Q151: deleting a task first shows what goes with it, then waits for the result

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

src/shared/desktop-api.ts

@@ -1,3 +1,4 @@
+import type { TaskDeleteImpact } from "./domain";
 import type { SpaceHistoryPage, ThreadHistory } from "./chat-domain";
 import type { RunRequestRecord } from "./provider-runtime-domain";
 import type { ApprovalDrift } from "./approval-pin";
@@ -202,6 +203,8 @@ export interface DesktopApi {
   /** The page of a conversation before a loaded message, for history older than the snapshot holds. */
   /** Blocks a task with a reason, or unblocks it with null. */
   setTaskBlocked(input: SetTaskBlockedInput): Promise<DesktopResult<AppSnapshot>>;
+  /** What deleting a task would remove, keep and close. */
+  taskDeleteImpact(input: { orgId: string; taskId: string }): Promise<DesktopResult<TaskDeleteImpact>>;
   chatSpaceHistory(input: { orgId: string; spaceId: string; beforeMessageId: string | null } & ({ limit: number } | { fromMessageId: string })): Promise<DesktopResult<SpaceHistoryPage>>;
   revokeConnector(input: RevokeConnectorInput): Promise<DesktopResult<AppSnapshot>>;
   search(input: SearchInput): Promise<DesktopResult<SearchResultRecord[]>>;

src/shared/domain.ts

@@ -89,6 +89,22 @@ export type TaskHold =
   | { reason: string; waitingOn: "provider"; resumesAt: string }
   | { reason: string; waitingOn: "operator"; resumesAt: string | null };
 
+/** What deleting a task removes, keeps and closes, and whether a running session stops it. */
+export interface TaskDeleteImpact {
+  /** Sessions removed with the task, with their action journals. */
+  runs: number;
+  /** Sessions still running; the delete is refused while any is. */
+  running: number;
+  /** Subtasks kept, moved to the top level. */
+  subtasks: number;
+  /** Documents kept, no longer linked to the task. */
+  documents: number;
+  /** Open reviews of the task, closed by the delete. */
+  openReviews: number;
+  /** Approvals requested for the task that stay pending. */
+  pendingApprovals: number;
+}
+
 export interface TaskRecord {
   id: string;
   orgId: string;

src/shared/ipc.ts

@@ -84,6 +84,7 @@ export const IPC_CHANNELS = {
   chatThreadHistory: "agentcompany:chat-thread-history",
   chatSpaceHistory: "agentcompany:chat-space-history",
   setTaskBlocked: "agentcompany:set-task-blocked",
+  taskDeleteImpact: "agentcompany:task-delete-impact",
   revokeConnector: "agentcompany:revoke-connector",
   search: "agentcompany:search",
   rendererEvent: "agentcompany:renderer-event",