diff --git a/apps/dashboard/src/lib/github-cache-policy.ts b/apps/dashboard/src/lib/github-cache-policy.ts
index 3af82a3..882616f 100644
--- a/apps/dashboard/src/lib/github-cache-policy.ts
+++ b/apps/dashboard/src/lib/github-cache-policy.ts
@@ -11,6 +11,11 @@ export const githubCachePolicy = {
 		staleTimeMs: 2 * 60 * 1000,
 		gcTimeMs: 60 * 60 * 1000,
 	},
+	/** User-scoped "My pulls/issues/reviews" aggregates — shorter TTL + faster webhook alignment */
+	mine: {
+		staleTimeMs: 30 * 1000,
+		gcTimeMs: 15 * 60 * 1000,
+	},
 	detail: {
 		staleTimeMs: 30 * 1000,
 		gcTimeMs: 10 * 60 * 1000,
diff --git a/apps/dashboard/src/lib/github.functions.ts b/apps/dashboard/src/lib/github.functions.ts
index 1251ea9..c287343 100644
--- a/apps/dashboard/src/lib/github.functions.ts
+++ b/apps/dashboard/src/lib/github.functions.ts
@@ -641,6 +641,19 @@ function toMutationError(action: string, error: unknown): MutationResult {
 	return { ok: false, error: `Failed to ${action}: Unknown error` };
 }
 
+/** When search is scoped to one repo, webhook `repoMeta` invalidates this cache; otherwise TTL only (global mine signals would misfire). */
+function revalidationSignalKeysForUserItemSearch(input: {
+	owner?: string;
+	repo?: string;
+}): string[] {
+	const owner = input.owner?.trim();
+	const repo = input.repo?.trim();
+	if (owner && repo) {
+		return [githubRevalidationSignalKeys.repoMeta({ owner, repo })];
+	}
+	return [];
+}
+
 export type PullFromRepoInput = {
 	owner: string;
 	repo: string;
@@ -4459,6 +4472,27 @@ function mergeMyIssuesResults(results: MyIssuesResult[]): MyIssuesResult {
 	};
 }
 
