diff --git a/apps/server/src/ru-fork/qwen-transcript/QwenTranscriptLive.ts b/apps/server/src/ru-fork/qwen-transcript/QwenTranscriptLive.ts
new file mode 100644
index 00000000000..0f286bc4bbe
--- /dev/null
+++ b/apps/server/src/ru-fork/qwen-transcript/QwenTranscriptLive.ts
@@ -0,0 +1,139 @@
+// ru-fork: Live layer for QwenTranscriptService. Resolves a thread's transcript
+// path from durable state (cwd via ProjectionSnapshotQuery.getThreadCheckpointContext,
+// sessionId via ProviderSessionDirectory.getBinding), then tails the append-only
+// JSONL with the proven serverSettings.ts watch+debounce pattern. Race-free and
+// dedup-free: the watch is attached before the first read and every emission is a
+// slice from one monotonic counter. See ru-fork-instrumental/advanced-chat/PLAN.md.
+import * as Duration from "effect/Duration";
+import * as Effect from "effect/Effect";
+import * as FileSystem from "effect/FileSystem";
+import * as Layer from "effect/Layer";
+import * as Option from "effect/Option";
+import * as Path from "effect/Path";
+import * as Ref from "effect/Ref";
+import * as Stream from "effect/Stream";
+
+import type { ThreadId, TranscriptStreamItem } from "@t3tools/contracts";
+import { TranscriptSubscribeError } from "@t3tools/contracts";
+
+import { ServerConfig } from "../../config.ts";
+import { ProjectionSnapshotQuery } from "../../orchestration/Services/ProjectionSnapshotQuery.ts";
+import { ProviderSessionDirectory } from "../../provider/Services/ProviderSessionDirectory.ts";
+import { readRuntimeOutputDirOverride } from "./cliSettings.ts";
+import { parseAndNormalize } from "./parse.ts";
+import { resolveChatsDir } from "./paths.ts";
+import { QwenTranscriptService, type QwenTranscriptServiceShape } from "./QwenTranscriptService.ts";
+
+/** Parse our `CliResumeCursor` ({ schemaVersion: 1, sessionId }) → sessionId. */
+const parseResumeSessionId = (raw: unknown): Option.Option<string> => {
+  if (typeof raw !== "object" || raw === null) return Option.none();
+  const candidate = raw as { schemaVersion?: unknown; sessionId?: unknown };
+  if (candidate.schemaVersion !== 1) return Option.none();
+  return typeof candidate.sessionId === "string" && candidate.sessionId.length > 0
+    ? Option.some(candidate.sessionId)
+    : Option.none();
+};
+
+export const QwenTranscriptLive = Layer.effect(
+  QwenTranscriptService,
+  Effect.gen(function* () {
+    const fs = yield* FileSystem.FileSystem;
+    const path = yield* Path.Path;
+    const config = yield* ServerConfig;
+    const directory = yield* ProviderSessionDirectory;
+    const projection = yield* ProjectionSnapshotQuery;
+
+    const resolveSessionId = (threadId: ThreadId): Effect.Effect<Option.Option<string>> =>
+      directory.getBinding(threadId).pipe(
+        Effect.map((binding) =>
+          Option.isSome(binding) ? parseResumeSessionId(binding.value.resumeCursor) : Option.none(),
+        ),
+        Effect.orElseSucceed(() => Option.none<string>()),
+      );
+
+    const subscribe = (
+      threadId: ThreadId,
+    ): Stream.Stream<TranscriptStreamItem, TranscriptSubscribeError> =>
+      Stream.unwrap(
+        Effect.gen(function* () {
+          const ctx = yield* projection.getThreadCheckpointContext(threadId).pipe(
+            Effect.mapError(
+              (cause) =>
+                new TranscriptSubscribeError({
+                  message: `Не удалось определить рабочий каталог потока: ${String(cause)}`,
+                  threadId,
+                }),
+            ),
+          );
+          if (Option.isNone(ctx)) {
+            return yield* new TranscriptSubscribeError({
+              message: `Поток ${threadId} не найден.`,
+              threadId,
+            });
+          }
+          const cwd = ctx.value.worktreePath ?? ctx.value.workspaceRoot;
+          const runtimeOutputDirSetting = yield* readRuntimeOutputDirOverride(
+            fs,
+            path,
+            config.cliConfigDir,
+            cwd,
+          );
+          const baseInput = {
+            env: process.env,
+            cliConfigDir: config.cliConfigDir,
+            cwd,
+            runtimeOutputDirSetting,
+          };
+          const chatsDir = resolveChatsDir(baseInput);
+          yield* fs.makeDirectory(chatsDir, { recursive: true }).pipe(Effect.ignore);
+
+          const emitted = yield* Ref.make(0);
+
+          // Read + normalize all records currently on disk for a known session.
+          // Missing session id or missing file → no records (an empty feed).
+          const readRecords = (sessionId: Option.Option<string>) =>
+            Effect.gen(function* () {
+              if (Option.isNone(sessionId)) return [];
+              const filePath = path.join(chatsDir, `${sessionId.value}.jsonl`);
+              const exists = yield* fs.exists(filePath).pipe(Effect.orElseSucceed(() => false));
+              const text = exists
+                ? yield* fs.readFileString(filePath).pipe(Effect.orElseSucceed(() => ""))
+                : "";
+              return parseAndNormalize(text);
+            });
+
+          // First non-empty read is a `snapshot`; every later read is an `append`
+          // of only the records beyond what we've already emitted.
+          const readDelta: Effect.Effect<TranscriptStreamItem> = Effect.gen(function* () {
+            const sessionId = yield* resolveSessionId(threadId);
+            const records = yield* readRecords(sessionId);
+            const prev = yield* Ref.getAndSet(emitted, records.length);
+            return prev === 0
+              ? { kind: "snapshot" as const, records }
+              : { kind: "append" as const, records: records.slice(prev) };
+          });
+
+          // Hybrid liveness: fs.watch gives instant updates where inotify works;
+          // a low-frequency poll guarantees eventual delivery on filesystems that
+          // don't deliver watch events (network/virtual mounts, some containers).
+          // Each trigger re-reads + slices, so duplicate triggers are harmless and
+          // any append missed in the watch-attach window is healed by the next poll.
+          const watchTriggers = fs.watch(chatsDir).pipe(
+            Stream.filter((event) => event.path.endsWith(".jsonl")),
+            Stream.debounce(Duration.millis(100)),
+            Stream.catchCause(() => Stream.empty),
+          );
+          const pollTriggers = Stream.tick(Duration.seconds(1));
+          const liveDeltas = Stream.merge(watchTriggers, pollTriggers).pipe(
+            Stream.mapEffect(() => readDelta),
+          );
+
+          return Stream.concat(Stream.fromEffect(readDelta), liveDeltas).pipe(
+            Stream.filter((item) => item.kind === "snapshot" || item.records.length > 0),
+          );
+        }),
+      );
+
+    return { subscribe } satisfies QwenTranscriptServiceShape;
+  }),
+);
diff --git a/apps/server/src/ru-fork/qwen-transcript/QwenTranscriptService.ts b/apps/server/src/ru-fork/qwen-transcript/QwenTranscriptService.ts
new file mode 100644
index 00000000000..3d79883c2ee
--- /dev/null
+++ b/apps/server/src/ru-fork/qwen-transcript/QwenTranscriptService.ts
@@ -0,0 +1,23 @@
+// ru-fork: advanced chat mode — service that streams a thread's normalized qwen
+// transcript (snapshot + live appends). Read-only; the control plane (approvals,
+// turns) stays on the ACP path. See ru-fork-instrumental/advanced-chat/PLAN.md.
+import * as Context from "effect/Context";
+import type * as Stream from "effect/Stream";
+
+import type { ThreadId, TranscriptStreamItem, TranscriptSubscribeError } from "@t3tools/contracts";
+
+export interface QwenTranscriptServiceShape {
+  /**
+   * Stream the transcript for `threadId`: first item is a `snapshot` of all
+   * records currently on disk; subsequent items are `append` batches as the CLI
+   * writes. Fails only when the thread itself cannot be resolved.
+   */
+  readonly subscribe: (
+    threadId: ThreadId,
+  ) => Stream.Stream<TranscriptStreamItem, TranscriptSubscribeError>;
+}
+
+export class QwenTranscriptService extends Context.Service<
+  QwenTranscriptService,
+  QwenTranscriptServiceShape
+>()("t3/ru-fork/QwenTranscriptService") {}
diff --git a/apps/server/src/ru-fork/qwen-transcript/cliSettings.ts b/apps/server/src/ru-fork/qwen-transcript/cliSettings.ts
new file mode 100644
index 00000000000..215a490939a
--- /dev/null
+++ b/apps/server/src/ru-fork/qwen-transcript/cliSettings.ts
@@ -0,0 +1,55 @@
+// ru-fork: read `advanced.runtimeOutputDir` from the spawned CLI's settings.json
+// (global `<cliConfigDir>/settings.json`, then workspace `<cwd>/<CLI_FOLDER>/settings.json`,
+// workspace wins — qwen's merge order). Missing/invalid → undefined. This is the
+// ONLY thing that moves transcripts off the default base (see paths.ts).
+//
+// Takes already-resolved `fs`/`path` VALUES (not service requirements) so the
+// returned Effect has R = never and the transcript stream stays requirement-free.
+//
+// We parse the CLI's own settings.json (a foreign file with an unknown shape we
+// only sample one field from), so a defensive JSON.parse is the right tool here
+// rather than a full Effect Schema decode.
+// @effect-diagnostics preferSchemaOverJson:off
+import * as Effect from "effect/Effect";
+import type * as FileSystem from "effect/FileSystem";
+import type * as Path from "effect/Path";
+
+import { CLI_FOLDER } from "../../config.ts";
+
+/** Pure: extract `advanced.runtimeOutputDir` from a parsed settings object. */
+export const pickRuntimeOutputDir = (raw: unknown): string | undefined => {
+  if (typeof raw !== "object" || raw === null) return undefined;
+  const advanced = (raw as Record<string, unknown>)["advanced"];
+  if (typeof advanced !== "object" || advanced === null) return undefined;
+  const value = (advanced as Record<string, unknown>)["runtimeOutputDir"];
+  return typeof value === "string" && value.trim().length > 0 ? value : undefined;
+};
+
+/** Pure JSON parse that never throws (malformed → undefined). */
+const parseJsonSafe = (text: string): unknown => {
+  try {
+    return JSON.parse(text) as unknown;
+  } catch {
+    return undefined;
+  }
+};
+
+const readJsonSafe = (fs: FileSystem.FileSystem, filePath: string): Effect.Effect<unknown> =>
+  Effect.gen(function* () {
+    const exists = yield* fs.exists(filePath).pipe(Effect.orElseSucceed(() => false));
+    if (!exists) return undefined;
+    const text = yield* fs.readFileString(filePath).pipe(Effect.orElseSucceed(() => ""));
+    return parseJsonSafe(text);
+  });
+
+export const readRuntimeOutputDirOverride = (
+  fs: FileSystem.FileSystem,
+  path: Path.Path,
+  cliConfigDir: string,
+  cwd: string,
+): Effect.Effect<string | undefined> =>
+  Effect.gen(function* () {
+    const globalRaw = yield* readJsonSafe(fs, path.join(cliConfigDir, "settings.json"));
+    const workspaceRaw = yield* readJsonSafe(fs, path.join(cwd, CLI_FOLDER, "settings.json"));
+    return pickRuntimeOutputDir(workspaceRaw) ?? pickRuntimeOutputDir(globalRaw);
+  });
diff --git a/apps/server/src/ru-fork/qwen-transcript/parse.ts b/apps/server/src/ru-fork/qwen-transcript/parse.ts
new file mode 100644
index 00000000000..1ed8a5ead71
--- /dev/null
+++ b/apps/server/src/ru-fork/qwen-transcript/parse.ts
@@ -0,0 +1,259 @@
+// ru-fork: pure parse + normalize of qwen's JSONL transcript records into the
+// `TranscriptRecord` wire contract. No I/O, no throws — malformed input is
+// skipped/counted so one bad line can never poison the feed. Mirrors qwen
+// chatRecordingService.ts (ChatRecord), tools.ts (ToolResultDisplay), and
+// geminiChat.ts (Part discrimination).
