Refresh project skills in the / menu after the checkout's branch changes (#5415)

Draft slash commands are cached per provider and checkout with no expiry, so a skill from the previous branch stayed listed (or a new branch's skill stayed hidden) until the app restarted. A pushed checkout status that reports a different branch now drops that checkout's cached draft commands, and the next / menu fetches them again.

Co-authored-by: paseo-bot[bot] <266920839+paseo-bot[bot]@users.noreply.github.com>

packages/app/src/git/checkout-status-cache.test.ts

@@ -16,6 +16,7 @@ import {
   resolveWorkingDiffComparison,
   selectWorkingDiffComparison,
 } from "@/git/working-diff-comparison";
+import { draftAgentCommandsQueryKey } from "@/hooks/agent-commands-query";
 import {
   applyCheckoutStatusUpdateFromEvent,
   ensureCheckoutStatus,
@@ -197,6 +198,51 @@ describe("applyCheckoutStatusUpdateFromEvent", () => {
     ).toBe(false);
   });
 
+  it("drops the checkout's cached draft slash commands when its branch changes", () => {
+    const queryClient = createQueryClient();
+    queryClient.setQueryData(
+      checkoutStatusQueryKey(serverId, cwd),
+      checkoutStatus({ currentBranch: "chore/build-paseo" }),
+    );
+    const thisCheckout = draftAgentCommandsQueryKey({
+      serverId,
+      draftConfig: { provider: "claude", cwd, model: "haiku" },
+    });
+    const otherCheckout = draftAgentCommandsQueryKey({
+      serverId,
+      draftConfig: { provider: "claude", cwd: "/repo2", model: "haiku" },
+    });
+    queryClient.setQueryData(thisCheckout, [{ name: "build-paseo" }]);
+    queryClient.setQueryData(otherCheckout, [{ name: "build-paseo" }]);
+
+    applyCheckoutStatusUpdateFromEvent({
+      queryClient,
+      serverId,
+      message: checkoutStatusUpdate(checkoutStatus({ currentBranch: "main" })),
+    });
+
+    expect(queryClient.getQueryData(thisCheckout)).toBeUndefined();
+    expect(queryClient.getQueryData(otherCheckout)).toEqual([{ name: "build-paseo" }]);
+  });
+
+  it("keeps the checkout's draft slash commands when a push leaves its branch unchanged", () => {
+    const queryClient = createQueryClient();
+    queryClient.setQueryData(checkoutStatusQueryKey(serverId, cwd), checkoutStatus());
+    const thisCheckout = draftAgentCommandsQueryKey({
+      serverId,
+      draftConfig: { provider: "claude", cwd, model: "haiku" },
+    });
+    queryClient.setQueryData(thisCheckout, [{ name: "build-paseo" }]);
+
+    applyCheckoutStatusUpdateFromEvent({
+      queryClient,
+      serverId,
+      message: checkoutStatusUpdate(checkoutStatus({ isDirty: true })),
+    });
+
+    expect(queryClient.getQueryData(thisCheckout)).toEqual([{ name: "build-paseo" }]);
+  });
+
   it("writes the PR status cache when prStatus is present, and skips it otherwise", () => {
     const queryClient = createQueryClient();
     const pushedPr = prStatus({ requestId: "pr-1" });

packages/app/src/git/checkout-status-cache.ts

@@ -8,6 +8,7 @@ import {
   invalidatePrPaneTimelineForCheckout,
 } from "@/git/query-keys";
 import { type CheckoutPrStatusPayload, normalizeCheckoutPrStatusPayload } from "@/git/pr-status";
+import { resetDraftAgentCommandsForCheckout } from "@/hooks/agent-commands-query";
 import { expireWorkingDiffComparisons } from "@/git/working-diff-comparison";
 
 export type CheckoutStatusPayload = CheckoutStatusResponse["payload"];
@@ -67,7 +68,13 @@ export function applyCheckoutStatusUpdateFromEvent({
     ? normalizeCheckoutPrStatusPayload(payload.prStatus)
     : undefined;
   const cachePayload = prStatus ? { ...payload, prStatus } : payload;
+  const previousStatus = queryClient.getQueryData<CheckoutStatusPayload>(
+    checkoutStatusQueryKey(serverId, payload.cwd),
+  );
   queryClient.setQueryData(checkoutStatusQueryKey(serverId, payload.cwd), cachePayload);
+  if (previousStatus?.currentBranch !== payload.currentBranch) {
+    void resetDraftAgentCommandsForCheckout(queryClient, { serverId, cwd: payload.cwd });
+  }
   void queryClient.invalidateQueries({
     queryKey: checkoutCommitsQueryKey(serverId, payload.cwd),
   });