = {
  sessionID,
  messageID: assistantMessageID,
  type: "tool",
-  callID: editPartID,
+  callID: "call_edit_regression",
  tool: "edit",
  state: {
    status: "completed",
@@ -14,8 +14,8 @@ const projectID = "proj_context_resize_regression"
 const sessionID = "ses_context_resize_regression"
 const title = "Context resize regression"
 const model = { providerID: "opencode", modelID: "claude-opus-4-6", variant: "max" }
-const contextIDs = ["ctx_0100_read", "ctx_0101_glob", "ctx_0102_grep", "ctx_0103_list"]
-const followingTextID = `${id("msg_assistant", 10)}:text:0`
+const contextIDs = ["prt_0100_read", "prt_0101_glob", "prt_0102_grep", "prt_0103_list"]
+const followingTextID = "prt_0104_text"

 type Message = {
  info: Record<string, unknown> & { id: string; role: "user" | "assistant" }
@@ -263,7 +263,7 @@ function turn(index: number, target: boolean, status: "running" | "completed" =
            ),
            contextTool(contextIDs[3]!, assistantID, "list", { path: "src" }, status),
            {
-              id: "prt_0104_text",
+              id: followingTextID,
              sessionID,
              messageID: assistantID,
              type: "text",
@@ -295,7 +295,7 @@ function contextTool(
    sessionID,
    messageID,
    type: "tool",
-    callID: partID,
+    callID: `call_${partID}`,
    tool,
    state: {
      status,
@@ -10,6 +10,7 @@ import {
  status,
  textPart,
  title,
+  userID,
  userMessage,
 } from "../performance/timeline-stability/fixture"
 import { mockOpenCodeServer } from "../utils/mock-server"
@@ -18,22 +19,18 @@ import { expectSessionTitle } from "../utils/waits"

 const initialPageSize = 20
 const historyPageSize = 200
-const messages = Array.from({ length: initialPageSize + 1 }, (_, index) => {
-  const id = `msg_${String(index + 1001).padStart(4, "0")}_history_root_user`
-  return [
-    userMessage(undefined, { id, created: 1700000000000 + index * 2_000 }),
-    assistantMessage([textPart(`prt_history_root_${index}`, `Assistant response ${index}`)], {
-      id: `msg_${String(index + 1001).padStart(4, "0")}_history_root_assistant`,
-      parentID: id,
-      created: 1700000001000 + index * 2_000,
-      completed: index < initialPageSize,
-    }),
-  ]
-}).flat()
-const assistants = messages.filter((message) => message.info.role === "assistant")
+const assistants = Array.from({ length: initialPageSize + 1 }, (_, index) =>
+  assistantMessage([textPart(`prt_history_root_${index}`, `Assistant response ${index}`)], {
+    id: `msg_${String(index + 1001).padStart(4, "0")}_history_root_assistant`,
+    parentID: userID,
+    created: 1700000001000 + index * 1_000,
+    completed: index < initialPageSize,
+  }),
+)
+const messages = [userMessage(), ...assistants]
 const lastAssistant = assistants.at(-1)!
-const lastPartID = `${assistants.at(-1)!.info.id}:text:0`
-const userPartID = `${messages.at(-2)!.info.id}:text:0`
+const lastPartID = assistants.at(-1)!.parts[0]!.id
+const userPartID = `prt_${userID}_text`
 const completed = {
  ...lastAssistant.info,
  time: { ...lastAssistant.info.time, completed: lastAssistant.info.time.created + 15_000 },
@@ -62,7 +59,6 @@ for (const scenario of scenarios) {
      retry: 20,
    })
    await mockOpenCodeServer(page, {
-      protocol: "v2",
      directory,
      project: project(),
      provider: {
@@ -158,23 +154,15 @@ for (const scenario of scenarios) {
    await expectSessionTitle(page, title)
    await expect(page.locator(`[data-timeline-part-id="${lastPartID}"]`)).toBeVisible()
    await expect(page.locator(`[data-timeline-part-id="${userPartID}"]`)).toBeVisible()
-    const viewport = page.locator(".scroll-view__viewport", { has: page.locator("[data-timeline-row]") })
-    await viewport.hover()
-    const deadline = Date.now() + 10_000
-    while (requests.filter((request) => request.phase === "start").length < 2) {
-      if (Date.now() >= deadline) throw new Error("Timed out scrolling to the history boundary")
-      await page.mouse.wheel(0, -240)
-      await page.waitForTimeout(20)
-    }
+    await expect.poll(() => requests.filter((request) => request.phase === "start").length).toBe(2)
    expect(requests.filter((request) => request.phase === "end")).toHaveLength(1)
-    expect(sequence.slice(0, 3)).toEqual([
+    expect(sequence.slice(0, 4)).toEqual([
      "messages:start:latest",
      "messages:end:latest",
+      `message:${userID}`,
      `messages:start:${messages.at(-initialPageSize)!.info.id}`,
    ])
-    await expect(page.locator('[data-timeline-part-id*="_history_root_assistant:text:0"]')).toHaveCount(
-      initialPageSize / 2,
-    )
+    await expect(page.locator('[data-timeline-part-id^="prt_history_root_"]')).toHaveCount(initialPageSize)
    await page.evaluate(() => {
      ;(
        window as Window & {
@@ -186,9 +174,7 @@ for (const scenario of scenarios) {
    expect(await visibleContentHidden(page)).toBe(false)
    const beforeHistory = await probeSamples(page)
    history.resolve()
-    await expect
-      .poll(() => page.locator('[data-timeline-part-id*="_history_root_assistant:text:0"]').count())
-      .toBeGreaterThan(initialPageSize / 2)
+    await expect(page.locator('[data-timeline-part-id^="prt_history_root_"]')).toHaveCount(assistants.length)
    await expect.poll(() => requests.filter((request) => request.phase === "end").length).toBe(2)
    await expect(page.getByRole("button", { name: "Stop" })).toBeVisible()
    await waitForProbeSamples(page, beforeHistory)
@@ -196,7 +182,7 @@ for (const scenario of scenarios) {
      { before: undefined, limit: initialPageSize },
      { before: messages.at(-initialPageSize)!.info.id, limit: historyPageSize },
    ])
-    expect(roots).toEqual([])
+    expect(roots).toEqual([{ sessionID, messageID: userID }])

    const message = messageUpdated(scenario.info)
    const idle = status("idle")
@@ -103,7 +103,7 @@ test("moves busy through retry and recovery to final idle content", async ({ pag
  await timeline.send(status("idle"), 350)
  await expect(page.locator('[data-timeline-row="Retry"]')).toHaveCount(0)
  await expect(page.locator('[data-timeline-row="Thinking"]')).toHaveCount(0)
-  await expect(page.locator('[data-timeline-part-id="prt_recovered"]')).toContainText("Recovered response")
+  await expect(page.locator('[data-timeline-row="DiffSummary"]')).toBeVisible()
 })

 function lines(count: number) {
@@ -89,6 +89,7 @@ test.describe("session timeline projection", () => {
    const aborted = assistantMessage(
      [
        { id: "prt_before_abort", type: "text", text: "Before interruption" },
+        { id: "prt_compaction", type: "compaction", auto: true },
      ],
      {
        id: "msg_1001_assistant_aborted",
@@ -121,13 +122,13 @@ test.describe("session timeline projection", () => {
    await scroller.evaluate((element) => (element.scrollTop = 0))

    await expect(page.locator('[data-timeline-row="TurnDivider"]')).toHaveCount(1)
-    await expect(page.getByText("Before interruption", { exact: true })).toBeVisible()
+    await expect(page.getByText("Session compacted", { exact: true })).toBeVisible()
    await expect(page.getByText("Visible provider failure")).toBeVisible()
    await scroller.evaluate((element) => (element.scrollTop = element.scrollHeight))
    await expect(page.locator('[data-timeline-row="TurnGap"]')).toBeVisible()
  })

-  test("renders legacy synthetic comments as ordinary V2 user text", async ({ page }) => {
+  test("renders comment strips and historical diff summary overflow", async ({ page }) => {
    const user = userMessage(
      [
        userText("The user made the following comment regarding lines 4 through 8 of src/a.ts: Keep this stable", {
@@ -158,14 +159,10 @@ test.describe("session timeline projection", () => {
    const scroller = page.locator(".scroll-view__viewport", { has: page.locator("[data-timeline-row]") })
    await scroller.evaluate((element) => (element.scrollTop = 0))

-    await expect(
-      page.getByText(
-        "The user made the following comment regarding lines 4 through 8 of src/a.ts: Keep this stable Continue after the comment",
-        { exact: true },
-      ),
-    ).toBeVisible()
-    await expect(page.locator('[data-timeline-row="CommentStrip"]')).toHaveCount(0)
-    await expect(page.locator('[data-timeline-row="DiffSummary"]')).toHaveCount(0)
+    await expect(page.locator('[data-timeline-row="CommentStrip"]')).toBeVisible()
+    await expect(page.getByText("Keep this stable", { exact: true })).toBeVisible()
+    await expect(page.locator('[data-timeline-row="DiffSummary"]')).toBeVisible()
+    await expect(page.getByText(/show all/i)).toBeVisible()
  })

  test("renders interruption independently when the turn is not compacted", async ({ page }) => {
@@ -1,6 +1,5 @@
 import { expect, test } from "@playwright/test"
 import {
-  assistantID,
  assistantMessage,
  reasoningPart,
  setupTimeline,
@@ -71,7 +70,7 @@ for (const profile of profiles) {
    await timeline.send(status("busy"), 150)

    await expect(page.locator('[data-timeline-row="Thinking"]')).toHaveCount(profile.thinking ? 1 : 0)
-    await expect(page.locator(`[data-timeline-part-id="${assistantID}:reasoning:0"]`)).toHaveCount(profile.body ? 1 : 0)
+    await expect(page.locator(`[data-timeline-part-id="${reasoningID}"]`)).toHaveCount(profile.body ? 1 : 0)
    if (!profile.summaries && profile.reasoning.trim()) {
      await expect(page.getByText("Inspecting stability", { exact: true })).toBeVisible()
    }
@@ -90,5 +89,5 @@ test("does not infer reasoning visibility from provider identity", async ({ page

  await expect(page.locator('[data-timeline-row="Thinking"]')).toHaveCount(0)
  await expect(page.locator('[data-timeline-part-id*="reasoning"]')).toHaveCount(0)
-  await expect(page.locator(`[data-timeline-part-id="${assistantID}:text:0"]`)).toBeVisible()
+  await expect(page.locator('[data-timeline-part-id="prt_provider_text"]')).toBeVisible()
 })
@@ -23,11 +23,10 @@ test("groups singleton and separated context operations at correct boundaries",
  ]
  await setupTimeline(page, { messages: [userMessage(), assistantMessage(parts)] })

-  await expect(
-    page.locator('[data-timeline-part-ids="prt_boundary_01_read,prt_boundary_03_glob,prt_boundary_04_grep"]'),
-  ).toBeVisible()
+  await expect(page.locator('[data-timeline-part-ids="prt_boundary_01_read"]')).toBeVisible()
+  await expect(page.locator('[data-timeline-part-ids="prt_boundary_03_glob,prt_boundary_04_grep"]')).toBeVisible()
  await expect(page.locator('[data-timeline-part-ids="prt_boundary_06_list"]')).toBeVisible()
-  await expect(page.locator('[data-timeline-row="AssistantPart"]')).toHaveCount(4)
+  await expect(page.locator('[data-timeline-row="AssistantPart"]')).toHaveCount(5)
 })

 test("reducer-hardening: converges when idle arrives before final part and message completion", async ({ page }) => {
@@ -145,6 +145,7 @@ test("allows paint rounding for every framed row but not fixed turn gaps", async
      }),
    ],
  })
+  await expect(page.locator('[data-timeline-row="DiffSummary"]')).toBeVisible()
  await expect(page.locator('[data-timeline-row="TurnGap"]')).toBeVisible()

  const rows = await page.locator("[data-timeline-key]").evaluateAll((elements) =>
@@ -90,7 +90,7 @@ test("reconnects after a stream error", async ({ page }) => {
 })

 test("does not request replay when reconnecting the volatile V2 event stream", async ({ page }) => {
-  const timeline = await setupTimeline(page, { eventRetry: 10 })
+  const timeline = await setupTimeline(page, { eventRetry: 10, protocol: "v2" })
  const first = await timeline.transport.send(partUpdated(textPart("prt_transport_id", "event with id")), {
    id: "timeline-event-7",
  })
@@ -107,10 +107,10 @@ test("passes through non-event fetches", async ({ page }) => {
  const timeline = await setupTimeline(page)

  const health = await page.evaluate(async () => {
-    const response = await fetch("/api/health")
+    const response = await fetch("/global/health")
    return response.json()
  })

-  expect(health).toEqual({ healthy: true, version: "2.0.0", pid: 1 })
+  expect(health).toEqual({ healthy: true })
  expect(await timeline.transport.connections()).toHaveLength(1)
 })
@@ -23,7 +23,7 @@ type EventPayload = {

 test.use({ viewport: { width: 1440, height: 900 }, reducedMotion: "no-preference" })

-test("animates todo opening without replaying it across session tabs", async ({ page }) => {
+test("animates todo lifecycle without replaying it across session tabs", async ({ page }) => {
  test.setTimeout(90_000)
  const events: EventPayload[] = []
  const todos: Record<string, typeof activeTodos> = { [sourceID]: [], [otherID]: [] }
@@ -86,8 +86,28 @@ test("animates todo opening without replaying it across session tabs", async ({
  await switchSession(page, otherID, otherTitle)
  await expect(dock).toHaveCount(0)

+  const returningOpen = sampleDock(page, 700)
+  await switchSession(page, sourceID, sourceTitle)
+  const openSamples = (await returningOpen).filter((sample) => sample.present)
+  expect(openSamples.length).toBeGreaterThan(0)
+  expect(openSamples[0]!.opacity).toBeGreaterThan(0.98)
+  expect(openSamples[0]!.height).toBeGreaterThan(70)
+  await expect(dock.locator('[data-state="in_progress"]')).toHaveCount(1)
+
+  const completedTodos = activeTodos.map((todo) => ({ ...todo, status: "completed" }))
+  const closing = sampleDock(page, 1_000)
+  todos[sourceID] = completedTodos
+  events.push(todoEvent(sourceID, completedTodos))
+  await expect(dock).toHaveCount(0)
+  expect((await closing).some((sample) => sample.opacity > 0.05 && sample.opacity < 0.95)).toBe(true)
+  todos[sourceID] = []
+  events.push(todoEvent(sourceID, []))
+
+  await switchSession(page, otherID, otherTitle)
+  const returningEmpty = sampleDock(page, 700)
  await switchSession(page, sourceID, sourceTitle)
  await expect(dock).toHaveCount(0)
+  expect((await returningEmpty).every((sample) => !sample.present)).toBe(true)
 })

 function session(id: string, title: string, created: number) {
@@ -89,19 +89,23 @@ async function mockServer(page: Page) {
    if (url.origin !== server) return route.fallback()
    if ([`/api/session/${unresolvedSessionID}`, `/session/${unresolvedSessionID}`].includes(url.pathname))
      return new Promise(() => {})
-    if (url.pathname === "/api/event")
+    if (url.pathname === "/global/event" || url.pathname === "/event" || url.pathname === "/api/event")
      return sse(route)
+    if (url.pathname === "/global/health") return json(route, { healthy: true })
    if (url.pathname === "/api/session") return json(route, { data: sessions.map(currentSession), cursor: {} })
    if (url.pathname === "/api/session/active") return json(route, { data: {} })
    const currentSessionInfo = sessions.find((item) => url.pathname === `/api/session/${item.id}`)
    if (currentSessionInfo) return json(route, { data: currentSession(currentSessionInfo) })
    if (sessions.some((item) => url.pathname === `/api/session/${item.id}/message`))
      return json(route, { data: [], cursor: {} })
+    const byId = sessions.find((item) => url.pathname === `/session/${item.id}`)
+    if (byId) return json(route, byId)
    if (/^\/session\/[^/]+$/.test(url.pathname)) return json(route, { name: "NotFoundError" }, 404)
    if (/^\/session\/[^/]+\/message$/.test(url.pathname)) return json(route, [])
    if (/^\/session\/[^/]+\/(children|todo|diff)$/.test(url.pathname)) return json(route, [])
    if (["/skill", "/command", "/lsp", "/formatter", "/permission", "/question", "/vcs/diff"].includes(url.pathname))
      return json(route, [])
+    if (["/global/config", "/config", "/provider/auth", "/mcp"].includes(url.pathname)) return json(route, {})
    if (url.pathname === "/provider")
      return json(route, { all: [], connected: [], default: { providerID: "", modelID: "" } })
    if (url.pathname === "/agent") return json(route, [{ name: "build", mode: "primary" }])
@@ -10,6 +10,7 @@ const title = "Hidden terminal regression"
 test("unmounts the terminal panel while it is hidden", async ({ page }) => {
  await page.setViewportSize({ width: 1400, height: 900 })
  await mockOpenCodeServer(page, {
+    protocol: "v2",
    directory,
    project: {
      id: projectID,
@@ -66,6 +66,7 @@ async function readProbe(page: Page) {

 async function setup(page: Page) {
  await mockOpenCodeServer(page, {
+    protocol: "v2",
    directory,
    project: {
      id: projectID,
@@ -21,7 +21,7 @@ const words = [
  "vector",
 ]

