diff --git a/extensions/discord/src/doctor-contract.ts b/extensions/discord/src/doctor-contract.ts
index 5ae6fc6233d..5354f199e52 100644
--- a/extensions/discord/src/doctor-contract.ts
+++ b/extensions/discord/src/doctor-contract.ts
@@ -3,7 +3,12 @@ import type {
   ChannelDoctorLegacyConfigRule,
 } from "openclaw/plugin-sdk/channel-contract";
 import type { OpenClawConfig } from "openclaw/plugin-sdk/config-runtime";
-import { asObjectRecord, normalizeLegacyDmAliases } from "openclaw/plugin-sdk/runtime-doctor";
+import {
+  asObjectRecord,
+  normalizeLegacyDmAliases,
+  normalizeLegacyStreamingAliases,
+} from "openclaw/plugin-sdk/runtime-doctor";
+import { resolveDiscordPreviewStreamMode } from "./preview-streaming.js";
 
 const LEGACY_TTS_PROVIDER_KEYS = ["openai", "elevenlabs", "microsoft", "edge"] as const;
 
@@ -141,6 +146,16 @@ export function normalizeCompatibilityConfig({
   updated = dm.entry;
   changed = changed || dm.changed;
 
+  const streaming = normalizeLegacyStreamingAliases({
+    entry: updated,
+    pathPrefix: "channels.discord",
+    changes,
+    resolvedMode: resolveDiscordPreviewStreamMode(updated),
+    includePreviewChunk: true,
+  });
+  updated = streaming.entry;
+  changed = changed || streaming.changed;
+
   const rawAccounts = asObjectRecord(updated.accounts);
   if (rawAccounts) {
     let accountsChanged = false;
@@ -159,6 +174,15 @@ export function normalizeCompatibilityConfig({
       });
       accountEntry = accountDm.entry;
       accountChanged = accountDm.changed;
+      const accountStreaming = normalizeLegacyStreamingAliases({
+        entry: accountEntry,
+        pathPrefix: `channels.discord.accounts.${accountId}`,
+        changes,
+        resolvedMode: resolveDiscordPreviewStreamMode(accountEntry),
+        includePreviewChunk: true,
+      });
+      accountEntry = accountStreaming.entry;
+      accountChanged = accountChanged || accountStreaming.changed;
       const accountVoice = asObjectRecord(accountEntry.voice);
       if (
         accountVoice &&
diff --git a/extensions/discord/src/doctor.test.ts b/extensions/discord/src/doctor.test.ts
index 082ca0aea15..2facf450235 100644
--- a/extensions/discord/src/doctor.test.ts
+++ b/extensions/discord/src/doctor.test.ts
@@ -8,7 +8,7 @@ import {
 } from "./doctor.js";
 
 describe("discord doctor", () => {
-  it("leaves legacy discord streaming aliases untouched during doctor normalization", () => {
+  it("normalizes legacy discord streaming aliases for runtime config", () => {
     const normalize = discordDoctor.normalizeCompatibilityConfig;
     expect(normalize).toBeDefined();
     if (!normalize) {
@@ -39,22 +39,39 @@ describe("discord doctor", () => {
     });
 
     expect(result.config.channels?.discord).toEqual({
-      streamMode: "block",
-      chunkMode: "newline",
-      blockStreaming: true,
-      draftChunk: {
-        minChars: 120,
+      streaming: {
+        mode: "block",
+        chunkMode: "newline",
+        block: {
+          enabled: true,
+        },
+        preview: {
+          chunk: {
+            minChars: 120,
+          },
+        },
       },
       accounts: {
         work: {
-          streaming: false,
-          blockStreamingCoalesce: {
-            idleMs: 250,
+          streaming: {
+            mode: "off",
+            block: {
+              coalesce: {
+                idleMs: 250,
+              },
+            },
           },
         },
       },
     });
-    expect(result.changes).toEqual([]);
+    expect(result.changes).toEqual([
+      "Moved channels.discord.streamMode → channels.discord.streaming.mode (block).",
+      "Moved channels.discord.chunkMode → channels.discord.streaming.chunkMode.",
+      "Moved channels.discord.blockStreaming → channels.discord.streaming.block.enabled.",
+      "Moved channels.discord.draftChunk → channels.discord.streaming.preview.chunk.",
+      "Moved channels.discord.accounts.work.streaming (boolean) → channels.discord.accounts.work.streaming.mode (off).",
+      "Moved channels.discord.accounts.work.blockStreamingCoalesce → channels.discord.accounts.work.streaming.block.coalesce.",
+    ]);
   });
 
   it("moves account voice.tts.edge into providers.microsoft", () => {
diff --git a/src/commands/doctor-config-flow.test.ts b/src/commands/doctor-config-flow.test.ts
index 747c4be62ea..0e0cfc2bb3e 100644
--- a/src/commands/doctor-config-flow.test.ts
+++ b/src/commands/doctor-config-flow.test.ts
@@ -77,6 +77,122 @@ vi.mock("../plugins/doctor-contract-registry.js", () => {
     );
   }
 
