diff --git a/packages/daemon/src/lib/rpc-handlers/space-task-handlers.ts b/packages/daemon/src/lib/rpc-handlers/space-task-handlers.ts
index e62b6576a..459c34db7 100644
--- a/packages/daemon/src/lib/rpc-handlers/space-task-handlers.ts
+++ b/packages/daemon/src/lib/rpc-handlers/space-task-handlers.ts
@@ -9,6 +9,7 @@
  */
 
 import {
+  isRateOrUsageLimited,
   isWorkflowRecoveryTransition,
   resolveNodeAgents,
   type CreateSpaceTaskParams,
@@ -469,12 +470,10 @@ export function setupSpaceTaskHandlers(
           const fromActivePaused =
             currentTask.status === 'in_progress' ||
             currentTask.status === 'blocked' ||
-            currentTask.status === 'rate_limited' ||
-            currentTask.status === 'usage_limited';
+            isRateOrUsageLimited(currentTask.status);
           const toStopped = updateParams.status === 'open' || updateParams.status === 'cancelled';
           const toBlockedFromPaused =
-            updateParams.status === 'blocked' &&
-            (currentTask.status === 'rate_limited' || currentTask.status === 'usage_limited');
+            updateParams.status === 'blocked' && isRateOrUsageLimited(currentTask.status);
           const shouldStopWorkflowForStatus =
             !!currentTask.workflowRunId && fromActivePaused && (toStopped || toBlockedFromPaused);
           // Reject bare transitions into `review`. Every task that lands in
diff --git a/packages/daemon/src/lib/space/goals/goal-service.ts b/packages/daemon/src/lib/space/goals/goal-service.ts
index e22167b81..f4ef328a3 100644
--- a/packages/daemon/src/lib/space/goals/goal-service.ts
+++ b/packages/daemon/src/lib/space/goals/goal-service.ts
@@ -11,6 +11,7 @@ import type {
   SpaceTask,
   UpdateSpaceGoalParams,
 } from '@hyperneo/shared';
+import { isRateOrUsageLimited } from '@hyperneo/shared';
 import type { Database as BunDatabase } from 'bun:sqlite';
 import type { SpaceRepository } from '../../../storage/repositories/space-repository';
 import type { SpaceTaskRepository } from '../../../storage/repositories/space-task-repository';
@@ -568,8 +569,7 @@ function isActiveTaskStatus(status: SpaceTask['status']): boolean {
     // A task paused on a rate/usage cap is still the goal's active run — it
     // auto-resumes when the cap lifts. Treating it as inactive would let the
     // goal clear activeTaskId and spawn/claim a second concurrent task.
-    status === 'rate_limited' ||
-    status === 'usage_limited'
+    isRateOrUsageLimited(status)
   );
 }
 
diff --git a/packages/daemon/src/lib/space/managers/space-task-manager.ts b/packages/daemon/src/lib/space/managers/space-task-manager.ts
index e29ebeeec..dd3309f92 100644
--- a/packages/daemon/src/lib/space/managers/space-task-manager.ts
+++ b/packages/daemon/src/lib/space/managers/space-task-manager.ts
@@ -16,6 +16,7 @@ import type {
   SpaceTaskStatus,
   UpdateSpaceTaskParams,
 } from '@hyperneo/shared';
+import { isRateOrUsageLimited } from '@hyperneo/shared';
 import type { ReactiveDatabase } from '../../../storage/reactive-database';
 import { SpaceTaskRepository } from '../../../storage/repositories/space-task-repository';
 import { Logger } from '../../logger';
@@ -749,8 +750,7 @@ export class SpaceTaskManager {
         // A dependent paused on a rate/usage cap must be cancelled too —
         // otherwise recoverRateLimitedTasks would later restore it to
         // in_progress and resume work despite the cancelled prerequisite.
-        t.status === 'rate_limited' ||
-        t.status === 'usage_limited'
+        isRateOrUsageLimited(t.status)
       ) {
         const cancelled = await this.setTaskStatus(t.id, 'cancelled', {
           result: `Dependency task ${taskId} was cancelled`,
diff --git a/packages/daemon/src/lib/space/runtime/space-runtime-service.ts b/packages/daemon/src/lib/space/runtime/space-runtime-service.ts
index 131ce3d41..9041d14ab 100644
--- a/packages/daemon/src/lib/space/runtime/space-runtime-service.ts
+++ b/packages/daemon/src/lib/space/runtime/space-runtime-service.ts
@@ -21,6 +21,7 @@ import type {
   SpaceWorkflowRun,
   UpdateSpaceTaskParams,
 } from '@hyperneo/shared';
+import { isRateOrUsageLimited } from '@hyperneo/shared';
 import type { MessageRecord, ActorRef } from '../../../../../messaging/src/types';
 import { canonicalAgentHandle, SpaceActorRegistryAdapter } from '../actor-registry';
 import type { ExternalEventPublishedPayload } from '../../external-events/external-event-service';
@@ -1072,11 +1073,7 @@ export class SpaceRuntimeService {
     const activeTasks = taskRepo
       .listBySpace(spaceId)
       .filter(
-        (t) =>
-          t.status === 'in_progress' ||
-          t.status === 'open' ||
-          t.status === 'rate_limited' ||
-          t.status === 'usage_limited'
+        (t) => t.status === 'in_progress' || t.status === 'open' || isRateOrUsageLimited(t.status)
       );
 