+import type {
+  TranscriptPart,
+  TranscriptRecord,
+  TranscriptToolCall,
+  TranscriptToolDisplay,
+  TranscriptToolStatus,
+  TranscriptUsage,
+} from "@t3tools/contracts";
+
+type Json = unknown;
+type Obj = Record<string, unknown>;
+
+const isObj = (value: unknown): value is Obj =>
+  typeof value === "object" && value !== null && !Array.isArray(value);
+
+const asString = (value: unknown): string | undefined =>
+  typeof value === "string" ? value : undefined;
+
+const asNumber = (value: unknown): number | undefined =>
+  typeof value === "number" && Number.isFinite(value) ? value : undefined;
+
+export interface ParseResult {
+  readonly records: TranscriptRecord[];
+  readonly errorCount: number;
+}
+
+/** Split append-only JSONL → parsed objects. Trailing partial/blank lines and
+ *  malformed lines are skipped (the latter counted). */
+export const parseTranscriptJsonl = (text: string): { rows: Obj[]; errorCount: number } => {
+  const rows: Obj[] = [];
+  let errorCount = 0;
+  for (const line of text.split("\n")) {
+    const trimmed = line.trim();
+    if (trimmed.length === 0) continue;
+    try {
+      const parsed = JSON.parse(trimmed) as unknown;
+      if (isObj(parsed)) rows.push(parsed);
+      else errorCount += 1;
+    } catch {
+      errorCount += 1;
+    }
+  }
+  return { rows, errorCount };
+};
+
+const normalizePart = (raw: unknown): TranscriptPart => {
+  if (!isObj(raw)) return { kind: "unknown", raw };
+  if (raw["thought"] === true) {
+    return { kind: "thought", text: asString(raw["text"]) ?? "" };
+  }
+  if (isObj(raw["functionCall"])) {
+    const fc = raw["functionCall"];
+    return { kind: "function_call", name: asString(fc["name"]) ?? "", args: fc["args"] };
+  }
+  if (isObj(raw["functionResponse"])) {
+    const fr = raw["functionResponse"];
+    return {
+      kind: "function_response",
+      name: asString(fr["name"]) ?? "",
+      response: fr["response"],
+    };
+  }
+  if (typeof raw["text"] === "string") {
+    return { kind: "text", text: raw["text"] };
+  }
+  if (isObj(raw["inlineData"])) {
+    return { kind: "inline_data", mimeType: asString(raw["inlineData"]["mimeType"]) ?? "" };
+  }
+  return { kind: "unknown", raw };
+};
+
+const normalizeParts = (message: unknown): TranscriptPart[] => {
+  if (!isObj(message)) return [];
+  const parts = message["parts"];
+  if (!Array.isArray(parts)) return [];
+  return parts.map(normalizePart);
+};
+
+const normalizeUsage = (raw: unknown): TranscriptUsage | undefined => {
+  if (!isObj(raw)) return undefined;
+  const prompt = asNumber(raw["promptTokenCount"]);
+  const cached = asNumber(raw["cachedInputTokenCount"]);
+  const output = asNumber(raw["candidatesTokenCount"]);
+  const total = asNumber(raw["totalTokenCount"]);
+  const usage: TranscriptUsage = {
+    ...(prompt !== undefined ? { promptTokens: prompt } : {}),
+    ...(cached !== undefined ? { cachedTokens: cached } : {}),
+    ...(output !== undefined ? { outputTokens: output } : {}),
+    ...(total !== undefined ? { totalTokens: total } : {}),
+  };
+  return Object.keys(usage).length > 0 ? usage : undefined;
+};
+
+const TOOL_STATUSES: ReadonlySet<string> = new Set<TranscriptToolStatus>([
+  "validating",
+  "scheduled",
+  "error",
+  "success",
+  "executing",
+  "cancelled",
+  "awaiting_approval",
+]);
+
+const normalizeDisplay = (raw: unknown): TranscriptToolDisplay | undefined => {
+  if (raw === undefined || raw === null) return undefined;
+  if (typeof raw === "string") return { kind: "text", text: raw };
+  if (!isObj(raw)) return { kind: "unknown", raw };
+
+  if (typeof raw["fileDiff"] === "string") {
+    return {
+      kind: "file_diff",
+      fileName: asString(raw["fileName"]) ?? "",
+      fileDiff: raw["fileDiff"],
+      originalContent: typeof raw["originalContent"] === "string" ? raw["originalContent"] : null,
+      newContent: asString(raw["newContent"]) ?? "",
+      ...(raw["diffStat"] !== undefined ? { diffStat: raw["diffStat"] } : {}),
+    };
+  }
+
+  const type = raw["type"];
+  if (type === "todo_list" && Array.isArray(raw["todos"])) {
+    const todos = raw["todos"]
+      .filter(isObj)
+      .map((todo) => ({
+        id: asString(todo["id"]) ?? "",
+        content: asString(todo["content"]) ?? "",
+        status: ((): "pending" | "in_progress" | "completed" => {
+          const status = todo["status"];
+          return status === "in_progress" || status === "completed" ? status : "pending";
+        })(),
+      }));
+    return { kind: "todo_list", todos };
+  }
+  if (type === "plan_summary") {
+    return {
+      kind: "plan_summary",
+      message: asString(raw["message"]) ?? "",
+      plan: asString(raw["plan"]) ?? "",
+      ...(typeof raw["rejected"] === "boolean" ? { rejected: raw["rejected"] } : {}),
+    };
+  }
+  if (type === "task_execution") {
+    return {
+      kind: "task_execution",
+      subagentName: asString(raw["subagentName"]) ?? "",
+      status: asString(raw["status"]) ?? "",
+      taskDescription: asString(raw["taskDescription"]) ?? "",
+      ...(asString(raw["result"]) !== undefined ? { result: asString(raw["result"]) } : {}),
+      ...(Array.isArray(raw["toolCalls"]) ? { toolCalls: raw["toolCalls"] } : {}),
+    };
+  }
+  if (type === "mcp_tool_progress") {
+    return {
+      kind: "mcp_progress",
+      progress: asNumber(raw["progress"]) ?? 0,
+      ...(asNumber(raw["total"]) !== undefined ? { total: asNumber(raw["total"]) } : {}),
+      ...(asString(raw["message"]) !== undefined ? { message: asString(raw["message"]) } : {}),
+    };
+  }
+  if (raw["ansiOutput"] !== undefined) {
+    return { kind: "ansi", raw: raw["ansiOutput"] };
+  }
+  return { kind: "unknown", raw };
+};
+
+const normalizeToolCall = (raw: unknown): TranscriptToolCall | undefined => {
+  if (!isObj(raw)) return undefined;
+  const callId = asString(raw["callId"]);
+  const statusRaw = raw["status"];
+  const status =
+    typeof statusRaw === "string" && TOOL_STATUSES.has(statusRaw)
+      ? (statusRaw as TranscriptToolStatus)
+      : undefined;
+  const display = normalizeDisplay(raw["resultDisplay"]);
+  return {
+    ...(callId !== undefined ? { callId } : {}),
+    ...(status !== undefined ? { status } : {}),
+    ...(display !== undefined ? { display } : {}),
+  };
+};
+
+const SYSTEM_SUBTYPES: ReadonlySet<string> = new Set([
+  "chat_compression",
+  "slash_command",
+  "ui_telemetry",
+  "at_command",
+]);
+
+/** qwen ChatRecord → TranscriptRecord. Returns null for an unusable row. */
+export const normalizeRecord = (raw: Obj): TranscriptRecord | null => {
+  const type = raw["type"];
+  const uuid = asString(raw["uuid"]);
+  const sessionId = asString(raw["sessionId"]);
+  const timestamp = asString(raw["timestamp"]);
+  if (uuid === undefined || sessionId === undefined || timestamp === undefined) return null;
+
+  const base = {
+    uuid,
+    parentUuid: typeof raw["parentUuid"] === "string" ? raw["parentUuid"] : null,
+    sessionId,
+    timestamp,
+    cwd: asString(raw["cwd"]) ?? "",
+    ...(asString(raw["gitBranch"]) !== undefined ? { gitBranch: asString(raw["gitBranch"]) } : {}),
+  };
+
+  if (type === "user") {
+    return { ...base, type: "user", parts: normalizeParts(raw["message"]) };
+  }
+  if (type === "assistant") {
+    const usage = normalizeUsage(raw["usageMetadata"]);
+    return {
+      ...base,
+      type: "assistant",
+      parts: normalizeParts(raw["message"]),
+      ...(asString(raw["model"]) !== undefined ? { model: asString(raw["model"]) } : {}),
+      ...(asNumber(raw["contextWindowSize"]) !== undefined
+        ? { contextWindowSize: asNumber(raw["contextWindowSize"]) }
+        : {}),
+      ...(usage !== undefined ? { usage } : {}),
+    };
+  }
+  if (type === "tool_result") {
+    const toolCall = normalizeToolCall(raw["toolCallResult"]);
+    return {
+      ...base,
+      type: "tool_result",
+      parts: normalizeParts(raw["message"]),
+      ...(toolCall !== undefined ? { toolCall } : {}),
+    };
+  }
+  if (type === "system") {
+    const subtype = raw["subtype"];
+    return {
+      ...base,
+      type: "system",
+      ...(typeof subtype === "string" && SYSTEM_SUBTYPES.has(subtype)
+        ? { subtype: subtype as "chat_compression" | "slash_command" | "ui_telemetry" | "at_command" }
+        : {}),
+      ...(raw["systemPayload"] !== undefined ? { payload: raw["systemPayload"] as Json } : {}),
+    };
+  }
+  return null;
+};
+
+/** Full pipeline: JSONL text → ordered normalized records. */
+export const parseAndNormalize = (text: string): TranscriptRecord[] => {
+  const { rows } = parseTranscriptJsonl(text);
+  const records: TranscriptRecord[] = [];
+  for (const row of rows) {
+    const normalized = normalizeRecord(row);
+    if (normalized !== null) records.push(normalized);
+  }
+  return records;
+};
diff --git a/apps/server/src/ru-fork/qwen-transcript/paths.ts b/apps/server/src/ru-fork/qwen-transcript/paths.ts
new file mode 100644
index 00000000000..d81333efe90
--- /dev/null
+++ b/apps/server/src/ru-fork/qwen-transcript/paths.ts
@@ -0,0 +1,65 @@
+// @effect-diagnostics nodeBuiltinImport:off
+// ru-fork: deterministic resolver for qwen's on-disk transcript file. Mirrors
+// qwen-code core/src/config/storage.ts (getRuntimeBaseDir / getProjectDir) and
+// utils/paths.ts (sanitizeCwd) EXACTLY so our resolved path === the CLI's path.
+//
+// Base dir priority (storage.ts:102-118):
+//   QWEN_RUNTIME_DIR env > settings.advanced.runtimeOutputDir > getGlobalQwenDir()
+// where getGlobalQwenDir() == os.homedir()/$CLI_DIR == ServerConfig.cliConfigDir.
+// We use `cliConfigDir` for the default so the base tracks our resolved CLI
+// config dir (the same root the skills scanner reads), never a literal ".qwen".
+import * as path from "node:path";
+import * as os from "node:os";
+
+/** 1:1 port of qwen utils/paths.ts:218 sanitizeCwd. `platform` is injectable for tests. */
+export const sanitizeCwd = (cwd: string, platform: NodeJS.Platform = os.platform()): string => {
+  const normalized = platform === "win32" ? cwd.toLowerCase() : cwd;
+  return normalized.replace(/[^a-zA-Z0-9]/g, "-");
+};
+
+/** 1:1 port of qwen storage.ts:40-67 resolveRuntimeBaseDir (tilde + relative). */
+export const expandRuntimeBaseDir = (dir: string, cwd: string): string => {
+  let resolved = dir;
+  if (resolved === "~" || resolved.startsWith("~/") || resolved.startsWith("~\\")) {
+    const rest =
+      resolved === "~" ? [] : resolved.slice(2).split(/[/\\]+/).filter(Boolean);
+    resolved = path.join(os.homedir(), ...rest);
+  }
+  if (!path.isAbsolute(resolved)) {
+    resolved = path.resolve(cwd, resolved);
+  }
+  return resolved;
+};
+
+export interface TranscriptBaseInput {
+  /** process env of THIS server (the child inherits it; QWEN_RUNTIME_DIR wins). */
+  readonly env: NodeJS.ProcessEnv;
+  /** ServerConfig.cliConfigDir = {home}/$CLI_DIR = qwen's default runtime base. */
+  readonly cliConfigDir: string;
+  /** thread cwd (worktreePath ?? workspaceRoot). */
+  readonly cwd: string;
+  /** advanced.runtimeOutputDir from the CLI settings.json, if any. */
+  readonly runtimeOutputDirSetting: string | undefined;
+}
+
+/** Mirror of storage.ts:102-118 priority. */
+export const resolveTranscriptBaseDir = (input: TranscriptBaseInput): string => {
+  const fromEnv = input.env["QWEN_RUNTIME_DIR"];
+  if (fromEnv && fromEnv.trim()) {
+    return expandRuntimeBaseDir(fromEnv.trim(), input.cwd);
+  }
+  const setting = input.runtimeOutputDirSetting?.trim();
+  if (setting) {
+    return expandRuntimeBaseDir(setting, input.cwd);
+  }
+  return input.cliConfigDir;
+};
+
+/** `<base>/projects/<sanitizeCwd(cwd)>/chats`. */
+export const resolveChatsDir = (input: TranscriptBaseInput): string =>
+  path.join(resolveTranscriptBaseDir(input), "projects", sanitizeCwd(input.cwd), "chats");
+
+/** `<chatsDir>/<sessionId>.jsonl`. */
+export const resolveTranscriptFilePath = (
+  input: TranscriptBaseInput & { readonly sessionId: string },
+): string => path.join(resolveChatsDir(input), `${input.sessionId}.jsonl`);
diff --git a/apps/server/src/ws.ts b/apps/server/src/ws.ts
index 707fec94e9b..51951dbe06b 100644
--- a/apps/server/src/ws.ts
+++ b/apps/server/src/ws.ts
@@ -30,6 +30,7 @@ import {
   FilesystemBrowseError,
   ThreadId,
   type TerminalEvent,
+  TRANSCRIPT_WS_METHOD,
   WS_METHODS,
   WsRpcGroup,
 } from "@t3tools/contracts";
@@ -49,6 +50,9 @@ import { McpProjectionQuery } from "./ru-fork/mcp/McpProjectionQuery.ts";
 import { McpRuntime } from "./ru-fork/mcp/McpRuntime.ts";
 import { McpSupervisor } from "./ru-fork/mcp/McpSupervisor.ts";
 import { ProjectionSnapshotQuery } from "./orchestration/Services/ProjectionSnapshotQuery.ts";
+// ru-fork: advanced chat mode — qwen transcript stream service.
+import { QwenTranscriptService } from "./ru-fork/qwen-transcript/QwenTranscriptService.ts";
+import { QwenTranscriptLive } from "./ru-fork/qwen-transcript/QwenTranscriptLive.ts";
 // ru-fork: telemetry/observability (spans + metrics) was removed, and the
 // per-RPC FAILURE CAPTURE that lived in this wrapper went with it — so every
 // RPC failed silently server-side. These wrappers restore just the failure
@@ -194,6 +198,8 @@ const makeWsRpcLayer = (currentSessionId: AuthSessionId) =>
   WsRpcGroup.toLayer(
     Effect.gen(function* () {
       const projectionSnapshotQuery = yield* ProjectionSnapshotQuery;
+      // ru-fork: advanced chat mode — read-only qwen transcript feed.
+      const qwenTranscript = yield* QwenTranscriptService;
       const orchestrationEngine = yield* OrchestrationEngineService;
       const checkpointDiffQuery = yield* CheckpointDiffQuery;
       const keybindings = yield* Keybindings;
@@ -886,6 +892,13 @@ const makeWsRpcLayer = (currentSessionId: AuthSessionId) =>
             }),
             { "rpc.aggregate": "orchestration" },
           ),
+        // ru-fork: advanced chat mode — stream the qwen JSONL transcript.
+        [TRANSCRIPT_WS_METHOD]: (input) =>
+          observeRpcStream(
+            TRANSCRIPT_WS_METHOD,
+            qwenTranscript.subscribe(input.threadId),
+            { "rpc.aggregate": "orchestration" },
+          ),
         [WS_METHODS.serverGetConfig]: (_input) =>
           observeRpcEffect(WS_METHODS.serverGetConfig, loadServerConfig, {
             "rpc.aggregate": "server",
@@ -1345,6 +1358,10 @@ export const websocketRpcRouteLayer = prefixedRouteLayer(
       Effect.provide(
         makeWsRpcLayer(session.sessionId).pipe(
           Layer.provideMerge(RpcSerialization.layerJson),
+          // ru-fork: advanced chat mode — deps (ProjectionSnapshotQuery,
+          // ProviderSessionDirectory, ServerConfig, FileSystem) come from the
+          // outer runtime context this route is provided within.
+          Layer.provide(QwenTranscriptLive),
           Layer.provide(ProviderMaintenanceRunner.layer),
           Layer.provide(
             SourceControlDiscoveryLayer.layer.pipe(
diff --git a/apps/server/tests/ru-fork/qwen-transcript/QwenTranscriptLive.test.ts b/apps/server/tests/ru-fork/qwen-transcript/QwenTranscriptLive.test.ts
new file mode 100644
index 00000000000..a43e94fdf35
--- /dev/null
+++ b/apps/server/tests/ru-fork/qwen-transcript/QwenTranscriptLive.test.ts
@@ -0,0 +1,338 @@
+import * as NodeServices from "@effect/platform-node/NodeServices";
+import { expect, it } from "@effect/vitest";
+import {
+  ProjectId,
+  ProviderDriverKind,
+  ThreadId,
+  type TranscriptStreamItem,
+} from "@t3tools/contracts";
+import * as Duration from "effect/Duration";
+import * as Effect from "effect/Effect";
+import * as Exit from "effect/Exit";
+import * as FileSystem from "effect/FileSystem";
+import * as Layer from "effect/Layer";
+import * as Option from "effect/Option";
+import * as Path from "effect/Path";
+import * as Stream from "effect/Stream";
+
+import { ServerConfig } from "../../../src/config.ts";
+import {
+  ProjectionSnapshotQuery,
+  type ProjectionSnapshotQueryShape,
+} from "../../../src/orchestration/Services/ProjectionSnapshotQuery.ts";
+import {
+  ProviderSessionDirectory,
+  type ProviderSessionDirectoryShape,
+} from "../../../src/provider/Services/ProviderSessionDirectory.ts";
+import { QwenTranscriptLive } from "../../../src/ru-fork/qwen-transcript/QwenTranscriptLive.ts";
+import { QwenTranscriptService } from "../../../src/ru-fork/qwen-transcript/QwenTranscriptService.ts";
+import { resolveTranscriptFilePath } from "../../../src/ru-fork/qwen-transcript/paths.ts";
+
+const THREAD_ID = ThreadId.make("thread-x");
+
+const userLine = (sessionId: string, cwd: string, uuid = "u1") =>
+  JSON.stringify({
+    uuid,
+    parentUuid: null,
+    sessionId,
+    timestamp: "2026-01-01T00:00:00.000Z",
+    cwd,
+    type: "user",
+    message: { parts: [{ text: "hi" }] },
+  });
+
+const assistantLine = (sessionId: string, cwd: string, uuid = "a1") =>
+  JSON.stringify({
+    uuid,
+    parentUuid: "u1",
+    sessionId,
+    timestamp: "2026-01-01T00:00:01.000Z",
+    cwd,
+    type: "assistant",
+    model: "claude-opus-4",
+    message: { parts: [{ text: "hello" }] },
+  });
+
+// Mock projection: optionally resolve a thread cwd (workspaceRoot + worktreePath).
+const projectionLayer = (
+  ctx: Option.Option<string> | "fail",
+  worktreePath: string | null = null,
+) =>
+  Layer.succeed(ProjectionSnapshotQuery, {
+    getThreadCheckpointContext: () =>
+      ctx === "fail"
+        ? Effect.fail("boom")
+        : Effect.succeed(
+            Option.map(ctx, (workspaceRoot) => ({
+              threadId: THREAD_ID,
+              projectId: ProjectId.make("p1"),
+              workspaceRoot,
+              worktreePath,
+              checkpoints: [],
+            })),
+          ),
+  } as unknown as ProjectionSnapshotQueryShape);
+
+// Mock directory: optionally expose a resume sessionId.
+const directoryLayer = (sessionId: string | null) =>
+  directoryWith(sessionId ? { schemaVersion: 1, sessionId } : null);
+
+// Mock directory with an arbitrary resume cursor, or no binding at all.
+const directoryWith = (resumeCursor: unknown | "no-binding") =>
+  Layer.succeed(ProviderSessionDirectory, {
+    getBinding: () =>
+      Effect.succeed(
+        resumeCursor === "no-binding"
+          ? Option.none()
+          : Option.some({
+              threadId: THREAD_ID,
+              provider: ProviderDriverKind.make("cli"),
+              resumeCursor,
+            }),
+      ),
+  } as unknown as ProviderSessionDirectoryShape);
+
+const TestLayer = ServerConfig.layerTest(process.cwd(), { prefix: "t3-transcript-cfg-" }).pipe(
+  Layer.provideMerge(NodeServices.layer),
+);
+
+it.layer(TestLayer)("QwenTranscriptLive", (it) => {
+  // Build a fresh service with the given mocked thread cwd + sessionId.
