feat(openworkflow, server, dashboard): add resume workflow run functionality and UI components

apps/dashboard/src/components/run-action-dialog.tsx

@@ -0,0 +1,118 @@
+import {
+  AlertDialog,
+  AlertDialogAction,
+  AlertDialogCancel,
+  AlertDialogContent,
+  AlertDialogDescription,
+  AlertDialogFooter,
+  AlertDialogHeader,
+  AlertDialogTitle,
+} from "@/components/ui/alert-dialog";
+import { Button } from "@/components/ui/button";
+import type { ReactNode } from "react";
+import { useState } from "react";
+
+type ButtonVariant = React.ComponentProps<typeof Button>["variant"];
+
+interface RunActionDialogProps {
+  triggerLabel: string;
+  triggerVariant?: ButtonVariant;
+  title: string;
+  description: ReactNode;
+  cancelLabel: string;
+  confirmLabel: string;
+  pendingLabel: string;
+  confirmVariant?: ButtonVariant;
+  fallbackErrorMessage: string;
+  action: () => Promise<unknown>;
+  onDone?: (() => Promise<void>) | (() => void);
+}
+
+function getErrorMessage(error: unknown, fallback: string): string {
+  if (error instanceof Error && error.message) {
+    return error.message;
+  }
+
+  return fallback;
+}
+
+// Confirmation dialog shared by the run action buttons (cancel, resume).
+export function RunActionDialog({
+  triggerLabel,
+  triggerVariant = "default",
+  title,
+  description,
+  cancelLabel,
+  confirmLabel,
+  pendingLabel,
+  confirmVariant,
+  fallbackErrorMessage,
+  action,
+  onDone,
+}: RunActionDialogProps) {
+  const [isOpen, setIsOpen] = useState(false);
+  const [isPending, setIsPending] = useState(false);
+  const [error, setError] = useState<string | null>(null);
+
+  async function runAction() {
+    setIsPending(true);
+    setError(null);
+
+    try {
+      await action();
+      await onDone?.();
+      setIsOpen(false);
+    } catch (caughtError) {
+      setError(getErrorMessage(caughtError, fallbackErrorMessage));
+    } finally {
+      setIsPending(false);
+    }
+  }
+
+  return (
+    <AlertDialog
+      open={isOpen}
+      onOpenChange={(nextOpen) => {
+        setIsOpen(nextOpen);
+        if (!nextOpen) {
+          setError(null);
+        }
+      }}
+    >
+      <Button
+        type="button"
+        variant={triggerVariant}
+        onClick={() => {
+          setIsOpen(true);
+        }}
+        disabled={isPending}
+      >
+        {triggerLabel}
+      </Button>
+
+      <AlertDialogContent>
+        <AlertDialogHeader>
+          <AlertDialogTitle>{title}</AlertDialogTitle>
+          <AlertDialogDescription>{description}</AlertDialogDescription>
+        </AlertDialogHeader>
+
+        {error && <p className="text-destructive text-xs">{error}</p>}
+
+        <AlertDialogFooter>
+          <AlertDialogCancel disabled={isPending}>
+            {cancelLabel}
+          </AlertDialogCancel>
+          <AlertDialogAction
+            variant={confirmVariant}
+            onClick={() => {
+              void runAction();
+            }}
+            disabled={isPending}
+          >
+            {isPending ? pendingLabel : confirmLabel}
+          </AlertDialogAction>
+        </AlertDialogFooter>
+      </AlertDialogContent>
+    </AlertDialog>
+  );
+}

apps/dashboard/src/components/run-cancel-action.tsx

@@ -1,111 +1,38 @@
-import {
-  AlertDialog,
-  AlertDialogAction,
-  AlertDialogCancel,
-  AlertDialogContent,
-  AlertDialogDescription,
-  AlertDialogFooter,
-  AlertDialogHeader,
-  AlertDialogTitle,
-} from "@/components/ui/alert-dialog";
-import { Button } from "@/components/ui/button";
+import { RunActionDialog } from "@/components/run-action-dialog";
 import { cancelWorkflowRunServerFn } from "@/lib/api";
 import { isRunCancelableStatus } from "@/lib/status";
 import type { WorkflowRunStatus } from "openworkflow/internal";
-import { useState } from "react";
 
 interface RunCancelActionProps {
   runId: string;
   status: WorkflowRunStatus;
   onCanceled?: (() => Promise<void>) | (() => void);
 }
 