-const serverKey = `http://127.0.0.1:${process.env.PLAYWRIGHT_SERVER_PORT ?? "4096"}`
+const serverKey = "http://127.0.0.1:4096"
 const sourceID = "ses_smoke_source"
 const targetID = "ses_smoke_target"
 const directory = "C:/OpenCode/SmokeProject"
@@ -134,7 +134,7 @@ function toolPart(
  return {
    id: id(`prt_tool_${tool}_${partIndex}`, index),
    type: "tool",
-    callID: id("call", index * 100 + partIndex),
+    callID: id("call", index * 10 + partIndex),
    tool,
    state: {
      status: "completed",
@@ -235,17 +235,8 @@ function renderable(part: MessagePart) {
  return part.type !== "step-start" && part.type !== "step-finish" && part.type !== "patch"
 }

-function currentPartIDs(message: Message) {
-  const ordinals = { text: 0, reasoning: 0 }
-  return message.parts
-    .flatMap((part) => {
-      if (!renderable(part)) return []
-      if (part.type === "text") return [`${message.info.id}:text:${ordinals.text++}`]
-      if (part.type === "reasoning") return [`${message.info.id}:reasoning:${ordinals.reasoning++}`]
-      if (part.type === "tool") return [typeof part.callID === "string" ? part.callID : part.id]
-      return []
-    })
-    .sort()
+function orderedParts(message: Message) {
+  return message.parts.slice().sort((a, b) => a.id.localeCompare(b.id))
 }

 export const fixture = {
@@ -299,10 +290,12 @@ export const fixture = {
    targetMessageIDs: targetMessages
      .filter((message) => message.info.role === "user")
      .map((message) => message.info.id),
-    targetPartIDs: targetMessages.flatMap(currentPartIDs),
-    expandedShellPartID: targetMessages
-      .flatMap((message) => message.parts)
-      .find((part) => part.tool === "bash")!.callID,
+    targetPartIDs: targetMessages.flatMap((message) =>
+      orderedParts(message)
+        .filter(renderable)
+        .map((part) => part.id),
+    ),
+    expandedShellPartID: targetMessages.flatMap((message) => message.parts).find((part) => part.tool === "bash")!.id,
  },
 }

@@ -33,7 +33,6 @@ test.describe("smoke: session timeline", () => {
  test("keeps the visible message fixed while prepending history", async ({ page }) => {
    const requests: { before?: string; phase: "start" | "end"; at: number }[] = []
    await mockOpenCodeServer(page, {
-      protocol: "v2",
      sessions: fixture.sessions,
      provider: fixture.provider,
      directory: fixture.directory,
@@ -92,7 +91,6 @@ test.describe("smoke: session timeline", () => {

  test("preserves the timeline gap above the composer", async ({ page }) => {
    await mockOpenCodeServer(page, {
-      protocol: "v2",
      sessions: fixture.sessions,
      provider: fixture.provider,
      directory: fixture.directory,
@@ -119,7 +117,6 @@ test.describe("smoke: session timeline", () => {

  test("paints cached session tabs at the latest message", async ({ page }) => {
    await mockOpenCodeServer(page, {
-      protocol: "v2",
      sessions: fixture.sessions,
      provider: fixture.provider,
      directory: fixture.directory,
@@ -128,19 +125,20 @@ test.describe("smoke: session timeline", () => {
    })
    await configureSmokePage(page, fixture.directory)
    await page.addInitScript(
-      ({ server, sourceID, targetID }) => {
+      ({ dirBase64, sourceID, targetID }) => {
        localStorage.setItem(
          "opencode.window.browser.dat:tabs",
          JSON.stringify(
            [sourceID, targetID].map((sessionId) => ({
              type: "session",
-              server,
+              server: "http://127.0.0.1:4096",
+              dirBase64,
              sessionId,
            })),
          ),
        )
      },
-      { server: fixture.serverKey, sourceID: fixture.sourceID, targetID: fixture.targetID },
+      { dirBase64: base64Encode(fixture.directory), sourceID: fixture.sourceID, targetID: fixture.targetID },
    )

    await page.goto(`/${base64Encode(fixture.directory)}/session/${fixture.targetID}`)
@@ -245,7 +243,6 @@ test.describe("smoke: session timeline", () => {

  test("paints a cold session tab at the latest message", async ({ page }) => {
    await mockOpenCodeServer(page, {
-      protocol: "v2",
      sessions: fixture.sessions,
      provider: fixture.provider,
      directory: fixture.directory,
@@ -254,19 +251,20 @@ test.describe("smoke: session timeline", () => {
    })
    await configureSmokePage(page, fixture.directory)
    await page.addInitScript(
-      ({ server, sourceID, targetID }) => {
+      ({ dirBase64, sourceID, targetID }) => {
        localStorage.setItem(
          "opencode.window.browser.dat:tabs",
          JSON.stringify(
            [sourceID, targetID].map((sessionId) => ({
              type: "session",
-              server,
+              server: "http://127.0.0.1:4096",
+              dirBase64,
              sessionId,
            })),
          ),
        )
      },
-      { server: fixture.serverKey, sourceID: fixture.sourceID, targetID: fixture.targetID },
+      { dirBase64: base64Encode(fixture.directory), sourceID: fixture.sourceID, targetID: fixture.targetID },
    )
    await page.goto(`/${base64Encode(fixture.directory)}/session/${fixture.sourceID}`)
    await expectSessionTitle(page, fixture.expected.sourceTitle)
@@ -324,7 +322,6 @@ test.describe("smoke: session timeline", () => {
  test("renders seeded timeline in order while paging through history", async ({ page }) => {
    const errors = trackPageErrors(page)
    await mockOpenCodeServer(page, {
-      protocol: "v2",
      sessions: fixture.sessions,
      provider: fixture.provider,
      directory: fixture.directory,
@@ -12,7 +12,6 @@
    "./performance/unit/visual-stability.test.ts",
    "./reproduction/timeline-suspense/**/*.ts",
    "./reproduction/timeline-suspense/**/*.tsx",
-    "../src/types.ts",
    "../src/pages/session/timeline/observe-element-offset.ts",
    "./regression/new-session-panel-corner.spec.ts",
    "./regression/session-timeline-context-resize.spec.ts",
@@ -4,9 +4,12 @@ import { expectAppVisible } from "../utils/waits"

 const directory = "C:/OpenCode/NewProject"

-test("creates a session in a new project and selects its model", async ({ page }) => {
+test("creates a session in a new project, connects OpenCode Go, and selects its model", async ({ page }) => {
+  let connectedGo = false
+  let pendingGo = false
+  const connections: Array<{ integrationID: string; body: unknown }> = []
+
  await mockOpenCodeServer(page, {
-    protocol: "v2",
    directory,
    project: {
      id: "proj_model_selection_flow",
@@ -43,9 +46,17 @@ test("creates a session in a new project and selects its model", async ({ page }
          },
        },
      ],
-      connected: ["opencode", "opencode-go"],
+      connected: connectedGo ? ["opencode", "opencode-go"] : ["opencode"],
      default: { providerID: "opencode", modelID: "free-model" },
    }),
+    integrationMethods: { "opencode-go": [{ type: "api", label: "API key" }] },
+    onConnectKey: (input) => {
+      connections.push(input)
+      if (input.integrationID === "opencode-go") pendingGo = true
+    },
+    onInstanceDispose: () => {
+      if (pendingGo) connectedGo = true
+    },
    sessions: [],
    pageMessages: () => ({ items: [] }),
    fileList: (path) =>
@@ -55,17 +66,6 @@ test("creates a session in a new project and selects its model", async ({ page }
  await page.addInitScript(() => {
    localStorage.setItem("settings.v3", JSON.stringify({ general: { newLayoutDesigns: true } }))
    localStorage.setItem("opencode.global.dat:server", JSON.stringify({ projects: { local: [] } }))
-    localStorage.setItem(
-      "opencode.global.dat:model",
-      JSON.stringify({
-        user: [
-          { providerID: "opencode", modelID: "free-model", visibility: "show" },
-          { providerID: "opencode-go", modelID: "go-model-1", visibility: "show" },
-        ],
-        recent: [],
-        variant: {},
-      }),
-    )
  })

  await page.goto("/")
@@ -79,7 +79,16 @@ test("creates a session in a new project and selects its model", async ({ page }

  const modelControl = page.locator('[data-action="prompt-model"]')
  await modelControl.click()
-  await expect(page.locator('[data-option-key="opencode:free-model"]')).toBeVisible()
+  await expect(page.locator('[data-section="free-models"]')).toContainText("Free models provided by OpenCode")
+
+  await page.locator('[data-provider-id="opencode-go"]').click()
+  await page.locator('[data-input="provider-api-key"]').fill("mock-go-api-key")
+  await page.locator('[data-action="provider-connect-submit"]').click()
+  await expect(page.locator('[data-component="dialog-v2"]')).toHaveCount(0)
+  expect(connections).toEqual([{ integrationID: "opencode-go", body: { type: "api", key: "mock-go-api-key" } }])
+
+  await expect(modelControl).toHaveAttribute("data-control-type", "popover")
+  await modelControl.click()
  const goModel = page.locator('[data-option-key="opencode-go:go-model-1"]')
  await expect(goModel).toBeVisible()
  await goModel.click()
@@ -1,12 +1,4 @@
 import type { Page, Route } from "@playwright/test"
-import type {
-  JsonValue,
-  PromptAgentAttachment,
-  PromptFileAttachment,
-  SessionMessageAssistant,
-  SessionMessageInfo,
-  SessionStructuredError,
-} from "@opencode-ai/client/promise"

 const emptyList = new Set(["/skill", "/command", "/lsp", "/formatter", "/vcs/status", "/vcs/diff"])
 const emptyObject = new Set(["/global/config", "/config", "/provider/auth", "/mcp", "/experimental/resource"])
@@ -55,6 +47,7 @@ export async function mockOpenCodeServer(page: Page, config: MockServerConfig) {
    "/vcs": { branch: "main", default_branch: "main" },
    "/session": config.sessions,
  }
+
  await page.route("**/*", async (route) => {
    const url = new URL(route.request().url())
    const targetPort = process.env.PLAYWRIGHT_SERVER_PORT ?? "4096"
@@ -81,9 +74,11 @@ export async function mockOpenCodeServer(page: Page, config: MockServerConfig) {
    }
    if (path === "/global/health")
      return config.protocol === "v2" ? json(route, {}, undefined, 404) : json(route, { healthy: true })
-    if (path === "/api/health") return json(route, { healthy: true, version: "2.0.0", pid: 1 })
+    if (path === "/api/health" && config.protocol === "v2")
+      return json(route, { healthy: true, version: "2.0.0", pid: 1 })
    if (path === "/experimental/capabilities") return json(route, { backgroundSubagents: true })
-    if (path === "/provider") return json(route, providerConfig(config))
+    if (path === "/provider")
+      return json(route, typeof config.provider === "function" ? config.provider() : config.provider)
    if (path === "/provider/auth") return json(route, config.integrationMethods ?? {})
    const legacyAuth = path.match(/^\/auth\/([^/]+)$/)?.[1]
    if (legacyAuth && route.request().method() === "PUT") {
@@ -139,17 +134,7 @@ export async function mockOpenCodeServer(page: Page, config: MockServerConfig) {
          },
        ],
      })
-    if (path === "/api/provider")
-      return json(route, {
-        location: location(config),
-        data: currentProviders(providerConfig(config)),
-      })
-    if (path === "/api/model") return json(route, { location: location(config), data: currentModels(providerConfig(config)) })
-    if (path === "/api/model/default")
-      return json(route, { location: location(config), data: currentDefaultModel(providerConfig(config)) })
-    if (path === "/api/integration") return json(route, { location: location(config), data: [] })
    if (path === "/api/command") return json(route, { location: location(config), data: [] })
-    if (path === "/api/plugin") return json(route, { location: location(config), data: [] })
    if (path === "/api/mcp") return json(route, { location: location(config), data: [] })
    if (path === "/api/mcp/resource")
      return json(route, { location: location(config), data: { resources: [], templates: [] } })
@@ -157,31 +142,25 @@ export async function mockOpenCodeServer(page: Page, config: MockServerConfig) {
    if (integration && route.request().method() === "GET")
      return json(route, {
        location: location(config),
-        data: {
-          id: integration,
-          name: integration,
-          methods: config.integrationMethods?.[integration] ?? [{ type: "key", label: "API key" }],
-          connections: [],
-        },
+        data: { id: integration, name: integration, methods: [{ type: "key", label: "API key" }], connections: [] },
      })
    const integrationConnect = path.match(/^\/api\/integration\/([^/]+)\/connect\/key$/)?.[1]
    if (integrationConnect && route.request().method() === "POST") {
      config.onConnectKey?.({ integrationID: integrationConnect, body: route.request().postDataJSON() })
      return route.fulfill({ status: 204, headers: { "access-control-allow-origin": "*" } })
    }
-    if (/^\/api\/credential\/[^/]+$/.test(path) && route.request().method() === "DELETE")
-      return route.fulfill({ status: 204, headers: { "access-control-allow-origin": "*" } })
    if (path === "/api/project") return json(route, [config.project])
    if (path === "/api/project/current")
      return json(route, { id: (config.project as { id?: string }).id, directory: config.directory })
-    if (path === "/api/location") return json(route, location(config))
-    const projectCopy = path.match(/^\/experimental\/project\/([^/]+)\/copy$/)?.[1]
-    if (projectCopy && route.request().method() === "POST") {
-      const input = route.request().postDataJSON() as { directory: string; name?: string }
-      return json(route, { directory: `${input.directory}/${input.name ?? "copy"}` })
-    }
-    if (projectCopy && route.request().method() === "DELETE")
-      return route.fulfill({ status: 204, headers: { "access-control-allow-origin": "*" } })
+    if (path.startsWith("/api/project/") && route.request().method() === "PATCH") return json(route, config.project)
+    if (path === "/api/path")
+      return json(route, {
+        state: config.directory,
+        config: config.directory,
+        worktree: config.directory,
+        directory: config.directory,
+        home: "C:/OpenCode",
+      })
    if (path === "/api/permission/request")
      return json(route, {
        location: location(config),
@@ -198,43 +177,11 @@ export async function mockOpenCodeServer(page: Page, config: MockServerConfig) {
      return json(route, { location: location(config), data: { branch: "main", defaultBranch: "main" } })
    if (path === "/api/vcs/status") return json(route, { location: location(config), data: [] })
    if (path === "/api/vcs/diff") return json(route, { location: location(config), data: config.vcsDiff ?? [] })
-    if (path === "/api/fs/list" && config.fileList)
-      return json(route, {
-        location: location(config),
-        data: await config.fileList(url.searchParams.get("path") ?? ""),
-      })
-    const fileRead = path.match(/^\/api\/fs\/read\/(.+)$/)?.[1]
-    if (fileRead && config.fileContent) {
-      const value = await config.fileContent(decodeURIComponent(fileRead))
-      const content = value && typeof value === "object" && "content" in value ? String(value.content) : String(value ?? "")
-      return route.fulfill({ status: 200, body: content, headers: { "content-type": "application/octet-stream" } })
-    }
-    if (path === "/api/fs/find" && config.findFiles) {
-      const entries = await config.findFiles({
-        query: url.searchParams.get("query") ?? "",
-        dirs: url.searchParams.get("type") ?? undefined,
-        limit: url.searchParams.has("limit") ? Number(url.searchParams.get("limit")) : undefined,
-      })
-      return json(route, {
-        location: location(config),
-        data: Array.isArray(entries)
-          ? entries.map((entry) =>
-              typeof entry === "string"
-                ? {
-                    name: entry.split(/[\\/]/).at(-1) ?? entry,
-                    path: entry,
-                    absolute: `${config.directory}/${entry}`,
-                    type: "directory",
-                    ignored: false,
-                  }
-                : entry,
-            )
-          : entries,
-      })
-    }
    if (path === "/api/pty/shells") return json(route, { location: location(config), data: [] })
    if (/^\/api\/pty\/[^/]+\/connect-token$/.test(path))
      return json(route, { location: location(config), data: { ticket: "e2e-ticket", expires_in: 60 } })
+    if (emptyObject.has(path)) return json(route, {})
+    if (emptyList.has(path)) return json(route, [])
    if (path === "/api/session") {
      const directory = url.searchParams.get("directory")
      const parentID = url.searchParams.get("parentID")
@@ -261,9 +208,7 @@ export async function mockOpenCodeServer(page: Page, config: MockServerConfig) {
      })
    }
    if (path === "/api/session/active") {
-      const statuses = (
-        typeof config.sessionStatus === "function" ? config.sessionStatus() : (config.sessionStatus ?? {})
-      ) as Record<string, { type?: string }>
+      const statuses = (config.sessionStatus ?? {}) as Record<string, { type?: string }>
      return json(route, {
        data: Object.fromEntries(
          Object.entries(statuses).flatMap(([id, status]) =>
@@ -281,9 +226,12 @@ export async function mockOpenCodeServer(page: Page, config: MockServerConfig) {
    if (/^\/api\/session\/[^/]+\/permission\/[^/]+\/reply$/.test(path) && route.request().method() === "POST") {
      return route.fulfill({ status: 204, headers: { "access-control-allow-origin": "*" } })
    }
-    if (/^\/question\/[^/]+\/(reply|reject)$/.test(path) && route.request().method() === "POST") return json(route, true)
-    if (/^\/session\/[^/]+\/permissions\/[^/]+$/.test(path) && route.request().method() === "POST")
+    if (/^\/question\/[^/]+\/(reply|reject)$/.test(path) && route.request().method() === "POST") {
      return json(route, true)
+    }
+    if (/^\/session\/[^/]+\/permissions\/[^/]+$/.test(path) && route.request().method() === "POST") {
+      return json(route, true)
+    }
    if (
      /^\/api\/session\/[^/]+\/(archive|rename|interrupt|revert\/clear|revert\/commit)$/.test(path) &&
      route.request().method() === "POST"
@@ -293,8 +241,6 @@ export async function mockOpenCodeServer(page: Page, config: MockServerConfig) {
    if (/^\/api\/session\/[^/]+$/.test(path) && route.request().method() === "DELETE") {
      return route.fulfill({ status: 204, headers: { "access-control-allow-origin": "*" } })
    }
-    if (emptyObject.has(path)) return json(route, {})
-    if (emptyList.has(path)) return json(route, [])
    if (path in staticRoutes) return json(route, staticRoutes[path])

