diff --git a/src/agents/sessions/session-manager.ts b/src/agents/sessions/session-manager.ts
index 8e06fe8d44d..f6d56732846 100644
--- a/src/agents/sessions/session-manager.ts
+++ b/src/agents/sessions/session-manager.ts
@@ -1015,7 +1015,13 @@ function parseJsonlEntries(content: string): FileEntry[] {
   return entries;
 }
 
-function normalizeLoadedFileEntry(entry: FileEntry): FileEntry {
+/**
+ * Repairs legacy JSONL message shapes (string assistant/toolResult content) into
+ * canonical block arrays. Every legacy-JSONL ingress point — file-era transcript
+ * reads and the doctor SQLite import — must apply this so the SQLite store only
+ * ever holds canonical rows; the SQLite read path does no repair.
+ */
+export function normalizeLoadedFileEntry(entry: FileEntry): FileEntry {
   if (!isJsonRecord(entry) || entry.type !== "message" || !isJsonRecord(entry.message)) {
     return entry;
   }
diff --git a/src/commands/doctor-session-sqlite-readers.ts b/src/commands/doctor-session-sqlite-readers.ts
index 367809ecf2c..b0dd04df0d0 100644
--- a/src/commands/doctor-session-sqlite-readers.ts
+++ b/src/commands/doctor-session-sqlite-readers.ts
@@ -2,6 +2,7 @@
 import fs from "node:fs";
 import { TextDecoder } from "node:util";
 import { isRecord } from "@openclaw/normalization-core/record-coerce";
+import { normalizeLoadedFileEntry, type FileEntry } from "../agents/sessions/session-manager.js";
 import type { TranscriptEvent } from "../config/sessions/session-accessor.js";
 import { resolveSqliteTargetFromSessionStorePath } from "../config/sessions/session-sqlite-target.js";
 import type { SessionStoreTarget } from "../config/sessions/targets.js";
@@ -77,7 +78,9 @@ export function createTranscriptEventReader(
     for (const line of iterateJsonlLinesSync(transcriptPath)) {
       const parsed = parseJsonlLine(line);
       if (parsed) {
-        append(parsed as TranscriptEvent);
+        // Import is the migration boundary: repair legacy JSONL message shapes
+        // here because the SQLite runtime read path assumes canonical rows.
+        append(normalizeLoadedFileEntry(parsed as FileEntry) as TranscriptEvent);
       }
     }
   };
@@ -91,7 +94,7 @@ export function createTranscriptEventPrefixReader(
       for (const line of iterateJsonlLinesSync(transcriptPath)) {
         const parsed = parseJsonlLine(line);
         if (parsed) {
-          append(parsed as TranscriptEvent);
+          append(normalizeLoadedFileEntry(parsed as FileEntry) as TranscriptEvent);
         }
       }
     } catch {
diff --git a/src/commands/doctor-session-sqlite.test.ts b/src/commands/doctor-session-sqlite.test.ts
index 4a8a480a5a4..90fee4cf4f4 100644
--- a/src/commands/doctor-session-sqlite.test.ts
+++ b/src/commands/doctor-session-sqlite.test.ts
@@ -117,6 +117,44 @@ describe("runDoctorSessionSqlite", () => {
     }
   });
 
