diff --git a/app/src/components/approvals/inline-approval.tsx b/app/src/components/approvals/inline-approval.tsx
index aa52504aec..5d7c2575f1 100644
--- a/app/src/components/approvals/inline-approval.tsx
+++ b/app/src/components/approvals/inline-approval.tsx
@@ -149,6 +149,24 @@ export function InlineApproval({
         ) : null}
       </AnimatePresence>
       {pending ? null : fallback}
+      {/*
+        The conversation could not be carried on after this was decided, so the step above never got
+        its result and would say "Send message…" for good. What came of it is said here, from the
+        request itself, which is the one place that still knows.
+      */}
+      {request?.left ? (
+        <p
+          className={
+            request.left.done
+              ? "mt-1 text-muted-foreground text-sm"
+              : "mt-1 text-destructive text-sm"
+          }
+          data-testid="approval-left"
+          role={request.left.done ? "status" : "alert"}
+        >
+          {request.left.message}
+        </p>
+      ) : null}
     </>
   );
 }
@@ -189,9 +207,13 @@ export function PendingApprovals({
   toolCallIds: readonly string[];
 }) {
   const inbox = useQuery(approvalInboxOptions());
+  /*
+   * And one whose conversation could not be carried on after it was decided (`left`): what came of
+   * it is said beside the group too, since the folded line ("Used Slack") says nothing of it.
+   */
   const waiting = new Set(
     (inbox.data?.requests ?? [])
-      .filter((request) => request.status === "pending")
+      .filter((request) => request.status === "pending" || request.left)
       .flatMap((request) =>
         request.action.toolCallId ? [request.action.toolCallId] : [],
       ),
diff --git a/app/src/components/channels/channel-chat.tsx b/app/src/components/channels/channel-chat.tsx
index 77b57a8ef6..2891b618c5 100644
--- a/app/src/components/channels/channel-chat.tsx
+++ b/app/src/components/channels/channel-chat.tsx
@@ -44,6 +44,7 @@ import {
   answerPersonQuestionMutationOptions,
   approvalInboxOptions,
   carryingOnAfterApproval,
+  leftAnswers,
 } from "@/lib/approvals";
 import { attachmentUrl } from "@/lib/channels/attachments";
 import {
@@ -1267,7 +1268,11 @@ export function ChannelChat({
     report(trimmed || describeAttachments(attachments), null);
 
     // Providers reject later turns if prior tool calls have no result; repair before sending.
-    const repaired = repairUnansweredToolCalls(target.messages);
+    const repaired = repairUnansweredToolCalls(
+      target.messages,
+      undefined,
+      leftAnswers(queryClient.getQueryData(approvalInboxOptions().queryKey)),
+    );
     if (repaired !== target.messages) {
       target.setMessages(repaired as typeof target.messages);
     }
diff --git a/app/src/lib/approvals.ts b/app/src/lib/approvals.ts
index 7750d1a5d1..f4bf8709be 100644
--- a/app/src/lib/approvals.ts
+++ b/app/src/lib/approvals.ts
@@ -67,6 +67,11 @@ export type ApprovalInboxData = {
     decidedAt?: string | null;
     /** What the person answered; null while it waits. */
     decision?: ApprovalDecision | null;
+    /**
+     * Set when the conversation could not be carried on after this was decided: whether the action
+     * was done, the sentence that says so, and the answer the Bot never received.
+     */
+    left?: { done: boolean; message: string; answer: string };
     action: {
       botId: string;
       toolRef: string;
@@ -121,6 +126,21 @@ export type ApprovalInboxData = {
     createdAt: string;
   }[];
 };
+/**
+ * The answers the Bot never received, by the call each belongs to: actions decided whose
+ * conversation could not be carried on (`left`). Sent with the next message in place of "no result
+ * came back", so the Bot knows a post it asked for went out and does not make it again.