+  function resolveDiscordStreamMode(entry: Record<string, unknown>): string {
+    if (
+      entry.streamMode === "block" ||
+      entry.streamMode === "partial" ||
+      entry.streamMode === "off"
+    ) {
+      return entry.streamMode;
+    }
+    if (entry.streaming === true) {
+      return "partial";
+    }
+    if (entry.streaming === false) {
+      return "off";
+    }
+    return "off";
+  }
+
+  function normalizeDiscordStreamingEntry(
+    entry: Record<string, unknown>,
+    pathPrefix: string,
+    changes: string[],
+  ): boolean {
+    const hasLegacyStreaming =
+      "streamMode" in entry ||
+      typeof entry.streaming === "boolean" ||
+      typeof entry.streaming === "string" ||
+      "chunkMode" in entry ||
+      "blockStreaming" in entry ||
+      "draftChunk" in entry ||
+      "blockStreamingCoalesce" in entry;
+    if (!hasLegacyStreaming) {
+      return false;
+    }
+
+    let changed = false;
+    const streaming = asRecord(entry.streaming) ?? {};
+    if (!("mode" in streaming) && ("streamMode" in entry || typeof entry.streaming !== "object")) {
+      const mode = resolveDiscordStreamMode(entry);
+      streaming.mode = mode;
+      changes.push(
+        "streamMode" in entry
+          ? `Moved ${pathPrefix}.streamMode → ${pathPrefix}.streaming.mode (${mode}).`
+          : `Moved ${pathPrefix}.streaming (boolean) → ${pathPrefix}.streaming.mode (${mode}).`,
+      );
+      changed = true;
+    }
+    if ("streamMode" in entry) {
+      delete entry.streamMode;
+      changed = true;
+    }
+    if ("chunkMode" in entry && !("chunkMode" in streaming)) {
+      streaming.chunkMode = entry.chunkMode;
+      delete entry.chunkMode;
+      changes.push(`Moved ${pathPrefix}.chunkMode → ${pathPrefix}.streaming.chunkMode.`);
+      changed = true;
+    }
+    const block = asRecord(streaming.block) ?? {};
+    if ("blockStreaming" in entry && !("enabled" in block)) {
+      block.enabled = entry.blockStreaming;
+      delete entry.blockStreaming;
+      changes.push(`Moved ${pathPrefix}.blockStreaming → ${pathPrefix}.streaming.block.enabled.`);
+      changed = true;
+    }
+    if ("blockStreamingCoalesce" in entry && !("coalesce" in block)) {
+      block.coalesce = entry.blockStreamingCoalesce;
+      delete entry.blockStreamingCoalesce;
+      changes.push(
+        `Moved ${pathPrefix}.blockStreamingCoalesce → ${pathPrefix}.streaming.block.coalesce.`,
+      );
+      changed = true;
+    }
+    if (Object.keys(block).length > 0) {
+      streaming.block = block;
+    }
+    const preview = asRecord(streaming.preview) ?? {};
+    if ("draftChunk" in entry && !("chunk" in preview)) {
+      preview.chunk = entry.draftChunk;
+      delete entry.draftChunk;
+      changes.push(`Moved ${pathPrefix}.draftChunk → ${pathPrefix}.streaming.preview.chunk.`);
+      changed = true;
+    }
+    if (Object.keys(preview).length > 0) {
+      streaming.preview = preview;
+    }
+    entry.streaming = streaming;
+    return changed;
+  }
+
+  function normalizeDiscordStreamingAliasesForTest(cfg: unknown): {
+    config: unknown;
+    changes: string[];
+  } {
+    const root = asRecord(cfg);
+    const discord = asRecord(asRecord(root?.channels)?.discord);
+    if (!root || !discord) {
+      return { config: cfg, changes: [] };
+    }
+
+    const next = structuredClone(root);
+    const nextDiscord = asRecord(asRecord(next.channels)?.discord);
+    if (!nextDiscord) {
+      return { config: cfg, changes: [] };
+    }
+
+    const changes: string[] = [];
+    normalizeDiscordStreamingEntry(nextDiscord, "channels.discord", changes);
+    const accounts = asRecord(nextDiscord.accounts);
+    for (const [accountId, accountRaw] of Object.entries(accounts ?? {})) {
+      const account = asRecord(accountRaw);
+      if (account) {
+        normalizeDiscordStreamingEntry(account, `channels.discord.accounts.${accountId}`, changes);
+      }
+    }
+    return changes.length > 0 ? { config: next, changes } : { config: cfg, changes: [] };
+  }
+
   return {
     collectRelevantDoctorPluginIds: (raw: unknown): string[] => {
       const ids = new Set<string>();
@@ -92,7 +208,7 @@ vi.mock("../plugins/doctor-contract-registry.js", () => {
       }
       return [...ids].toSorted();
     },
-    applyPluginDoctorCompatibilityMigrations: (cfg: unknown) => ({ config: cfg, changes: [] }),
+    applyPluginDoctorCompatibilityMigrations: normalizeDiscordStreamingAliasesForTest,
     listPluginDoctorLegacyConfigRules: () => [
       {
         path: ["channels", "telegram", "groupMentionsOnly"],
@@ -404,6 +520,10 @@ vi.mock("./doctor-config-preflight.js", async () => {
     await import("../plugins/doctor-contract-registry.js");
   const { findLegacyConfigIssues }: typeof import("../config/legacy.js") =
     await import("../config/legacy.js");
+  const {
+    applyRuntimeLegacyConfigMigrations,
+  }: typeof import("./doctor/shared/runtime-compat-api.js") =
+    await import("./doctor/shared/runtime-compat-api.js");
 
   function resolveConfigPath() {
     const stateDir =
@@ -430,18 +550,20 @@ vi.mock("./doctor-config-preflight.js", async () => {
           pluginIds: collectRelevantDoctorPluginIds(parsed),
         }),
       );
+      const compat = applyRuntimeLegacyConfigMigrations(parsed);
+      const effectiveConfig = compat.next ?? parsed;
       return {
         snapshot: {
           exists,
           path: configPath,
           parsed,
-          config: parsed,
-          sourceConfig: parsed,
+          config: effectiveConfig,
+          sourceConfig: effectiveConfig,
           valid: legacyIssues.length === 0,
           warnings: [],
           legacyIssues,
         },
-        baseConfig: parsed,
+        baseConfig: effectiveConfig,
       };
     }),
   };