    const currentSessionMatch = path.match(/^\/api\/session\/([^/]+)$/)
@@ -306,17 +252,11 @@ export async function mockOpenCodeServer(page: Page, config: MockServerConfig) {
      })
    }

-    const currentMessageMatch = path.match(/^\/api\/session\/([^/]+)\/message\/([^/]+)$/)
-    if (currentMessageMatch) {
-      config.onMessage?.({ sessionID: currentMessageMatch[1]!, messageID: currentMessageMatch[2]! })
-      if (config.messageDelay !== undefined) await new Promise((resolve) => setTimeout(resolve, config.messageDelay))
-      const message = config.message?.(currentMessageMatch[1]!, currentMessageMatch[2]!)
-      if (message === undefined) return json(route, { error: "Message not found" }, undefined, 404)
-      return json(route, { data: currentMessage(message) })
-    }
-
    const sessionMatch = path.match(/^\/session\/([^/]+)$/)
-    if (sessionMatch) return json(route, config.sessions.find((session) => session.id === sessionMatch[1]) ?? {})
+    if (sessionMatch) {
+      const session = config.sessions.find((s) => s.id === sessionMatch[1])
+      return json(route, session ?? {})
+    }

    const projectMatch = path.match(/^\/project\/([^/]+)$/)
    if (projectMatch) return json(route, config.project)
@@ -360,7 +300,8 @@ export async function mockOpenCodeServer(page: Page, config: MockServerConfig) {
      config.onMessages?.({ sessionID: messagesMatch[1], before, phase: "start" })
      await config.beforeMessagesResponse?.({ sessionID: messagesMatch[1]!, before })
      if (config.messageDelay !== undefined) await new Promise((resolve) => setTimeout(resolve, config.messageDelay))
-      const pageData = config.pageMessages(messagesMatch[1], Number(url.searchParams.get("limit") ?? 80), before)
+      const limit = Number(url.searchParams.get("limit") ?? 80)
+      const pageData = config.pageMessages(messagesMatch[1], limit, before)
      config.onMessages?.({ sessionID: messagesMatch[1], before, phase: "end" })
      if (!pageData.cursor) return json(route, pageData.items)
      const cursor = `cursor_${++nextCursor}`
@@ -376,75 +317,10 @@ export async function mockOpenCodeServer(page: Page, config: MockServerConfig) {
 function location(config: MockServerConfig) {
  return {
    directory: config.directory,
-    project: { id: (config.project as { id?: string }).id, directory: config.directory, canonical: config.directory },
+    project: { id: (config.project as { id?: string }).id, directory: config.directory },
  }
 }

-function providerConfig(config: MockServerConfig) {
-  return typeof config.provider === "function" ? config.provider() : config.provider
-}
-
-function currentProviders(value: unknown) {
-  if (!record(value) || !Array.isArray(value.all)) return Array.isArray(value) ? value : []
-  return value.all.filter(record).flatMap((provider) =>
-    typeof provider.id === "string" && typeof provider.name === "string"
-      ? [{ id: provider.id, name: provider.name, package: provider.id }]
-      : [],
-  )
-}
-
-function currentModels(value: unknown) {
-  if (!record(value) || !Array.isArray(value.all)) return []
-  return value.all.filter(record).flatMap((provider) => {
-    if (typeof provider.id !== "string" || !record(provider.models)) return []
-    return Object.values(provider.models)
-      .filter(record)
-      .flatMap((model) => {
-        if (typeof model.id !== "string" || typeof model.name !== "string") return []
-        const limit = record(model.limit) ? model.limit : {}
-        const cost = record(model.cost) ? model.cost : {}
-        return [
-          {
-            id: model.id,
-            modelID: model.id,
-            providerID: provider.id,
-            name: model.name,
-            capabilities: { tools: true, input: ["text"], output: ["text"] },
-            variants: record(model.variants)
-              ? Object.entries(model.variants).map(([id, settings]) => ({
-                  id,
-                  ...(jsonRecord(settings) ? { settings: jsonRecord(settings) } : {}),
-                }))
-              : [],
-            time: { released: Date.now() },
-            cost: [
-              {
-                input: typeof cost.input === "number" ? cost.input : 0,
-                output: typeof cost.output === "number" ? cost.output : 0,
-                cache: { read: 0, write: 0 },
-              },
-            ],
-            status: "active",
-            enabled: true,
-            limit: {
-              context: typeof limit.context === "number" ? limit.context : 200_000,
-              output: typeof limit.output === "number" ? limit.output : 32_000,
-            },
-          },
-        ]
-      })
-  })
-}
-
-function currentDefaultModel(value: unknown) {
-  if (!record(value) || !record(value.default)) return null
-  const selected = value.default
-  const models = currentModels(value)
-  return models.find(
-    (model) => model.providerID === selected.providerID && model.id === selected.modelID,
-  ) ?? null
-}
-
 function currentPermission(value: unknown) {
  const permission = value as Record<string, unknown>
  if (permission.action) return permission
@@ -488,222 +364,63 @@ export function currentSession(session: { id: string } & Record<string, unknown>
  }
 }

-export function currentMessage(value: unknown): SessionMessageInfo {
-  if (isCurrentMessage(value)) return value
-  if (!record(value) || !record(value.info) || !Array.isArray(value.parts)) throw new Error("Invalid message fixture")
-
-  const info = value.info
-  const parts = value.parts.filter(record)
-  if (typeof info.id !== "string" || !record(info.time) || typeof info.time.created !== "number")
-    throw new Error("Invalid legacy message fixture")
-
-  const time = {
-    created: info.time.created,
-    ...(typeof info.time.completed === "number" ? { completed: info.time.completed } : {}),
+function currentMessage(value: unknown) {
+  const item = value as {
+    info: Record<string, unknown> & { id: string; role: "user" | "assistant"; time: { created: number } }
+    parts: Array<Record<string, unknown> & { type: string }>
  }
-  if (info.role === "user") {
+  if (item.info.role === "user") {
    return {
-      id: info.id,
+      id: item.info.id,
      type: "user",
-      time: { created: time.created },
-      text: parts
+      time: item.info.time,
+      text: item.parts
        .flatMap((part) => (part.type === "text" && typeof part.text === "string" ? [part.text] : []))
        .join("\n"),
-      files: parts.flatMap((part) => (part.type === "file" ? legacyFile(part) : [])),
-      agents: parts.flatMap((part) => (part.type === "agent" ? legacyAgent(part) : [])),
    }
  }
-  if (info.role !== "assistant") throw new Error("Invalid legacy message role")
-
  return {
-    id: info.id,
+    id: item.info.id,
    type: "assistant",
-    time,
-    agent: typeof info.agent === "string" ? info.agent : typeof info.mode === "string" ? info.mode : "build",
-    model: {
-      id: typeof info.modelID === "string" ? info.modelID : "model",
-      providerID: typeof info.providerID === "string" ? info.providerID : "provider",
-      ...(typeof info.variant === "string" ? { variant: info.variant } : {}),
-    },
-    content: parts.flatMap((part) => legacyAssistantContent(part, time.created)),
-    ...(typeof info.cost === "number" ? { cost: info.cost } : {}),
-    ...(tokens(info.tokens) ? { tokens: tokens(info.tokens) } : {}),
-    ...(structuredError(info.error) ? { error: structuredError(info.error) } : {}),
-    ...(finish(info.finish) ? { finish: finish(info.finish) } : {}),
-  }
-}
-
-function isCurrentMessage(value: unknown): value is SessionMessageInfo {
-  return record(value) && typeof value.id === "string" && typeof value.type === "string" && !record(value.info)
-}
-
-function legacyFile(part: Record<string, unknown>): PromptFileAttachment[] {
-  if (typeof part.mime !== "string" || typeof part.url !== "string") return []
-  const data = part.url.match(/^data:[^,]*;base64,(.*)$/)?.[1] ?? ""
-  const source = record(part.source) ? part.source : undefined
-  const sourceText = source && record(source.text) ? source.text : undefined
-  const mention = mentionFrom(sourceText)
-  const uri = source?.type === "resource" && typeof source.uri === "string" ? source.uri : part.url
-  return [
-    {
-      data,
-      mime: part.mime,
-      source: part.url.startsWith("data:") ? { type: "inline" } : { type: "uri", uri },
-      ...(typeof part.filename === "string" ? { name: part.filename } : {}),
-      ...(mention ? { mention } : {}),
-    },
-  ]
-}
-
-function legacyAgent(part: Record<string, unknown>): PromptAgentAttachment[] {
-  if (typeof part.name !== "string") return []
-  const mention = mentionFrom(record(part.source) ? part.source : undefined)
-  return [{ name: part.name, ...(mention ? { mention } : {}) }]
-}
-
-function mentionFrom(value: Record<string, unknown> | undefined) {
-  if (
-    !value ||
-    typeof value.value !== "string" ||
-    typeof value.start !== "number" ||
-    typeof value.end !== "number"
-  )
-    return
-  return { text: value.value, start: value.start, end: value.end }
-}
-
-function legacyAssistantContent(
-  part: Record<string, unknown>,
-  created: number,
-): SessionMessageAssistant["content"] {
-  if (part.type === "text" && typeof part.text === "string")
-    return [{ type: "text", text: part.text, ...(jsonRecord(part.metadata) ? { state: jsonRecord(part.metadata) } : {}) }]
-  if (part.type === "reasoning" && typeof part.text === "string") {
-    const time = record(part.time) ? part.time : undefined
-    return [
-      {
-        type: "reasoning",
-        text: part.text,
-        ...(jsonRecord(part.metadata) ? { state: jsonRecord(part.metadata) } : {}),
-        ...(time && typeof time.start === "number"
-          ? {
-              time: {
-                created: time.start,
-                ...(typeof time.end === "number" ? { completed: time.end } : {}),
-              },
-            }
-          : {}),
-      },
-    ]
-  }
-  if (part.type !== "tool" || typeof part.id !== "string" || typeof part.tool !== "string" || !record(part.state))
-    return []
-
-  const state = part.state
-  const time = record(state.time) ? state.time : undefined
-  const toolTime = {
-    created: time && typeof time.start === "number" ? time.start : created,
-    ...(time && typeof time.start === "number" ? { ran: time.start } : {}),
-    ...(time && typeof time.end === "number" ? { completed: time.end } : {}),
-  }
-  const input = jsonRecord(state.input) ?? {}
-  const metadata = jsonRecord(state.metadata)
-  const base = {
-    type: "tool" as const,
-    id: typeof part.callID === "string" ? part.callID : part.id,
-    name: part.tool,
-    time: toolTime,
-    ...(typeof part.executed === "boolean" ? { executed: part.executed } : {}),
-    ...(jsonRecord(part.providerState) ? { providerState: jsonRecord(part.providerState) } : {}),
-    ...(jsonRecord(part.providerResultState) ? { providerResultState: jsonRecord(part.providerResultState) } : {}),
-  }
-  if (state.status === "pending")
-    return [{ ...base, state: { status: "streaming", input: typeof state.raw === "string" ? state.raw : JSON.stringify(input) } }]
-  if (state.status === "completed")
-    return [
-      {
-        ...base,
-        state: {
-          status: "completed",
-          input,
-          content: [{ type: "text", text: typeof state.output === "string" ? state.output : "" }],
-          ...(metadata ? { metadata } : {}),
+    time: item.info.time,
+    agent: item.info.agent ?? "build",
+    model: { id: item.info.modelID ?? "model", providerID: item.info.providerID ?? "provider" },
+    cost: item.info.cost,
+    tokens: item.info.tokens,
+    error: item.info.error,
+    content: item.parts.flatMap<unknown>((part) => {
+      if (part.type === "text" || part.type === "reasoning") return [{ type: part.type, text: part.text ?? "" }]
+      if (part.type !== "tool") return []
+      const state = part.state as Record<string, unknown>
+      return [
+        {
+          type: "tool",
+          id: part.id,
+          name: part.tool,
+          time: state.time ?? { created: item.info.time.created },
+          state:
+            state.status === "pending"
+              ? { status: "streaming", input: state.raw ?? JSON.stringify(state.input ?? {}) }
+              : state.status === "completed"
+                ? {
+                    status: "completed",
+                    input: state.input ?? {},
+                    structured: state.metadata ?? {},
+                    content: [{ type: "text", text: state.output ?? "" }],
+                  }
+                : state.status === "error"
+                  ? {
+                      status: "error",
+                      input: state.input ?? {},
+                      structured: state.metadata ?? {},
+                      content: [],
+                      error: { type: "ToolError", message: state.error ?? "Tool failed" },
+                    }
+                  : { status: "running", input: state.input ?? {}, structured: state.metadata ?? {}, content: [] },
        },
-      },
-    ]
-  if (state.status === "error")
-    return [
-      {
-        ...base,
-        state: {
-          status: "error",
-          input,
-          error: structuredError(state.error) ?? { type: "ToolError", message: "Tool failed" },
-          ...(metadata ? { metadata } : {}),
-        },
-      },
-    ]
-  return [{ ...base, state: { status: "running", input, metadata: metadata ?? {} } }]
-}
-
-function structuredError(value: unknown): SessionStructuredError | undefined {
-  if (typeof value === "string") return { type: "Error", message: value }
-  if (!record(value)) return
-  if (typeof value.type === "string" && typeof value.message === "string")
-    return { type: value.type, message: value.message }
-  if (typeof value.name !== "string" || !record(value.data) || typeof value.data.message !== "string") return
-  return { type: value.name, message: value.data.message }
-}
-
-function tokens(value: unknown): SessionMessageAssistant["tokens"] | undefined {
-  if (!record(value) || !record(value.cache)) return
-  if (
-    typeof value.input !== "number" ||
-    typeof value.output !== "number" ||
-    typeof value.reasoning !== "number" ||
-    typeof value.cache.read !== "number" ||
-    typeof value.cache.write !== "number"
-  )
-    return
-  return {
-    input: value.input,
-    output: value.output,
-    reasoning: value.reasoning,
-    cache: { read: value.cache.read, write: value.cache.write },
-  }
-}
-
-function finish(value: unknown): SessionMessageAssistant["finish"] | undefined {
-  if (
-    value === "stop" ||
-    value === "length" ||
-    value === "tool-calls" ||
-    value === "content-filter" ||
-    value === "error" ||
-    value === "unknown"
-  )
-    return value
-}
-
-function jsonRecord(value: unknown): Record<string, JsonValue> | undefined {
-  if (!record(value)) return
-  return Object.fromEntries(
-    Object.entries(value).flatMap(([key, item]) => {
-      const next = jsonValue(item)
-      return next === undefined ? [] : [[key, next]]
+      ]
    }),
-  )
-}
-
-function jsonValue(value: unknown): JsonValue | undefined {
-  if (value === null || typeof value === "string" || typeof value === "boolean") return value
-  if (typeof value === "number") return Number.isFinite(value) ? value : null
-  if (Array.isArray(value)) return value.map((item) => jsonValue(item) ?? null)
-  return jsonRecord(value)
-}
-
-function record(value: unknown): value is Record<string, unknown> {
-  return !!value && typeof value === "object" && !Array.isArray(value)
+  }
 }

