diff --git a/components/bounty-detail/bounty-detail-client.tsx b/components/bounty-detail/bounty-detail-client.tsx
index 6d6ed5c..816e5f2 100644
--- a/components/bounty-detail/bounty-detail-client.tsx
+++ b/components/bounty-detail/bounty-detail-client.tsx
@@ -13,7 +13,6 @@ import { BountyDetailSkeleton } from "@/components/ui/loading";
 import { useBountyDetail } from "@/hooks/use-bounty-detail";
 import { FcfsApprovalPanel } from "@/components/bounty/fcfs-approval-panel";
 import { CompetitionJudging } from "@/components/bounty/competition-judging";
-import type { CompetitionSubmissionEntry } from "@/components/bounty/competition-judging";
 import { EscrowDetailPanel } from "../bounty/escrow-detail-panel";
 import { RefundStatusTracker } from "../bounty/refund-status";
 import { FeeCalculator } from "../bounty/fee-calculator";
@@ -72,10 +71,7 @@ function getFullMilestoneData(bounty: BountyData): {
 // Backend does not currently provide applications in the response.
 // Fall back to empty array until the schema supports it.
 const getApplications = (bounty: BountyData): Application[] => {
-  return (
-    (bounty as BountyData & { applications?: Application[] })?.applications ??
-    []
-  );
+  return bounty?.applications ?? [];
 };
 
 export function BountyDetailClient({ bountyId }: { bountyId: string }) {
@@ -156,17 +152,14 @@ export function BountyDetailClient({ bountyId }: { bountyId: string }) {
   // Identify if the current user is the assigned contributor
   // using a fallback check on submissions or assumed backend field.
   const isAssignedApplicant =
-    (bounty as BountyData & { assignedContributorId?: string })
-      ?.assignedContributorId === session?.user?.id ||
+    bounty.assignedContributorId === session?.user?.id ||
     bounty.submissions?.some((s) => s.submittedBy === session?.user?.id) ||
     (!isCreator && bounty.status === "IN_PROGRESS");
 
   // submissions is present on BountyQuery (single-bounty query) but not on
-  // BountyFieldsFragment (list query). The cast is safe here because
-  // useBountyDetail returns BountyFieldsFragment & Partial<BountyQuery["bounty"]>.
-  const competitionSubmissions =
-    (bounty as { submissions?: CompetitionSubmissionEntry[] | null })
-      .submissions ?? [];
+  // BountyFieldsFragment (list query). Accessed via the Partial<Bounty>
+  // intersection in useBountyDetail's return type.
+  const competitionSubmissions = bounty.submissions ?? [];
 
   return (
     <div className="flex flex-col lg:flex-row gap-10">
diff --git a/hooks/use-competition-join-state.ts b/hooks/use-competition-join-state.ts
index 1dde47b..f3c5ee2 100644
--- a/hooks/use-competition-join-state.ts
+++ b/hooks/use-competition-join-state.ts
@@ -9,6 +9,7 @@ import {
 } from "@/hooks/use-competition-bounty";
 import { useDeadlinePassed } from "@/hooks/use-deadline-passed";
 import type { BountyFieldsFragment } from "@/lib/graphql/generated";
+import type { Bounty } from "@/types/bounty";
 
 interface CompetitionJoinState {
   walletAddress: string | null;
@@ -19,7 +20,7 @@ interface CompetitionJoinState {
 }
 
 export function useCompetitionJoinState(
-  bounty: BountyFieldsFragment,
+  bounty: BountyFieldsFragment & Partial<Bounty>,
 ): CompetitionJoinState {
   const { data: session } = authClient.useSession();
   const joinMutation = useJoinCompetition();
@@ -38,9 +39,7 @@ export function useCompetitionJoinState(
   // Derive from server payload (submissions list on BountyQuery) + local optimism.
   // BountyFieldsFragment (list queries) doesn't include submissions, so falls
   // back to false until the detail query resolves.
-  const bountySubmissions = (
-    bounty as { submissions?: Array<{ submittedBy: string }> | null }
-  ).submissions;
+  const bountySubmissions = bounty.submissions;
   const serverHasJoined =
     walletAddress != null &&
     (bountySubmissions?.some((s) => s.submittedBy === walletAddress) ?? false);
diff --git a/types/bounty.ts b/types/bounty.ts
index c0c8580..2eda170 100644
--- a/types/bounty.ts
+++ b/types/bounty.ts
@@ -83,6 +83,24 @@ export interface ContributorProgress {
   currentMilestoneId: string;
 }
 
+export interface BountyApplication {
+  id: string;
+  applicantAddress: string;
+  applicantName?: string;
+  proposal: {
+    approach: string;
+    estimatedTimeline: string;
+    relevantExperience: string;
+    portfolioUrl?: string;
+  };
+  reputation: {
+    score: number;
+    tier: string;
+    completionStats: string;
+  };
+  createdAt: string;
+}
+
 export interface Bounty {
   id: string;
   title: string;
@@ -105,14 +123,19 @@ export interface Bounty {
   bountyWindow?: BountyWindowType | null;
 
   submissions?: BountySubmission[] | null;
+  applications?: BountyApplication[] | null;
   _count?: BountyCount | null;
 
   milestones?: Milestone[] | null;
   contributorProgress?: ContributorProgress[] | null;
 
+  claimCount?: number | null;
+  maxParticipants?: number | null;
   maxSlots?: number | null;
   totalSlotsOccupied?: number | null;
 
+  assignedContributorId?: string | null;
+
   createdBy: string;
   createdAt: string;
   updatedAt: string;