-function getErrorMessage(error: unknown): string {
-  if (error instanceof Error && error.message) {
-    return error.message;
-  }
-
-  return "Unable to cancel workflow run";
-}
-
 export function RunCancelAction({
   runId,
   status,
   onCanceled,
 }: RunCancelActionProps) {
-  const [isOpen, setIsOpen] = useState(false);
-  const [isCanceling, setIsCanceling] = useState(false);
-  const [error, setError] = useState<string | null>(null);
-
   if (!isRunCancelableStatus(status)) {
     return null;
   }
 
-  async function cancelRun() {
-    setIsCanceling(true);
-    setError(null);
-
-    try {
-      await cancelWorkflowRunServerFn({
-        data: {
-          workflowRunId: runId,
-        },
-      });
-      await onCanceled?.();
-      setIsOpen(false);
-    } catch (caughtError) {
-      setError(getErrorMessage(caughtError));
-    } finally {
-      setIsCanceling(false);
-    }
-  }
-
   return (
-    <AlertDialog
-      open={isOpen}
-      onOpenChange={(nextOpen) => {
-        setIsOpen(nextOpen);
-        if (!nextOpen) {
-          setError(null);
-        }
-      }}
-    >
-      <Button
-        type="button"
-        variant="destructive"
-        onClick={() => {
-          setIsOpen(true);
-        }}
-        disabled={isCanceling}
-      >
-        Cancel Run
-      </Button>
-
-      <AlertDialogContent>
-        <AlertDialogHeader>
-          <AlertDialogTitle>Cancel this run?</AlertDialogTitle>
-          <AlertDialogDescription>
-            This will stop any future progress for this workflow run.
-          </AlertDialogDescription>
-        </AlertDialogHeader>
-
-        {error && <p className="text-destructive text-xs">{error}</p>}
-
-        <AlertDialogFooter>
-          <AlertDialogCancel disabled={isCanceling}>
-            Keep Running
-          </AlertDialogCancel>
-          <AlertDialogAction
-            variant="destructive"
-            onClick={() => {
-              void cancelRun();
-            }}
-            disabled={isCanceling}
-          >
-            {isCanceling ? "Canceling..." : "Cancel Run"}
-          </AlertDialogAction>
-        </AlertDialogFooter>
-      </AlertDialogContent>
-    </AlertDialog>
+    <RunActionDialog
+      triggerLabel="Cancel Run"
+      triggerVariant="destructive"
+      title="Cancel this run?"
+      description="This will stop any future progress for this workflow run."
+      cancelLabel="Keep Running"
+      confirmLabel="Cancel Run"
+      pendingLabel="Canceling..."
+      confirmVariant="destructive"
+      fallbackErrorMessage="Unable to cancel workflow run"
+      action={() =>
+        cancelWorkflowRunServerFn({ data: { workflowRunId: runId } })
+      }
+      onDone={onCanceled}
+    />
   );
 }

apps/dashboard/src/components/run-resume-action.tsx

@@ -0,0 +1,37 @@
+import { RunActionDialog } from "@/components/run-action-dialog";
+import { resumeWorkflowRunServerFn } from "@/lib/api";
+import { isRunResumableStatus } from "@/lib/status";
+import type { WorkflowRunStatus } from "openworkflow/internal";
+
+interface RunResumeActionProps {
+  runId: string;
+  status: WorkflowRunStatus;
+  onResumed?: (() => Promise<void>) | (() => void);
+}
+
+export function RunResumeAction({
+  runId,
+  status,
+  onResumed,
+}: RunResumeActionProps) {
+  if (!isRunResumableStatus(status)) {
+    return null;
+  }
+
+  return (
+    <RunActionDialog
+      triggerLabel="Resume Run"
+      triggerVariant="default"
+      title="Resume this failed run?"
+      description="Completed steps stay cached and won't re-run. The failing step will be retried with a fresh retry budget. Previous failed attempts will be discarded."
+      cancelLabel="Cancel"
+      confirmLabel="Resume Run"
+      pendingLabel="Resuming..."
+      fallbackErrorMessage="Unable to resume workflow run"
+      action={() =>
+        resumeWorkflowRunServerFn({ data: { workflowRunId: runId } })
+      }
+      onDone={onResumed}
+    />
+  );
+}

apps/dashboard/src/lib/api.ts

@@ -90,6 +90,18 @@ export const cancelWorkflowRunServerFn = createServerFn({ method: "POST" })
     return backend.cancelWorkflowRun({ workflowRunId: data.workflowRunId });
   });
 