 function json(route: Route, body: unknown, headers?: Record<string, string>, status = 200) {
@@ -3,7 +3,7 @@ import type { Page } from "@playwright/test"
 export type SseConnectionRecord = {
  id: number
  url: string
-  path: "/api/event"
+  path: "/global/event" | "/event" | "/api/event"
  headers: Record<string, string>
  openedAt: number
  endedAt?: number
@@ -174,7 +174,10 @@ export async function installSseTransport<T>(
      const fetch = (input: RequestInfo | URL, init?: RequestInit) => {
        const request = new Request(input, init)
        const url = new URL(request.url)
-        if (url.origin !== server || url.pathname !== "/api/event")
+        if (
+          url.origin !== server ||
+          (url.pathname !== "/global/event" && url.pathname !== "/event" && url.pathname !== "/api/event")
+        )
          return originalFetch(request)

        const id = ++nextConnectionID
@@ -190,9 +193,18 @@ export async function installSseTransport<T>(
            record.controller = controller
            connections.push(record)
            if (retry !== undefined) controller.enqueue(encoder.encode(`retry: ${retry}\n\n`))
-            controller.enqueue(
-              encoder.encode(frame({ id: `evt_mock_connected_${id}`, type: "server.connected", data: {} })),
-            )
+            if (url.pathname === "/api/event")
+              controller.enqueue(
+                encoder.encode(frame({ id: `evt_mock_connected_${id}`, type: "server.connected", data: {} })),
+              )
+            if (url.pathname === "/global/event")
+              controller.enqueue(
+                encoder.encode(
+                  frame({
+                    payload: { id: `evt_mock_connected_${id}`, type: "server.connected", properties: {} },
+                  }),
+                ),
+              )
            request.signal.addEventListener(
              "abort",
              () => {
@@ -56,6 +56,7 @@
    "@opencode-ai/client": "workspace:*",
    "@opencode-ai/core": "workspace:*",
    "@opencode-ai/schema": "workspace:*",
+    "@opencode-ai/sdk": "file:vendor/opencode-ai-sdk-1.18.8-dev.tgz",
    "@opencode-ai/session-ui": "workspace:*",
    "@opencode-ai/ui": "workspace:*",
    "@opencode-ai/util": "workspace:*",
@@ -238,6 +238,26 @@ function UiI18nBridge(props: ParentProps) {
 }

 function LayoutCompatibility(props: ParentProps) {
+  const global = useGlobal()
+  const navigate = useNavigate()
+  const server = useServer()
+  const settings = useSettings()
+
+  createEffect(() => {
+    if (settings.general.newLayoutDesigns()) return
+    const current = server.current
+    if (!current) return
+    const protocol = global.ensureServerCtx(current).sdk.protocolKind()
+    if (protocol !== "v2") return
+    const next = global.servers.list().find((s) => {
+      if (ServerConnection.key(s) === ServerConnection.key(current)) return false
+      return global.ensureServerCtx(s).sdk.protocolKind() !== "v2"
+    })
+    if (!next) return
+    navigate("/")
+    queueMicrotask(() => server.setActive(ServerConnection.key(next)))
+  })
+
  return <>{props.children}</>
 }

@@ -1,5 +1,5 @@
 import { getFilename } from "@opencode-ai/core/util/path"
-import type { Project } from "@/types"
+import type { Project } from "@opencode-ai/sdk/v2/client"
 import type { SessionInfo } from "@opencode-ai/client/promise"
 import { useDialog } from "@opencode-ai/ui/context/dialog"
 import { createMemo, onCleanup } from "solid-js"
@@ -130,9 +130,26 @@ export function CustomProviderForm(props: { autofocus?: boolean } = {}) {
  }

  const saveMutation = useMutation(() => ({
-    mutationFn: async (result: NonNullable<ReturnType<typeof validate>>): Promise<typeof result> => {
-      // TODO: Restore custom providers when V2 exposes config and arbitrary credential APIs.
-      throw new Error(`Custom provider ${result.providerID} is unavailable`)
+    mutationFn: async (result: NonNullable<ReturnType<typeof validate>>) => {
+      if ((await serverSDK().protocol) !== "v1") throw new Error("Custom providers are unavailable on this server")
+      const disabledProviders = serverSync().data.config.disabled_providers ?? []
+      const nextDisabled = disabledProviders.filter((id) => id !== result.providerID)
+
+      if (result.key) {
+        await serverSDK().client.auth.set({
+          providerID: result.providerID,
+          auth: {
+            type: "api",
+            key: result.key,
+          },
+        })
+      }
+
+      await serverSync().updateConfig({
+        provider: { [result.providerID]: result.config },
+        disabled_providers: nextDisabled,
+      })
+      return result
    },
    onSuccess: (result) => {
      dialog.close()
@@ -146,7 +146,7 @@ export function DialogEditProjectV2(props: { project: LocalProject; server: Serv
          <ButtonV2 type="button" variant="neutral" disabled={model.save.isPending} onClick={model.close}>
            {language.t("common.cancel")}
          </ButtonV2>
-          <ButtonV2 type="submit" variant="contrast" disabled={!model.supported || model.save.isPending}>
+          <ButtonV2 type="submit" variant="contrast" disabled={model.save.isPending}>
            {model.save.isPending ? language.t("common.saving") : language.t("common.save")}
          </ButtonV2>
        </DialogFooter>
@@ -160,7 +160,7 @@ export function DialogEditProject(props: { project: LocalProject; server: Server
          <Button type="button" variant="ghost" size="large" onClick={model.close}>
            {language.t("common.cancel")}
          </Button>
-          <Button type="submit" variant="primary" size="large" disabled={!model.supported || model.save.isPending}>
+          <Button type="submit" variant="primary" size="large" disabled={model.save.isPending}>
            {model.save.isPending ? language.t("common.saving") : language.t("common.save")}
          </Button>
        </div>
@@ -8,7 +8,7 @@ import { Dialog } from "@opencode-ai/ui/dialog"
 import { List } from "@opencode-ai/ui/list"
 import { showToast } from "@/utils/toast"
 import { extractPromptFromParts } from "@/utils/prompt"
-import type { TextPart as SDKTextPart } from "@/types"
+import type { TextPart as SDKTextPart } from "@opencode-ai/sdk/v2/client"
 import { base64Encode } from "@opencode-ai/core/util/encode"
 import { useLanguage } from "@/context/language"

@@ -8,7 +8,7 @@ import { createEffect, createMemo, createResource, createSignal, For, onCleanup,
 import { useGlobal } from "@/context/global"
 import { useLanguage } from "@/context/language"
 import { ServerConnection } from "@/context/server"
-import type { Path } from "@/types"
+import type { Path } from "@opencode-ai/sdk/v2/client"
 import {
  absoluteTreePath,
  activeTreeNavigation,
@@ -66,21 +66,16 @@ export function DialogSelectDirectoryV2(props: DialogSelectDirectoryV2Props) {
  let pathArea: HTMLDivElement | undefined
  let navigation = 0

+  const missingBase = createMemo(() => !(sync.data.path.home || sync.data.path.directory))
  const [fallbackPath] = createResource(
-    () => (!(sync.data.path.home || sync.data.path.directory) ? true : undefined),
-    () =>
-      sdk.api.location
+    () => (missingBase() ? true : undefined),
+    async (): Promise<Path | undefined> => {
+      if ((await sdk.protocol) !== "v1") return
+      return sdk.client.path
        .get()
-        .then(
-          (location): Path => ({
-            state: "",
-            config: "",
-            worktree: location.project.directory,
-            directory: location.directory,
-            home: "",
-          }),
-        )
-        .catch(() => undefined),
+        .then((result) => result.data)
+        .catch(() => undefined)
+    },
    { initialValue: undefined },
  )
  const home = createMemo(() => sync.data.path.home || fallbackPath()?.home || "")
@@ -9,7 +9,7 @@ import { useLanguage } from "@/context/language"
 import { ServerConnection } from "@/context/server"
 import { useGlobal } from "@/context/global"
 import { cleanPickerInput, createDirectorySearch, displayPickerPath } from "./directory-picker-domain"
-import type { Path } from "@/types"
+import type { Path } from "@opencode-ai/sdk/v2/client"

 interface DialogSelectDirectoryProps {
  title?: string
@@ -57,21 +57,16 @@ export function DialogSelectDirectory(props: DialogSelectDirectoryProps) {
  const [filter, setFilter] = createSignal("")
  let list: ListRef | undefined

+  const missingBase = createMemo(() => !(sync.data.path.home || sync.data.path.directory))
  const [fallbackPath] = createResource(
-    () => (!(sync.data.path.home || sync.data.path.directory) ? true : undefined),
-    () =>
-      sdk.api.location
+    () => (missingBase() ? true : undefined),
+    async (): Promise<Path | undefined> => {
+      if ((await sdk.protocol) !== "v1") return
+      return sdk.client.path
        .get()
-        .then(
-          (location): Path => ({
-            state: "",
-            config: "",
-            worktree: location.project.directory,
-            directory: location.directory,
-            home: "",
-          }),
-        )
-        .catch(() => undefined),
+        .then((result) => result.data)
+        .catch(() => undefined)
+    },
    { initialValue: undefined },
  )

@@ -16,6 +16,7 @@ import { useGlobal } from "@/context/global"
 import { useLanguage } from "@/context/language"
 import { usePlatform } from "@/context/platform"
 import { normalizeServerUrl, ServerConnection, useServer } from "@/context/server"
+import { detectServerProtocol } from "@/utils/server-protocol"
 import { type ServerHealth, useCheckServerHealth } from "@/utils/server-health"
 import { useSettings } from "@/context/settings"
 import { useTabs } from "@/context/tabs"
@@ -263,6 +264,13 @@ export function useServerManagementController(options: { onSelect?: () => void;
        setStore("addServer", { error: language.t("dialog.server.add.error") })
        return
      }
+      if (
+        !settings.general.newLayoutDesigns() &&
+        (await detectServerProtocol(conn.http, platform.fetch ?? globalThis.fetch)) === "v2"
+      ) {
+        setStore("addServer", { error: language.t("dialog.server.add.error") })
+        return
+      }

      resetAdd()
      if (options.navigateOnAdd === false) {
@@ -307,6 +315,13 @@ export function useServerManagementController(options: { onSelect?: () => void;
        setStore("editServer", { error: language.t("dialog.server.add.error") })
        return
      }
+      if (
+        !settings.general.newLayoutDesigns() &&
+        (await detectServerProtocol(conn.http, platform.fetch ?? globalThis.fetch)) === "v2"
+      ) {
+        setStore("editServer", { error: language.t("dialog.server.add.error") })
+        return
+      }
      if (normalized === input.original.http.url) {
        server.add(conn)
      } else {
@@ -345,7 +360,9 @@ export function useServerManagementController(options: { onSelect?: () => void;

  const sortedItems = createMemo(() => {
    const raw = items()
-    const list = raw
+    const list = settings.general.newLayoutDesigns()
+      ? raw
+      : raw.filter((x) => global.ensureServerCtx(x).sdk.protocolKind() !== "v2")
    if (!list.length) return list
    const active = current()
    const order = new Map(list.map((url, index) => [url, index] as const))
@@ -9,7 +9,6 @@ import { type LocalProject } from "@/context/layout"
 import { ServerConnection } from "@/context/server"

 export function createEditProjectModel(props: { project: LocalProject; server: ServerConnection.Any }) {
-  const supported = !props.project.id || props.project.id === "global"
  const dialog = useDialog()
  const global = useGlobal()
  const serverCtx = createMemo(() => global.ensureServerCtx(props.server))
@@ -72,9 +71,29 @@ export function createEditProjectModel(props: { project: LocalProject; server: S
      const start = store.startup.trim()

      if (props.project.id && props.project.id !== "global") {
-        // TODO: Restore project edits when the V2 client exposes a project update API.
-        // await serverCtx().sdk.api.project.update({ projectID: props.project.id, name, icon, commands })
-        throw new Error(`Project ${props.project.id} cannot be updated`)
+        if ((await serverCtx().sdk.protocol) !== "v1") return
+        const project = await serverCtx()
+          .sdk.client.project.update({
+            projectID: props.project.id,
+            directory: props.project.worktree,
+            name,
+            icon: { color: store.color || "", override: store.iconOverride || "" },
+            commands: { start },
+          })
+          .then((result) => result.data)
+        if (!project) return
+        // const project = await serverCtx().sdk.api.project.update({
+        //   projectID: props.project.id,
+        //   name,
+        //   icon: { color: store.color || "", override: store.iconOverride || "" },
+        //   commands: { start },
+        // })
+        serverCtx().sync.set("project", (items) =>
+          items.map((item) => (item.id === project.id ? normalizeProjectInfo(project) : item)),
+        )
+        serverCtx().sync.project.icon(props.project.worktree, store.iconOverride || undefined)
+        dialog.close()
+        return
      }

      serverCtx().sync.project.meta(props.project.worktree, {
@@ -88,7 +107,7 @@ export function createEditProjectModel(props: { project: LocalProject; server: S

  function submit(event: SubmitEvent) {
    event.preventDefault()
-    if (!supported || save.isPending) return
+    if (save.isPending) return
    save.mutate()
  }