     await Promise.allSettled(
diff --git a/packages/daemon/src/lib/space/runtime/space-runtime.ts b/packages/daemon/src/lib/space/runtime/space-runtime.ts
index 6e479ee59..c3a4b5f68 100644
--- a/packages/daemon/src/lib/space/runtime/space-runtime.ts
+++ b/packages/daemon/src/lib/space/runtime/space-runtime.ts
@@ -37,6 +37,7 @@ import type { SDKMessage } from '@hyperneo/shared/sdk';
 import {
   computeGateDefaults,
   isChannelCyclic,
+  isRateOrUsageLimited,
   isWorkflowRunSucceeded,
   isWorkflowRunWaiting,
   MAX_SPACE_CONCURRENT_TASKS,
@@ -7616,7 +7617,7 @@ export class SpaceRuntime {
     // `recoverRateLimitedTasks()` later restores the task to `in_progress`
     // (reset time passed), the next tick re-enters the normal path and the
     // execution is re-driven then.
-    if (canonicalTask.status === 'rate_limited' || canonicalTask.status === 'usage_limited') {
+    if (isRateOrUsageLimited(canonicalTask.status)) {
       return;
     }
 
@@ -9986,8 +9987,7 @@ export class SpaceRuntime {
       (task) =>
         task.status === 'in_progress' ||
         task.status === 'approved' ||
-        task.status === 'rate_limited' ||
-        task.status === 'usage_limited'
+        isRateOrUsageLimited(task.status)
     ).length;
   }
 
diff --git a/packages/daemon/src/lib/space/runtime/task-agent-manager.ts b/packages/daemon/src/lib/space/runtime/task-agent-manager.ts
index 5373a1416..a2cb2887b 100644
--- a/packages/daemon/src/lib/space/runtime/task-agent-manager.ts
+++ b/packages/daemon/src/lib/space/runtime/task-agent-manager.ts
@@ -33,7 +33,7 @@
  * registered `onComplete` callbacks are fired.
  */
 
-import { generateUUID, resolveNodeAgents } from '@hyperneo/shared';
+import { generateUUID, isRateOrUsageLimited, resolveNodeAgents } from '@hyperneo/shared';
 import type {
   Space,
   SpaceTask,
@@ -695,7 +695,7 @@ export class TaskAgentManager {
     // overwriting those would lose the approval/review lifecycle and the
     // post-approval route. The session-level cooldown still holds regardless —
     // this guard only protects the task row.
-    const isLimited = task.status === 'rate_limited' || task.status === 'usage_limited';
+    const isLimited = isRateOrUsageLimited(task.status);
     if (task.status !== 'in_progress' && !isLimited) {
       return;
     }
@@ -748,7 +748,7 @@ export class TaskAgentManager {
   private async restoreTaskFromRateLimit(taskId: string): Promise<void> {
     const task = this.config.taskRepo.getTask(taskId);
     if (!task) return;
-    if (task.status !== 'rate_limited' && task.status !== 'usage_limited') return;
+    if (!isRateOrUsageLimited(task.status)) return;
     this.config.taskRepo.updateTask(taskId, { status: 'in_progress', restrictions: null });
     this.emitTaskUpdatedEvent(taskId);
   }
@@ -3641,8 +3641,7 @@ export class TaskAgentManager {
     // paused status until the cross-restart sweep restores it — gate on it too.
     const parentTaskId = this.findParentTaskIdForSubSession(sessionId);
     const parentTask = parentTaskId ? this.config.taskRepo.getTask(parentTaskId) : null;
-    const parentLimited =
-      parentTask?.status === 'rate_limited' || parentTask?.status === 'usage_limited';
+    const parentLimited = parentTask ? isRateOrUsageLimited(parentTask.status) : false;
     if ((deliveryMode === 'defer' && isBusy) || inRateLimitCooldown || parentLimited) {
       const dbId = this.config.db.saveUserMessage(sessionId, sdkUserMessage, 'deferred', origin);
       return dbId;
diff --git a/packages/daemon/src/lib/space/runtime/workflow-node-execution-validation.ts b/packages/daemon/src/lib/space/runtime/workflow-node-execution-validation.ts
index ca77effdd..08ee39c95 100644
--- a/packages/daemon/src/lib/space/runtime/workflow-node-execution-validation.ts
+++ b/packages/daemon/src/lib/space/runtime/workflow-node-execution-validation.ts
@@ -1,5 +1,5 @@
 import type { NodeExecution, SpaceTask, SpaceWorkflow } from '@hyperneo/shared';
-import { resolveNodeAgents } from '@hyperneo/shared';
+import { isRateOrUsageLimited, resolveNodeAgents } from '@hyperneo/shared';
 