+  const getService = (cwd: Option.Option<string> | "fail", sessionId: string | null) =>
+    Effect.service(QwenTranscriptService).pipe(
+      Effect.provide(
+        QwenTranscriptLive.pipe(
+          Layer.provide(projectionLayer(cwd)),
+          Layer.provide(directoryLayer(sessionId)),
+        ),
+      ),
+    );
+
+  const filePathFor = (cwd: string, sessionId: string, runtimeOutputDirSetting?: string) =>
+    Effect.gen(function* () {
+      const config = yield* ServerConfig;
+      return resolveTranscriptFilePath({
+        env: process.env,
+        cliConfigDir: config.cliConfigDir,
+        cwd,
+        runtimeOutputDirSetting,
+        sessionId,
+      });
+    });
+
+  const writeFile = (filePath: string, content: string) =>
+    Effect.gen(function* () {
+      const fs = yield* FileSystem.FileSystem;
+      const path = yield* Path.Path;
+      yield* fs.makeDirectory(path.dirname(filePath), { recursive: true });
+      yield* fs.writeFileString(filePath, content);
+    });
+
+  const mkCwd = Effect.gen(function* () {
+    const fs = yield* FileSystem.FileSystem;
+    return yield* fs.makeTempDirectoryScoped({ prefix: "t3-transcript-cwd-" });
+  });
+
+  it.effect("emits a snapshot of an existing transcript", () =>
+    Effect.gen(function* () {
+      const cwd = yield* mkCwd;
+      const sessionId = "sess-1";
+      const filePath = yield* filePathFor(cwd, sessionId);
+      yield* writeFile(filePath, `${userLine(sessionId, cwd)}\n${assistantLine(sessionId, cwd)}\n`);
+
+      const svc = yield* getService(Option.some(cwd), sessionId);
+      const head = yield* Stream.runHead(svc.subscribe(THREAD_ID));
+
+      const item = Option.getOrThrow(head);
+      expect(item.kind).toBe("snapshot");
+      expect(item.records.map((r) => r.type)).toEqual(["user", "assistant"]);
+      expect(item.records[0]).toMatchObject({ parts: [{ kind: "text", text: "hi" }] });
+    }),
+  );
+
+  it.effect("emits an empty snapshot when the file does not exist yet", () =>
+    Effect.gen(function* () {
+      const cwd = yield* mkCwd;
+      const svc = yield* getService(Option.some(cwd), "sess-missing");
+      const head = yield* Stream.runHead(svc.subscribe(THREAD_ID));
+      expect(Option.getOrThrow(head)).toEqual({ kind: "snapshot", records: [] });
+    }),
+  );
+
+  it.effect("emits an empty snapshot when the session id is not known yet", () =>
+    Effect.gen(function* () {
+      const cwd = yield* mkCwd;
+      const svc = yield* getService(Option.some(cwd), null);
+      const head = yield* Stream.runHead(svc.subscribe(THREAD_ID));
+      expect(Option.getOrThrow(head)).toEqual({ kind: "snapshot", records: [] });
+    }),
+  );
+
+  it.effect("skips malformed lines and stays alive", () =>
+    Effect.gen(function* () {
+      const cwd = yield* mkCwd;
+      const sessionId = "sess-bad";
+      const filePath = yield* filePathFor(cwd, sessionId);
+      yield* writeFile(filePath, `${userLine(sessionId, cwd)}\n{not json}\n`);
+
+      const svc = yield* getService(Option.some(cwd), sessionId);
+      const head = yield* Stream.runHead(svc.subscribe(THREAD_ID));
+      const item = Option.getOrThrow(head);
+      expect(item.kind).toBe("snapshot");
+      expect(item.records).toHaveLength(1);
+    }),
+  );
+
+  it.effect("fails the stream when the thread cannot be resolved", () =>
+    Effect.gen(function* () {
+      const svc = yield* getService(Option.none(), "sess-x");
+      const exit = yield* Effect.exit(Stream.runHead(svc.subscribe(THREAD_ID)));
+      expect(Exit.isFailure(exit)).toBe(true);
+    }),
+  );
+
+  it.effect("fails the stream when the cwd lookup errors", () =>
+    Effect.gen(function* () {
+      const svc = yield* getService("fail", "sess-x");
+      const exit = yield* Effect.exit(Stream.runHead(svc.subscribe(THREAD_ID)));
+      expect(Exit.isFailure(exit)).toBe(true);
+    }),
+  );
+
+  it.effect("reads from advanced.runtimeOutputDir override, not cliConfigDir", () =>
+    Effect.gen(function* () {
+      const fs = yield* FileSystem.FileSystem;
+      const path = yield* Path.Path;
+      const cwd = yield* mkCwd;
+      const overrideDir = yield* fs.makeTempDirectoryScoped({ prefix: "t3-transcript-rt-" });
+      const sessionId = "sess-override";
+
+      // Workspace settings.json points the runtime base at overrideDir.
+      yield* fs.makeDirectory(path.join(cwd, ".qwen"), { recursive: true });
+      yield* fs.writeFileString(
+        path.join(cwd, ".qwen", "settings.json"),
+        JSON.stringify({ advanced: { runtimeOutputDir: overrideDir } }),
+      );
+
+      // Transcript written under the OVERRIDE dir.
+      const filePath = yield* filePathFor(cwd, sessionId, overrideDir);
+      yield* writeFile(filePath, `${userLine(sessionId, cwd)}\n`);
+
+      const svc = yield* getService(Option.some(cwd), sessionId);
+      const head = yield* Stream.runHead(svc.subscribe(THREAD_ID));
+      const item = Option.getOrThrow(head);
+      expect(item.kind).toBe("snapshot");
+      expect(item.records).toHaveLength(1);
+    }),
+  );
+
+  it.effect("uses worktreePath when present (over workspaceRoot)", () =>
+    Effect.gen(function* () {
+      const worktree = yield* mkCwd;
+      const sessionId = "sess-wt";
+      const filePath = yield* filePathFor(worktree, sessionId);
+      yield* writeFile(filePath, `${userLine(sessionId, worktree)}\n`);
+
+      const svc = yield* Effect.service(QwenTranscriptService).pipe(
+        Effect.provide(
+          QwenTranscriptLive.pipe(
+            // workspaceRoot is a bogus dir; worktreePath is where the file lives.
+            Layer.provide(projectionLayer(Option.some("/nonexistent-workspace"), worktree)),
+            Layer.provide(directoryLayer(sessionId)),
+          ),
+        ),
+      );
+      const head = yield* Stream.runHead(svc.subscribe(THREAD_ID));
+      expect(Option.getOrThrow(head).records).toHaveLength(1);
+    }),
+  );
+
+  it.effect("emits an empty snapshot when no provider binding exists", () =>
+    Effect.gen(function* () {
+      const cwd = yield* mkCwd;
+      const svc = yield* Effect.service(QwenTranscriptService).pipe(
+        Effect.provide(
+          QwenTranscriptLive.pipe(
+            Layer.provide(projectionLayer(Option.some(cwd))),
+            Layer.provide(directoryWith("no-binding")),
+          ),
+        ),
+      );
+      const head = yield* Stream.runHead(svc.subscribe(THREAD_ID));
+      expect(Option.getOrThrow(head)).toEqual({ kind: "snapshot", records: [] });
+    }),
+  );
+
+  it.effect("treats unparseable resume cursors as no session", () =>
+    Effect.gen(function* () {
+      const cwd = yield* mkCwd;
+      const badCursors: unknown[] = [
+        { schemaVersion: 2, sessionId: "x" },
+        { schemaVersion: 1, sessionId: 123 },
+        { schemaVersion: 1, sessionId: "" },
+      ];
+      for (const resumeCursor of badCursors) {
+        const svc = yield* Effect.service(QwenTranscriptService).pipe(
+          Effect.provide(
+            QwenTranscriptLive.pipe(
+              Layer.provide(projectionLayer(Option.some(cwd))),
+              Layer.provide(directoryWith(resumeCursor)),
+            ),
+          ),
+        );
+        const head = yield* Stream.runHead(svc.subscribe(THREAD_ID));
+        expect(Option.getOrThrow(head)).toEqual({ kind: "snapshot", records: [] });
+      }
+    }),
+  );
+});
+
+// Real-clock test: fs.watch / poll / sleep advance in wall-clock time, so we
+// observe a genuine live append (it.live runs outside the it.layer context, so
+// this test provides its own layer + Scope).
+it.live("streams a live append after the snapshot", () =>
+  Effect.gen(function* () {
+    const fs = yield* FileSystem.FileSystem;
+    const path = yield* Path.Path;
+    const config = yield* ServerConfig;
+    const cwd = yield* fs.makeTempDirectoryScoped({ prefix: "t3-transcript-live-" });
+    const sessionId = "sess-live";
+    const filePath = resolveTranscriptFilePath({
+      env: process.env,
+      cliConfigDir: config.cliConfigDir,
+      cwd,
+      runtimeOutputDirSetting: undefined,
+      sessionId,
+    });
+    yield* fs.makeDirectory(path.dirname(filePath), { recursive: true });
+    yield* fs.writeFileString(filePath, `${userLine(sessionId, cwd)}\n`);
+
+    const svc = yield* Effect.service(QwenTranscriptService).pipe(
+      Effect.provide(
+        QwenTranscriptLive.pipe(
+          Layer.provide(projectionLayer(Option.some(cwd))),
+          Layer.provide(directoryLayer(sessionId)),
+        ),
+      ),
+    );
+
+    // Append a record shortly after subscribing; the collector blocks until 2 items.
+    yield* Effect.forkScoped(
+      Effect.gen(function* () {
+        yield* Effect.sleep(Duration.millis(300));
+        yield* fs.writeFileString(
+          filePath,
+          `${userLine(sessionId, cwd)}\n${assistantLine(sessionId, cwd)}\n`,
+        );
+      }),
+    );
+
+    const items = (yield* Stream.runCollect(
+      Stream.take(svc.subscribe(THREAD_ID), 2),
+    )) as TranscriptStreamItem[];
+    expect(items[0]?.kind).toBe("snapshot");
+    expect(items[0]?.records.map((r) => r.uuid)).toEqual(["u1"]);
+    expect(items[1]?.kind).toBe("append");
+    expect(items[1]?.records.map((r) => r.uuid)).toEqual(["a1"]);
+  }).pipe(Effect.scoped, Effect.provide(TestLayer)),
+);
diff --git a/apps/server/tests/ru-fork/qwen-transcript/cliSettings.test.ts b/apps/server/tests/ru-fork/qwen-transcript/cliSettings.test.ts
new file mode 100644
index 00000000000..435545d7257
--- /dev/null
+++ b/apps/server/tests/ru-fork/qwen-transcript/cliSettings.test.ts
@@ -0,0 +1,94 @@
+import * as NodeServices from "@effect/platform-node/NodeServices";
+import { describe, expect, it } from "@effect/vitest";
+import * as Effect from "effect/Effect";
+import * as FileSystem from "effect/FileSystem";
+import * as Path from "effect/Path";
+
+import {
+  pickRuntimeOutputDir,
+  readRuntimeOutputDirOverride,
+} from "../../../src/ru-fork/qwen-transcript/cliSettings.ts";
+
+describe("pickRuntimeOutputDir", () => {
+  it("returns the string value", () => {
+    expect(pickRuntimeOutputDir({ advanced: { runtimeOutputDir: "/x" } })).toBe("/x");
+  });
+  it("returns undefined when advanced is missing", () => {
+    expect(pickRuntimeOutputDir({})).toBeUndefined();
+  });
+  it("returns undefined when runtimeOutputDir is missing", () => {
+    expect(pickRuntimeOutputDir({ advanced: {} })).toBeUndefined();
+  });
+  it("returns undefined for non-object input", () => {
+    expect(pickRuntimeOutputDir(null)).toBeUndefined();
+    expect(pickRuntimeOutputDir("str")).toBeUndefined();
+    expect(pickRuntimeOutputDir({ advanced: 5 })).toBeUndefined();
+  });
+  it("returns undefined for an empty/whitespace value", () => {
+    expect(pickRuntimeOutputDir({ advanced: { runtimeOutputDir: "   " } })).toBeUndefined();
+  });
+});
+
+const writeSettings = (dir: string, content: string) =>
+  Effect.gen(function* () {
+    const fs = yield* FileSystem.FileSystem;
+    const path = yield* Path.Path;
+    yield* fs.makeDirectory(dir, { recursive: true });
+    yield* fs.writeFileString(path.join(dir, "settings.json"), content);
+  });
+
+it.layer(NodeServices.layer)("readRuntimeOutputDirOverride", (it) => {
+  const setup = Effect.gen(function* () {
+    const fs = yield* FileSystem.FileSystem;
+    const path = yield* Path.Path;
+    const root = yield* fs.makeTempDirectoryScoped({ prefix: "t3-cli-settings-" });
+    const cliConfigDir = path.join(root, "global");
+    const cwd = path.join(root, "cwd");
+    return { fs, path, cliConfigDir, cwd };
+  });
+
+  it.effect("reads the global setting", () =>
+    Effect.gen(function* () {
+      const { fs, path, cliConfigDir, cwd } = yield* setup;
+      yield* writeSettings(cliConfigDir, JSON.stringify({ advanced: { runtimeOutputDir: "/g" } }));
+      const result = yield* readRuntimeOutputDirOverride(fs, path, cliConfigDir, cwd);
+      expect(result).toBe("/g");
+    }),
+  );
+
+  it.effect("reads the workspace setting", () =>
+    Effect.gen(function* () {
+      const { fs, path, cliConfigDir, cwd } = yield* setup;
+      yield* writeSettings(path.join(cwd, ".qwen"), JSON.stringify({ advanced: { runtimeOutputDir: "/w" } }));
+      const result = yield* readRuntimeOutputDirOverride(fs, path, cliConfigDir, cwd);
+      expect(result).toBe("/w");
+    }),
+  );
+
+  it.effect("workspace overrides global", () =>
+    Effect.gen(function* () {
+      const { fs, path, cliConfigDir, cwd } = yield* setup;
+      yield* writeSettings(cliConfigDir, JSON.stringify({ advanced: { runtimeOutputDir: "/g" } }));
+      yield* writeSettings(path.join(cwd, ".qwen"), JSON.stringify({ advanced: { runtimeOutputDir: "/w" } }));
+      const result = yield* readRuntimeOutputDirOverride(fs, path, cliConfigDir, cwd);
+      expect(result).toBe("/w");
+    }),
+  );
+
+  it.effect("returns undefined when neither file exists", () =>
+    Effect.gen(function* () {
+      const { fs, path, cliConfigDir, cwd } = yield* setup;
+      const result = yield* readRuntimeOutputDirOverride(fs, path, cliConfigDir, cwd);
+      expect(result).toBeUndefined();
+    }),
+  );
+
+  it.effect("treats malformed JSON as undefined", () =>
+    Effect.gen(function* () {
+      const { fs, path, cliConfigDir, cwd } = yield* setup;
+      yield* writeSettings(cliConfigDir, "{not json");
+      const result = yield* readRuntimeOutputDirOverride(fs, path, cliConfigDir, cwd);
+      expect(result).toBeUndefined();
+    }),
+  );
+});
diff --git a/apps/server/tests/ru-fork/qwen-transcript/parse.test.ts b/apps/server/tests/ru-fork/qwen-transcript/parse.test.ts
new file mode 100644
index 00000000000..0c20efb7cf2
--- /dev/null
+++ b/apps/server/tests/ru-fork/qwen-transcript/parse.test.ts
@@ -0,0 +1,373 @@
+import { describe, expect, it } from "vitest";
+
+import {
+  normalizeRecord,
+  parseAndNormalize,
+  parseTranscriptJsonl,
+} from "../../../src/ru-fork/qwen-transcript/parse.ts";
+
+const baseRow = (over: Record<string, unknown>): Record<string, unknown> => ({
+  uuid: "u1",
+  parentUuid: null,
+  sessionId: "s1",
+  timestamp: "2026-01-01T00:00:00.000Z",
+  cwd: "/work",
+  ...over,
+});
+
+describe("parseTranscriptJsonl", () => {
+  it("parses one object per line and skips blank lines", () => {
+    const text = '{"a":1}\n\n  \n{"b":2}\n';
+    const { rows, errorCount } = parseTranscriptJsonl(text);
+    expect(rows).toEqual([{ a: 1 }, { b: 2 }]);
+    expect(errorCount).toBe(0);
+  });
+
+  it("counts malformed lines and skips them", () => {
+    const text = '{"a":1}\n{not json}\n{"b":2}';
+    const { rows, errorCount } = parseTranscriptJsonl(text);
+    expect(rows).toEqual([{ a: 1 }, { b: 2 }]);
+    expect(errorCount).toBe(1);
+  });
+
+  it("counts non-object JSON values as errors", () => {
+    const { rows, errorCount } = parseTranscriptJsonl("123\n[1,2]\n{\"ok\":true}");
+    expect(rows).toEqual([{ ok: true }]);
+    expect(errorCount).toBe(2);
+  });
+
+  it("returns empty for empty input", () => {
+    expect(parseTranscriptJsonl("")).toEqual({ rows: [], errorCount: 0 });
+  });
+});
+
+describe("normalizeRecord — base validation", () => {
+  it("returns null without uuid/sessionId/timestamp", () => {
+    expect(normalizeRecord({ type: "user" })).toBeNull();
+    expect(normalizeRecord({ type: "user", uuid: "u" })).toBeNull();
+    expect(normalizeRecord({ type: "user", uuid: "u", sessionId: "s" })).toBeNull();
+  });
+
+  it("returns null for an unknown type", () => {
+    expect(normalizeRecord(baseRow({ type: "mystery" }))).toBeNull();
+  });
+
+  it("keeps a string parentUuid and defaults non-strings to null", () => {
+    const withParent = normalizeRecord(baseRow({ type: "user", parentUuid: "p1" }));
+    expect(withParent?.parentUuid).toBe("p1");
+    const noParent = normalizeRecord(baseRow({ type: "user", parentUuid: 42 }));
+    expect(noParent?.parentUuid).toBeNull();
+  });
+
+  it("carries gitBranch only when present", () => {
+    expect(normalizeRecord(baseRow({ type: "user", gitBranch: "main" }))).toMatchObject({
+      gitBranch: "main",
+    });