@@ -98,7 +117,6 @@ export function createEditProjectModel(props: { project: LocalProject; server: S
    folderName,
    defaultName,
    save,
-    supported,
    submit,
    drop,
    dragOver,
@@ -1,6 +1,6 @@
 import { describe, expect, test } from "bun:test"
 import { buildFileTreeV2Model, flattenFileTreeV2, flattenLiveFileTreeV2 } from "./file-tree-v2-model"
-import type { FileNode } from "@/types"
+import type { FileNode } from "@opencode-ai/sdk/v2"

 describe("buildFileTreeV2Model", () => {
  test("builds a sorted tree and flattens expanded directories", () => {
@@ -1,4 +1,4 @@
-import type { FileNode } from "@/types"
+import type { FileNode } from "@opencode-ai/sdk/v2"

 export type FileTreeV2Model = {
  children: ReadonlyMap<string, readonly FileTreeV2Node[]>
@@ -12,7 +12,7 @@ import {
  type ParentProps,
 } from "solid-js"
 import { Dynamic } from "solid-js/web"
-import type { FileNode } from "@/types"
+import type { FileNode } from "@opencode-ai/sdk/v2"
 import { Icon } from "@opencode-ai/ui/v2/icon"
 import { pathToFileUrl, withFileDragImage, type Kind } from "@/components/file-tree"
 import { createVirtualizer, defaultRangeExtractor } from "@tanstack/solid-virtual"
@@ -17,7 +17,7 @@ import {
  type ParentProps,
 } from "solid-js"
 import { Dynamic } from "solid-js/web"
-import type { FileNode } from "@/types"
+import type { FileNode } from "@opencode-ai/sdk/v2"

 const MAX_DEPTH = 128

@@ -5,7 +5,7 @@ import { ButtonV2 } from "@opencode-ai/ui/v2/button-v2"
 import { Icon } from "@opencode-ai/ui/v2/icon"
 import { KeybindV2 } from "@opencode-ai/ui/v2/keybind-v2"
 import { TooltipV2 } from "@opencode-ai/ui/v2/tooltip-v2"
-import type { ReferenceInfo } from "@/types"
+import type { ReferenceInfo } from "@opencode-ai/sdk/v2/client"
 import { createEffect, createMemo, on, Show } from "solid-js"
 import { ModelSelectorPopoverV2 } from "@/components/dialog-select-model"
 import { DialogSelectModelUnpaidV2 } from "@/components/dialog-select-model-unpaid-v2"
@@ -1,6 +1,6 @@
 // @ts-nocheck
 import { createStore } from "solid-js/store"
-import type { Todo } from "@/types"
+import type { Todo } from "@opencode-ai/sdk/v2"
 import { createPromptState } from "@/context/prompt"
 import { SessionComposerRegion, createSessionComposerRegionController } from "@/pages/session/composer"
 import { createPromptInputHistory, PromptInput } from "./prompt-input"
@@ -81,7 +81,7 @@ import { promptDesignPlaceholder, promptPlaceholder } from "./prompt-input/place
 import { createPromptInputTransientState } from "./prompt-input/transient-state"
 import { showToast } from "@/utils/toast"
 import { ImagePreview } from "@opencode-ai/ui/image-preview"
-import type { ReferenceInfo } from "@/types"
+import type { ReferenceInfo } from "@opencode-ai/sdk/v2/client"

 export { createPromptInputHistory }
 export type { PromptInputControls, PromptInputHistory, PromptInputProps, PromptInputState, PromptInputSubmission }
@@ -1,5 +1,5 @@
 import { getFilename } from "@opencode-ai/core/util/path"
-import type { AgentPartInput, FilePartInput, Part, TextPartInput } from "@/types"
+import { type AgentPartInput, type FilePartInput, type Part, type TextPartInput } from "@opencode-ai/sdk/v2/client"
 import type { FileSelection } from "@/context/file"
 import { encodeFilePath } from "@/context/file/path"
 import type { AgentPart, FileAttachmentPart, ImageAttachmentPart, Prompt } from "@/context/prompt"
@@ -31,12 +31,6 @@ const promotedDrafts: Array<{ draftID: string; server: string; sessionId: string
 const sentPrompts: string[] = []
 const promptInputs: unknown[] = []
 const sentCommands: unknown[] = []
-const switchedAgents: Array<{ sessionID: string; agent: string }> = []
-const switchedModels: Array<{
-  sessionID: string
-  model: { id: string; providerID: string; variant?: string }
-}> = []
-const sessionRequestOrder: string[] = []
 const commands: Array<{ name: string }> = []
 let serverSessionSyncs = 0

@@ -99,22 +93,10 @@ const clientFor = (directory: string) => {
          }
        },
        prompt: async (input: unknown) => {
-          sessionRequestOrder.push("prompt")
          sentPrompts.push(directory)
          promptInputs.push(input)
          return { data: undefined }
        },
-        switchAgent: async (input: { sessionID: string; agent: string }) => {
-          sessionRequestOrder.push("agent")
-          switchedAgents.push(input)
-        },
-        switchModel: async (input: {
-          sessionID: string
-          model: { id: string; providerID: string; variant?: string }
-        }) => {
-          sessionRequestOrder.push("model")
-          switchedModels.push(input)
-        },
        command: async (input: unknown) => {
          sentCommands.push(input)
        },
@@ -143,6 +125,13 @@ beforeAll(async () => {
    useSearchParams: () => [search, () => undefined],
  }))

+  mock.module("@opencode-ai/sdk/v2/client", () => ({
+    createOpencodeClient: (input: { directory: string }) => {
+      createdClients.push(input.directory)
+      return clientFor(input.directory)
+    },
+  }))
+
  mock.module("@opencode-ai/ui/toast", () => ({
    Toast: { Region: () => null },
    showToast: () => 0,
@@ -208,8 +197,12 @@ beforeAll(async () => {
      const sdk = {
        scope: "local",
        directory: "/repo/main",
+        client: rootClient,
        api: rootClient.api,
        url: "http://localhost:4096",
+        createClient(opts: any) {
+          return clientFor(opts.directory)
+        },
      }
      return () => sdk
    },
@@ -297,9 +290,6 @@ beforeEach(() => {
  sentPrompts.length = 0
  promptInputs.length = 0
  sentCommands.length = 0
-  switchedAgents.length = 0
-  switchedModels.length = 0
-  sessionRequestOrder.length = 0
  commands.length = 0
  promptValue = [{ type: "text", content: "ls", start: 0, end: 2 }]
  params = {}
@@ -342,7 +332,7 @@ describe("prompt submit worktree selection", () => {
    selected = "/repo/worktree-b"
    await submit.handleSubmit(event)

-    expect(createdClients).toEqual([])
+    expect(createdClients).toEqual(["/repo/worktree-a", "/repo/worktree-b"])
    expect(createdSessions).toEqual(["/repo/worktree-a", "/repo/worktree-b"])
    expect(sessionCreateInputs).toEqual([
      {
@@ -457,17 +447,13 @@ describe("prompt submit worktree selection", () => {
    expect(promotedDrafts).toEqual([{ draftID: "draft-1", server: "project-server", sessionId: "session-1" }])
  })

-  test("switches the selected agent and model before prompting", async () => {
+  test("includes the selected variant on optimistic prompts", async () => {
    params = { id: "session-1" }
    variant = "high"

    const submit = createPromptSubmit({
      prompt,
-      info: () => ({
-        id: "session-1",
-        agent: "old-agent",
-        model: { id: "old-model", providerID: "old-provider" },
-      }),
+      info: () => ({ id: "session-1" }),
      imageAttachments: () => [],
      commentCount: () => 0,
      autoAccept: () => false,
@@ -496,14 +482,6 @@ describe("prompt submit worktree selection", () => {
      },
    })
    expect(sentPrompts).toEqual(["/repo/main"])
-    expect(switchedAgents).toEqual([{ sessionID: "session-1", agent: "agent" }])
-    expect(switchedModels).toEqual([
-      {
-        sessionID: "session-1",
-        model: { id: "model", providerID: "provider", variant: "high" },
-      },
-    ])
-    expect(sessionRequestOrder).toEqual(["agent", "model", "prompt"])
    expect(promptInputs[0]).toMatchObject({
      sessionID: "session-1",
      text: "ls",
@@ -511,6 +489,9 @@ describe("prompt submit worktree selection", () => {
      agents: [],
    })
    expect((promptInputs[0] as { id?: string }).id).toStartWith("msg_")
+    expect((promptInputs[0] as { legacyParts?: { id: string; type: string; text?: string }[] }).legacyParts).toEqual([
+      { id: expect.stringMatching(/^prt_/), type: "text", text: "ls" },
+    ])
  })

  test("submits slash commands through the current session API", async () => {
@@ -1,4 +1,4 @@
-import type { Message, Session } from "@/types"
+import type { Message, Session } from "@opencode-ai/sdk/v2/client"
 import { showToast } from "@/utils/toast"
 import { base64Encode } from "@opencode-ai/core/util/encode"
 import { Binary } from "@opencode-ai/core/util/binary"
@@ -15,7 +15,6 @@ import { useSDK, type DirectorySDK } from "@/context/sdk"
 import { useSync, type DirectorySync } from "@/context/sync"
 import { Identifier } from "@/utils/id"
 import { Worktree as WorktreeState } from "@/utils/worktree"
-import { getDirectory } from "@opencode-ai/core/util/path"
 import { buildRequestParts } from "./build-request-parts"
 import { setCursorPosition } from "./editor-dom"
 import { formatServerError } from "@/utils/server-errors"
@@ -45,7 +44,6 @@ type FollowupSendInput = {
  api: DirectorySDK["api"]["session"]
  serverSync: ServerSync
  sync: DirectorySync
-  session: Accessor<{ agent?: string; model?: { id: string; providerID: string; variant?: string } } | undefined>
  draft: FollowupDraft
  messageID?: string
  optimisticBusy?: boolean
@@ -158,28 +156,13 @@ export async function sendFollowupDraft(input: FollowupSendInput) {
      return false
    }

-    const session = input.session()
-    if (session?.agent !== input.draft.agent) {
-      await input.api.switchAgent({ sessionID: input.draft.sessionID, agent: input.draft.agent })
-    }
-    if (
-      session?.model?.providerID !== input.draft.model.providerID ||
-      session.model.id !== input.draft.model.modelID ||
-      (session.model.variant ?? "default") !== (input.draft.variant ?? "default")
-    ) {
-      await input.api.switchModel({
-        sessionID: input.draft.sessionID,
-        model: {
-          id: input.draft.model.modelID,
-          providerID: input.draft.model.providerID,
-          variant: input.draft.variant,
-        },
-      })
-    }
-
    await input.api.prompt({
      sessionID: input.draft.sessionID,
      id: messageID,
+      agent: input.draft.agent,
+      model: input.draft.model,
+      variant: input.draft.variant,
+      legacyParts: requestParts,
      text: requestParts.flatMap((part) => (part.type === "text" ? [part.text] : [])).join("\n"),
      files: requestParts.flatMap((part) => {
        if (part.type !== "file") return []
@@ -217,9 +200,7 @@ export async function sendFollowupDraft(input: FollowupSendInput) {

 type PromptSubmitInput = {
  prompt: ReturnType<typeof usePrompt>
-  info: Accessor<
-    { id: string; agent?: string; model?: { id: string; providerID: string; variant?: string } } | undefined
-  >
+  info: Accessor<{ id: string } | undefined>
  imageAttachments: Accessor<ImageAttachmentPart[]>
  commentCount: Accessor<number>
  autoAccept: Accessor<boolean>
@@ -367,15 +348,13 @@ export function createPromptSubmit(input: PromptSubmitInput) {
    const worktreeSelection = input.newSessionWorktree?.() || "main"

    let sessionDirectory = projectDirectory
+    let client = sdk().client
+
    if (isNewSession) {
      if (worktreeSelection === "create") {
-        const createdWorktree = await sdk()
-          .api.projectCopy.create({
-            projectID: sync().data.project,
-            strategy: "git_worktree",
-            directory: getDirectory(projectDirectory),
-            location: { directory: projectDirectory },
-          })
+        const createdWorktree = await client.worktree
+          .create({ directory: projectDirectory })
+          .then((x) => x.data)
          .catch((err) => {
            showToast({
              title: language.t("prompt.toast.worktreeCreateFailed.title"),
@@ -383,7 +362,14 @@ export function createPromptSubmit(input: PromptSubmitInput) {
            })
            return undefined
          })
-        if (!createdWorktree) return
+
+        if (!createdWorktree?.directory) {
+          showToast({
+            title: language.t("prompt.toast.worktreeCreateFailed.title"),
+            description: language.t("common.requestFailed"),
+          })
+          return
+        }
        WorktreeState.pending(sdk().scope, createdWorktree.directory)
        sessionDirectory = createdWorktree.directory
      }
@@ -393,6 +379,10 @@ export function createPromptSubmit(input: PromptSubmitInput) {
      }

      if (sessionDirectory !== projectDirectory) {
+        client = sdk().createClient({
+          directory: sessionDirectory,
+          throwOnError: true,
+        })
        serverSync().child(sessionDirectory)
      }

@@ -497,6 +487,8 @@ export function createPromptSubmit(input: PromptSubmitInput) {
          sessionID: session.id,
          id: eventID,
          command: text,
+          agent,
+          model,
        })
        .catch((err) => {
          showToast({
@@ -617,7 +609,6 @@ export function createPromptSubmit(input: PromptSubmitInput) {
      api: sdk().api.session,
      sync: sync(),
      serverSync: serverSync(),
-      session: () => input.info() ?? session,
      draft,
      messageID,
      optimisticBusy: sessionDirectory === projectDirectory,
@@ -1,5 +1,5 @@
 import { describe, expect, test } from "bun:test"
-import type { Message, Part } from "@/types"
+import type { Message, Part } from "@opencode-ai/sdk/v2/client"
 import { estimateSessionContextBreakdown } from "./session-context-breakdown"

 const user = (id: string) => {
@@ -1,4 +1,4 @@
-import type { Message, Part } from "@/types"
+import type { Message, Part } from "@opencode-ai/sdk/v2/client"

 export type SessionContextBreakdownKey = "system" | "user" | "assistant" | "tool" | "other"

@@ -1,5 +1,5 @@
 import { describe, expect, test } from "bun:test"
-import type { Message } from "@/types"
+import type { Message } from "@opencode-ai/sdk/v2/client"
 import { getSessionContext } from "./session-context-metrics"

 const assistant = (
@@ -1,4 +1,4 @@
-import type { AssistantMessage, Message } from "@/types"
+import type { AssistantMessage, Message } from "@opencode-ai/sdk/v2/client"

 type Provider = {
  id: string
@@ -10,7 +10,7 @@ import { StickyAccordionHeader } from "@opencode-ai/ui/sticky-accordion-header"
 import { File } from "@opencode-ai/session-ui/file"
 import { Markdown } from "@opencode-ai/session-ui/markdown"
 import { ScrollView } from "@opencode-ai/ui/scroll-view"
-import type { Message, Part, UserMessage } from "@/types"
+import type { Message, Part, UserMessage } from "@opencode-ai/sdk/v2/client"
 import { useLanguage } from "@/context/language"
 import { useProviders } from "@/hooks/use-providers"
 import { useSDK } from "@/context/sdk"
@@ -128,7 +128,11 @@ export const SettingsGeneral: Component = () => {

  const [shells] = createResource(
    async () => {
-      // TODO: Restore executable shell discovery; V2 shell.list only lists shell processes.
+      const sdk = serverSdk()
+      if ((await sdk.protocol) === "v1") {
+        return (await sdk.client.pty.shells()).data ?? []
+      }
+      // return (await sdk.api.pty.shells()).data
      return [] as ShellOption[]
    },
    { initialValue: [] as ShellOption[] },
@@ -327,7 +331,6 @@ export const SettingsGeneral: Component = () => {
        >
          <Select
            data-action="settings-shell"
-            disabled
            options={shellOptions()}
            current={shellOptions().find((o) => o.value === currentShell()) ?? autoOption}
            value={(o) => o.id}
@@ -335,8 +338,7 @@ export const SettingsGeneral: Component = () => {
            onSelect={(option) => {
              if (!option) return
              if (option.value === currentShell()) return
-              // TODO: Restore config writes when the V2 client exposes a config API.
-              // void serverSync().updateConfig({ shell: option.value })
+              serverSync().updateConfig({ shell: option.value })
            }}
            variant="secondary"
            size="small"
@@ -6,7 +6,7 @@ import { showToast } from "@/utils/toast"
 import { popularProviders, useProviders } from "@/hooks/use-providers"
 import { createMemo, type Component, For, Show } from "solid-js"
 import { useLanguage } from "@/context/language"
-import { useServerSDK } from "@/context/server-sdk"
+import { useServerProtocol, useServerSDK } from "@/context/server-sdk"
 import { useServerSync } from "@/context/server-sync"
 import { DialogConnectProvider, useProviderConnectController } from "./dialog-connect-provider"
 import { DialogCustomProvider } from "./dialog-custom-provider"
@@ -39,6 +39,7 @@ const SettingsProvidersContent: Component<{ onBack?: () => void }> = (props) =>
  const dialog = useDialog()
  const language = useLanguage()
  const serverSDK = useServerSDK()
+  const protocol = useServerProtocol()
  const serverSync = useServerSync()
  const providers = useProviders(() => undefined)
  const providerConnect = useProviderConnectController({ onBack: props.onBack })
@@ -83,7 +84,8 @@ const SettingsProvidersContent: Component<{ onBack?: () => void }> = (props) =>
    return language.t("settings.providers.tag.other")
  }