 export type ExecutionWorkflowValidationResult =
   | { valid: true }
@@ -107,7 +107,7 @@ export function validateTaskAllowsSpawn(task: SpaceTask): void {
   // gates the out-of-band activation path (external-event / peer-handoff
   // spawns via activateTargetSessionsForMessage), which bypasses the tick loop's
   // paused-task guard in processRunTick.
-  if (task.status === 'rate_limited' || task.status === 'usage_limited') {
+  if (isRateOrUsageLimited(task.status)) {
     // Transient (NOT permanent): the runtime leaves the execution `pending` and
     // re-attempts on a later tick once recoverRateLimitedTasks restores the
     // task. A PermanentSpawnError here would cancel + unregister the execution,
diff --git a/packages/daemon/src/storage/repositories/space-task-repository.ts b/packages/daemon/src/storage/repositories/space-task-repository.ts
index 1ac4da124..e8afa4c6c 100644
--- a/packages/daemon/src/storage/repositories/space-task-repository.ts
+++ b/packages/daemon/src/storage/repositories/space-task-repository.ts
@@ -5,7 +5,7 @@
  */
 
 import type { Database as BunDatabase } from 'bun:sqlite';
-import { generateUUID } from '@hyperneo/shared';
+import { generateUUID, isRateOrUsageLimited } from '@hyperneo/shared';
 import type {
   SpaceTask,
   SpaceBlockReason,
@@ -524,8 +524,7 @@ export class SpaceTaskRepository {
     if (
       params.restrictions === undefined &&
       params.status !== undefined &&
-      params.status !== 'rate_limited' &&
-      params.status !== 'usage_limited'
+      !isRateOrUsageLimited(params.status)
     ) {
       fields.push('restrictions = ?');
       values.push(null);
diff --git a/packages/shared/src/types/space-utils.ts b/packages/shared/src/types/space-utils.ts
index 89b944bb2..e8cfe9c7e 100644
--- a/packages/shared/src/types/space-utils.ts
+++ b/packages/shared/src/types/space-utils.ts
@@ -89,6 +89,29 @@ export function isWorkflowRunWaiting(status: WorkflowRunStatus | 'failed'): stat
   return status === 'blocked';
 }
 
+// ============================================================================
+// Space task rate/usage-limit paused-status predicate
+// ============================================================================
+
+/**
+ * The task statuses that pause a run on an API rate/usage cap.
+ *
+ * A task in one of these statuses still holds its concurrency slot, is not
+ * spawnable, counts as action-required, and is treated as active by the goal
+ * runtime — but it normally auto-resumes once the cap lifts.
+ *
+ * Single source of truth: every call site that asks "is this a paused-on-cap
+ * status?" routes through here, so the membership of the paused set is defined
+ * in one place. Adding or removing such a status is a one-line edit that every
+ * consumer picks up in lockstep — no duplicated `'rate_limited' ||
+ * 'usage_limited'` literals to keep in sync across files.
+ */
+export function isRateOrUsageLimited(
+  status: SpaceTaskStatus
+): status is 'rate_limited' | 'usage_limited' {
+  return status === 'rate_limited' || status === 'usage_limited';
+}
+
 // ============================================================================
 // Space task workflow recovery transitions
 // ============================================================================
@@ -109,7 +132,7 @@ export function isWorkflowRecoveryTransition(
     (from === 'done' && to === 'in_progress') ||
     (from === 'blocked' && (to === 'open' || to === 'in_progress')) ||
     (from === 'cancelled' && (to === 'open' || to === 'in_progress')) ||
-    ((from === 'rate_limited' || from === 'usage_limited') && to === 'in_progress')
+    (isRateOrUsageLimited(from) && to === 'in_progress')
   );
 }
 