+    expect(normalizeRecord(baseRow({ type: "user" }))).not.toHaveProperty("gitBranch");
+  });
+});
+
+describe("normalizeRecord — parts", () => {
+  it("normalizes text / thought / function_call / function_response / inline_data / unknown", () => {
+    const record = normalizeRecord(
+      baseRow({
+        type: "user",
+        message: {
+          parts: [
+            { text: "hello" },
+            { thought: true, text: "thinking" },
+            { functionCall: { name: "Edit", args: { file: "a" } } },
+            { functionResponse: { name: "Edit", response: { ok: true } } },
+            { inlineData: { mimeType: "image/png" } },
+            { somethingElse: 1 },
+            "raw-string",
+          ],
+        },
+      }),
+    );
+    expect(record?.type).toBe("user");
+    expect(record && "parts" in record ? record.parts : []).toEqual([
+      { kind: "text", text: "hello" },
+      { kind: "thought", text: "thinking" },
+      { kind: "function_call", name: "Edit", args: { file: "a" } },
+      { kind: "function_response", name: "Edit", response: { ok: true } },
+      { kind: "inline_data", mimeType: "image/png" },
+      { kind: "unknown", raw: { somethingElse: 1 } },
+      { kind: "unknown", raw: "raw-string" },
+    ]);
+  });
+
+  it("returns [] parts when message is missing or parts is not an array", () => {
+    expect(normalizeRecord(baseRow({ type: "user" }))).toMatchObject({ parts: [] });
+    expect(normalizeRecord(baseRow({ type: "user", message: { parts: "nope" } }))).toMatchObject({
+      parts: [],
+    });
+  });
+
+  it("defaults a thought part with no text to empty string", () => {
+    const record = normalizeRecord(
+      baseRow({ type: "user", message: { parts: [{ thought: true }] } }),
+    );
+    expect(record && "parts" in record ? record.parts : []).toEqual([{ kind: "thought", text: "" }]);
+  });
+});
+
+describe("normalizeRecord — assistant", () => {
+  it("maps model, contextWindowSize and usage", () => {
+    const record = normalizeRecord(
+      baseRow({
+        type: "assistant",
+        model: "claude-opus-4",
+        contextWindowSize: 200000,
+        usageMetadata: {
+          promptTokenCount: 10,
+          cachedInputTokenCount: 2,
+          candidatesTokenCount: 5,
+          totalTokenCount: 17,
+        },
+      }),
+    );
+    expect(record).toMatchObject({
+      type: "assistant",
+      model: "claude-opus-4",
+      contextWindowSize: 200000,
+      usage: { promptTokens: 10, cachedTokens: 2, outputTokens: 5, totalTokens: 17 },
+    });
+  });
+
+  it("omits usage when usageMetadata is absent or empty", () => {
+    expect(normalizeRecord(baseRow({ type: "assistant" }))).not.toHaveProperty("usage");
+    expect(normalizeRecord(baseRow({ type: "assistant", usageMetadata: {} }))).not.toHaveProperty(
+      "usage",
+    );
+  });
+});
+
+describe("normalizeRecord — tool_result display variants", () => {
+  const toolResult = (resultDisplay: unknown, extra: Record<string, unknown> = {}) =>
+    normalizeRecord(
+      baseRow({ type: "tool_result", toolCallResult: { callId: "c1", status: "success", resultDisplay, ...extra } }),
+    );
+
+  it("string display → text", () => {
+    expect(toolResult("done")).toMatchObject({
+      toolCall: { callId: "c1", status: "success", display: { kind: "text", text: "done" } },
+    });
+  });
+
+  it("file_diff display", () => {
+    expect(
+      toolResult({
+        fileName: "a.ts",
+        fileDiff: "@@",
+        originalContent: "old",
+        newContent: "new",
+        diffStat: { added: 1 },
+      }),
+    ).toMatchObject({
+      toolCall: {
+        display: {
+          kind: "file_diff",
+          fileName: "a.ts",
+          fileDiff: "@@",
+          originalContent: "old",
+          newContent: "new",
+          diffStat: { added: 1 },
+        },
+      },
+    });
+  });
+
+  it("file_diff with non-string originalContent becomes null", () => {
+    const record = toolResult({ fileName: "a", fileDiff: "d", newContent: "n" });
+    const display = record && "toolCall" in record ? record.toolCall?.display : undefined;
+    expect(display).toMatchObject({ kind: "file_diff", originalContent: null });
+  });
+
+  it("todo_list display (with invalid status defaulting to pending)", () => {
+    const record = toolResult({
+      type: "todo_list",
+      todos: [
+        { id: "1", content: "a", status: "completed" },
+        { id: "2", content: "b", status: "bogus" },
+        "not-an-object",
+      ],
+    });
+    const display = record && "toolCall" in record ? record.toolCall?.display : undefined;
+    expect(display).toEqual({
+      kind: "todo_list",
+      todos: [
+        { id: "1", content: "a", status: "completed" },
+        { id: "2", content: "b", status: "pending" },
+      ],
+    });
+  });
+
+  it("plan_summary display (+ rejected)", () => {
+    expect(
+      toolResult({ type: "plan_summary", message: "m", plan: "p", rejected: true }),
+    ).toMatchObject({ toolCall: { display: { kind: "plan_summary", message: "m", plan: "p", rejected: true } } });
+  });
+
+  it("task_execution display (+ result + toolCalls)", () => {
+    expect(
+      toolResult({
+        type: "task_execution",
+        subagentName: "explorer",
+        status: "completed",
+        taskDescription: "look",
+        result: "found",
+        toolCalls: [{ callId: "x" }],
+      }),
+    ).toMatchObject({
+      toolCall: {
+        display: {
+          kind: "task_execution",
+          subagentName: "explorer",
+          status: "completed",
+          taskDescription: "look",
+          result: "found",
+          toolCalls: [{ callId: "x" }],
+        },
+      },
+    });
+  });
+
+  it("mcp_tool_progress display (+ total + message)", () => {
+    expect(
+      toolResult({ type: "mcp_tool_progress", progress: 3, total: 10, message: "half" }),
+    ).toMatchObject({
+      toolCall: { display: { kind: "mcp_progress", progress: 3, total: 10, message: "half" } },
+    });
+  });
+
+  it("ansiOutput display → ansi", () => {
+    expect(toolResult({ ansiOutput: [["x"]] })).toMatchObject({
+      toolCall: { display: { kind: "ansi", raw: [["x"]] } },
+    });
+  });
+
+  it("unrecognized object display → unknown", () => {
+    expect(toolResult({ type: "future_kind" })).toMatchObject({
+      toolCall: { display: { kind: "unknown" } },
+    });
+  });
+
+  it("drops an invalid status and omits display when absent", () => {
+    const record = normalizeRecord(
+      baseRow({ type: "tool_result", toolCallResult: { callId: "c", status: "bogus" } }),
+    );
+    const toolCall = record && "toolCall" in record ? record.toolCall : undefined;
+    expect(toolCall).toEqual({ callId: "c" });
+  });
+
+  it("omits toolCall entirely when toolCallResult is absent", () => {
+    expect(normalizeRecord(baseRow({ type: "tool_result" }))).not.toHaveProperty("toolCall");
+  });
+});
+
+describe("normalizeRecord — system", () => {
+  it("keeps a known subtype and payload", () => {
+    expect(
+      normalizeRecord(
+        baseRow({ type: "system", subtype: "chat_compression", systemPayload: { info: 1 } }),
+      ),
+    ).toMatchObject({ type: "system", subtype: "chat_compression", payload: { info: 1 } });
+  });
+
+  it("drops an unknown subtype but stays a system record", () => {
+    const record = normalizeRecord(baseRow({ type: "system", subtype: "future" }));
+    expect(record).toMatchObject({ type: "system" });
+    expect(record).not.toHaveProperty("subtype");
+  });
+});
+
+describe("normalizeRecord — defensive defaults for missing fields", () => {
+  const display = (resultDisplay: unknown) => {
+    const record = normalizeRecord(baseRow({ type: "tool_result", toolCallResult: { resultDisplay } }));
+    return record && "toolCall" in record ? record.toolCall?.display : undefined;
+  };
+
+  it("defaults cwd to empty string when absent", () => {
+    const record = normalizeRecord({ uuid: "u", sessionId: "s", timestamp: "t", type: "user" });
+    expect(record).toMatchObject({ cwd: "" });
+  });
+
+  it("defaults function_call / function_response / inline_data fields when absent", () => {
+    const record = normalizeRecord(
+      baseRow({
+        type: "user",
+        message: { parts: [{ functionCall: {} }, { functionResponse: {} }, { inlineData: {} }] },
+      }),
+    );
+    expect(record && "parts" in record ? record.parts : []).toEqual([
+      { kind: "function_call", name: "", args: undefined },
+      { kind: "function_response", name: "", response: undefined },
+      { kind: "inline_data", mimeType: "" },
+    ]);
+  });
+
+  it("plan_summary with no fields → empty strings, no rejected", () => {
+    expect(display({ type: "plan_summary" })).toEqual({ kind: "plan_summary", message: "", plan: "" });
+  });
+
+  it("task_execution with no optionals → empty strings, no result/toolCalls", () => {
+    expect(display({ type: "task_execution" })).toEqual({
+      kind: "task_execution",
+      subagentName: "",
+      status: "",
+      taskDescription: "",
+    });
+  });
+
+  it("mcp_tool_progress with no fields → progress 0, no total/message", () => {
+    expect(display({ type: "mcp_tool_progress" })).toEqual({ kind: "mcp_progress", progress: 0 });
+  });
+
+  it("todo_list with non-array todos → unknown", () => {
+    expect(display({ type: "todo_list" })).toMatchObject({ kind: "unknown" });
+  });
+
+  it("file_diff with no fileName/newContent → empty strings, null original", () => {
+    expect(display({ fileDiff: "@@" })).toEqual({
+      kind: "file_diff",
+      fileName: "",
+      fileDiff: "@@",
+      originalContent: null,
+      newContent: "",
+    });
+  });
+
+  it("todo_list maps the in_progress status", () => {
+    expect(display({ type: "todo_list", todos: [{ id: "1", content: "c", status: "in_progress" }] })).toEqual({
+      kind: "todo_list",
+      todos: [{ id: "1", content: "c", status: "in_progress" }],
+    });
+  });
+
+  it("non-object, non-string display → unknown", () => {
+    expect(display(42)).toEqual({ kind: "unknown", raw: 42 });
+  });
+
+  it("todo item missing id/content → empty strings", () => {
+    expect(display({ type: "todo_list", todos: [{ status: "completed" }] })).toEqual({
+      kind: "todo_list",
+      todos: [{ id: "", content: "", status: "completed" }],
+    });
+  });
+});
+
+describe("parseAndNormalize", () => {
+  it("parses + normalizes + drops unusable rows in order", () => {
+    const text = [
+      JSON.stringify(baseRow({ uuid: "a", type: "user", message: { parts: [{ text: "hi" }] } })),
+      JSON.stringify({ type: "user" }), // missing ids → dropped
+      "{bad json}", // malformed → dropped
+      JSON.stringify(baseRow({ uuid: "b", type: "assistant", model: "m" })),
+    ].join("\n");
+    const records = parseAndNormalize(text);
+    expect(records.map((r) => r.uuid)).toEqual(["a", "b"]);
+    expect(records[0]?.type).toBe("user");
+    expect(records[1]?.type).toBe("assistant");
+  });
+});
diff --git a/apps/server/tests/ru-fork/qwen-transcript/paths.test.ts b/apps/server/tests/ru-fork/qwen-transcript/paths.test.ts
new file mode 100644
index 00000000000..3c1d8bef550
--- /dev/null
+++ b/apps/server/tests/ru-fork/qwen-transcript/paths.test.ts
@@ -0,0 +1,113 @@
+// @effect-diagnostics nodeBuiltinImport:off
+import * as os from "node:os";
+import * as path from "node:path";
+
+import { describe, expect, it } from "vitest";
+
+import {
+  expandRuntimeBaseDir,
+  resolveChatsDir,
+  resolveTranscriptBaseDir,
+  resolveTranscriptFilePath,
+  sanitizeCwd,
+  type TranscriptBaseInput,
+} from "../../../src/ru-fork/qwen-transcript/paths.ts";
+
+const base = (overrides: Partial<TranscriptBaseInput>): TranscriptBaseInput => ({
+  env: {},
+  cliConfigDir: "/home/user/.qwen",
+  cwd: "/work/project",
+  runtimeOutputDirSetting: undefined,
+  ...overrides,
+});
+
+describe("sanitizeCwd", () => {
+  it("replaces every non-alphanumeric character with a hyphen", () => {
+    expect(sanitizeCwd("/Users/x/My Project.v2")).toBe("-Users-x-My-Project-v2");
+  });
+
+  it("preserves alphanumerics", () => {
+    expect(sanitizeCwd("abc123")).toBe("abc123");
+  });
+
+  it("lowercases on win32", () => {
+    expect(sanitizeCwd("C:\\Foo", "win32")).toBe("c--foo");
+  });
+});
+
+describe("expandRuntimeBaseDir", () => {
+  it("expands a bare tilde to the home directory", () => {
+    expect(expandRuntimeBaseDir("~", "/work")).toBe(os.homedir());
+  });
+
+  it("expands ~/segment relative to home", () => {
+    expect(expandRuntimeBaseDir("~/foo/bar", "/work")).toBe(path.join(os.homedir(), "foo", "bar"));
+  });
+
+  it("expands ~\\segment (backslash) relative to home", () => {
+    expect(expandRuntimeBaseDir("~\\foo", "/work")).toBe(path.join(os.homedir(), "foo"));
+  });
+
+  it("resolves a relative path against cwd", () => {
+    expect(expandRuntimeBaseDir("out/dir", "/work")).toBe("/work/out/dir");
+  });
+
+  it("leaves an absolute path unchanged", () => {
+    expect(expandRuntimeBaseDir("/abs/dir", "/work")).toBe("/abs/dir");
+  });
+});
+
+describe("resolveTranscriptBaseDir", () => {
+  it("prefers an absolute QWEN_RUNTIME_DIR env var", () => {
+    expect(resolveTranscriptBaseDir(base({ env: { QWEN_RUNTIME_DIR: "/custom/runtime" } }))).toBe(
+      "/custom/runtime",
+    );
+  });
+
+  it("expands a tilde QWEN_RUNTIME_DIR", () => {
+    expect(resolveTranscriptBaseDir(base({ env: { QWEN_RUNTIME_DIR: "~/rt" } }))).toBe(
+      path.join(os.homedir(), "rt"),
+    );
+  });
+
+  it("resolves a relative QWEN_RUNTIME_DIR against cwd", () => {
+    expect(
+      resolveTranscriptBaseDir(base({ env: { QWEN_RUNTIME_DIR: "rt" }, cwd: "/c" })),
+    ).toBe("/c/rt");
+  });
+
+  it("ignores a whitespace-only QWEN_RUNTIME_DIR and falls through", () => {
+    expect(resolveTranscriptBaseDir(base({ env: { QWEN_RUNTIME_DIR: "   " } }))).toBe(
+      "/home/user/.qwen",
+    );
+  });
+
+  it("uses the runtimeOutputDir setting when no env var", () => {
+    expect(resolveTranscriptBaseDir(base({ runtimeOutputDirSetting: "/setting/dir" }))).toBe(
+      "/setting/dir",
+    );
+  });
+
+  it("expands a relative runtimeOutputDir setting against cwd", () => {
+    expect(
+      resolveTranscriptBaseDir(base({ runtimeOutputDirSetting: "rel", cwd: "/c" })),
+    ).toBe("/c/rel");
+  });
+
+  it("falls back to cliConfigDir when nothing is set", () => {
+    expect(resolveTranscriptBaseDir(base({}))).toBe("/home/user/.qwen");
+  });
+});
+
+describe("resolveChatsDir / resolveTranscriptFilePath", () => {
+  it("assembles <base>/projects/<sanitizeCwd(cwd)>/chats with no tmp segment or hash", () => {
+    const chatsDir = resolveChatsDir(base({ cwd: "/work/project" }));
+    expect(chatsDir).toBe("/home/user/.qwen/projects/-work-project/chats");
+    expect(chatsDir).not.toContain("/tmp/");
+  });
+
+  it("appends <sessionId>.jsonl", () => {
+    const filePath = resolveTranscriptFilePath(base({ cwd: "/work/project", sessionId: "abc-123" }));
+    expect(filePath).toBe("/home/user/.qwen/projects/-work-project/chats/abc-123.jsonl");
+  });
+});
diff --git a/apps/web/package.json b/apps/web/package.json
index 0bd03ee0bf4..e712d090152 100644
--- a/apps/web/package.json
+++ b/apps/web/package.json
@@ -30,6 +30,7 @@
     "@xterm/addon-fit": "0.11.0",
     "@xterm/xterm": "6.0.0",
     "class-variance-authority": "0.7.1",
+    "diff": "8.0.3",
     "effect": "catalog:",
     "lexical": "0.41.0",
     "lucide-react": "0.564.0",
diff --git a/apps/web/src/components/ChatView.tsx b/apps/web/src/components/ChatView.tsx
index 57cad25cd6d..3c3d1b0c9ff 100644
--- a/apps/web/src/components/ChatView.tsx
+++ b/apps/web/src/components/ChatView.tsx
@@ -155,6 +155,10 @@ import { flattenSubagentBuckets } from "../ru-fork/subagents/composerIntegration
 // command outside its ACP allowlist (otherwise -32603 "Internal error" crash).
 import { applyUnknownSlashCommandStripToComposer } from "../ru-fork/unsupported-slash-commands/applyUnknownSlashCommandStripToComposer";
 import { ChatHeader } from "./chat/ChatHeader";
+// ru-fork: advanced chat mode (qwen CLI transcript view).