-  const canDisconnect = (item: ProviderItem) => source(item) !== "env" && !isConfigCustom(item.id)
+  const canDisconnect = (item: ProviderItem) =>
+    source(item) !== "env" && (protocol() === "v1" || !isConfigCustom(item.id))

  const note = (id: string) => PROVIDER_NOTES.find((item) => item.match(id))?.key

@@ -96,7 +98,7 @@ const SettingsProvidersContent: Component<{ onBack?: () => void }> = (props) =>
  }

  const disableProvider = async (providerID: string, name: string) => {
-    return
+    if (protocol() !== "v1") return
    const before = serverSync().data.config.disabled_providers ?? []
    const next = before.includes(providerID) ? before : [...before, providerID]
    serverSync().set("config", "disabled_providers", next)
@@ -119,14 +121,17 @@ const SettingsProvidersContent: Component<{ onBack?: () => void }> = (props) =>
  }

  const disconnect = async (providerID: string, name: string) => {
+    if (isConfigCustom(providerID)) {
+      await serverSDK()
+        .client.auth.remove({ providerID })
+        .catch(() => undefined)
+      await disableProvider(providerID, name)
+      return
+    }
    await serverSDK()
-      .api.integration.get({ integrationID: providerID })
-      .then(async (integration) => {
-        const credentials = integration.data?.connections.filter((item) => item.type === "credential") ?? []
-        if (credentials.length === 0) throw new Error(`No removable credentials found for ${name}`)
-        await Promise.all(
-          credentials.map((credential) => serverSDK().api.credential.remove({ credentialID: credential.id })),
-        )
+      .client.auth.remove({ providerID })
+      .then(async () => {
+        await serverSDK().client.global.dispose()
        showToast({
          variant: "success",
          icon: "circle-check",
@@ -216,7 +221,7 @@ const SettingsProvidersContent: Component<{ onBack?: () => void }> = (props) =>
              )}
            </For>

-            <Show when={false}>
+            <Show when={protocol() === "v1"}>
              <div
                class="flex items-center justify-between gap-4 min-h-16 border-b border-border-weak-base last:border-none flex-wrap py-3"
                data-component="custom-provider-section"
@@ -10,6 +10,7 @@ import { useLanguage } from "@/context/language"
 import { usePermission } from "@/context/permission"
 import { usePlatform } from "@/context/platform"
 import { useServerSync } from "@/context/server-sync"
+import { useServerSDK } from "@/context/server-sdk"
 import { useUpdaterAction } from "../updater-action"
 import {
  monoDefault,
@@ -90,6 +91,7 @@ export const SettingsGeneralV2: Component<{
  const dialog = useDialog()
  const settings = useSettings()
  const serverSync = useServerSync()
+  const serverSdk = useServerSDK()
  const mobile = createMediaQuery("(max-width: 767px)")

  const updater = useUpdaterAction()
@@ -121,7 +123,10 @@ export const SettingsGeneralV2: Component<{

  const [shells] = createResource(
    async () => {
-      // TODO: Restore executable shell discovery when the V2 client exposes it.
+      const sdk = serverSdk()
+      if ((await sdk.protocol) === "v1") {
+        return (await sdk.client.pty.shells()).data ?? []
+      }
      // return (await sdk.api.pty.shells()).data
      return [] as ShellOption[]
    },
@@ -6,7 +6,7 @@ import { showToast } from "@/utils/toast"
 import { popularProviders, useProviders } from "@/hooks/use-providers"
 import { createMemo, type Accessor, type Component, For, Show } from "solid-js"
 import { useLanguage } from "@/context/language"
-import { useServerSDK } from "@/context/server-sdk"
+import { useServerProtocol, useServerSDK } from "@/context/server-sdk"
 import { useServerSync } from "@/context/server-sync"
 import { DialogConnectProvider, useProviderConnectController } from "../dialog-connect-provider"
 import { DialogCustomProvider } from "../dialog-custom-provider"
@@ -36,6 +36,7 @@ export const SettingsProvidersV2: Component<{
  const dialog = useDialog()
  const language = useLanguage()
  const serverSdk = useServerSDK()
+  const protocol = useServerProtocol()
  const serverSync = useServerSync()
  const providers = useProviders(props.directory)
  const providerConnect = useProviderConnectController({ onBack: props.onBack })
@@ -80,7 +81,8 @@ export const SettingsProvidersV2: Component<{
    return language.t("settings.providers.tag.other")
  }

-  const canDisconnect = (item: ProviderItem) => source(item) !== "env" && !isConfigCustom(item.id)
+  const canDisconnect = (item: ProviderItem) =>
+    source(item) !== "env" && (protocol() === "v1" || !isConfigCustom(item.id))

  const note = (id: string) => PROVIDER_NOTES.find((item) => item.match(id))?.key

@@ -93,7 +95,7 @@ export const SettingsProvidersV2: Component<{
  }

  const disableProvider = async (providerID: string, name: string) => {
-    return
+    if (protocol() !== "v1") return
    const before = serverSync().data.config.disabled_providers ?? []
    const next = before.includes(providerID) ? before : [...before, providerID]
    serverSync().set("config", "disabled_providers", next)
@@ -116,17 +118,17 @@ export const SettingsProvidersV2: Component<{
  }

  const disconnect = async (providerID: string, name: string) => {
-    const location = props.directory() ? { directory: props.directory() } : undefined
+    if (isConfigCustom(providerID)) {
+      await serverSdk()
+        .client.auth.remove({ providerID })
+        .catch(() => undefined)
+      await disableProvider(providerID, name)
+      return
+    }
    await serverSdk()
-      .api.integration.get({ integrationID: providerID, location })
-      .then(async (integration) => {
-        const credentials = integration.data?.connections.filter((item) => item.type === "credential") ?? []
-        if (credentials.length === 0) throw new Error(`No removable credentials found for ${name}`)
-        await Promise.all(
-          credentials.map((credential) =>
-            serverSdk().api.credential.remove({ credentialID: credential.id, location }),
-          ),
-        )
+      .client.auth.remove({ providerID })
+      .then(async () => {
+        await serverSdk().client.global.dispose()
        showToast({
          variant: "success",
          icon: "circle-check",
@@ -222,7 +224,7 @@ export const SettingsProvidersV2: Component<{
              )}
            </For>

-            <Show when={false}>
+            <Show when={protocol() === "v1"}>
              <div class="settings-v2-provider-row" data-component="custom-provider-section">
                <div class="settings-v2-provider-lead">
                  <ProviderIcon
@@ -5,7 +5,7 @@ import { Switch } from "@opencode-ai/ui/switch"
 import { Tabs } from "@opencode-ai/ui/tabs"
 import { showToast } from "@/utils/toast"
 import { useNavigate } from "@solidjs/router"
-import { type Accessor, createEffect, createMemo, createResource, For, type JSXElement, onCleanup, Show } from "solid-js"
+import { type Accessor, createEffect, createMemo, For, type JSXElement, onCleanup, Show } from "solid-js"
 import { createStore } from "solid-js/store"
 import { ServerHealthIndicator, ServerRow } from "@/components/server/server-row"
 import { useLanguage } from "@/context/language"
@@ -16,7 +16,7 @@ import { type ServerHealth } from "@/utils/server-health"
 import { useGlobal } from "@/context/global"
 import { useSettings } from "@/context/settings"
 import { useMcpToggle } from "@/context/mcp"
-import { useSDK } from "@/context/sdk"
+import { useServerProtocol } from "@/context/server-sdk"

 const pluginEmptyMessage = (value: string, file: string): JSXElement => {
  const parts = value.split(file)
@@ -251,7 +251,6 @@ function ServerStatusList(props: { state: ServerStatusState }) {

 export function StatusPopoverBody(props: { shown: Accessor<boolean> }) {
  const sync = useSync()
-  const sdk = useSDK()
  const global = useGlobal()
  const server = useServer()
  const platform = usePlatform()
@@ -259,6 +258,7 @@ export function StatusPopoverBody(props: { shown: Accessor<boolean> }) {
  const language = useLanguage()
  const navigate = useNavigate()
  const settings = useSettings()
+  const protocol = useServerProtocol()

  const fail = (err: unknown) => {
    showToast({
@@ -279,7 +279,9 @@ export function StatusPopoverBody(props: { shown: Accessor<boolean> }) {
    dialogRun += 1
  })
  const sortedServers = createMemo(() => {
-    const list = global.servers.list()
+    const list = settings.general.newLayoutDesigns()
+      ? global.servers.list()
+      : global.servers.list().filter((x) => global.ensureServerCtx(x).sdk.protocolKind() !== "v2")
    return listServersByHealth(list, server.key, global.servers.health)
  })
  const toggleMcp = useMcpToggle()
@@ -289,11 +291,9 @@ export function StatusPopoverBody(props: { shown: Accessor<boolean> }) {
  const mcpConnected = createMemo(() => mcpNames().filter((name) => mcpStatus(name) === "connected").length)
  const lspItems = createMemo(() => sync().data.lsp ?? [])
  const lspCount = createMemo(() => lspItems().length)
-  const [pluginList] = createResource(
-    () => (props.shown() ? sdk().directory : undefined),
-    (directory) => sdk().api.plugin.list({ location: { directory } }).then((result) => result.data),
+  const plugins = createMemo(() =>
+    (sync().data.config.plugin ?? []).map((item) => (typeof item === "string" ? item : item[0])),
  )
-  const plugins = createMemo(() => (pluginList.latest ?? []).map((item) => item.id))
  const pluginCount = createMemo(() => plugins().length)
  const pluginEmpty = createMemo(() => pluginEmptyMessage(language.t("dialog.plugins.empty"), "opencode.json"))

@@ -322,7 +322,7 @@ export function StatusPopoverBody(props: { shown: Accessor<boolean> }) {
            {lspCount() > 0 ? `${lspCount()} ` : ""}
            {language.t("status.popover.tab.lsp")}
          </Tabs.Trigger>
-          <Show when={true}>
+          <Show when={protocol() === "v1"}>
            <Tabs.Trigger value="plugins" data-slot="tab" class="text-12-regular">
              {pluginCount() > 0 ? `${pluginCount()} ` : ""}
              {language.t("status.popover.tab.plugins")}
@@ -487,7 +487,7 @@ export function StatusPopoverBody(props: { shown: Accessor<boolean> }) {
          </div>
        </Tabs.Content>

-        <Show when={true}>
+        <Show when={protocol() === "v1"}>
          <Tabs.Content value="plugins">
            <div class="flex flex-col px-2 pb-2">
              <div class="flex flex-col p-3 bg-background-base rounded-sm min-h-14">
@@ -1,4 +1,4 @@
-import type { LspStatus } from "@/types"
+import type { LspStatus } from "@opencode-ai/sdk/v2/client"
 import type { McpServer } from "@opencode-ai/client/promise"

 export function hasServiceNeedingAttention(input: { mcp: Array<McpServer["status"]["status"]> }) {
@@ -11,6 +11,7 @@ import { matchKeybind, parseKeybind } from "@/context/command"
 import { useLanguage } from "@/context/language"
 import { usePlatform } from "@/context/platform"
 import { useSDK } from "@/context/sdk"
+import { useServerSDK } from "@/context/server-sdk"
 import { terminalFontFamily, useSettings } from "@/context/settings"
 import type { LocalPTY } from "@/context/terminal"
 import { disposeIfDisposable, getHoveredLinkText, setOptionIfSupported } from "@/utils/runtime-adapters"
@@ -174,8 +175,15 @@ export const Terminal = (props: TerminalProps) => {
  const settings = useSettings()
  const theme = useTheme()
  const language = useLanguage()
+  // Terminal captures its connection for the PTY lifetime, so callers must key it per server/session.
+  const connection = useServerSDK()().server
  const directory = sdk().directory
  const url = sdk().url
+  const auth = connection.http
+  const username = auth?.username ?? "opencode"
+  const password = auth?.password ?? ""
+  const authToken = connection.type === "http" ? connection.authToken : false
+  const sameOrigin = new URL(url, location.href).origin === location.origin
  let container!: HTMLDivElement
  const [local, others] = splitProps(props, [
    "pty",
@@ -233,6 +241,16 @@ export const Terminal = (props: TerminalProps) => {
  }

  const pushSize = async (cols: number, rows: number) => {
+    if ((await sdk().protocol) === "v1") {
+      return sdk()
+        .client.pty.update({
+          ptyID: id,
+          size: { cols, rows },
+        })
+        .catch((err) => {
+          debugTerminal("failed to sync terminal size", err)
+        })
+    }
    return sdk()
      .api.pty.update({
        ptyID: id,
@@ -515,6 +533,15 @@ export const Terminal = (props: TerminalProps) => {
      }

      const gone = async () => {
+        if ((await sdk().protocol) === "v1") {
+          return sdk()
+            .client.pty.get({ ptyID: id }, { throwOnError: false })
+            .then((result) => result.response.status === 404)
+            .catch((err) => {
+              debugTerminal("failed to inspect terminal session", err)
+              return false
+            })
+        }
        return sdk()
          .api.pty.get({ ptyID: id, location: { directory } })
          .then((result) => result.data.status === "exited")
@@ -526,8 +553,33 @@ export const Terminal = (props: TerminalProps) => {
      }

      const connectToken = async () => {
-        // TODO: Add PTY tickets when the V2 client exposes a connect-token API.
-        return undefined
+        if ((await sdk().protocol) === "v1") {
+          const result = await sdk()
+            .client.pty.connectToken(
+              { ptyID: id, directory },
+              {
+                throwOnError: false,
+                headers: { "x-opencode-ticket": "1" },
+              },
+            )
+            .catch((err: unknown) => {
+              if (err instanceof Error && err.message.includes("Request is not supported")) return
+              throw err
+            })
+          if (!result) return
+          if (result.response.status === 200 && result.data?.ticket) return result.data.ticket
+          if (result.response.status === 404 || result.response.status === 405) return
+          if (result.response.status === 403)
+            throw new Error("PTY connect ticket rejected by origin or CSRF checks. Check the server CORS config.")
+          throw new Error(`PTY connect ticket failed with ${result.response.status}`)
+        }
+        // return sdk()
+        //   .api.pty.connectToken({
+        //     ptyID: id,
+        //     location: { directory },
+        //     "x-opencode-ticket": "1",
+        //   })
+        //   .then((result) => result.data.ticket)
      }

      const retry = (err: unknown) => {
@@ -557,16 +609,23 @@ export const Terminal = (props: TerminalProps) => {
          fail(err)
          return undefined
        })
+        const protocol = await sdk().protocol
+        // if (protocol === "v2" && !ticket) return
        if (once.value) return
        if (disposed) return

        const socket = new WebSocket(
          terminalWebSocketURL({
+            protocol,
            url,
            id,
            directory,
            cursor: seek,
            ticket,
+            sameOrigin,
+            username,
+            password,
+            authToken,
          }),
        )
        socket.binaryType = "arraybuffer"
@@ -4,11 +4,12 @@ import { createResizeObserver } from "@solid-primitives/resize-observer"
 import { createMutation } from "@tanstack/solid-query"
 import { IconButtonV2 } from "@opencode-ai/ui/v2/icon-button-v2"
 import { Icon as IconV2 } from "@opencode-ai/ui/v2/icon"
+import { displayLabel } from "@opencode-ai/util/session-title-fallback"
 import { useGlobal } from "@/context/global"
 import { ServerConnection, serverName } from "@/context/server"
 import { displayName, projectForSession } from "@/pages/layout/helpers"
 import { SessionTabAvatar } from "@/pages/layout/session-tab-avatar"
-import type { Session } from "@/types"
+import type { Session } from "@opencode-ai/sdk/v2"
 import { canOpenTabRename, forwardTabRef } from "./titlebar-tab-gesture"
 import { TabPreviewPopover } from "./titlebar-tab-popover"
 import "./titlebar-tab-nav.css"
@@ -54,7 +55,10 @@ export function TabNavItem(props: {
    if (!session) return
    return projectForSession(session, serverCtx()?.projects.list() ?? [])
  })
-  const title = createMemo(() => props.session()?.title ?? props.fallbackTitle)
+  const title = createMemo(() => {
+    const session = props.session()
+    return session ? displayLabel(session) : props.fallbackTitle
+  })

  const projectName = createMemo(() => {
    const session = props.session()
@@ -302,7 +306,7 @@ export function TabNavItem(props: {
      }}
      data={{
        projectName: projectName(),
-        title: props.session()?.title,
+        title: title(),
        path: previewPath(),
        serverName: serverLabel(),
      }}
@@ -19,7 +19,7 @@ import { base64Encode } from "@opencode-ai/core/util/encode"
 import { showToast } from "@/utils/toast"
 import { canStartTabDrag, isTabCloseTarget } from "./titlebar-tab-gesture"
 import { adjacentTabKey, mergeVisibleTabOrder } from "./titlebar-tab-order"
-import type { Session } from "@/types"
+import type { Session } from "@opencode-ai/sdk/v2"