+  it("repairs legacy message and route shapes at the import boundary", async () => {
+    const store = createLegacyStore({
+      entryOverrides: {
+        route: "stale-custom-slot",
+        deliveryContext: { channel: "telegram", to: "123" },
+      },
+      transcriptLines: [
+        '{"type":"session","sessionId":"session-1"}',
+        '{"type":"message","id":"m1","parentId":null,"message":{"role":"assistant","content":"legacy string"}}',
+      ],
+    });
+
+    const report = await runDoctorSessionSqlite({
+      env: store.env,
+      mode: "import",
+      store: store.storePath,
+    });
+
+    expect(report.totals).toMatchObject({ importedEntries: 1, issues: 0 });
+    const imported = loadExactSqliteSessionEntry({
+      agentId: "main",
+      sessionKey: "agent:main:main",
+      storePath: store.storePath,
+    });
+    // The SQLite runtime does no read repair, so import must store canonical shapes.
+    expect(typeof imported?.entry.route).not.toBe("string");
+    const events = loadSqliteTranscriptEventsSync({
+      agentId: "main",
+      sessionId: "session-1",
+      sessionKey: "agent:main:main",
+      storePath: store.storePath,
+    });
+    const message = events.find((event) => (event as { type?: string }).type === "message") as {
+      message?: { content?: unknown };
+    };
+    expect(message?.message?.content).toEqual([{ type: "text", text: "legacy string" }]);
+  });
+
   it("imports and validates legacy sessions idempotently", async () => {
     const store = createLegacyStore();
 
@@ -1118,7 +1156,12 @@ describe("runDoctorSessionSqlite", () => {
 });
 
 function createLegacyStore(
-  params: { agentDirName?: string; customStore?: boolean; transcriptLines?: string[] } = {},
+  params: {
+    agentDirName?: string;
+    customStore?: boolean;
+    entryOverrides?: Record<string, unknown>;
+    transcriptLines?: string[];
+  } = {},
 ): TestStore {
   const tempDir = fs.mkdtempSync(path.join(os.tmpdir(), "openclaw-doctor-session-sqlite-"));
   const stateDir = path.join(tempDir, "state");
@@ -1143,6 +1186,7 @@ function createLegacyStore(
           sessionId: "session-1",
           sessionStartedAt: 1000,
           updatedAt: 2000,
+          ...params.entryOverrides,
         },
       },
       null,
diff --git a/src/commands/doctor-session-sqlite.ts b/src/commands/doctor-session-sqlite.ts
index 3e8f4aa15b1..40fc80b2131 100644
--- a/src/commands/doctor-session-sqlite.ts
+++ b/src/commands/doctor-session-sqlite.ts
@@ -11,6 +11,7 @@ import {
 import { resolveSqliteTargetFromSessionStorePath } from "../config/sessions/session-sqlite-target.js";
 import { parseSqliteSessionFileMarker } from "../config/sessions/sqlite-marker.js";
 import { normalizeStoreSessionKey } from "../config/sessions/store-entry.js";
+import { normalizeSessionEntryDelivery } from "../config/sessions/store-load.js";
 import {
   resolveAgentSessionStoreTargetsSync,
   resolveAllAgentSessionStoreTargetsSync,
@@ -323,7 +324,9 @@ function readLegacySessionRecords(
       continue;
     }
     records.push({
-      entry: value,
+      // Import is the migration boundary: repair legacy delivery/route shapes
+      // here because the SQLite runtime read path assumes canonical entries.
+      entry: normalizeSessionEntryDelivery(value),
       sessionKey,
       transcriptPath: resolveLegacyTranscriptPath(target, value),
     });
diff --git a/src/config/sessions/store-load.ts b/src/config/sessions/store-load.ts
index 0eda72008fa..2cd43e0e0b4 100644
--- a/src/config/sessions/store-load.ts
+++ b/src/config/sessions/store-load.ts
@@ -296,7 +296,12 @@ function sameDeliveryChannelRoute(
   );
 }
 
-function normalizeSessionEntryDelivery(entry: SessionEntry): SessionEntry {
+/**
+ * Rebuilds malformed/legacy delivery `route` state from the entry's delivery
+ * fields. Runs on file-era store loads and on the doctor SQLite import so the
+ * SQLite store only holds canonical delivery shapes; SQLite reads do no repair.
+ */
+export function normalizeSessionEntryDelivery(entry: SessionEntry): SessionEntry {
   const entryRoute = normalizeDeliveryChannelRoute(entry.route);
   const normalized = normalizeSessionDeliveryFields({
     route: entryRoute,