+ */
+export function leftAnswers(
+  inbox: ApprovalInboxData | undefined,
+): ReadonlyMap<string, string> {
+  const answers = new Map<string, string>();
+  for (const request of inbox?.requests ?? [])
+    if (request.left && request.action.toolCallId)
+      answers.set(request.action.toolCallId, request.left.answer);
+  return answers;
+}
+
 export const approvalInboxOptions = () =>
   queryOptions({
     queryKey: ["approvals"],
diff --git a/app/src/lib/copilot/repair-history.ts b/app/src/lib/copilot/repair-history.ts
index 02093dca40..8f37f4413c 100644
--- a/app/src/lib/copilot/repair-history.ts
+++ b/app/src/lib/copilot/repair-history.ts
@@ -129,6 +129,11 @@ export function repairUnansweredToolCalls(
    * repair branch, which every test avoided by passing its own. Biome said so, as an unused import.
    */
   mintId: () => string = newId,
+  /**
+   * Answers known from somewhere other than the thread, by call id: an approved action whose
+   * conversation could not be carried on keeps its result on the request (`leftAnswers`).
+   */
+  known: ReadonlyMap<string, string> = new Map(),
 ): ReadonlyArray<Message> {
   /*
    * A held step's stand-in is not its answer. Counted as one, it sat right after the call, so the
@@ -188,7 +193,7 @@ export function repairUnansweredToolCalls(
             id: mintId(),
             role: "tool",
             toolCallId: call.id,
-            content: UNANSWERED,
+            content: known.get(call.id) || UNANSWERED,
           } as Message),
       );
       // A duplicated call id may only receive one repair result.
diff --git a/app/tests/approval-left-not-carried-on.test.tsx b/app/tests/approval-left-not-carried-on.test.tsx
new file mode 100644
index 0000000000..d9e1df5961
--- /dev/null
+++ b/app/tests/approval-left-not-carried-on.test.tsx
@@ -0,0 +1,164 @@
+import { afterAll, afterEach, beforeAll, expect, test } from "bun:test";
+import type { Message } from "@ag-ui/core";
+import { GlobalRegistrator } from "@happy-dom/global-registrator";
+import { QueryClient, QueryClientProvider } from "@tanstack/react-query";
+import { cleanup, render, waitFor } from "@testing-library/react";
+import {
+  InlineApproval,
+  PendingApprovals,
+} from "@/components/approvals/inline-approval";
+import { type ApprovalInboxData, leftAnswers } from "@/lib/approvals";
+import {
+  repairUnansweredToolCalls,
+  UNANSWERED,
+} from "@/lib/copilot/repair-history";
+import { settleReactWork } from "./settle-react-work";
+
+/*
+ * FOUND IN TESTING. A person allowed a Slack post, the post went out, and the conversation could
+ * not be carried on after it. The step sat on "Send message…" with nothing said, so the person
+ * never learned the post was made, and the next message sent the Bot "no result came back" for a
+ * call that had in fact run, which invites it to post again.
+ *
+ * The request now says what came of it (`left`). The step draws that sentence, and the next message
+ * sends the Bot the answer the conversation never received.