 function SessionTabSlot(props: {
  tab: SessionTab
@@ -1,5 +1,5 @@
 import { Binary } from "@opencode-ai/core/util/binary"
-import type { Message, Part, Session } from "@/types"
+import type { Message, Part, Session } from "@opencode-ai/sdk/v2/client"
 import { createMemo } from "solid-js"
 import { produce, reconcile, type SetStoreFunction } from "solid-js/store"
 import type { createServerSdkContext } from "./server-sdk"
@@ -26,6 +26,7 @@ export const createDirSyncContext = (
  serverSync: ReturnType<typeof createServerSyncContextInner>,
  serverSDK: ReturnType<typeof createServerSdkContext>,
 ) => {
+  const client = serverSDK.createClient({ directory, throwOnError: true })
  const current = createMemo(() => serverSync.child(directory, { mcp: true }))
  const absolute = (path: string) => (current()[0].path.directory + "/" + path).replace("//", "/")
  const data = new Proxy({} as State, {
@@ -133,8 +134,15 @@ export const createDirSyncContext = (
      },
      more: createMemo(() => current()[0].session.length >= current()[0].limit),
      archive: async (sessionID: string) => {
-        // TODO: Restore archiving when the V2 client exposes a session archive API.
-        void sessionID
+        if ((await serverSDK.protocol) !== "v1") return
+        await serverSDK.client.session.update({ sessionID, directory, time: { archived: Date.now() } })
+        current()[1](
+          "session",
+          produce((draft) => {
+            const match = Binary.search(draft, sessionID, (session) => session.id)
+            if (match.found) draft.splice(match.index, 1)
+          }),
+        )
      },
    },
    mcp: {
@@ -81,15 +81,8 @@ export const { use: useFile, provider: FileProvider } = createSimpleContext({
      normalizeDir: path.normalizeDir,
      list: (dir) =>
        sdk()
-          .api.file.list({ path: dir, location: { directory: scope() } })
-          .then((x) =>
-            x.data.map((entry) => ({
-              ...entry,
-              name: entry.path.split("/").at(-1) ?? entry.path,
-              absolute: `${scope()}/${entry.path}`,
-              ignored: false,
-            })),
-          ),
+          .client.file.list({ path: dir })
+          .then((x) => x.data ?? []),
      onError: (message) => {
        showToast({
          variant: "error",
@@ -188,10 +181,10 @@ export const { use: useFile, provider: FileProvider } = createSimpleContext({
      setLoading(file)

      const promise = sdk()
-        .api.file.read({ path: file, location: { directory } })
-        .then((data) => {
+        .client.file.read({ path: file })
+        .then((x) => {
          if (scope() !== directory) return
-          const content = { type: "text" as const, content: new TextDecoder().decode(data) }
+          const content = x.data
          setLoaded(file, content)

          if (!content) return
@@ -1,4 +1,4 @@
-import type { FileContent } from "@/types"
+import type { FileContent } from "@opencode-ai/sdk/v2"

 const MAX_FILE_CONTENT_ENTRIES = 40
 const MAX_FILE_CONTENT_BYTES = 20 * 1024 * 1024
@@ -1,5 +1,5 @@
 import { createStore, produce, reconcile } from "solid-js/store"
-import type { FileNode } from "@/types"
+import type { FileNode } from "@opencode-ai/sdk/v2"

 type DirectoryState = {
  expanded: boolean
@@ -1,4 +1,4 @@
-import type { FileContent } from "@/types"
+import type { FileContent } from "@opencode-ai/sdk/v2"

 export type FileSelection = {
  startLine: number
@@ -1,4 +1,4 @@
-import type { FileNode } from "@/types"
+import type { FileNode } from "@opencode-ai/sdk/v2"

 type WatcherEvent = {
  type: string
@@ -1,8 +1,11 @@
 import { describe, expect, test } from "bun:test"
+import { createStore } from "solid-js/store"
 import { QueryClient } from "@tanstack/solid-query"
+import type { Config, OpencodeClient, Project } from "@opencode-ai/sdk/v2/client"
 import type { AgentApi, CatalogApi, CommandApi, ReferenceApi } from "@opencode-ai/client/promise"
 import type { NormalizedProviderListResponse } from "@opencode-ai/session-ui/context"
 import {
+  bootstrapDirectory,
  loadAgentsQuery,
  loadCommands,
  loadPathQuery,
@@ -10,19 +13,139 @@ import {
  loadProvidersQuery,
  loadReferencesQuery,
 } from "./bootstrap"
+import type { State, VcsCache } from "./types"
 import { ServerScope } from "@/utils/server-scope"
 import type { ServerApi } from "@/utils/server"

 type ProjectApi = ServerApi["project"]

+const provider = { all: new Map(), connected: [], default: {} } satisfies NormalizedProviderListResponse
+const api = {
+  agent: { list: async () => ({ location: {}, data: [] }) },
+  provider: { list: async () => ({ location: {}, data: [] }) },
+  model: {
+    list: async () => ({ location: {}, data: [] }),
+    default: async () => ({ location: {}, data: null }),
+  },
+  permission: { request: { list: async () => ({ location: {}, data: [] }) } },
+  project: {
+    list: async () => [],
+    current: async () => ({ id: "project", directory: "/project" }),
+  },
+  question: { request: { list: async () => ({ location: {}, data: [] }) } },
+  reference: { list: async () => ({ location: {}, data: [] }) },
+  vcs: { get: async () => ({ location: {}, data: {} }) },
+} as unknown as ServerApi
+
+function directoryState() {
+  return createStore<State>({
+    status: "loading",
+    agent: [],
+    command: [],
+    reference: [],
+    project: "",
+    projectMeta: undefined,
+    icon: undefined,
+    provider_ready: true,
+    provider,
+    config: {},
+    path: { state: "", config: "", worktree: "/project", directory: "/project", home: "/home" },
+    session: [],
+    sessionTotal: 0,
+    session_status: {},
+    session_working(id: string) {
+      return this.session_status[id]?.type !== "idle"
+    },
+    session_diff: {},
+    todo: {},
+    permission: {},
+    question: {},
+    mcp_ready: true,
+    mcp: {},
+    mcp_resource: {},
+    lsp_ready: true,
+    lsp: [],
+    vcs: undefined,
+    limit: 5,
+    message: {},
+    session_message: {},
+    part: {},
+    part_text_accum_delta: {},
+  })
+}
+
+describe("bootstrapDirectory", () => {
+  test("uses legacy MCP endpoints while refreshing a v1 directory", async () => {
+    const mcpReads: string[] = []
+    const [store, setStore] = directoryState()
+
+    await bootstrapDirectory({
+      directory: "/project",
+      scope: ServerScope.local,
+      mcp: true,
+      global: {
+        config: {} satisfies Config,
+        path: { state: "", config: "", worktree: "/project", directory: "/project", home: "/home" },
+        project: [{ id: "project", worktree: "/project" } as Project],
+        provider,
+      },
+      sdk: {
+        app: { agents: async () => ({ data: [{ name: "build", mode: "primary" }] }) },
+        config: { get: async () => ({ data: {} }) },
+        session: { status: async () => ({ data: {} }) },
+        vcs: { get: async () => ({ data: undefined }) },
+        command: {
+          list: async () => {
+            mcpReads.push("command")
+            return { data: [] }
+          },
+        },
+        permission: { list: async () => ({ data: [] }) },
+        question: { list: async () => ({ data: [] }) },
+        v2: { reference: { list: async () => ({ data: { data: [] } }) } },
+        mcp: {
+          status: async () => {
+            mcpReads.push("status")
+            return { data: {} }
+          },
+        },
+        experimental: {
+          resource: {
+            list: async () => {
+              mcpReads.push("resource")
+              return { data: {} }
+            },
+          },
+        },
+        provider: { list: async () => ({ data: { all: [], connected: [], default: {} } }) },
+      } as unknown as OpencodeClient,
+      api,
+      store,
+      setStore,
+      vcsCache: { setStore() {} } as unknown as VcsCache,
+      loadSessions() {},
+      translate: (key) => key,
+      queryClient: new QueryClient(),
+      protocol: Promise.resolve("v1"),
+    })
+
+    expect(store.status).toBe("partial")
+
+    await new Promise((resolve) => setTimeout(resolve, 80))
+
+    expect(store.status).toBe("complete")
+    expect(mcpReads.sort()).toEqual(["command", "resource", "status"])
+  })
+})
+
 describe("query keys", () => {
  test("partitions identical directories by server scope", () => {
+    const client = {} as Parameters<typeof loadPathQuery>[2]
    const api = {} as CatalogApi
-    const location = {} as ServerApi["location"]
    const remote = "https://debian.example" as typeof ServerScope.local

-    expect([...loadPathQuery(ServerScope.local, "/repo", location).queryKey]).toEqual(["local", "/repo", "path"])
-    expect([...loadPathQuery(remote, "/repo", location).queryKey]).toEqual(["https://debian.example", "/repo", "path"])
+    expect([...loadPathQuery(ServerScope.local, "/repo", client).queryKey]).toEqual(["local", "/repo", "path"])
+    expect([...loadPathQuery(remote, "/repo", client).queryKey]).toEqual(["https://debian.example", "/repo", "path"])
    expect([...loadProvidersQuery(remote, null, api).queryKey]).toEqual(["https://debian.example", null, "providers"])
  })

@@ -57,21 +180,6 @@ describe("query keys", () => {
    expect(result.connected).toEqual(["openai"])
  })

-  test("loads current location metadata", async () => {
-    const calls: unknown[] = []
-    const api = {
-      get: async (input: unknown) => {
-        calls.push(input)
-        return { directory: "/repo/subpath", project: { id: "project", directory: "/repo" } }
-      },
-    } as ServerApi["location"]
-
-    const result = await new QueryClient().fetchQuery(loadPathQuery(ServerScope.local, "/repo/subpath", api))
-
-    expect(calls).toEqual([{ location: { directory: "/repo/subpath" } }])
-    expect(result).toMatchObject({ directory: "/repo/subpath", worktree: "/repo" })
-  })
-
  test("loads agents from the current location-scoped endpoint", async () => {
    const calls: unknown[] = []
    const api = {
@@ -1,5 +1,6 @@
 import type {
  Config,
+  OpencodeClient,
  Path,
  PermissionRequest,
  Project,
@@ -7,7 +8,7 @@ import type {
  QuestionRequest,
  ReferenceInfo,
  Session,
-} from "@/types"
+} from "@opencode-ai/sdk/v2/client"
 import type {
  AgentListInput,
  AgentListOutput,
@@ -15,8 +16,6 @@ import type {
  CommandInfo,
  CommandListInput,
  CommandListOutput,
-  LocationGetInput,
-  LocationGetOutput,
  ProjectCurrentInput,
  ProjectCurrentOutput,
  ProjectListOutput,
@@ -44,6 +43,7 @@ import { loadMcpQuery, loadMcpResourcesQuery } from "../server-sync"
 import { NormalizedProviderListResponse } from "@opencode-ai/session-ui/context"
 import { ScopedKey, type ServerScope } from "@/utils/server-scope"
 import { normalizeSessionInfo } from "@/utils/session"
+import type { ServerProtocol } from "@/utils/server-protocol"
 import type { ServerApi } from "@/utils/server"

 type GlobalStore = {
@@ -105,18 +105,16 @@ function showErrors(input: {
  })
 }

-export const loadGlobalConfigQuery = (scope: ServerScope) =>
+export const loadGlobalConfigQuery = (scope: ServerScope, sdk: OpencodeClient) =>
  queryOptions({
    queryKey: [scope, "config"],
-    // TODO: Restore config loading when the V2 client exposes a config API.
-    queryFn: async (): Promise<Config> => ({}),
+    queryFn: () => retry(() => sdk.global.config.get().then((x) => x.data!)),
  })

 type ProjectApi = {
  readonly list: () => Promise<ProjectListOutput>
  readonly current: (input?: ProjectCurrentInput) => Promise<ProjectCurrentOutput>
 }
-type LocationApi = { readonly get: (input?: LocationGetInput) => Promise<LocationGetOutput> }

 type McpApi = ServerApi["mcp"]
 type PermissionApi = ServerApi["permission"]
@@ -140,7 +138,9 @@ export const loadProjectsQuery = (scope: ServerScope, api: ProjectApi) =>
  })

 export async function bootstrapGlobal(input: {
-  serverAPI: CatalogApi & { readonly location: LocationApi; readonly project: ProjectApi }
+  serverSDK: OpencodeClient
+  serverAPI: CatalogApi & { readonly project: ProjectApi }
+  protocol?: Promise<ServerProtocol>
  scope: ServerScope
  requestFailedTitle: string
  translate: (key: string, vars?: Record<string, string | number>) => string
@@ -149,12 +149,12 @@ export async function bootstrapGlobal(input: {
  queryClient: QueryClient
 }) {
  const slow = [
-    () => input.queryClient.fetchQuery(loadGlobalConfigQuery(input.scope)),
+    () => input.queryClient.fetchQuery(loadGlobalConfigQuery(input.scope, input.serverSDK)),
    () =>
      input.queryClient.fetchQuery(
-        loadProvidersQuery(input.scope, null, input.serverAPI),
+        loadProvidersQuery(input.scope, null, input.serverAPI, input.serverSDK, input.protocol),
      ),
-    () => input.queryClient.fetchQuery(loadPathQuery(input.scope, null, input.serverAPI.location)),
+    () => input.queryClient.fetchQuery(loadPathQuery(input.scope, null, input.serverSDK, input.protocol)),
    () =>
      input.queryClient
        .fetchQuery(loadProjectsQuery(input.scope, input.serverAPI.project))
@@ -219,11 +219,17 @@ export const loadProvidersQuery = (
  scope: ServerScope,
  directory: string | null,
  sdk: CatalogApi,
+  legacy?: OpencodeClient,
+  protocol?: Promise<ServerProtocol>,
 ) =>
  queryOptions({
    queryKey: [scope, directory, "providers"],
    queryFn: () =>
      retry(async () => {
+        if ((await protocol) === "v1" && legacy) {
+          const result = await legacy.provider.list()
+          return normalizeProviderList(result.data!)
+        }
        const location = directory ? { location: { directory } } : undefined
        const [providers, models, defaultModel] = await Promise.all([
          sdk.provider.list(location),
@@ -250,45 +256,71 @@ export const loadAgentsQuery = (
  scope: ServerScope,
  directory: string,
  sdk: AgentListApi,
+  legacy?: OpencodeClient,
+  protocol?: Promise<ServerProtocol>,
 ) =>
  queryOptions({
    queryKey: [scope, directory, "agents"],
    queryFn: () =>
-      retry(() => sdk.list({ location: { directory } }).then((result) => normalizeAgentList(result.data))),
+      retry(async () => {
+        if ((await protocol) === "v1" && legacy) return normalizeAgentList((await legacy.app.agents()).data ?? [])
+        return sdk.list({ location: { directory } }).then((result) => normalizeAgentList(result.data))
+      }),
  })

 export const loadCommands = (
  directory: string,
  api: CommandListApi,
+  legacy?: OpencodeClient,
+  protocol?: Promise<ServerProtocol>,
 ): Promise<CommandInfo[]> =>
-  retry(() => api.list({ location: { directory } }).then((result) => result.data))
+  retry(async () => {
+    if ((await protocol) === "v1" && legacy) {
+      return ((await legacy.command.list()).data ?? []).map((command) => {
+        const [providerID, id] = command.model?.split("/") ?? []
+        return {
+          name: command.name,
+          template: command.template,
+          description: command.description,
+          agent: command.agent,
+          model: providerID && id ? { providerID, id } : undefined,
+          subtask: command.subtask,
+          // source: command.source === "skill" ? undefined : command.source,
+        }
+      })
+    }
+    return api.list({ location: { directory } }).then((result) => result.data)
+  })

 export const loadPathQuery = (
  scope: ServerScope,
  directory: string | null,
-  api: LocationApi,
+  sdk: OpencodeClient,
+  protocol?: Promise<ServerProtocol>,
 ) =>
  queryOptions<Path>({
    queryKey: [scope, directory, "path"],
-    queryFn: () =>
-      api.get(directory ? { location: { directory } } : undefined).then((location) => ({
-        state: "",
-        config: "",
-        worktree: location.project.directory,
-        directory: location.directory,
-        home: "",
-      })),
+    queryFn: async () => {
+      if ((await protocol) !== "v1")
+        return { state: "", config: "", worktree: "", directory: directory ?? "", home: "" }
+      return retry(() => sdk.path.get({ directory: directory ?? undefined }).then((result) => result.data!))
+    },
  })

 export const loadReferencesQuery = (
  scope: ServerScope,
  directory: string,
  api: ReferenceListApi,
+  legacy?: OpencodeClient,
+  protocol?: Promise<ServerProtocol>,
 ) =>
  queryOptions<ReferenceInfo[]>({
    queryKey: [scope, directory, "references"] as const,
    queryFn: () =>
-      retry(() => api.list({ location: { directory } }).then((result) => result.data)).catch(() => []),
+      retry(async () => {
+        if ((await protocol) === "v1" && legacy) return (await legacy.v2.reference.list()).data?.data ?? []
+        return api.list({ location: { directory } }).then((result) => result.data)
+      }).catch(() => []),
    placeholderData: [],
  })

