diff --git a/apps/backend/src/db/migrations/001_fulfillment_rebuild.sql b/apps/backend/src/db/migrations/001_fulfillment_rebuild.sql
index 65539ceb..9c7a0006 100644
--- a/apps/backend/src/db/migrations/001_fulfillment_rebuild.sql
+++ b/apps/backend/src/db/migrations/001_fulfillment_rebuild.sql
@@ -209,7 +209,7 @@ CREATE INDEX IF NOT EXISTS idx_task_events_task_created_at ON task_events(task_i
 CREATE TABLE IF NOT EXISTS task_runtime_contexts (
   id BIGSERIAL PRIMARY KEY,
   task_id BIGINT NOT NULL UNIQUE REFERENCES fulfillment_tasks(id) ON DELETE CASCADE,
-  browser_session_id TEXT NOT NULL DEFAULT '',
+  runtime_session_id TEXT NOT NULL DEFAULT '',
   login_type TEXT NOT NULL DEFAULT '',
   nickname TEXT NOT NULL DEFAULT '',
   role_id TEXT NOT NULL DEFAULT '',
diff --git a/apps/backend/src/db/migrations/009_rename_runtime_session_id.sql b/apps/backend/src/db/migrations/009_rename_runtime_session_id.sql
new file mode 100644
index 00000000..bbf88316
--- /dev/null
+++ b/apps/backend/src/db/migrations/009_rename_runtime_session_id.sql
@@ -0,0 +1,20 @@
+DO $$
+BEGIN
+  IF to_regclass('public.task_runtime_contexts') IS NOT NULL
+     AND EXISTS (
+       SELECT 1
+       FROM information_schema.columns
+       WHERE table_schema = 'public'
+         AND table_name = 'task_runtime_contexts'
+         AND column_name = 'browser_session_id'
+     )
+     AND NOT EXISTS (
+       SELECT 1
+       FROM information_schema.columns
+       WHERE table_schema = 'public'
+         AND table_name = 'task_runtime_contexts'
+         AND column_name = 'runtime_session_id'
+     ) THEN
+    ALTER TABLE task_runtime_contexts RENAME COLUMN browser_session_id TO runtime_session_id;
+  END IF;
+END $$;
diff --git a/apps/backend/src/repositories/task-repo.ts b/apps/backend/src/repositories/task-repo.ts
index 3dcac122..029a4b86 100644
--- a/apps/backend/src/repositories/task-repo.ts
+++ b/apps/backend/src/repositories/task-repo.ts
@@ -15,7 +15,7 @@ import type {
 type TaskQueryExecutor = (text: string, params?: unknown[]) => Promise<{ rows: unknown[] }>
 
 type TaskRuntimeContextRow = {
-  browser_session_id: string
+  runtime_session_id: string
   login_type: string
   nickname: string
   role_id: string
@@ -33,7 +33,7 @@ const TASK_FIELDS = `
   ct.token AS primary_claim_token,
   ct.status AS primary_claim_token_status,
   ct.expired_at AS primary_claim_expires_at,
-  ctx.browser_session_id,
+  ctx.runtime_session_id,
   ctx.login_type,
   ctx.nickname,
   ctx.role_id,
@@ -222,7 +222,7 @@ export async function updateTask(taskId: number | string, patch: TaskUpdatePatch
 
     if (containsRuntimeContextPatch(patch)) {
       await upsertTaskRuntimeContextWithClient(client, Number(taskId), {
-        runtimeSessionId: patch.browser_session_id,
+        runtimeSessionId: patch.runtime_session_id,
         loginType: patch.login_type,
         nickname: patch.nickname,
         roleId: patch.role_id,
@@ -346,7 +346,7 @@ async function upsertTaskRuntimeContextWithClient(
   const current = currentResult.rows[0] || null
 
   const next = {
-    browser_session_id: patch.runtimeSessionId ?? current?.browser_session_id ?? '',
+    runtime_session_id: patch.runtimeSessionId ?? current?.runtime_session_id ?? '',
     login_type: patch.loginType ?? current?.login_type ?? '',
     nickname: patch.nickname ?? current?.nickname ?? '',
     role_id: patch.roleId ?? current?.role_id ?? '',
@@ -364,7 +364,7 @@ async function upsertTaskRuntimeContextWithClient(
       `
         INSERT INTO task_runtime_contexts (
           task_id,
-          browser_session_id,
+          runtime_session_id,
           login_type,
           nickname,
           role_id,
@@ -380,7 +380,7 @@ async function upsertTaskRuntimeContextWithClient(
       `,
       [
         Number(taskId),
-        next.browser_session_id,
+        next.runtime_session_id,
         next.login_type,
         next.nickname,
         next.role_id,
@@ -401,7 +401,7 @@ async function upsertTaskRuntimeContextWithClient(
     `
       UPDATE task_runtime_contexts
       SET
-        browser_session_id = $1,
+        runtime_session_id = $1,
         login_type = $2,
         nickname = $3,
         role_id = $4,
@@ -415,7 +415,7 @@ async function upsertTaskRuntimeContextWithClient(
       WHERE task_id = $12
     `,
     [
-      next.browser_session_id,
+      next.runtime_session_id,
       next.login_type,
       next.nickname,
       next.role_id,
@@ -446,7 +446,7 @@ async function getTaskByIdWithExecutor(
 