+ */
+
+const originalFetch = global.fetch;
+beforeAll(() => {
+  GlobalRegistrator.register();
+});
+afterEach(() => {
+  cleanup();
+  global.fetch = originalFetch;
+});
+afterAll(async () => {
+  await settleReactWork();
+  GlobalRegistrator.unregister();
+});
+
+const DONE =
+  "Done: send message on Slack. OpenBot couldn't carry on the conversation after that, so nothing else was done. Send a message to continue.";
+const ANSWER =
+  'Ran: the app made this change. It answered: {"ok":true,"channel":"C0LAUNCH01"}';
+
+/** `GET /api/approvals`, with one request whose conversation was never carried on. */
+function inbox(left: { done: boolean; message: string; answer: string }) {
+  return {
+    enabled: true,
+    requests: [
+      {
+        id: "approval-1",
+        status: "completed",
+        createdAt: "2026-11-14T04:06:40Z",
+        decidedAt: "2026-11-14T04:06:47Z",
+        decision: "allow_once",
+        left,
+        action: {
+          botId: "personal-assistant",
+          toolRef: "composio-slack/SLACK_SEND_MESSAGE",
+          effect: "write",
+          scope: "composio-slack",
+          threadId: "thread-1",
+          toolCallId: "call-send",
+          args: { channel: "C0LAUNCH01", markdown_text: "the deck is ready" },
+          target: null,
+        },
+      },
+    ],
+    rules: [],
+    teamRules: [],
+    questions: [],
+  } as unknown as ApprovalInboxData;
+}
+
+function drawn(data: ApprovalInboxData) {
+  global.fetch = (async () => Response.json(data)) as unknown as typeof fetch;
+  const client = new QueryClient({
+    defaultOptions: { queries: { retry: false } },
+  });
+  return render(
+    <QueryClientProvider client={client}>
+      <InlineApproval fallback={<p>Send message…</p>} toolCallId="call-send" />
+    </QueryClientProvider>,
+  );
+}
+
+test("a step whose conversation could not be carried on says the action was done and what to do next", async () => {
+  const view = drawn(inbox({ done: true, message: DONE, answer: ANSWER }));
+  const told = await waitFor(() => view.getByTestId("approval-left"));
+  expect(told.textContent).toBe(DONE);
+  // Said as a status under the step, which is still drawn: nothing replaces the step itself.
+  expect(told.getAttribute("role")).toBe("status");
+  expect(view.getByText("Send message…")).toBeTruthy();
+});
+
+test("a step folded into its group says so beside the group, where a waiting card would be", async () => {
+  global.fetch = (async () =>
+    Response.json(
+      inbox({ done: true, message: DONE, answer: ANSWER }),
+    )) as unknown as typeof fetch;
+  const client = new QueryClient({
+    defaultOptions: { queries: { retry: false } },
+  });
+  const view = render(
+    <QueryClientProvider client={client}>
+      <PendingApprovals toolCallIds={["call-find", "call-send"]} />
+    </QueryClientProvider>,
+  );
+  const told = await waitFor(() => view.getByTestId("approval-left"));
+  expect(told.textContent).toBe(DONE);
+});
+
+test("one that was not done says so as an alert", async () => {
+  const message =
+    "Not done: send message on Slack. OpenBot couldn't carry on the conversation. Send a message to try again.";
+  const view = drawn(inbox({ done: false, message, answer: "Not done." }));
+  const told = await waitFor(() => view.getByTestId("approval-left"));
+  expect(told.textContent).toBe(message);
+  expect(told.getAttribute("role")).toBe("alert");
+});
+
+test("the next message sends the Bot the answer it never received, not that nothing came back", () => {
+  const history = [
+    { id: "u1", role: "user", content: "Post 'the deck is ready' in #launch." },
+    {
+      id: "a1",
+      role: "assistant",
+      content: "",
+      toolCalls: [
+        {
+          id: "call-send",
+          type: "function",
+          function: { name: "SLACK_SEND_MESSAGE", arguments: "{}" },
+        },
+        {
+          id: "call-other",
+          type: "function",
+          function: { name: "SLACK_FIND_USERS", arguments: "{}" },
+        },
+      ],
+    },
+  ] as unknown as Message[];
+  const known = leftAnswers(
+    inbox({ done: true, message: DONE, answer: ANSWER }),
+  );
+  const repaired = repairUnansweredToolCalls(history, () => "minted", known);
+  const results = repaired.filter((message) => message.role === "tool") as {
+    toolCallId: string;
+    content: string;
+  }[];
+  expect(results.map((result) => [result.toolCallId, result.content])).toEqual([
+    ["call-send", ANSWER],
+    // A call nothing is known about keeps the words it always had.
+    ["call-other", UNANSWERED],
+  ]);
+  // With nothing known, the same history is repaired as before.
+  expect(
+    (
+      repairUnansweredToolCalls(history, () => "minted").filter(
+        (message) => message.role === "tool",
+      ) as { content: string }[]
+    ).map((result) => result.content),
+  ).toEqual([UNANSWERED, UNANSWERED]);
+});