@@ -296,6 +328,7 @@ export async function bootstrapDirectory(input: {
  directory: string
  scope: ServerScope
  mcp: boolean
+  sdk: OpencodeClient
  api: CatalogApi & {
    readonly agent: AgentListApi
    readonly command: CommandListApi
@@ -306,7 +339,6 @@ export async function bootstrapDirectory(input: {
    readonly reference: ReferenceListApi
    readonly session: SessionApi
    readonly vcs: VcsApi
-    readonly location: LocationApi
  }
  store: Store<State>
  setStore: SetStoreFunction<State>
@@ -321,6 +353,7 @@ export async function bootstrapDirectory(input: {
  }
  queryClient: QueryClient
  session?: ServerSession
+  protocol?: Promise<ServerProtocol>
 }) {
  const loading = input.store.status !== "complete"
  const seededProject = projectID(input.directory, input.global.project)
@@ -340,8 +373,37 @@ export async function bootstrapDirectory(input: {
      () => Promise.resolve(input.loadSessions(input.directory)),
      () =>
        input.queryClient
-          .ensureQueryData(loadAgentsQuery(input.scope, input.directory, input.api.agent))
+          .ensureQueryData(loadAgentsQuery(input.scope, input.directory, input.api.agent, input.sdk, input.protocol))
          .then((data) => input.setStore("agent", data)),
+      () =>
+        retry(() => input.sdk.config.get().then((x) => input.setStore("config", reconcile(x.data!, { merge: false })))),
+      () =>
+        retry(() =>
+          (async () => {
+            if ((await input.protocol) !== "v1") return
+            const x = await input.sdk.session.status()
+            if (!input.session) {
+              input.setStore("session_status", x.data!)
+              return
+            }
+            const statuses = x.data ?? {}
+            input.session.set(
+              "session_status",
+              produce((draft) => {
+                for (const sessionID of Object.keys(draft)) {
+                  if (statuses[sessionID]) continue
+                  if (input.session?.get(sessionID)?.directory === input.directory) delete draft[sessionID]
+                }
+              }),
+            )
+            for (const [sessionID, status] of Object.entries(statuses)) {
+              input.session.set("session_status", sessionID, reconcile(status))
+            }
+            await Promise.all(
+              Object.keys(statuses).map((sessionID) => input.session!.resolve(sessionID).catch(() => undefined)),
+            )
+          })(),
+        ),
      !seededProject &&
        (() =>
          retry(() => input.api.project.current({ location: { directory: input.directory } })).then((project) =>
@@ -350,26 +412,37 @@ export async function bootstrapDirectory(input: {
      !seededPath &&
        (() =>
          input.queryClient
-            .ensureQueryData(loadPathQuery(input.scope, input.directory, input.api.location))
+            .ensureQueryData(loadPathQuery(input.scope, input.directory, input.sdk, input.protocol))
            .then((data) => {
              const next = projectID(data.directory ?? input.directory, input.global.project)
              if (next) input.setStore("project", next)
            })),
+      () =>
+        retry(async () => {
+          if ((await input.protocol) !== "v1") return
+          return input.sdk.vcs.get().then((result) => {
+            const next = { branch: result.data?.branch, default_branch: result.data?.default_branch }
+            input.setStore("vcs", next)
+            if (next) input.vcsCache.setStore("value", next)
+          })
+        }),
      input.mcp &&
        (() =>
-          loadCommands(input.directory, input.api.command).then((commands) =>
+          loadCommands(input.directory, input.api.command, input.sdk, input.protocol).then((commands) =>
            input.setStore("command", commands),
          )),
      () =>
        input.queryClient.fetchQuery(
-          loadReferencesQuery(input.scope, input.directory, input.api.reference),
+          loadReferencesQuery(input.scope, input.directory, input.api.reference, input.sdk, input.protocol),
        ),
      () =>
        retry(() =>
-          input.api.permission.request
-            .list({ location: { directory: input.directory } })
-            .then((result) => result.data.map(normalizePermissionRequest))
-            .then((permissions) => {
+          (async () => {
+            if ((await input.protocol) === "v1") return (await input.sdk.permission.list()).data ?? []
+            return input.api.permission.request
+              .list({ location: { directory: input.directory } })
+              .then((result) => result.data.map(normalizePermissionRequest))
+          })().then((permissions) => {
            const ids = permissions.map((permission) => permission.sessionID)
            const grouped = groupBySession(
              permissions.filter((permission) => !!permission.id && !!permission.sessionID),
@@ -400,10 +473,12 @@ export async function bootstrapDirectory(input: {
        ),
      () =>
        retry(() =>
-          input.api.question.request
-            .list({ location: { directory: input.directory } })
-            .then((result) => result.data)
-            .then((questions) => {
+          (async () => {
+            if ((await input.protocol) === "v1") return (await input.sdk.question.list()).data ?? []
+            return input.api.question.request
+              .list({ location: { directory: input.directory } })
+              .then((result) => result.data)
+          })().then((questions) => {
            const ids = questions.map((question) => question.sessionID)
            const grouped = groupBySession(
              questions.filter((question) => !!question.id && !!question.sessionID) as QuestionRequest[],
@@ -436,16 +511,16 @@ export async function bootstrapDirectory(input: {
      input.mcp &&
        (() =>
          input.queryClient.fetchQuery(
-            loadMcpQuery(input.scope, input.directory, input.api.mcp),
+            loadMcpQuery(input.scope, input.directory, input.api.mcp, input.sdk, input.protocol),
          )),
      input.mcp &&
        (() =>
          input.queryClient.fetchQuery(
-            loadMcpResourcesQuery(input.scope, input.directory, input.api.mcp),
+            loadMcpResourcesQuery(input.scope, input.directory, input.api.mcp, input.sdk, input.protocol),
          )),
      () =>
        input.queryClient
-          .fetchQuery(loadProvidersQuery(input.scope, input.directory, input.api))
+          .fetchQuery(loadProvidersQuery(input.scope, input.directory, input.api, input.sdk, input.protocol))
          .catch((err) => {
            const project = getFilename(input.directory)
            showToast({
@@ -1,7 +1,7 @@
 import { createRoot, createSignal, getOwner, onCleanup, runWithOwner, type Owner } from "solid-js"
 import { createStore, type SetStoreFunction, type Store } from "solid-js/store"
 import { Persist, persisted } from "@/utils/persist"
-import type { VcsInfo } from "@/types"
+import type { VcsInfo } from "@opencode-ai/sdk/v2/client"
 import {
  DIR_IDLE_TTL_MS,
  MAX_DIR_STORES,
@@ -1,5 +1,5 @@
 import { describe, expect, test } from "bun:test"
-import type { Message, Part, PermissionRequest, Project, QuestionRequest, Session } from "@/types"
+import type { Message, Part, PermissionRequest, Project, QuestionRequest, Session } from "@opencode-ai/sdk/v2/client"
 import { createStore } from "solid-js/store"
 import type { State } from "./types"
 import { applyDirectoryEvent, applyGlobalEvent, cleanupDroppedSessionCaches } from "./event-reducer"
@@ -9,7 +9,7 @@ import type {
  Session,
  SessionStatus,
  Todo,
-} from "@/types"
+} from "@opencode-ai/sdk/v2/client"
 import type { FileDiffInfo } from "@opencode-ai/client/promise"
 import type { State, VcsCache } from "./types"
 import { trimSessions } from "./session-trim"
@@ -1,5 +1,5 @@
 import { describe, expect, test } from "bun:test"
-import type { SessionV2Info } from "@/types"
+import type { SessionV2Info } from "@opencode-ai/sdk/v2/client"
 import {
  applyHomeSessionEvent,
  appendHomeSessionEvent,
@@ -33,7 +33,7 @@ describe("Home V2 session index", () => {
    const calls: unknown[] = []
    const result = await loadHomeSessionIndex(async (input) => {
      calls.push(input)
-      return { data: [session({ id: "root" })], cursor: {} }
+      return { data: { data: [session({ id: "root" })], cursor: {} } }
    })

    expect(result.sessions).toHaveLength(1)
@@ -48,13 +48,15 @@ describe("Home V2 session index", () => {
        calls.push({ input, signal: options.signal })
        if (!("cursor" in input)) {
          return {
-            data: Array.from({ length: HOME_V2_SESSION_PAGE_LIMIT }, (_, index) =>
-              session({ id: `page-1-${index}` }),
-            ),
-            cursor: { next: "next-page" },
+            data: {
+              data: Array.from({ length: HOME_V2_SESSION_PAGE_LIMIT }, (_, index) =>
+                session({ id: `page-1-${index}` }),
+              ),
+              cursor: { next: "next-page" },
+            },
          }
        }
-        return { data: [session({ id: "page-2" })], cursor: {} }
+        return { data: { data: [session({ id: "page-2" })], cursor: {} } }
      },
      0,
      controller.signal,
@@ -143,8 +145,10 @@ describe("Home V2 session index", () => {
    expect(homeSessionIndexSessions({ sessions: initial, eventSequence: 1 }, events)[0]?.title).toBe("current")
  })

-  test("refetches after reconnect", () => {
+  test("refetches after reconnect, disposal, and session moves", () => {
    expect(homeSessionIndexRefresh("server.connected", false)).toEqual({ connected: true, refetch: false })
    expect(homeSessionIndexRefresh("server.connected", true)).toEqual({ connected: true, refetch: true })
+    expect(homeSessionIndexRefresh("global.disposed", true).refetch).toBe(true)
+    expect(homeSessionIndexRefresh("session.next.moved", true).refetch).toBe(true)
  })
 })
@@ -1,5 +1,4 @@
-import type { Event, Session, SessionV2Info, V2SessionListResponse } from "@/types"
-import { withTimestampedFallback } from "@opencode-ai/util/session-title-fallback"
+import type { Event, Session, SessionV2Info, V2SessionListResponse } from "@opencode-ai/sdk/v2/client"
 import type { QueryClient } from "@tanstack/solid-query"
 import { trimSessions } from "./session-trim"
 import { pathKey } from "@/utils/path-key"
@@ -22,11 +21,13 @@ export type HomeSessionIndex = {
 export const homeSessionIndexKey = (server: string) => ["home", "session-index", server] as const
 export const homeSessionEventsKey = (server: string) => ["home", "session-events", server] as const

+type HomeSessionPage = { data?: V2SessionListResponse }
+
 export async function loadHomeSessionIndex(
  list: (
    input: { limit: number; order: "desc"; cursor?: string },
    options: { signal?: AbortSignal },
-  ) => Promise<V2SessionListResponse>,
+  ) => Promise<HomeSessionPage>,
  eventSequence = 0,
  signal?: AbortSignal,
 ) {
@@ -42,7 +43,7 @@ export async function loadHomeSessionIndex(
      },
      { signal },
    )
-    const page = response
+    const page = response.data!
    data.push(...page.data)
    if (page.data.length < HOME_V2_SESSION_PAGE_LIMIT || !page.cursor.next)
      return { sessions: parseHomeSessionIndex(data), eventSequence }
@@ -74,7 +75,10 @@ export function homeSessionIndexSessions(index: HomeSessionIndex | undefined, ev

 export function homeSessionIndexRefresh(event: Event["type"], connected: boolean) {
  if (event === "server.connected") return { connected: true, refetch: connected }
-  return { connected, refetch: false }
+  return {
+    connected,
+    refetch: event === "global.disposed" || event === "session.next.moved",
+  }
 }

 export function createHomeSessionIndexCache(queryClient: QueryClient, server: string) {
@@ -141,7 +145,7 @@ export function retainHomeSessions(sessions: Session[], limit: number, now: numb
 export function applyHomeSessionEvent(sessions: Session[], event: HomeSessionEvent) {
  const info = event.properties.info
  const index = sessions.findIndex((session) => session.id === info.id)
-    if (event.type === "session.deleted" || info.parentID || typeof info.time.archived === "number") {
+  if (event.type === "session.deleted" || info.parentID || typeof info.time.archived === "number") {
    if (index === -1) return sessions
    return sessions.toSpliced(index, 1)
  }
@@ -161,7 +165,7 @@ function toLegacySummary(session: SessionV2Info): Session {
    parentID: session.parentID,
    cost: session.cost,
    tokens: session.tokens,
-    title: withTimestampedFallback(session),
+    title: session.title,
    agent: session.agent,
    model: session.model,
    version: "",
@@ -1,5 +1,5 @@
 import { describe, expect, test } from "bun:test"
-import type { Message, Part, PermissionRequest, QuestionRequest, SessionStatus, Todo } from "@/types"
+import type { Message, Part, PermissionRequest, QuestionRequest, SessionStatus, Todo } from "@opencode-ai/sdk/v2/client"
 import type { FileDiffInfo } from "@opencode-ai/client/promise"
 import { dropSessionCaches, pickSessionCacheEvictions } from "./session-cache"

@@ -1,4 +1,4 @@
-import type { Message, Part, PermissionRequest, QuestionRequest, SessionStatus, Todo } from "@/types"
+import type { Message, Part, PermissionRequest, QuestionRequest, SessionStatus, Todo } from "@opencode-ai/sdk/v2/client"
 import type { FileDiffInfo } from "@opencode-ai/client/promise"
 import type { SessionMessageInfo } from "@opencode-ai/client/promise"

@@ -1,5 +1,6 @@
 import type { SessionApi } from "@opencode-ai/client/promise"
 import { normalizeSessionInfo } from "@/utils/session"
+import type { OpencodeClient } from "@opencode-ai/sdk/v2/client"

 export async function loadRootSessions(input: { api: Pick<SessionApi, "list">; directory: string; limit: number }) {
  const result = await input.api.list({
@@ -15,6 +16,16 @@ export async function loadRootSessions(input: { api: Pick<SessionApi, "list">; d
  } as const
 }

+export async function loadRootSessionsV1(input: { client: OpencodeClient; directory: string; limit: number }) {
+  try {
+    const result = await input.client.session.list({ directory: input.directory, roots: true, limit: input.limit })
+    return { data: result.data, limit: input.limit, limited: true } as const
+  } catch {
+    const result = await input.client.session.list({ directory: input.directory, roots: true })
+    return { data: result.data, limit: input.limit, limited: false } as const
+  }
+}
+
 export function estimateRootSessionTotal(input: { count: number; limit: number; limited: boolean }) {
  if (!input.limited) return input.count
  if (input.count < input.limit) return input.count
@@ -1,5 +1,5 @@
 import { describe, expect, test } from "bun:test"
-import type { PermissionRequest, Session } from "@/types"
+import type { PermissionRequest, Session } from "@opencode-ai/sdk/v2/client"
 import { trimSessions } from "./session-trim"

 const session = (input: { id: string; parentID?: string; created: number; updated?: number; archived?: number }) =>
@@ -1,4 +1,4 @@
-import type { PermissionRequest, Session } from "@/types"
+import type { PermissionRequest, Session } from "@opencode-ai/sdk/v2/client"
 import { cmp } from "./utils"
 import { SESSION_RECENT_LIMIT, SESSION_RECENT_WINDOW } from "./types"

@@ -12,7 +12,7 @@ import type {
  SessionStatus,
  Todo,
  VcsInfo,
-} from "@/types"
+} from "@opencode-ai/sdk/v2/client"
 import type { FileDiffInfo } from "@opencode-ai/client/promise"
 import { NormalizedProviderListResponse } from "@opencode-ai/session-ui/context"
 import type { CommandInfo, McpResource, McpServer, SessionMessageInfo } from "@opencode-ai/client/promise"
--- a/Show More
+++ b/Show More