+import { AdvancedMessagesTimeline } from "~/ru-fork/advanced-chat/AdvancedMessagesTimeline";
+import { useAdvancedChatMode } from "~/ru-fork/advanced-chat/advancedChatMode";
+import { useTranscriptSubscription } from "~/ru-fork/advanced-chat/useTranscriptSubscription";
 import { type ExpandedImagePreview } from "./chat/ExpandedImagePreview";
 import { NoActiveThreadState } from "./NoActiveThreadState";
 import { resolveEffectiveEnvMode, resolveEnvironmentOptionLabel } from "./BranchToolbar.logic";
@@ -1536,6 +1540,18 @@ export default function ChatView(props: ChatViewProps) {
   const activeProjectCwd = activeProject?.cwd ?? null;
   const activeThreadWorktreePath = activeThread?.worktreePath ?? null;
   const activeWorkspaceRoot = activeThreadWorktreePath ?? activeProjectCwd ?? undefined;
+  // ru-fork: advanced chat mode — render qwen's CLI transcript instead of the
+  // projection timeline. Per-thread toggle; transcript streamed read-only.
+  const advancedChatModeByThread = useAdvancedChatMode((state) => state.byThread);
+  const toggleAdvancedChatMode = useAdvancedChatMode((state) => state.toggle);
+  const advancedChatOpen = activeThread
+    ? Boolean(advancedChatModeByThread[activeThread.id])
+    : false;
+  const transcriptRecords = useTranscriptSubscription(
+    activeThread?.environmentId,
+    activeThread?.id,
+    advancedChatOpen,
+  );
   const activeTerminalLaunchContext =
     terminalLaunchContext?.threadId === activeThreadId
       ? terminalLaunchContext
@@ -1604,7 +1620,15 @@ export default function ChatView(props: ChatViewProps) {
         return diffOpen ? { ...rest, diff: undefined } : { ...rest, diff: "1" };
       },
     });
-  }, [diffOpen, environmentId, isServerThread, navigate, onDiffPanelOpen, setMcpPanelOpen, threadId]);
+  }, [
+    diffOpen,
+    environmentId,
+    isServerThread,
+    navigate,
+    onDiffPanelOpen,
+    setMcpPanelOpen,
+    threadId,
+  ]);
 
   const onToggleMcp = useCallback(() => {
     const next = !mcpPanelOpen;
@@ -3611,6 +3635,10 @@ export default function ChatView(props: ChatViewProps) {
           gitCwd={gitCwd}
           diffOpen={diffOpen}
           mcpPanelOpen={mcpPanelOpen}
+          advancedChatOpen={advancedChatOpen}
+          onToggleAdvancedChat={() => {
+            if (activeThread) toggleAdvancedChatMode(activeThread.id);
+          }}
           onRunProjectScript={runProjectScript}
           onAddProjectScript={saveProjectScript}
           onUpdateProjectScript={updateProjectScript}
@@ -3633,36 +3661,48 @@ export default function ChatView(props: ChatViewProps) {
         <div className="flex min-h-0 min-w-0 flex-1 flex-col">
           {/* Messages Wrapper */}
           <div className="relative flex min-h-0 flex-1 flex-col">
-            {/* Messages — LegendList handles virtualization and scrolling internally */}
-            <MessagesTimeline
-              key={activeThread.id}
-              isWorking={isWorking}
-              activeTurnInProgress={isWorking || !latestTurnSettled}
-              activeTurnId={activeLatestTurn?.turnId ?? null}
-              activeTurnStartedAt={activeWorkStartedAt}
-              listRef={legendListRef}
-              timelineEntries={timelineEntries}
-              completionDividerBeforeEntryId={completionDividerBeforeEntryId}
-              completionSummary={completionSummary}
-              turnDiffSummaryByAssistantMessageId={turnDiffSummaryByAssistantMessageId}
-              activeThreadEnvironmentId={activeThread.environmentId}
-              routeThreadKey={routeThreadKey}
-              onOpenTurnDiff={onOpenTurnDiff}
-              revertTurnCountByUserMessageId={revertTurnCountByUserMessageId}
-              onRevertUserMessage={onRevertUserMessage}
-              isRevertingCheckpoint={isRevertingCheckpoint}
-              onImageExpand={onExpandTimelineImage}
-              markdownCwd={gitCwd ?? undefined}
-              resolvedTheme={resolvedTheme}
-              timestampFormat={timestampFormat}
-              workspaceRoot={activeWorkspaceRoot}
-              skills={cwdSkillsFlat /* ru-fork: from filesystem scanner */}
-              subagents={cwdSubagentsFlat /* ru-fork: from filesystem scanner */}
-              onIsAtEndChange={onIsAtEndChange}
-            />
+            {/* ru-fork: advanced chat mode swaps the projection timeline for the
+                read-only qwen CLI transcript view; composer/approvals stay live. */}
+            {advancedChatOpen ? (
+              <AdvancedMessagesTimeline
+                key={`advanced-${activeThread.id}`}
+                records={transcriptRecords}
+                markdownCwd={gitCwd ?? undefined}
+              />
+            ) : (
+              <>
+                {/* Messages — LegendList handles virtualization and scrolling internally */}
+                <MessagesTimeline
+                  key={activeThread.id}
+                  isWorking={isWorking}
+                  activeTurnInProgress={isWorking || !latestTurnSettled}
+                  activeTurnId={activeLatestTurn?.turnId ?? null}
+                  activeTurnStartedAt={activeWorkStartedAt}
+                  listRef={legendListRef}
+                  timelineEntries={timelineEntries}
+                  completionDividerBeforeEntryId={completionDividerBeforeEntryId}
+                  completionSummary={completionSummary}
+                  turnDiffSummaryByAssistantMessageId={turnDiffSummaryByAssistantMessageId}
+                  activeThreadEnvironmentId={activeThread.environmentId}
+                  routeThreadKey={routeThreadKey}
+                  onOpenTurnDiff={onOpenTurnDiff}
+                  revertTurnCountByUserMessageId={revertTurnCountByUserMessageId}
+                  onRevertUserMessage={onRevertUserMessage}
+                  isRevertingCheckpoint={isRevertingCheckpoint}
+                  onImageExpand={onExpandTimelineImage}
+                  markdownCwd={gitCwd ?? undefined}
+                  resolvedTheme={resolvedTheme}
+                  timestampFormat={timestampFormat}
+                  workspaceRoot={activeWorkspaceRoot}
+                  skills={cwdSkillsFlat /* ru-fork: from filesystem scanner */}
+                  subagents={cwdSubagentsFlat /* ru-fork: from filesystem scanner */}
+                  onIsAtEndChange={onIsAtEndChange}
+                />
+              </>
+            )}
 
             {/* scroll to bottom pill — shown when user has scrolled away from the bottom */}
-            {showScrollToBottom && (
+            {!advancedChatOpen && showScrollToBottom && (
               <div className="pointer-events-none absolute bottom-1 left-1/2 z-30 flex -translate-x-1/2 justify-center py-1.5">
                 <button
                   type="button"
diff --git a/apps/web/src/components/chat/ChatHeader.tsx b/apps/web/src/components/chat/ChatHeader.tsx
index b67707cc289..2d27d4b362d 100644
--- a/apps/web/src/components/chat/ChatHeader.tsx
+++ b/apps/web/src/components/chat/ChatHeader.tsx
@@ -9,7 +9,7 @@ import { scopeThreadRef } from "@t3tools/client-runtime";
 import { memo } from "react";
 import GitActionsControl from "../GitActionsControl";
 import { type DraftId } from "~/composerDraftStore";
-import { BoxesIcon, DiffIcon, TerminalSquareIcon } from "lucide-react";
+import { BoxesIcon, DiffIcon, SparklesIcon, TerminalSquareIcon } from "lucide-react";
 import { Badge } from "../ui/badge";
 import { Tooltip, TooltipPopup, TooltipTrigger } from "../ui/tooltip";
 import ProjectScriptsControl, { type NewProjectScriptInput } from "../ProjectScriptsControl";
@@ -37,6 +37,9 @@ interface ChatHeaderProps {
   gitCwd: string | null;
   diffOpen: boolean;
   mcpPanelOpen: boolean;
+  // ru-fork: advanced chat mode (qwen transcript view) toggle.
+  advancedChatOpen: boolean;
+  onToggleAdvancedChat: () => void;
   onRunProjectScript: (script: ProjectScript) => void;
   onAddProjectScript: (input: NewProjectScriptInput) => Promise<void>;
   onUpdateProjectScript: (scriptId: string, input: NewProjectScriptInput) => Promise<void>;
@@ -65,6 +68,8 @@ export const ChatHeader = memo(function ChatHeader({
   gitCwd,
   diffOpen,
   mcpPanelOpen,
+  advancedChatOpen,
+  onToggleAdvancedChat,
   onRunProjectScript,
   onAddProjectScript,
   onUpdateProjectScript,
@@ -189,6 +194,24 @@ export const ChatHeader = memo(function ChatHeader({
           />
           <TooltipPopup side="bottom">Показать/скрыть панель MCP-серверов</TooltipPopup>
         </Tooltip>
+        {/* ru-fork: advanced chat mode — render the CLI transcript view. */}
+        <Tooltip>
+          <TooltipTrigger
+            render={
+              <Toggle
+                className="shrink-0"
+                pressed={advancedChatOpen}
+                onPressedChange={onToggleAdvancedChat}
+                aria-label="Toggle advanced chat view"
+                variant="outline"
+                size="xs"
+              >
+                <SparklesIcon className="size-3" />
+              </Toggle>
+            }
+          />
+          <TooltipPopup side="bottom">Расширенный чат (стенограмма CLI)</TooltipPopup>
+        </Tooltip>
       </div>
     </div>
   );
diff --git a/apps/web/src/rpc/wsRpcClient.ts b/apps/web/src/rpc/wsRpcClient.ts
index 57a190cb807..565e1643899 100644
--- a/apps/web/src/rpc/wsRpcClient.ts
+++ b/apps/web/src/rpc/wsRpcClient.ts
@@ -7,6 +7,7 @@ import {
   type LocalApi,
   ORCHESTRATION_WS_METHODS,
   type ServerSettingsPatch,
+  TRANSCRIPT_WS_METHOD,
   WS_METHODS,
 } from "@t3tools/contracts";
 import { applyGitStatusStreamEvent } from "@t3tools/shared/git";
@@ -150,6 +151,8 @@ export interface WsRpcClient {
     >;
     readonly subscribeShell: RpcStreamMethod<typeof ORCHESTRATION_WS_METHODS.subscribeShell>;
     readonly subscribeThread: RpcInputStreamMethod<typeof ORCHESTRATION_WS_METHODS.subscribeThread>;
+    // ru-fork: advanced chat mode — qwen transcript stream.
+    readonly subscribeTranscript: RpcInputStreamMethod<typeof TRANSCRIPT_WS_METHOD>;
   };
   // ru-fork: MCP catalog/bindings reads + runtime status. Mutations go through
   // `orchestration.dispatchCommand` (the 5 mcp.* commands).
@@ -317,6 +320,12 @@ export function createWsRpcClient(transport: WsTransport): WsRpcClient {
           listener,
           { ...options, tag: ORCHESTRATION_WS_METHODS.subscribeThread },
         ),
+      // ru-fork: advanced chat mode — qwen transcript stream.
+      subscribeTranscript: (input, listener, options) =>
+        transport.subscribe((client) => client[TRANSCRIPT_WS_METHOD](input), listener, {
+          ...options,
+          tag: TRANSCRIPT_WS_METHOD,
+        }),
     },
     mcp: {
       getSnapshot: (input) =>
diff --git a/apps/web/src/ru-fork/advanced-chat/AdvancedMessagesTimeline.tsx b/apps/web/src/ru-fork/advanced-chat/AdvancedMessagesTimeline.tsx
new file mode 100644
index 00000000000..57207d65dbb
--- /dev/null
+++ b/apps/web/src/ru-fork/advanced-chat/AdvancedMessagesTimeline.tsx
@@ -0,0 +1,124 @@
+// ru-fork: advanced chat mode timeline. Renders the merged transcript flow:
+// user bubbles, assistant text (no redundant label) with model/token/latency
+// badges, merged tool-step cards (call + result + telemetry), and system
+// dividers. Theme-safe semantic tokens; heavy content collapses, nothing clamps.
+import type { TranscriptRecord } from "@t3tools/contracts";
+import { InfoIcon } from "lucide-react";
+
+import { Badge } from "~/components/ui/badge";
+
+import { ToolStepCard } from "./ToolStep";
+import { TranscriptParts } from "./TranscriptParts";
+import { UserBubble } from "./UserBubble";
+import { buildTranscriptFlow, type AssistantFlowItem } from "./transcriptFlow";
+import type { SystemRecord } from "./transcriptTypes";
+
+const SYSTEM_LABELS: Record<NonNullable<SystemRecord["subtype"]>, string> = {
+  chat_compression: "Контекст сжат",
+  slash_command: "Slash-команда",
+  ui_telemetry: "Телеметрия",
+  at_command: "@-команда",
+};
+
+function formatLatency(ms: number | undefined): string | null {
+  if (ms === undefined) return null;
+  return ms < 1000 ? `${ms} мс` : `${(ms / 1000).toFixed(1)} с`;
+}
+
+function AssistantTurn({ item, cwd }: { item: AssistantFlowItem; cwd: string | undefined }) {
+  const { record } = item;
+  // function_call parts become tool steps; everything else renders as prose.
+  const textParts = record.parts.filter((part) => part.kind !== "function_call");
+  const usage = record.usage;
+  const latency = formatLatency(item.latencyMs);
+  const tokenBadges: Array<[string, number | undefined]> = [
+    ["вход", usage?.promptTokens],
+    ["кэш", usage?.cachedTokens],
+    ["выход", usage?.outputTokens],
+    ["Σ", usage?.totalTokens],
+  ];
+
+  return (
+    <div className="flex flex-col gap-2">
+      {textParts.length > 0 ? (
+        <div className="px-1">
+          <TranscriptParts parts={textParts} cwd={cwd} />
+        </div>
+      ) : null}
+      <div className="flex flex-wrap items-center gap-1 px-1">
+        {record.model ? (
+          <Badge variant="outline" size="sm" className="font-mono">
+            {record.model}
+          </Badge>
+        ) : null}
+        {tokenBadges.map(([label, value]) =>
+          value === undefined ? null : (
+            <Badge key={label} variant="outline" size="sm" className="font-mono">
+              {label} {value}
+            </Badge>
+          ),
+        )}
+        {latency ? (
+          <Badge variant="outline" size="sm" className="font-mono">
+            {latency}
+          </Badge>
+        ) : null}
+      </div>
+      {item.tools.map((step) => (
+        <ToolStepCard key={step.key} step={step} cwd={cwd} />
+      ))}
+    </div>
+  );
+}
+
+function SystemDivider({ record }: { record: SystemRecord }) {
+  const label = record.subtype ? SYSTEM_LABELS[record.subtype] : "Системное событие";
+  const date = new Date(record.timestamp);
+  const time = Number.isNaN(date.getTime()) ? "" : date.toLocaleTimeString();
+  return (
+    <div className="flex items-center gap-2 py-1 text-xs text-muted-foreground">
+      <span className="h-px flex-1 bg-border" />
+      <InfoIcon className="size-3.5" />
+      <span className="font-medium">{label}</span>
+      {time ? (
+        <span className="font-mono text-[0.7rem]" title={record.timestamp}>
+          {time}
+        </span>
+      ) : null}
+      <span className="h-px flex-1 bg-border" />
+    </div>
+  );
+}
+
+export function AdvancedMessagesTimeline({
+  records,
+  markdownCwd,
+}: {
+  records: ReadonlyArray<TranscriptRecord>;
+  markdownCwd: string | undefined;
+}) {
+  if (records.length === 0) {
+    return (
+      <div className="flex h-full items-center justify-center p-6 text-sm text-muted-foreground">
+        Пока нет записей в стенограмме CLI для этого диалога.
+      </div>
+    );
+  }
+  const flow = buildTranscriptFlow(records);
+  return (
+    <div className="h-full overflow-y-auto">
+      <div className="mx-auto flex max-w-3xl flex-col gap-4 px-3 py-4 sm:px-5">
+        {flow.map((item) => {
+          switch (item.kind) {
+            case "user":
+              return <UserBubble key={item.record.uuid} record={item.record} cwd={markdownCwd} />;
+            case "assistant":
+              return <AssistantTurn key={item.record.uuid} item={item} cwd={markdownCwd} />;
+            case "system":
+              return <SystemDivider key={item.record.uuid} record={item.record} />;
+          }
+        })}
+      </div>
+    </div>
+  );
+}
diff --git a/apps/web/src/ru-fork/advanced-chat/ToolStep.tsx b/apps/web/src/ru-fork/advanced-chat/ToolStep.tsx
new file mode 100644
index 00000000000..f88f6540bac
--- /dev/null
+++ b/apps/web/src/ru-fork/advanced-chat/ToolStep.tsx
@@ -0,0 +1,522 @@
+// ru-fork: advanced chat mode — one merged tool step (call + result + telemetry).