+/**
+ * Resume a failed workflow run by ID. Flips the run back to `pending` and
+ * drops failed step attempts so the failing step starts with a fresh retry
+ * budget; completed steps stay cached.
+ */
+export const resumeWorkflowRunServerFn = createServerFn({ method: "POST" })
+  .validator(z.object({ workflowRunId: z.string() }))
+  .handler(async ({ data }): Promise<WorkflowRun> => {
+    const backend = await getBackend();
+    return backend.resumeWorkflowRun({ workflowRunId: data.workflowRunId });
+  });
+
 /**
  * List step attempts for a workflow run.
  */

apps/dashboard/src/lib/status.ts

@@ -169,6 +169,11 @@ const CANCELABLE_RUN_STATUSES: ReadonlySet<WorkflowRunStatus> = new Set([
   "sleeping",
 ]);
 
+/** Run statuses that can be resumed from the dashboard. */
+const RESUMABLE_RUN_STATUSES: ReadonlySet<WorkflowRunStatus> = new Set([
+  "failed",
+]);
+
 const fallbackStatusConfig = STATUS_CONFIG.pending;
 
 export function getRunStatusConfig(status: string): StatusConfig {
@@ -198,3 +203,7 @@ export function getStatusStatIconClass(status: string): string {
 export function isRunCancelableStatus(status: string): boolean {
   return CANCELABLE_RUN_STATUSES.has(status as WorkflowRunStatus);
 }
+
+export function isRunResumableStatus(status: string): boolean {
+  return RESUMABLE_RUN_STATUSES.has(status as WorkflowRunStatus);
+}

apps/dashboard/src/routes/runs/$runId.tsx

@@ -1,6 +1,7 @@
 import { AppLayout } from "@/components/app-layout";
 import { CursorPaginationControls } from "@/components/cursor-pagination-controls";
 import { RunCancelAction } from "@/components/run-cancel-action";
+import { RunResumeAction } from "@/components/run-resume-action";
 import { Badge } from "@/components/ui/badge";
 import { Button } from "@/components/ui/button";
 import { Card } from "@/components/ui/card";
@@ -292,7 +293,14 @@ function RunDetailsPage() {
               />
             )}
           </div>
-          <div className="sm:shrink-0">
+          <div className="flex gap-2 sm:shrink-0">
+            <RunResumeAction
+              runId={run.id}
+              status={run.status}
+              onResumed={async () => {
+                await router.invalidate();
+              }}
+            />
             <RunCancelAction
               runId={run.id}
               status={run.status}

packages/openworkflow/client/client.ts

@@ -175,6 +175,23 @@ export class OpenWorkflow {
     await this.backend.cancelWorkflowRun({ workflowRunId });
   }
 
+  /**
+   * Resume a failed workflow run. The run's status flips back to `pending`
+   * so the next worker tick picks it up. Already-completed steps are served
+   * from history without re-executing; failed step attempts are discarded so
+   * the failing step starts with a fresh retry budget.
+   * @param workflowRunId - The ID of the failed workflow run to resume
+   * @returns The updated workflow run
+   * @throws {Error} If the run does not exist or is not in `failed` status
+   * @example
+   * ```ts
+   * await ow.resumeWorkflowRun("123");
+   * ```
+   */
+  async resumeWorkflowRun(workflowRunId: string): Promise<WorkflowRun> {
+    return await this.backend.resumeWorkflowRun({ workflowRunId });
+  }
+
   /**
    * Send a signal to all workflows currently waiting on the given signal
    * string. If no workflow is waiting, the signal is silently dropped.

packages/openworkflow/core/backend.ts

@@ -47,6 +47,9 @@ export interface Backend {
   cancelWorkflowRun(
     params: Readonly<CancelWorkflowRunParams>,
   ): Promise<WorkflowRun>;
+  resumeWorkflowRun(
+    params: Readonly<ResumeWorkflowRunParams>,
+  ): Promise<WorkflowRun>;
 
   // Step Attempts
   createStepAttempt(
@@ -143,6 +146,10 @@ export interface CancelWorkflowRunParams {
   workflowRunId: string;
 }
 
+export interface ResumeWorkflowRunParams {
+  workflowRunId: string;
+}
+
 export interface CreateStepAttemptParams {
   workflowRunId: string;
   workerId: string;