diff --git a/plugins/provider-claude-code/src/event-translation.ts b/plugins/provider-claude-code/src/event-translation.ts
index aa03d5d1a..d463e4232 100644
--- a/plugins/provider-claude-code/src/event-translation.ts
+++ b/plugins/provider-claude-code/src/event-translation.ts
@@ -1362,12 +1362,22 @@ export function createClaudeEventTranslator(
           });
         }
         const message = parsedMessage.data;
-        const turnId = resolveProviderTerminalTurn({
-          events,
-          registry: args.turnState,
-          state,
-          threadId,
-        });
+        // A result whose loop the CLI opened for itself (a background-task
+        // notification) never answers accepted user input. On resume the CLI
+        // settles tasks orphaned by the previous process with such a result
+        // (num_turns 0) before it reads the prompt bb pushed; opening the
+        // pending turn here would close it empty and leave the real answer to
+        // start an unsolicited turn (#1718). Only an already-open turn (the
+        // model was reinvoked) may complete on it.
+        const turnId =
+          message.origin?.kind === "task-notification"
+            ? state.currentTurnId
+            : resolveProviderTerminalTurn({
+                events,
+                registry: args.turnState,
+                state,
+                threadId,
+              });
         if (turnId) {
           const contextWindowUsage = extractClaudeContextWindowUsage({
             fallbackModelContextWindow: state.selectedModelContextWindow,
diff --git a/plugins/provider-claude-code/src/schemas.ts b/plugins/provider-claude-code/src/schemas.ts
index e565efa5e..4580bae00 100644
--- a/plugins/provider-claude-code/src/schemas.ts
+++ b/plugins/provider-claude-code/src/schemas.ts
@@ -406,6 +406,14 @@ export const claudeResultMessageSchema = z
     result: z.unknown().optional(),
     usage: z.unknown().optional(),
     modelUsage: z.unknown().optional(),
+    // Provenance of the loop this result settles. Absent or "human" means the
+    // user's prompt; "task-notification" means the CLI reinvoked itself for a
+    // background task (including the zero-work settlement it emits on resume
+    // for tasks orphaned by the previous process, #1718).
+    origin: z
+      .object({ kind: z.string().min(1) })
+      .passthrough()
+      .optional(),
   })
   .passthrough();
 export type ClaudeResultMessage = z.infer<typeof claudeResultMessageSchema>;