+// Header: tool name · status · duration. Body: command/args, diff (collapsed,
+// with +/- diffStat), result variants, and a visible reason for cancel/error.
+import { getFiletypeFromFileName, parsePatchFiles } from "@pierre/diffs";
+import { FileDiff } from "@pierre/diffs/react";
+import type { TranscriptPart, TranscriptToolDisplay } from "@t3tools/contracts";
+import { createTwoFilesPatch } from "diff";
+import {
+  AlertTriangleIcon,
+  CheckCircle2Icon,
+  ChevronDownIcon,
+  ChevronRightIcon,
+  CircleDashedIcon,
+  CircleIcon,
+  TerminalIcon,
+  WrenchIcon,
+} from "lucide-react";
+import { type ReactNode, useMemo, useState } from "react";
+
+import ChatMarkdown from "~/components/ChatMarkdown";
+import { Badge } from "~/components/ui/badge";
+import { useTheme } from "~/hooks/useTheme";
+import { resolveDiffThemeName } from "~/lib/diffRendering";
+import { cn } from "~/lib/utils";
+import { ADVANCED_CHAT_PENDING_PREVIEW, ADVANCED_CHAT_RICH_DIFF } from "~/ru-fork/config";
+
+import { Disclosure, JsonBlock } from "./transcriptVisuals";
+import type { ToolStep, ToolStepStatus } from "./transcriptFlow";
+
+type BadgeVariant = "secondary" | "success" | "error" | "info";
+
+const STATUS_META: Record<ToolStepStatus, { label: string; variant: BadgeVariant }> = {
+  success: { label: "успешно", variant: "success" },
+  error: { label: "ошибка", variant: "error" },
+  cancelled: { label: "отменено", variant: "secondary" },
+  running: { label: "выполняется", variant: "info" },
+};
+
+function formatDuration(ms: number | undefined): string | null {
+  if (ms === undefined) return null;
+  return ms < 1000 ? `${ms} мс` : `${(ms / 1000).toFixed(1)} с`;
+}
+
+function diffStatLabel(diffStat: unknown): ReactNode {
+  if (typeof diffStat !== "object" || diffStat === null) return null;
+  const stat = diffStat as Record<string, unknown>;
+  const added = typeof stat["model_added_lines"] === "number" ? stat["model_added_lines"] : 0;
+  const removed = typeof stat["model_removed_lines"] === "number" ? stat["model_removed_lines"] : 0;
+  if (added === 0 && removed === 0) return null;
+  return (
+    <span className="flex items-center gap-1.5 font-mono text-[0.7rem]">
+      <span className="text-success">+{added}</span>
+      <span className="text-destructive">−{removed}</span>
+    </span>
+  );
+}
+
+/** Raw fallback: the unified patch text, Shiki-highlighted, behind a disclosure. */
+function RawDiffView({
+  patch,
+  fileName,
+  diffStat,
+  cwd,
+}: {
+  patch: string;
+  fileName: string;
+  diffStat: unknown;
+  cwd: string | undefined;
+}) {
+  return (
+    <Disclosure
+      label={<code className="font-mono text-xs text-foreground">{fileName || "diff"}</code>}
+      meta={
+        diffStatLabel(diffStat) ?? (
+          <Badge variant="outline" size="sm">
+            diff
+          </Badge>
+        )
+      }
+    >
+      <ChatMarkdown text={`\`\`\`diff\n${patch}\n\`\`\``} cwd={cwd} />
+    </Disclosure>
+  );
+}
+
+/** Rich renderer: parse the unified patch and render @pierre/diffs FileDiff
+ *  (clean gutter, native collapse, theme-aware). Falls back to RawDiffView when
+ *  the patch can't be parsed. The diff worker pool is provided by the route. */
+function FileDiffView({
+  patch,
+  fileName,
+  diffStat,
+  cwd,
+}: {
+  patch: string;
+  fileName: string;
+  diffStat: unknown;
+  cwd: string | undefined;
+}) {
+  const { resolvedTheme } = useTheme();
+  const [collapsed, setCollapsed] = useState(true);
+  const files = useMemo(() => {
+    const trimmed = patch.trim();
+    if (trimmed.length === 0) return null;
+    try {
+      const parsed = parsePatchFiles(trimmed, `transcript:${fileName}:${trimmed.length}`).flatMap(
+        (entry) => entry.files,
+      );
+      return parsed.length > 0 ? parsed : null;
+    } catch {
+      return null;
+    }
+  }, [patch, fileName]);
+
+  if (!files) {
+    return <RawDiffView patch={patch} fileName={fileName} diffStat={diffStat} cwd={cwd} />;
+  }
+
+  return (
+    <div className="flex flex-col gap-2">
+      {files.map((fileDiff, index) => (
+        <FileDiff
+          key={`${fileName}-${index}`}
+          fileDiff={fileDiff}
+          renderHeaderPrefix={() => (
+            <button
+              type="button"
+              aria-label={collapsed ? "Развернуть diff" : "Свернуть diff"}
+              className="inline-flex size-5 shrink-0 items-center justify-center rounded-sm hover:bg-foreground/10"
+              onClick={(event) => {
+                event.stopPropagation();
+                setCollapsed((value) => !value);
+              }}
+            >
+              {collapsed ? (
+                <ChevronRightIcon className="size-4" />
+              ) : (
+                <ChevronDownIcon className="size-4" />
+              )}
+            </button>
+          )}
+          options={{
+            collapsed,
+            diffStyle: "unified",
+            lineDiffType: "none",
+            overflow: "wrap",
+            theme: resolveDiffThemeName(resolvedTheme),
+            themeType: resolvedTheme,
+          }}
+        />
+      ))}
+    </div>
+  );
+}
+
+/** Render a unified patch with the rich renderer or the raw fallback per flag. */
+function DiffBody(props: {
+  patch: string;
+  fileName: string;
+  diffStat: unknown;
+  cwd: string | undefined;
+}) {
+  return ADVANCED_CHAT_RICH_DIFF ? <FileDiffView {...props} /> : <RawDiffView {...props} />;
+}
+
+const TODO_ICON: Record<string, ReactNode> = {
+  completed: <CheckCircle2Icon className="size-3.5 text-success" />,
+  in_progress: <CircleDashedIcon className="size-3.5 text-info" />,
+  pending: <CircleIcon className="size-3.5 text-muted-foreground" />,
+};
+
+function DisplayView({
+  display,
+  cwd,
+}: {
+  display: TranscriptToolDisplay;
+  cwd: string | undefined;
+}) {
+  switch (display.kind) {
+    case "text":
+      return display.text.trim().length === 0 ? null : (
+        <pre className="overflow-x-auto whitespace-pre-wrap break-words rounded-md bg-muted/60 p-2 font-mono text-xs leading-relaxed text-foreground">
+          {display.text}
+        </pre>
+      );
+    case "file_diff":
+      return (
+        <DiffBody
+          patch={display.fileDiff}
+          fileName={display.fileName}
+          diffStat={display.diffStat}
+          cwd={cwd}
+        />
+      );
+    case "todo_list":
+      return (
+        <ul className="flex flex-col gap-1">
+          {display.todos.map((todo) => (
+            <li key={todo.id || todo.content} className="flex items-start gap-2 text-sm">
+              <span className="mt-0.5 shrink-0">
+                {TODO_ICON[todo.status] ?? TODO_ICON["pending"]}
+              </span>
+              <span
+                className={cn(
+                  "min-w-0 break-words",
+                  todo.status === "completed"
+                    ? "text-muted-foreground line-through"
+                    : "text-foreground",
+                )}
+              >
+                {todo.content}
+              </span>
+            </li>
+          ))}
+        </ul>
+      );
+    case "plan_summary":
+      return (
+        <div className="flex flex-col gap-2">
+          {display.rejected ? (
+            <Badge variant="error" size="sm">
+              план отклонён
+            </Badge>
+          ) : null}
+          {display.message.trim().length > 0 ? (
+            <ChatMarkdown text={display.message} cwd={cwd} />
+          ) : null}
+          {display.plan.trim().length > 0 ? (
+            <div className="rounded-md border border-border/60 bg-muted/30 p-2">
+              <ChatMarkdown text={display.plan} cwd={cwd} />
+            </div>
+          ) : null}
+        </div>
+      );
+    case "task_execution":
+      return (
+        <div className="flex flex-col gap-2 rounded-md border border-border/60 p-2">
+          <div className="flex flex-wrap items-center gap-2">
+            <Badge variant="secondary" size="sm">
+              {display.subagentName || "подагент"}
+            </Badge>
+            <Badge variant="outline" size="sm">
+              {display.status}
+            </Badge>
+          </div>
+          {display.taskDescription.trim().length > 0 ? (
+            <p className="break-words text-sm text-foreground">{display.taskDescription}</p>
+          ) : null}
+          {display.result && display.result.trim().length > 0 ? (
+            <ChatMarkdown text={display.result} cwd={cwd} />
+          ) : null}
+          {display.toolCalls && display.toolCalls.length > 0 ? (
+            <Disclosure
+              label="Вызовы инструментов подагента"
+              meta={
+                <Badge variant="outline" size="sm">
+                  {display.toolCalls.length}
+                </Badge>
+              }
+            >
+              <JsonBlock value={display.toolCalls} />
+            </Disclosure>
+          ) : null}
+        </div>
+      );
+    case "mcp_progress": {
+      const ratio =
+        display.total && display.total > 0
+          ? Math.min(1, Math.max(0, display.progress / display.total))
+          : null;
+      return (
+        <div className="flex flex-col gap-1.5">
+          <div className="flex items-center justify-between text-xs text-muted-foreground">
+            <span>{display.message ?? "выполнение"}</span>
+            <span className="font-mono">
+              {display.progress}
+              {display.total !== undefined ? ` / ${display.total}` : ""}
+            </span>
+          </div>
+          {ratio !== null ? (
+            <div className="h-1.5 w-full overflow-hidden rounded-full bg-muted">
+              <div
+                className="h-full rounded-full bg-primary"
+                style={{ width: `${ratio * 100}%` }}
+              />
+            </div>
+          ) : null}
+        </div>
+      );
+    }
+    case "ansi":
+      return (
+        <Disclosure label="Вывод терминала">
+          <JsonBlock value={display.raw} />
+        </Disclosure>
+      );
+    case "unknown":
+      return (
+        <Disclosure
+          label="Результат"
+          meta={
+            <Badge variant="outline" size="sm">
+              raw
+            </Badge>
+          }
+        >
+          <JsonBlock value={display.raw} />
+        </Disclosure>
+      );
+  }
+}
+
+function responsePreview(
+  parts: ReadonlyArray<TranscriptPart>,
+): { preview: string; value: unknown } | null {
+  for (const part of parts) {
+    if (part.kind !== "function_response") continue;
+    const response = part.response;
+    const output =
+      typeof response === "string"
+        ? response
+        : typeof response === "object" &&
+            response !== null &&
+            typeof (response as Record<string, unknown>)["output"] === "string"
+          ? ((response as Record<string, unknown>)["output"] as string)
+          : undefined;
+    const preview = (output ?? JSON.stringify(response) ?? "").replace(/\s+/g, " ").trim();
+    return {
+      preview: preview.length > 80 ? `${preview.slice(0, 80)}…` : preview,
+      value: output ?? response,
+    };
+  }
+  return null;
+}
+
+type FilePreview =
+  | {
+      readonly kind: "diff";
+      readonly fileName: string;
+      readonly patch: string;
+      readonly replaceAll: boolean;
+    }
+  | {
+      readonly kind: "content";
+      readonly fileName: string;
+      readonly content: string;
+      readonly language: string;
+    };
+
+const asText = (value: unknown): string | undefined =>
+  typeof value === "string" ? value : undefined;
+
+function baseName(filePath: string): string {
+  const segments = filePath.split(/[\\/]/);
+  return segments[segments.length - 1] || filePath;
+}
+
+/** Wrap `content` in a fence longer than any backtick run inside it, so a file
+ *  that itself contains ``` blocks (e.g. a Markdown doc) can't close it early. */
+function codeFence(content: string, language: string): string {
+  let longest = 0;
+  for (const run of content.matchAll(/`+/g)) {
+    longest = Math.max(longest, run[0].length);
+  }
+  const ticks = "`".repeat(Math.max(3, longest + 1));
+  return `${ticks}${language}\n${content}\n${ticks}`;
+}
+
+/** A pending edit/write_file — recorded function_call with no result yet — gets
+ *  a preview of what WILL be applied. `edit`/`replace` (qwen ToolNames: `edit`,
+ *  legacy alias `replace`) → an old→new diff synthesized from the call args;
+ *  `write_file` → the proposed content as a code block. null for everything else
+ *  and for already-completed steps (DisplayView owns those). */
+function buildFilePreview(step: ToolStep): FilePreview | null {
+  if (step.display !== undefined) return null;
+  if (typeof step.args !== "object" || step.args === null) return null;
+  const args = step.args as Record<string, unknown>;
+  const filePath = asText(args["file_path"]) ?? "";
+  const fileName = filePath ? baseName(filePath) : "файл";
+
+  if (step.name === "edit" || step.name === "replace") {
+    const before = asText(args["old_string"]) ?? "";
+    const after = asText(args["new_string"]) ?? "";
+    const patch = createTwoFilesPatch(fileName, fileName, before, after);
+    return { kind: "diff", fileName, patch, replaceAll: args["replace_all"] === true };
+  }
+  if (step.name === "write_file") {
+    const content = asText(args["content"]);
+    if (content === undefined) return null;
+    return { kind: "content", fileName, content, language: getFiletypeFromFileName(fileName) };
+  }
+  return null;
+}
+
+const HEAVY_ARG_KEYS: ReadonlySet<string> = new Set(["content", "old_string", "new_string"]);
+
+/** Drop the large text fields from edit/write_file args so the JSON disclosure
+ *  shows only the small ones (file_path, replace_all); the body/diff is rendered
+ *  on its own, never as escaped JSON. Other tools keep their full args. */
+function compactArgs(name: string, args: unknown): unknown {
+  if (typeof args !== "object" || args === null) return args;
+  if (name !== "edit" && name !== "replace" && name !== "write_file") return args;
+  const compact: Record<string, unknown> = {};
+  for (const [key, value] of Object.entries(args as Record<string, unknown>)) {
+    if (!HEAVY_ARG_KEYS.has(key)) compact[key] = value;
+  }
+  return compact;
+}
+
+function isRenderableArgs(args: unknown): boolean {
+  if (args === undefined) return false;
+  if (typeof args === "object" && args !== null) return Object.keys(args).length > 0;
+  return true;
+}
+
+function FilePreviewView({ preview, cwd }: { preview: FilePreview; cwd: string | undefined }) {
+  return (
+    <div className="flex flex-col gap-1.5">
+      <div className="flex flex-wrap items-center gap-2">
+        <Badge variant="info" size="sm">
+          предпросмотр
+        </Badge>
+        <code className="min-w-0 break-all font-mono text-xs text-muted-foreground">
+          {preview.fileName}
+        </code>
+        {preview.kind === "diff" && preview.replaceAll ? (
+          <Badge variant="secondary" size="sm">
+            ко всем совпадениям
+          </Badge>
+        ) : null}
+      </div>
+      {preview.kind === "diff" ? (
+        <DiffBody
+          patch={preview.patch}
+          fileName={preview.fileName}
+          diffStat={undefined}
+          cwd={cwd}
+        />
+      ) : (
+        <Disclosure
+          label="Содержимое файла"
+          meta={
+            <Badge variant="outline" size="sm">
+              {`${preview.content.split("\n").length} стр.`}
+            </Badge>
+          }
+        >
+          <ChatMarkdown text={codeFence(preview.content, preview.language)} cwd={cwd} />
+        </Disclosure>
+      )}
+    </div>
+  );
+}
+
+export function ToolStepCard({ step, cwd }: { step: ToolStep; cwd: string | undefined }) {
+  const status = STATUS_META[step.status];
+  const duration = formatDuration(step.durationMs);
+  const response = responsePreview(step.response);
+  const filePreview = useMemo(
+    () => (ADVANCED_CHAT_PENDING_PREVIEW ? buildFilePreview(step) : null),
+    [step],
+  );
+  const argsForDisplay = useMemo(() => compactArgs(step.name, step.args), [step.name, step.args]);
+
+  return (
+    <div className="rounded-lg border border-border bg-card/50">
+      <div className="flex flex-wrap items-center gap-2 border-b border-border/60 px-2.5 py-1.5">
+        {step.command !== undefined ? (
+          <TerminalIcon className="size-3.5 shrink-0 text-muted-foreground" />
+        ) : (
+          <WrenchIcon className="size-3.5 shrink-0 text-muted-foreground" />
+        )}
+        <code className="min-w-0 break-all font-mono text-xs font-medium text-foreground">
+          {step.name || "инструмент"}
+        </code>
+        <Badge variant={status.variant} size="sm">
+          {status.label}
+        </Badge>
+        {duration ? (
+          <span className="ml-auto font-mono text-[0.7rem] text-muted-foreground">{duration}</span>
+        ) : null}
+      </div>
+
+      <div className="flex flex-col gap-2 p-2.5">
+        {step.command !== undefined ? (
+          <pre className="overflow-x-auto rounded-md bg-muted/60 px-2 py-1.5 font-mono text-xs text-foreground">
+            <span className="text-muted-foreground">$ </span>
+            {step.command}
+          </pre>
+        ) : isRenderableArgs(argsForDisplay) ? (
+          <Disclosure label="Аргументы">
+            <JsonBlock value={argsForDisplay} />
+          </Disclosure>
+        ) : null}
+
+        {filePreview ? <FilePreviewView preview={filePreview} cwd={cwd} /> : null}
+
+        {step.error ? (
+          <div className="flex items-start gap-1.5 rounded-md bg-destructive/8 px-2 py-1.5 text-xs text-destructive-foreground dark:bg-destructive/16">
+            <AlertTriangleIcon className="mt-0.5 size-3.5 shrink-0" />
+            <span className="min-w-0 break-words">{step.error}</span>
+          </div>
+        ) : null}
+
+        {step.display ? <DisplayView display={step.display} cwd={cwd} /> : null}
+
+        {response && response.preview.length > 0 ? (
+          <Disclosure
+            label="Ответ"
+            meta={
+              <span className="max-w-[16rem] truncate font-mono text-[0.7rem] text-muted-foreground">
+                {response.preview}
+              </span>
+            }
+          >
+            <JsonBlock value={response.value} />
+          </Disclosure>
+        ) : null}
+      </div>
+    </div>
+  );
+}
diff --git a/apps/web/src/ru-fork/advanced-chat/TranscriptParts.tsx b/apps/web/src/ru-fork/advanced-chat/TranscriptParts.tsx
new file mode 100644
index 00000000000..642d6baea58
--- /dev/null
+++ b/apps/web/src/ru-fork/advanced-chat/TranscriptParts.tsx
@@ -0,0 +1,116 @@
+// ru-fork: advanced chat mode — renders message `parts` (the @google/genai parts,
+// normalized). Every kind is presented: text/thought as prose, calls/responses and
+// unknown blobs in collapsibles, inline data as a labelled chip.