+/** Full refresh replaces cache so merged/closed items drop off; union only when this fetch missed sources (`partial`). */
+function mergeMyPullsCachedWithFresh(
+	existing: MyPullsResult,
+	fresh: MyPullsResult,
+): MyPullsResult {
+	if (fresh.partial) {
+		return mergeMyPullsResults([existing, fresh]);
+	}
+	return fresh;
+}
+
+function mergeMyIssuesCachedWithFresh(
+	existing: MyIssuesResult,
+	fresh: MyIssuesResult,
+): MyIssuesResult {
+	if (fresh.partial) {
+		return mergeMyIssuesResults([existing, fresh]);
+	}
+	return fresh;
+}
+
 function buildSourceSearchQuery({
 	itemType,
 	role,
@@ -4492,14 +4526,14 @@ async function getMyPullsResult({
 		userId: context.session.user.id,
 		resource: "pulls.mine.graphql.v2",
 		params: { username },
-		freshForMs: githubCachePolicy.list.staleTimeMs,
+		freshForMs: githubCachePolicy.mine.staleTimeMs,
 		signalKeys: [
 			githubRevalidationSignalKeys.pullsMine,
 			githubRevalidationSignalKeys.installationAccess,
 		],
 		namespaceKeys: [githubRevalidationSignalKeys.pullsMine],
 		cacheMode: "split",
-		merge: (existing, fresh) => mergeMyPullsResults([existing, fresh]),
+		merge: mergeMyPullsCachedWithFresh,
 		fetcher: async () => {
 			const deadlineAt = Date.now() + MY_SEARCH_TOTAL_TIMEOUT_MS;
 			const sources = await getMySearchSources(context, username, deadlineAt);
@@ -4657,6 +4691,9 @@ async function getMyPullsResult({
 			if (forbiddenOrgs.length > 0) {
 				data.forbiddenOrgs = [...new Set(forbiddenOrgs)];
 			}
+			if (results.length < sources.length) {
+				data.partial = true;
+			}
 			if (timedOut || hasRecentGitHubTimeouts()) {
 				data.timedOut = true;
 			}
@@ -4683,14 +4720,14 @@ async function getMyIssuesResult({
 		userId: context.session.user.id,
 		resource: "issues.mine.graphql.v2",
 		params: { username },
-		freshForMs: githubCachePolicy.list.staleTimeMs,
+		freshForMs: githubCachePolicy.mine.staleTimeMs,
 		signalKeys: [
 			githubRevalidationSignalKeys.issuesMine,
 			githubRevalidationSignalKeys.installationAccess,
 		],
 		namespaceKeys: [githubRevalidationSignalKeys.issuesMine],
 		cacheMode: "split",
-		merge: (existing, fresh) => mergeMyIssuesResults([existing, fresh]),
+		merge: mergeMyIssuesCachedWithFresh,
 		fetcher: async () => {
 			const deadlineAt = Date.now() + MY_SEARCH_TOTAL_TIMEOUT_MS;
 			const sources = await getMySearchSources(context, username, deadlineAt);
@@ -4823,6 +4860,9 @@ async function getMyIssuesResult({
 			if (forbiddenOrgs.length > 0) {
 				data.forbiddenOrgs = [...new Set(forbiddenOrgs)];
 			}
+			if (results.length < sources.length) {
+				data.partial = true;
+			}
 			if (timedOut || hasRecentGitHubTimeouts()) {
 				data.timedOut = true;
 			}
@@ -5257,7 +5297,10 @@ export const getPullsFromUser = createServerFn({ method: "GET" })
 				repo: data.repo,
 			},
 			freshForMs: githubCachePolicy.list.staleTimeMs,
-			signalKeys: [githubRevalidationSignalKeys.pullsMine],
+			signalKeys: revalidationSignalKeysForUserItemSearch({
+				owner: data.owner,
+				repo: data.repo,
+			}),
 			request: (headers) =>
 				context.octokit.rest.search.issuesAndPullRequests({
 					q: buildUserSearchQuery({
@@ -5302,7 +5345,12 @@ export const getPullsFromRepo = createServerFn({ method: "GET" })
 				direction: data.direction ?? "desc",
 			},
 			freshForMs: githubCachePolicy.list.staleTimeMs,
-			signalKeys: [githubRevalidationSignalKeys.pullsMine],
+			signalKeys: [
+				githubRevalidationSignalKeys.repoMeta({
+					owner: data.owner,
+					repo: data.repo,
+				}),
+			],
 			request: (headers) =>
 				context.octokit.rest.pulls.list({
 					owner: data.owner,
@@ -5415,7 +5463,10 @@ export const getIssuesFromUser = createServerFn({ method: "GET" })
 				repo: data.repo,
 			},
 			freshForMs: githubCachePolicy.list.staleTimeMs,
-			signalKeys: [githubRevalidationSignalKeys.issuesMine],
+			signalKeys: revalidationSignalKeysForUserItemSearch({
+				owner: data.owner,
+				repo: data.repo,
+			}),
 			request: (headers) =>
 				context.octokit.rest.search.issuesAndPullRequests({
 					q: buildUserSearchQuery({
@@ -5462,7 +5513,12 @@ export const getIssuesFromRepo = createServerFn({ method: "GET" })
 				direction: data.direction ?? "desc",
 			},
 			freshForMs: githubCachePolicy.list.staleTimeMs,
-			signalKeys: [githubRevalidationSignalKeys.issuesMine],
+			signalKeys: [
+				githubRevalidationSignalKeys.repoMeta({
+					owner: data.owner,
+					repo: data.repo,
+				}),
+			],
 			request: (headers) =>
 				context.octokit.rest.issues.listForRepo({
 					owner: data.owner,
diff --git a/apps/dashboard/src/lib/github.query.ts b/apps/dashboard/src/lib/github.query.ts
index e6cba7c..0500589 100644
--- a/apps/dashboard/src/lib/github.query.ts
+++ b/apps/dashboard/src/lib/github.query.ts
@@ -277,8 +277,8 @@ export function githubMyPullsQueryOptions(scope: GitHubQueryScope) {
 	return queryOptions({
 		queryKey: githubQueryKeys.pulls.mine(scope),
 		queryFn: () => getMyPulls(),
-		staleTime: githubCachePolicy.list.staleTimeMs,
-		gcTime: githubCachePolicy.list.gcTimeMs,
+		staleTime: githubCachePolicy.mine.staleTimeMs,
+		gcTime: githubCachePolicy.mine.gcTimeMs,
 		meta: persistedMeta,
 	});
 }
@@ -457,8 +457,8 @@ export function githubMyIssuesQueryOptions(scope: GitHubQueryScope) {
 	return queryOptions({
 		queryKey: githubQueryKeys.issues.mine(scope),
 		queryFn: () => getMyIssues(),
-		staleTime: githubCachePolicy.list.staleTimeMs,
-		gcTime: githubCachePolicy.list.gcTimeMs,
+		staleTime: githubCachePolicy.mine.staleTimeMs,
+		gcTime: githubCachePolicy.mine.gcTimeMs,
 		meta: persistedMeta,
 	});
 }
diff --git a/apps/dashboard/src/lib/github.types.ts b/apps/dashboard/src/lib/github.types.ts
index 0fc3d17..118af65 100644
--- a/apps/dashboard/src/lib/github.types.ts
+++ b/apps/dashboard/src/lib/github.types.ts
@@ -123,6 +123,7 @@ export type MyPullsResult = {
 	mentioned: PullSummary[];
 	involved: PullSummary[];
 	forbiddenOrgs?: string[];
+	partial?: boolean;
 	timedOut?: boolean;
 };
 
@@ -131,6 +132,7 @@ export type MyIssuesResult = {
 	authored: IssueSummary[];
 	mentioned: IssueSummary[];
 	forbiddenOrgs?: string[];
+	partial?: boolean;
 	timedOut?: boolean;
 };
 
diff --git a/apps/dashboard/src/lib/use-github-signal-stream.ts b/apps/dashboard/src/lib/use-github-signal-stream.ts
index 7732b6a..3ea189f 100644
--- a/apps/dashboard/src/lib/use-github-signal-stream.ts
+++ b/apps/dashboard/src/lib/use-github-signal-stream.ts
@@ -25,7 +25,8 @@ function isSignalMessage(data: unknown): data is SignalMessage {
 }
 
 const RECONNECT_DELAY_MS = 3_000;
-const POLL_INTERVAL_MS = 5 * 60 * 1_000;
+/** Fallback when WebSocket misses — keep "My" lists reasonably fresh */
+const POLL_INTERVAL_MS = 90 * 1_000;
 
 function getWebSocketUrl() {
 	const protocol = window.location.protocol === "https:" ? "wss:" : "ws:";
@@ -273,7 +274,7 @@ function useGitHubSignalPoll(
 			pollTimer = setTimeout(pollSignals, POLL_INTERVAL_MS);
 		}
 
-		// Seed timestamps immediately, then poll every 5 minutes
+		// Seed timestamps immediately, then poll on POLL_INTERVAL_MS
 		void pollSignals();
 
 		return () => {