diff --git a/packages/shared/tests/space-utils.test.ts b/packages/shared/tests/space-utils.test.ts
index b77dfbaf9..6a6059f5c 100644
--- a/packages/shared/tests/space-utils.test.ts
+++ b/packages/shared/tests/space-utils.test.ts
@@ -1,5 +1,6 @@
 import { describe, test, expect } from 'bun:test';
 import type {
+  SpaceTaskStatus,
   SpaceWorkerAgent,
   SpaceWorkflow,
   WorkflowChannel,
@@ -16,6 +17,7 @@ import {
   isWorkflowRunSucceeded,
   isWorkflowRunTerminal,
   isWorkflowRunWaiting,
+  isRateOrUsageLimited,
   isWorkflowRecoveryTransition,
 } from '../src/types/space-utils.ts';
 
@@ -380,6 +382,57 @@ describe('getChannelsToNode', () => {
   });
 });
 
+// ============================================================================
+// isRateOrUsageLimited — single source of truth for paused-on-cap statuses
+// ============================================================================
+
+describe('isRateOrUsageLimited — single source of truth for paused-on-cap statuses', () => {
+  const ALL_SPACE_TASK_STATUSES = [
+    'draft',
+    'open',
+    'in_progress',
+    'review',
+    'approved',
+    'done',
+    'blocked',
+    'cancelled',
+    'archived',
+    'rate_limited',
+    'usage_limited',
+  ] as const satisfies readonly SpaceTaskStatus[];
+
+  // Compile-time exhaustiveness: typecheck error if any SpaceTaskStatus is
+  // absent from the array above. A newly-added status that isn't listed here
+  // makes `true` unassignable to `never`, turning a silent coverage hole into a
+  // build failure — which is the guarantee this test exists to provide.
+  type _ExhaustiveSpaceTaskStatuses =
+    SpaceTaskStatus extends (typeof ALL_SPACE_TASK_STATUSES)[number] ? true : never;
+  const _assertExhaustive: _ExhaustiveSpaceTaskStatuses = true;
+
+  test('returns true exactly for rate_limited and usage_limited', () => {
+    const paused = ALL_SPACE_TASK_STATUSES.filter(isRateOrUsageLimited);
+    expect([...paused].sort()).toEqual(['rate_limited', 'usage_limited']);
+  });
+
+  test('isWorkflowRecoveryTransition derives its paused arm from the predicate', () => {
+    // Every consumer of the paused set routes through isRateOrUsageLimited, so
+    // the recovery transition's rate/usage arm must agree with the predicate
+    // across the full status set. If a status is added to the predicate, this
+    // consumer (and every other) picks it up automatically — no per-site
+    // literal to update. The web consumer (isActionRequired) is covered
+    // exhaustively in task-filters.test.ts; the daemon consumers by the
+    // rate-limit integration tests.
+    for (const status of ALL_SPACE_TASK_STATUSES) {
+      expect(isWorkflowRecoveryTransition(status, 'in_progress')).toBe(
+        isRateOrUsageLimited(status) ||
+          status === 'done' ||
+          status === 'blocked' ||
+          status === 'cancelled'
+      );
+    }
+  });
+});
+
 // ============================================================================
 // isWorkflowRecoveryTransition — paused-task manual resume/cancel routing
 // ============================================================================
diff --git a/packages/web/src/lib/task-filters.ts b/packages/web/src/lib/task-filters.ts
index 3923720e3..287585e24 100644
--- a/packages/web/src/lib/task-filters.ts
+++ b/packages/web/src/lib/task-filters.ts
@@ -10,7 +10,7 @@
  * computed signals, and unit tests.
  */
 
-import type { SpaceTask } from '@hyperneo/shared';
+import { isRateOrUsageLimited, type SpaceTask } from '@hyperneo/shared';
 
 /**
  * Minimum shape needed by `isActionRequired` — a structural subset of
@@ -31,12 +31,7 @@ export type ActionRequiredTaskInput = Pick<SpaceTask, 'status'>;
  * even though it normally auto-resumes when the cap lifts).
  */
 export function isActionRequired(task: ActionRequiredTaskInput): boolean {
-  return (
-    task.status === 'blocked' ||
-    task.status === 'review' ||
-    task.status === 'rate_limited' ||
-    task.status === 'usage_limited'
-  );
+  return task.status === 'blocked' || task.status === 'review' || isRateOrUsageLimited(task.status);
 }
 
 /**