+import type { TranscriptPart } from "@t3tools/contracts";
+import { BrainIcon, PaperclipIcon } from "lucide-react";
+
+import ChatMarkdown from "~/components/ChatMarkdown";
+import { Badge } from "~/components/ui/badge";
+
+import { Disclosure, JsonBlock } from "./transcriptVisuals";
+
+function PartView({ part, cwd }: { part: TranscriptPart; cwd: string | undefined }) {
+  switch (part.kind) {
+    case "text":
+      return part.text.trim().length === 0 ? null : <ChatMarkdown text={part.text} cwd={cwd} />;
+    case "thought":
+      return (
+        <Disclosure
+          label={
+            <span className="flex items-center gap-1.5">
+              <BrainIcon className="size-3.5" />
+              Размышления
+            </span>
+          }
+        >
+          <ChatMarkdown text={part.text} cwd={cwd} />
+        </Disclosure>
+      );
+    case "function_call":
+      return (
+        <Disclosure
+          label={
+            <span className="flex items-center gap-1.5">
+              Вызов инструмента
+              <code className="rounded bg-muted px-1 py-0.5 font-mono text-[0.7rem] text-foreground">
+                {part.name || "—"}
+              </code>
+            </span>
+          }
+          meta={
+            <Badge variant="outline" size="sm">
+              аргументы
+            </Badge>
+          }
+        >
+          <JsonBlock value={part.args} />
+        </Disclosure>
+      );
+    case "function_response":
+      return (
+        <Disclosure
+          label={
+            <span className="flex items-center gap-1.5">
+              Ответ инструмента
+              <code className="rounded bg-muted px-1 py-0.5 font-mono text-[0.7rem] text-foreground">
+                {part.name || "—"}
+              </code>
+            </span>
+          }
+        >
+          <JsonBlock value={part.response} />
+        </Disclosure>
+      );
+    case "inline_data":
+      return (
+        <Badge variant="outline" size="sm" className="font-mono">
+          <PaperclipIcon className="size-3" />
+          {part.mimeType || "вложение"}
+        </Badge>
+      );
+    case "unknown":
+      return (
+        <Disclosure
+          label="Неизвестный блок"
+          meta={
+            <Badge variant="outline" size="sm">
+              raw
+            </Badge>
+          }
+        >
+          <JsonBlock value={part.raw} />
+        </Disclosure>
+      );
+  }
+}
+
+// Parts are immutable for a given record, but build a content-derived key so we
+// never rely on the bare array index.
+function partKey(part: TranscriptPart, index: number): string {
+  switch (part.kind) {
+    case "text":
+    case "thought":
+      return `${part.kind}-${index}-${part.text.length}`;
+    case "function_call":
+    case "function_response":
+      return `${part.kind}-${index}-${part.name}`;
+    case "inline_data":
+      return `inline-${index}-${part.mimeType}`;
+    case "unknown":
+      return `unknown-${index}`;
+  }
+}
+
+export function TranscriptParts({
+  parts,
+  cwd,
+}: {
+  parts: ReadonlyArray<TranscriptPart>;
+  cwd: string | undefined;
+}) {
+  const rendered = parts.map((part, index) => {
+    const node = <PartView part={part} cwd={cwd} />;
+    return node ? <div key={partKey(part, index)}>{node}</div> : null;
+  });
+  return <div className="flex min-w-0 flex-col gap-2">{rendered}</div>;
+}
diff --git a/apps/web/src/ru-fork/advanced-chat/UserBubble.tsx b/apps/web/src/ru-fork/advanced-chat/UserBubble.tsx
new file mode 100644
index 00000000000..b5f39d650d6
--- /dev/null
+++ b/apps/web/src/ru-fork/advanced-chat/UserBubble.tsx
@@ -0,0 +1,43 @@
+// ru-fork: advanced chat mode — user message bubble. Matches the existing chat
+// bubble look (right-aligned secondary bubble + timestamp + copy); an image part
+// shows as a 📎 chip (the transcript carries only the mime type, not the bytes).
+import { PaperclipIcon } from "lucide-react";
+
+import ChatMarkdown from "~/components/ChatMarkdown";
+import { Badge } from "~/components/ui/badge";
+
+import type { UserRecord } from "./transcriptTypes";
+import { CopyButton } from "./transcriptVisuals";
+
+export function UserBubble({ record, cwd }: { record: UserRecord; cwd: string | undefined }) {
+  const text = record.parts
+    .flatMap((part) => (part.kind === "text" ? [part.text] : []))
+    .join("\n\n");
+  const images = record.parts.flatMap((part) =>
+    part.kind === "inline_data" ? [part.mimeType] : [],
+  );
+  const date = new Date(record.timestamp);
+  const time = Number.isNaN(date.getTime()) ? record.timestamp : date.toLocaleTimeString();
+
+  return (
+    <div className="flex justify-end">
+      <div className="min-w-0 max-w-[85%] rounded-2xl rounded-br-sm border border-border bg-secondary px-4 py-3">
+        {text.length > 0 ? <ChatMarkdown text={text} cwd={cwd} /> : null}
+        {images.length > 0 ? (
+          <div className="mt-2 flex flex-wrap gap-1.5">
+            {images.map((mimeType, index) => (
+              <Badge key={`img-${index}-${mimeType}`} variant="outline" size="sm" className="font-mono">
+                <PaperclipIcon className="size-3" />
+                {mimeType || "вложение"}
+              </Badge>
+            ))}
+          </div>
+        ) : null}
+        <div className="mt-1 flex items-center justify-end gap-1 text-[0.7rem] text-muted-foreground">
+          {text.length > 0 ? <CopyButton text={text} /> : null}
+          <span title={record.timestamp}>{time}</span>
+        </div>
+      </div>
+    </div>
+  );
+}
diff --git a/apps/web/src/ru-fork/advanced-chat/advancedChatMode.ts b/apps/web/src/ru-fork/advanced-chat/advancedChatMode.ts
new file mode 100644
index 00000000000..e34c3d8e5c2
--- /dev/null
+++ b/apps/web/src/ru-fork/advanced-chat/advancedChatMode.ts
@@ -0,0 +1,40 @@
+// ru-fork: advanced chat mode toggle — per-thread, persisted to localStorage so the
+// view choice survives reloads. Isolated store; does not touch uiStateStore.
+import { create } from "zustand";
+
+const STORAGE_KEY = "ru-fork:advanced-chat-mode:v1";
+
+function loadInitial(): Record<string, boolean> {
+  if (typeof window === "undefined") return {};
+  try {
+    const raw = window.localStorage.getItem(STORAGE_KEY);
+    const parsed = raw ? (JSON.parse(raw) as unknown) : {};
+    return typeof parsed === "object" && parsed !== null ? (parsed as Record<string, boolean>) : {};
+  } catch {
+    return {};
+  }
+}
+
+function persist(byThread: Record<string, boolean>): void {
+  if (typeof window === "undefined") return;
+  try {
+    window.localStorage.setItem(STORAGE_KEY, JSON.stringify(byThread));
+  } catch {
+    // ignore quota / serialization errors
+  }
+}
+
+interface AdvancedChatModeStore {
+  readonly byThread: Record<string, boolean>;
+  readonly toggle: (threadId: string) => void;
+}
+
+export const useAdvancedChatMode = create<AdvancedChatModeStore>((set) => ({
+  byThread: loadInitial(),
+  toggle: (threadId) =>
+    set((state) => {
+      const next = { ...state.byThread, [threadId]: !state.byThread[threadId] };
+      persist(next);
+      return { byThread: next };
+    }),
+}));
diff --git a/apps/web/src/ru-fork/advanced-chat/transcriptFlow.ts b/apps/web/src/ru-fork/advanced-chat/transcriptFlow.ts
new file mode 100644
index 00000000000..a9b39a6fb15
--- /dev/null
+++ b/apps/web/src/ru-fork/advanced-chat/transcriptFlow.ts
@@ -0,0 +1,205 @@
+// ru-fork: advanced chat mode — flatten qwen's record stream into a render-ready
+// flow. One logical tool use is spread across THREE records (assistant
+// functionCall + tool_result + ui_telemetry/tool_call); we merge them into a
+// single ToolStep so the UI shows one card with args/diff/status/duration —
+// including cancelled tools, which have NO tool_result (only a tool_call event).
+// `api_response` telemetry is folded into the assistant line's latency.
+import type { TranscriptPart, TranscriptToolDisplay } from "@t3tools/contracts";
+
+import type {
+  AssistantRecord,
+  SystemRecord,
+  ToolResultRecord,
+  UserRecord,
+} from "./transcriptTypes";
+
+export type ToolStepStatus = "success" | "error" | "cancelled" | "running";
+
+export interface ToolStep {
+  readonly key: string;
+  name: string;
+  args: unknown;
+  command: string | undefined;
+  status: ToolStepStatus;
+  durationMs: number | undefined;
+  error: string | undefined;
+  display: TranscriptToolDisplay | undefined;
+  response: ReadonlyArray<TranscriptPart>;
+}
+
+export interface AssistantFlowItem {
+  readonly kind: "assistant";
+  readonly record: AssistantRecord;
+  latencyMs: number | undefined;
+  readonly tools: ToolStep[];
+}
+
+export type FlowItem =
+  | { readonly kind: "user"; readonly record: UserRecord }
+  | AssistantFlowItem
+  | { readonly kind: "system"; readonly record: SystemRecord };
+
+interface TelemetryEvent {
+  readonly name: string;
+  readonly durationMs: number | undefined;
+  readonly status: string | undefined;
+  readonly error: string | undefined;
+  readonly functionName: string | undefined;
+  readonly functionArgs: unknown;
+}
+
+const asString = (value: unknown): string | undefined =>
+  typeof value === "string" ? value : undefined;
+const asNumber = (value: unknown): number | undefined =>
+  typeof value === "number" && Number.isFinite(value) ? value : undefined;
+
+function readTelemetry(record: SystemRecord): TelemetryEvent | null {
+  if (record.subtype !== "ui_telemetry") return null;
+  const payload = record.payload;
+  if (typeof payload !== "object" || payload === null) return null;
+  const event = (payload as Record<string, unknown>)["uiEvent"];
+  if (typeof event !== "object" || event === null) return null;
+  const ev = event as Record<string, unknown>;
+  return {
+    name: asString(ev["event.name"]) ?? "",
+    durationMs: asNumber(ev["duration_ms"]),
+    status: asString(ev["status"]),
+    error: asString(ev["error"]),
+    functionName: asString(ev["function_name"]),
+    functionArgs: ev["function_args"],
+  };
+}
+
+function shellCommand(name: string, args: unknown): string | undefined {
+  if (name !== "run_shell_command" || typeof args !== "object" || args === null) return undefined;
+  return asString((args as Record<string, unknown>)["command"]);
+}
+
+function functionResponseName(record: ToolResultRecord): string | undefined {
+  for (const part of record.parts) {
+    if (part.kind === "function_response" && part.name.length > 0) return part.name;
+  }
+  return undefined;
+}
+
+export function buildTranscriptFlow(records: ReadonlyArray<unknown>): FlowItem[] {
+  // records are TranscriptRecord; typed loosely to avoid a wide import union here.
+  const items: FlowItem[] = [];
+  let currentAssistant: AssistantFlowItem | null = null;
+  let pendingLatencyMs: number | undefined;
+
+  for (const raw of records) {
+    const record = raw as { type: string } & Record<string, unknown>;
+
+    if (record.type === "user") {
+      currentAssistant = null;
+      items.push({ kind: "user", record: raw as UserRecord });
+      continue;
+    }
+
+    if (record.type === "assistant") {
+      const assistant = raw as AssistantRecord;
+      const tools: ToolStep[] = [];
+      assistant.parts.forEach((part, index) => {
+        if (part.kind === "function_call") {
+          tools.push({
+            key: `${assistant.uuid}-${index}`,
+            name: part.name,
+            args: part.args,
+            command: shellCommand(part.name, part.args),
+            status: "running",
+            durationMs: undefined,
+            error: undefined,
+            display: undefined,
+            response: [],
+          });
+        }
+      });
+      const item: AssistantFlowItem = {
+        kind: "assistant",
+        record: assistant,
+        latencyMs: pendingLatencyMs,
+        tools,
+      };
+      pendingLatencyMs = undefined;
+      currentAssistant = item;
+      items.push(item);
+      continue;
+    }
+
+    if (record.type === "tool_result") {
+      const result = raw as ToolResultRecord;
+      const name = functionResponseName(result);
+      const step = pickStep(currentAssistant, name, (candidate) => candidate.display === undefined);
+      if (step) {
+        step.display = result.toolCall?.display;
+        step.response = result.parts.filter((part) => part.kind === "function_response");
+        // A `tool_result` is written ONLY for a CompletedToolCall, whose status is
+        // always success | error | cancelled (qwen coreToolScheduler.ts:165 +
+        // checkAndNotifyCompletion gate :1583). Its presence is therefore terminal,
+        // so anything that is not cancel/error resolves to success — a step that has
+        // a result must never stay "running".
+        const status = result.toolCall?.status;
+        step.status =
+          status === "cancelled" ? "cancelled" : status === "error" ? "error" : "success";
+      }
+      continue;
+    }
+
+    if (record.type === "system") {
+      const telemetry = readTelemetry(raw as SystemRecord);
+      if (!telemetry) {
+        // compaction / slash_command / at_command — a real timeline divider.
+        currentAssistant = null;
+        items.push({ kind: "system", record: raw as SystemRecord });
+        continue;
+      }
+      // Match by suffix, not the full `<cli>.` brand prefix, so a CLI rebrand
+      // (e.g. "qwen-code." → "ru-code.") keeps working without a code change.
+      if (telemetry.name.endsWith(".api_response")) {
+        // Latency of the response that is about to be (or was just) emitted.
+        pendingLatencyMs = telemetry.durationMs;
+        if (currentAssistant && currentAssistant.latencyMs === undefined) {
+          currentAssistant.latencyMs = telemetry.durationMs;
+        }
+      } else if (telemetry.name.endsWith(".tool_call")) {
+        const step = pickStep(
+          currentAssistant,
+          telemetry.functionName,
+          (candidate) => candidate.durationMs === undefined,
+        );
+        if (step) {
+          step.durationMs = telemetry.durationMs;
+          if (step.command === undefined) {
+            step.command = shellCommand(step.name, telemetry.functionArgs);
+          }
+          if (telemetry.status === "error") {
+            const cancelled = (telemetry.error ?? "").toLowerCase().includes("cancel");
+            step.status = cancelled ? "cancelled" : "error";
+            step.error = telemetry.error;
+          } else if (telemetry.status === "success" && step.status === "running") {
+            step.status = "success";
+          }
+        }
+      }
+      // any other telemetry event is intentionally ignored
+      continue;
+    }
+  }
+
+  return items;
+}
+
+/** First tool in the current assistant turn matching `name` (if given) for which
+ *  `open` still holds — so call/result/telemetry land on the same step. */
+function pickStep(
+  assistant: AssistantFlowItem | null,
+  name: string | undefined,
+  open: (step: ToolStep) => boolean,
+): ToolStep | undefined {
+  if (!assistant) return undefined;
+  const byName = name
+    ? assistant.tools.find((step) => step.name === name && open(step))
+    : undefined;
+  return byName ?? assistant.tools.find(open);
+}
diff --git a/apps/web/src/ru-fork/advanced-chat/transcriptTypes.ts b/apps/web/src/ru-fork/advanced-chat/transcriptTypes.ts
new file mode 100644
index 00000000000..233688bdf58
--- /dev/null
+++ b/apps/web/src/ru-fork/advanced-chat/transcriptTypes.ts
@@ -0,0 +1,7 @@
+// ru-fork: advanced chat mode — per-type narrowings of the TranscriptRecord union.