 function containsRuntimeContextPatch(patch: TaskUpdatePatch = {}): boolean {
   return [
-    'browser_session_id',
+    'runtime_session_id',
     'login_type',
     'nickname',
     'role_id',
diff --git a/apps/backend/src/services/admin/admin-read-shared-helpers.test.ts b/apps/backend/src/services/admin/admin-read-shared-helpers.test.ts
index 94a82325..697ac409 100644
--- a/apps/backend/src/services/admin/admin-read-shared-helpers.test.ts
+++ b/apps/backend/src/services/admin/admin-read-shared-helpers.test.ts
@@ -11,7 +11,7 @@ test('resolveAdminTaskScreenshotUrl lets support view final redeemed screenshot'
   const task = {
     id: 12,
     screenshot_path: '/tmp/redeemed-12.png',
-    browser_session_id: '',
+    runtime_session_id: '',
   }
 
   const screenshotUrl = await resolveAdminTaskScreenshotUrl(task, createAdminViewerContext({ role: 'support' }))
@@ -19,11 +19,11 @@ test('resolveAdminTaskScreenshotUrl lets support view final redeemed screenshot'
   assert.equal(screenshotUrl, '/api/v1/admin/tasks/12/screenshot')
 })
 
-test('resolveAdminTaskScreenshotUrl falls back to review screenshot when only browser session exists', async () => {
+test('resolveAdminTaskScreenshotUrl falls back to review screenshot when runtime session exists', async () => {
   const task = {
     id: 13,
     screenshot_path: '',
-    browser_session_id: 'browser-session-13',
+    runtime_session_id: 'runtime-session-13',
   }
 
   const screenshotUrl = await resolveAdminTaskScreenshotUrl(task, createAdminViewerContext({ role: 'support' }))
diff --git a/apps/backend/src/services/admin/admin-read-shared-helpers.ts b/apps/backend/src/services/admin/admin-read-shared-helpers.ts
index 16a67c02..f3557f3f 100644
--- a/apps/backend/src/services/admin/admin-read-shared-helpers.ts
+++ b/apps/backend/src/services/admin/admin-read-shared-helpers.ts
@@ -197,7 +197,7 @@ export async function resolveAdminTaskScreenshotUrl(
   task: TaskLike,
   viewerContext: AdminViewerContext,
 ): Promise<string> {
-  if (task.screenshot_path || task.browser_session_id) {
+  if (task.screenshot_path || task.runtime_session_id) {
     return `/api/v1/admin/tasks/${task.id}/screenshot`
   }
 
diff --git a/apps/backend/src/services/admin/admin-task-read-helpers.ts b/apps/backend/src/services/admin/admin-task-read-helpers.ts
index 2ef2d6e9..c08b5609 100644
--- a/apps/backend/src/services/admin/admin-task-read-helpers.ts
+++ b/apps/backend/src/services/admin/admin-task-read-helpers.ts
@@ -59,7 +59,7 @@ export function mapAdminTaskSummary(
     systemBindingStatus: binding.systemBindingStatus,
     userBindingStatus: binding.userBindingStatus,
     loginType: task.login_type,
-    runtimeSessionId: task.browser_session_id,
+    runtimeSessionId: task.runtime_session_id,
     claimedAt: task.claimed_at,
     roleConfirmedAt: task.role_confirmed_at,
     redeemedAt: task.redeemed_at,
@@ -125,7 +125,7 @@ export function mapAdminTaskListItem(
     loginType: task.login_type,
     roleName: task.role_name,
     roleId: task.role_id,
-    runtimeSessionId: task.browser_session_id,
+    runtimeSessionId: task.runtime_session_id,
     claimedAt: task.claimed_at,
     roleConfirmedAt: task.role_confirmed_at,
     redeemedAt: task.redeemed_at,
diff --git a/apps/backend/src/services/claim/kuaishou-cloud-claim-context.ts b/apps/backend/src/services/claim/kuaishou-cloud-claim-context.ts
index 2da744f3..1e9b729a 100644
--- a/apps/backend/src/services/claim/kuaishou-cloud-claim-context.ts
+++ b/apps/backend/src/services/claim/kuaishou-cloud-claim-context.ts
@@ -96,7 +96,7 @@ export function buildClaimDetailPayload({ claimToken, task, order, orderItem })
       redeemedAt: task.redeemed_at,
       loginType: task.login_type,
       lastError: task.last_error,
-      runtimeSessionId: task.browser_session_id,
+      runtimeSessionId: task.runtime_session_id,
     },
     order: {
       orderId: order.id,
diff --git a/apps/backend/src/types/repository-inputs.ts b/apps/backend/src/types/repository-inputs.ts
index 6be924e7..29759ba1 100644
--- a/apps/backend/src/types/repository-inputs.ts
+++ b/apps/backend/src/types/repository-inputs.ts
@@ -118,7 +118,7 @@ export type TaskUpdatePatch = {
   role_confirmed_at?: string | null
   redeemed_at?: string | null
   updated_at?: string
-  browser_session_id?: string
+  runtime_session_id?: string
   login_type?: string
   nickname?: string
   role_id?: string
diff --git a/apps/backend/src/types/repository-rows.ts b/apps/backend/src/types/repository-rows.ts
index 136197b0..03ed989a 100644
--- a/apps/backend/src/types/repository-rows.ts
+++ b/apps/backend/src/types/repository-rows.ts
@@ -51,7 +51,7 @@ export type TaskRow = {
   requires_claim: boolean
   user_action_status: string
   attempt_count: number
-  browser_session_id: string
+  runtime_session_id: string
   login_type: string
   nickname: string
   role_name: string