+import type { TranscriptRecord } from "@t3tools/contracts";
+
+export type UserRecord = Extract<TranscriptRecord, { type: "user" }>;
+export type AssistantRecord = Extract<TranscriptRecord, { type: "assistant" }>;
+export type ToolResultRecord = Extract<TranscriptRecord, { type: "tool_result" }>;
+export type SystemRecord = Extract<TranscriptRecord, { type: "system" }>;
diff --git a/apps/web/src/ru-fork/advanced-chat/transcriptVisuals.tsx b/apps/web/src/ru-fork/advanced-chat/transcriptVisuals.tsx
new file mode 100644
index 00000000000..b272a4ff79f
--- /dev/null
+++ b/apps/web/src/ru-fork/advanced-chat/transcriptVisuals.tsx
@@ -0,0 +1,82 @@
+// ru-fork: advanced chat mode — shared visual primitives for the transcript view.
+// Theme-safe (semantic tokens only), nothing truncated: heavy content goes into
+// a <Disclosure> (collapsed) so everything is reachable without clamping.
+import { CheckIcon, ChevronRightIcon, CopyIcon } from "lucide-react";
+import { type ReactNode, useState } from "react";
+
+import { Collapsible, CollapsibleContent, CollapsibleTrigger } from "~/components/ui/collapsible";
+import { cn } from "~/lib/utils";
+
+/** Collapsible section with a chevron + label and an optional right-aligned meta slot. */
+export function Disclosure({
+  label,
+  meta,
+  defaultOpen = false,
+  tone = "muted",
+  children,
+}: {
+  label: ReactNode;
+  meta?: ReactNode;
+  defaultOpen?: boolean;
+  tone?: "muted" | "default";
+  children: ReactNode;
+}) {
+  const [open, setOpen] = useState(defaultOpen);
+  return (
+    <Collapsible open={open} onOpenChange={setOpen} className="rounded-md border border-border/60">
+      <CollapsibleTrigger
+        className={cn(
+          "flex w-full items-center gap-1.5 rounded-md px-2 py-1.5 text-left text-xs font-medium transition-colors hover:bg-accent/50",
+          tone === "muted" ? "text-muted-foreground" : "text-foreground",
+        )}
+      >
+        <ChevronRightIcon
+          className={cn("size-3.5 shrink-0 transition-transform", open && "rotate-90")}
+        />
+        <span className="min-w-0 break-words">{label}</span>
+        {meta ? (
+          <span className="ml-auto flex shrink-0 items-center gap-1.5 pl-2">{meta}</span>
+        ) : null}
+      </CollapsibleTrigger>
+      <CollapsibleContent>
+        <div className="border-t border-border/60 px-2 py-2">{children}</div>
+      </CollapsibleContent>
+    </Collapsible>
+  );
+}
+
+/** Monospace JSON / text block. Horizontal scroll only (never clips vertically). */
+export function JsonBlock({ value }: { value: unknown }) {
+  const text = (() => {
+    try {
+      return typeof value === "string" ? value : JSON.stringify(value, null, 2);
+    } catch {
+      return String(value);
+    }
+  })();
+  return (
+    <pre className="overflow-x-auto rounded-md bg-muted/60 p-2 font-mono text-xs leading-relaxed text-foreground">
+      {text}
+    </pre>
+  );
+}
+
+/** Copy-to-clipboard icon button, matching the chat bubble affordance. */
+export function CopyButton({ text }: { text: string }) {
+  const [copied, setCopied] = useState(false);
+  return (
+    <button
+      type="button"
+      aria-label="Скопировать"
+      className="rounded p-1 text-muted-foreground transition-colors hover:bg-accent/50 hover:text-foreground"
+      onClick={() => {
+        void navigator.clipboard?.writeText(text).then(() => {
+          setCopied(true);
+          setTimeout(() => setCopied(false), 1200);
+        });
+      }}
+    >
+      {copied ? <CheckIcon className="size-3.5" /> : <CopyIcon className="size-3.5" />}
+    </button>
+  );
+}
diff --git a/apps/web/src/ru-fork/advanced-chat/useTranscriptSubscription.ts b/apps/web/src/ru-fork/advanced-chat/useTranscriptSubscription.ts
new file mode 100644
index 00000000000..a4fcfbfaad3
--- /dev/null
+++ b/apps/web/src/ru-fork/advanced-chat/useTranscriptSubscription.ts
@@ -0,0 +1,53 @@
+// ru-fork: advanced chat mode — subscribe to the server's qwen-transcript stream for
+// a thread and keep the records in local state. Self-contained: reuses the exported
+// environment-connection registry (no store.ts / service.ts changes). Re-attaches if
+// the environment connection object is replaced (full reconnect).
+import type { EnvironmentId, ThreadId, TranscriptRecord } from "@t3tools/contracts";
+import { useEffect, useState } from "react";
+
+import {
+  readEnvironmentConnection,
+  subscribeEnvironmentConnections,
+} from "~/environments/runtime/service";
+
+export function useTranscriptSubscription(
+  environmentId: EnvironmentId | undefined,
+  threadId: ThreadId | undefined,
+  enabled: boolean,
+): ReadonlyArray<TranscriptRecord> {
+  const [records, setRecords] = useState<ReadonlyArray<TranscriptRecord>>([]);
+
+  useEffect(() => {
+    if (!enabled || !environmentId || !threadId) {
+      setRecords([]);
+      return;
+    }
+    setRecords([]);
+
+    let unsubscribe = () => {};
+    let attachedTo: unknown = null;
+
+    const attach = () => {
+      const connection = readEnvironmentConnection(environmentId);
+      if (!connection || connection === attachedTo) return;
+      unsubscribe();
+      attachedTo = connection;
+      unsubscribe = connection.client.orchestration.subscribeTranscript({ threadId }, (item) => {
+        if (item.kind === "snapshot") {
+          setRecords(item.records);
+        } else {
+          setRecords((previous) => [...previous, ...item.records]);
+        }
+      });
+    };
+
+    attach();
+    const unsubscribeConnections = subscribeEnvironmentConnections(attach);
+    return () => {
+      unsubscribe();
+      unsubscribeConnections();
+    };
+  }, [environmentId, threadId, enabled]);
+
+  return records;
+}
diff --git a/apps/web/src/ru-fork/config.ts b/apps/web/src/ru-fork/config.ts
index 61b18ac8b27..620ac1628d9 100644
--- a/apps/web/src/ru-fork/config.ts
+++ b/apps/web/src/ru-fork/config.ts
@@ -12,3 +12,15 @@ export const DISABLE_AUTO_APPROVE = true;
 // HIDE_EXTRA_FEATURES so we can re-enable model selection while keeping
 // other multi-provider surfaces hidden in the single-provider build.
 export const SHOW_MODEL_SELECTOR = true;
+
+// ru-fork: advanced chat mode diff renderer. true = rich @pierre/diffs FileDiff
+// (clean gutter, no patch headers); false = raw Shiki unified-patch fallback.
+// Flip to false to fall back instantly if the rich renderer misbehaves.
+export const ADVANCED_CHAT_RICH_DIFF = true;
+
+// ru-fork: advanced chat mode — preview a pending file operation before it is
+// approved/applied. true = render an un-applied `edit` as a synthesized
+// old→new diff (jsdiff createTwoFilesPatch) and a pending `write_file` as a
+// syntax-highlighted code block; false = just show the raw call arguments.
+// Orthogonal to ADVANCED_CHAT_RICH_DIFF, which only styles a diff once shown.
+export const ADVANCED_CHAT_PENDING_PREVIEW = true;
diff --git a/packages/contracts/src/index.ts b/packages/contracts/src/index.ts
index 289d9182395..91c260c6a89 100644
--- a/packages/contracts/src/index.ts
+++ b/packages/contracts/src/index.ts
@@ -16,6 +16,8 @@ export * from "./ru-fork/skills.ts";
 export * from "./ru-fork/subagents.ts";
 export * from "./ru-fork/terminalErrors.ts";
 export * from "./ru-fork/mcp.ts";
+// ru-fork: advanced chat mode — normalized qwen transcript contract.
+export * from "./ru-fork/transcript.ts";
 export * from "./settings.ts";
 export * from "./git.ts";
 export * from "./vcs.ts";
diff --git a/packages/contracts/src/rpc.ts b/packages/contracts/src/rpc.ts
index e5b8b192be4..7c93dbf19fc 100644
--- a/packages/contracts/src/rpc.ts
+++ b/packages/contracts/src/rpc.ts
@@ -93,6 +93,12 @@ import {
 } from "./ru-fork/mcp.ts";
 import { ProjectId } from "./baseSchemas.ts";
 import { ServerSettings, ServerSettingsError, ServerSettingsPatch } from "./settings.ts";
+// ru-fork: advanced chat mode — transcript subscription.
+import {
+  TRANSCRIPT_WS_METHOD,
+  TranscriptRpcSchemas,
+  TranscriptSubscribeError,
+} from "./ru-fork/transcript.ts";
 import {
   SourceControlCloneRepositoryInput,
   SourceControlCloneRepositoryResult,
@@ -474,6 +480,14 @@ export const WsOrchestrationSubscribeThreadRpc = Rpc.make(
   },
 );
 
+// ru-fork: advanced chat mode — stream normalized qwen transcript records.
+export const WsOrchestrationSubscribeTranscriptRpc = Rpc.make(TRANSCRIPT_WS_METHOD, {
+  payload: TranscriptRpcSchemas.subscribeTranscript.input,
+  success: TranscriptRpcSchemas.subscribeTranscript.output,
+  error: TranscriptSubscribeError,
+  stream: true,
+});
+
 export const WsSubscribeTerminalEventsRpc = Rpc.make(WS_METHODS.subscribeTerminalEvents, {
   payload: Schema.Struct({}),
   success: TerminalEvent,
@@ -594,4 +608,6 @@ export const WsRpcGroup = RpcGroup.make(
   WsMcpRecheckRpc,
   WsSubscribeMcpProjectionRpc,
   WsSubscribeMcpRuntimeRpc,
+  // ru-fork: advanced chat mode.
+  WsOrchestrationSubscribeTranscriptRpc,
 );
diff --git a/packages/contracts/src/ru-fork/transcript.ts b/packages/contracts/src/ru-fork/transcript.ts
new file mode 100644
index 00000000000..8eb3e92d5a0
--- /dev/null
+++ b/packages/contracts/src/ru-fork/transcript.ts
@@ -0,0 +1,179 @@
+// ru-fork: contract for "advanced chat mode" — a normalized view of qwen's
+// on-disk JSONL conversation transcript (read-only). The server's
+// QwenTranscriptService parses qwen `ChatRecord` lines into these shapes and
+// streams them; the web client renders them. Kept under ru-fork/ so upstream
+// re-syncs never collide. See ru-fork-instrumental/advanced-chat/PLAN.md.
+import * as Schema from "effect/Schema";
+
+import { ThreadId } from "../baseSchemas.ts";
+
+/** WS method name. Defined here (not in orchestration.ts) to avoid touching upstream. */
+export const TRANSCRIPT_WS_METHOD = "orchestration.subscribeTranscript" as const;
+
+/**
+ * One normalized part of a message. Maps from a @google/genai `Part` — we read
+ * the raw JSON structurally (qwen geminiChat.ts discriminates the same way).
+ */
+export const TranscriptPart = Schema.Union([
+  Schema.Struct({ kind: Schema.Literal("text"), text: Schema.String }),
+  Schema.Struct({ kind: Schema.Literal("thought"), text: Schema.String }),
+  Schema.Struct({
+    kind: Schema.Literal("function_call"),
+    name: Schema.String,
+    args: Schema.Unknown,
+  }),
+  Schema.Struct({
+    kind: Schema.Literal("function_response"),
+    name: Schema.String,
+    response: Schema.Unknown,
+  }),
+  Schema.Struct({ kind: Schema.Literal("inline_data"), mimeType: Schema.String }),
+  Schema.Struct({ kind: Schema.Literal("unknown"), raw: Schema.Unknown }),
+]);
+export type TranscriptPart = typeof TranscriptPart.Type;
+
+/** qwen CoreToolScheduler `Status`. */
+export const TranscriptToolStatus = Schema.Literals([
+  "validating",
+  "scheduled",
+  "error",
+  "success",
+  "executing",
+  "cancelled",
+  "awaiting_approval",
+]);
+export type TranscriptToolStatus = typeof TranscriptToolStatus.Type;
+
+/** Normalized `ToolResultDisplay` union (qwen tools.ts:532). */
+export const TranscriptToolDisplay = Schema.Union([
+  Schema.Struct({ kind: Schema.Literal("text"), text: Schema.String }),
+  Schema.Struct({
+    kind: Schema.Literal("file_diff"),
+    fileName: Schema.String,
+    fileDiff: Schema.String,
+    originalContent: Schema.NullOr(Schema.String),
+    newContent: Schema.String,
+    diffStat: Schema.optional(Schema.Unknown),
+  }),
+  Schema.Struct({
+    kind: Schema.Literal("todo_list"),
+    todos: Schema.Array(
+      Schema.Struct({
+        id: Schema.String,
+        content: Schema.String,
+        status: Schema.Literals(["pending", "in_progress", "completed"]),
+      }),
+    ),
+  }),
+  Schema.Struct({
+    kind: Schema.Literal("plan_summary"),
+    message: Schema.String,
+    plan: Schema.String,
+    rejected: Schema.optional(Schema.Boolean),
+  }),
+  Schema.Struct({
+    kind: Schema.Literal("task_execution"),
+    subagentName: Schema.String,
+    status: Schema.String,
+    taskDescription: Schema.String,
+    result: Schema.optional(Schema.String),
+    toolCalls: Schema.optional(Schema.Array(Schema.Unknown)),
+  }),
+  Schema.Struct({
+    kind: Schema.Literal("mcp_progress"),
+    progress: Schema.Number,
+    total: Schema.optional(Schema.Number),
+    message: Schema.optional(Schema.String),
+  }),
+  Schema.Struct({ kind: Schema.Literal("ansi"), raw: Schema.Unknown }),
+  Schema.Struct({ kind: Schema.Literal("unknown"), raw: Schema.Unknown }),
+]);
+export type TranscriptToolDisplay = typeof TranscriptToolDisplay.Type;
+
+export const TranscriptToolCall = Schema.Struct({
+  callId: Schema.optional(Schema.String),
+  status: Schema.optional(TranscriptToolStatus),
+  display: Schema.optional(TranscriptToolDisplay),
+});
+export type TranscriptToolCall = typeof TranscriptToolCall.Type;
+
+export const TranscriptUsage = Schema.Struct({
+  promptTokens: Schema.optional(Schema.Number),
+  cachedTokens: Schema.optional(Schema.Number),
+  outputTokens: Schema.optional(Schema.Number),
+  totalTokens: Schema.optional(Schema.Number),
+});
+export type TranscriptUsage = typeof TranscriptUsage.Type;
+
+const TranscriptBaseFields = {
+  uuid: Schema.String,
+  parentUuid: Schema.NullOr(Schema.String),
+  sessionId: Schema.String,
+  timestamp: Schema.String,
+  cwd: Schema.String,
+  gitBranch: Schema.optional(Schema.String),
+} as const;
+
+export const TranscriptSystemSubtype = Schema.Literals([
+  "chat_compression",
+  "slash_command",
+  "ui_telemetry",
+  "at_command",
+]);
+export type TranscriptSystemSubtype = typeof TranscriptSystemSubtype.Type;
+
+export const TranscriptRecord = Schema.Union([
+  Schema.Struct({
+    ...TranscriptBaseFields,
+    type: Schema.Literal("user"),
+    parts: Schema.Array(TranscriptPart),
+  }),
+  Schema.Struct({
+    ...TranscriptBaseFields,
+    type: Schema.Literal("assistant"),
+    parts: Schema.Array(TranscriptPart),
+    model: Schema.optional(Schema.String),
+    contextWindowSize: Schema.optional(Schema.Number),
+    usage: Schema.optional(TranscriptUsage),
+  }),
+  Schema.Struct({
+    ...TranscriptBaseFields,
+    type: Schema.Literal("tool_result"),
+    parts: Schema.Array(TranscriptPart),
+    toolCall: Schema.optional(TranscriptToolCall),
+  }),
+  Schema.Struct({
+    ...TranscriptBaseFields,
+    type: Schema.Literal("system"),
+    subtype: Schema.optional(TranscriptSystemSubtype),
+    payload: Schema.optional(Schema.Unknown),
+  }),
+]);
+export type TranscriptRecord = typeof TranscriptRecord.Type;
+
+export const TranscriptStreamItem = Schema.Union([
+  Schema.Struct({
+    kind: Schema.Literal("snapshot"),
+    records: Schema.Array(TranscriptRecord),
+  }),
+  Schema.Struct({
+    kind: Schema.Literal("append"),
+    records: Schema.Array(TranscriptRecord),
+  }),
+]);
+export type TranscriptStreamItem = typeof TranscriptStreamItem.Type;
+
+export class TranscriptSubscribeError extends Schema.TaggedErrorClass<TranscriptSubscribeError>()(
+  "TranscriptSubscribeError",
+  {
+    message: Schema.String,
+    threadId: Schema.String,
+  },
+) {}
+
+export const TranscriptRpcSchemas = {
+  subscribeTranscript: {
+    input: Schema.Struct({ threadId: ThreadId }),
+    output: TranscriptStreamItem,
+  },
+} as const;