diff --git a/frontend/angular/src/app/features/host/host-shell.component.spec.ts b/frontend/angular/src/app/features/host/host-shell.component.spec.ts
index a3380e7..6151161 100644
--- a/frontend/angular/src/app/features/host/host-shell.component.spec.ts
+++ b/frontend/angular/src/app/features/host/host-shell.component.spec.ts
@@ -71,4 +71,50 @@ describe('HostShellComponent gameplay wiring', () => {
     expect(component.scoreboardError).toContain('Scoreboard failed: Scoreboard unavailable');
     expect(component.loading).toBe(false);
   });
+
+  it('wires showQuestion, mixAnswers and calculateScores with expected request payloads', async () => {
+    const sessionAfterAction = {
+      session: { code: 'ABCD12', status: 'guess', current_round: 1 },
+      round_question: { id: 77, prompt: 'Q?', answers: [] },
+      players: [],
+    };
+
+    const fetchMock: FetchMock = vi
+      .fn()
+      .mockResolvedValueOnce(jsonResponse(200, { ok: true }))
+      .mockResolvedValueOnce(jsonResponse(200, sessionAfterAction))
+      .mockResolvedValueOnce(jsonResponse(200, { ok: true }))
+      .mockResolvedValueOnce(jsonResponse(200, sessionAfterAction))
+      .mockResolvedValueOnce(jsonResponse(200, { ok: true }))
+      .mockResolvedValueOnce(jsonResponse(200, sessionAfterAction));
+
+    vi.stubGlobal('fetch', fetchMock);
+
+    const component = new HostShellComponent();
+    component.sessionCode = ' abcd12 ';
+    component.roundQuestionId = ' 77 ';
+
+    await component.showQuestion();
+    await component.mixAnswers();
+    await component.calculateScores();
+
+    expect(fetchMock).toHaveBeenNthCalledWith(
+      1,
+      '/lobby/sessions/ABCD12/questions/show',
+      expect.objectContaining({ method: 'POST', body: JSON.stringify({}) })
+    );
+    expect(fetchMock).toHaveBeenNthCalledWith(
+      3,
+      '/lobby/sessions/ABCD12/questions/77/answers/mix',
+      expect.objectContaining({ method: 'POST', body: JSON.stringify({}) })
+    );
+    expect(fetchMock).toHaveBeenNthCalledWith(
+      5,
+      '/lobby/sessions/ABCD12/questions/77/scores/calculate',
+      expect.objectContaining({ method: 'POST', body: JSON.stringify({}) })
+    );
+
+    expect(component.error).toBe('');
+    expect(component.loading).toBe(false);
+  });
 });
diff --git a/frontend/angular/src/app/features/player/player-shell.component.spec.ts b/frontend/angular/src/app/features/player/player-shell.component.spec.ts
index 30ebc91..6a0862b 100644
--- a/frontend/angular/src/app/features/player/player-shell.component.spec.ts
+++ b/frontend/angular/src/app/features/player/player-shell.component.spec.ts
@@ -66,6 +66,14 @@ describe('PlayerShellComponent gameplay wiring', () => {
 
     await component.submitLie();
 
+    expect(fetchMock).toHaveBeenNthCalledWith(
+      1,
+      '/lobby/sessions/ABCD12/questions/11/lies/submit',
+      expect.objectContaining({
+        method: 'POST',
+        body: JSON.stringify({ player_id: 9, session_token: 'token-1', text: 'my lie' }),
+      })
+    );
     expect(component.submitError?.kind).toBe('lie');
     expect(component.submitError?.message).toContain('Lie submit failed: Temporary submit outage');
 
@@ -75,4 +83,49 @@ describe('PlayerShellComponent gameplay wiring', () => {
     expect(component.session?.session.status).toBe('guess');
     expect(fetchMock).toHaveBeenCalledTimes(3);
   });
+
+  it('surfaces guess submit error and retries with selected answer payload', async () => {
+    const fetchMock: FetchMock = vi
+      .fn()
+      .mockResolvedValueOnce(jsonResponse(503, { error: 'Guess queue busy' }))
+      .mockResolvedValueOnce(jsonResponse(200, { ok: true }))
+      .mockResolvedValueOnce(
+        jsonResponse(200, {
+          session: { code: 'ABCD12', status: 'reveal', current_round: 1 },
+          round_question: { id: 11, prompt: 'Q?', answers: [{ text: 'A' }, { text: 'B' }] },
+        })
+      );
+
+    vi.stubGlobal('fetch', fetchMock);
+
+    const component = new PlayerShellComponent();
+    component.sessionCode = ' abcd12 ';
+    component.playerId = 9;
+    component.sessionToken = 'token-1';
+    component.selectedGuess = 'B';
+    component.session = {
+      session: { code: 'ABCD12', status: 'guess', current_round: 1 },
+      round_question: { id: 11, prompt: 'Q?', answers: [{ text: 'A' }, { text: 'B' }] },
+    };
+
+    await component.submitGuess();
+
+    expect(fetchMock).toHaveBeenNthCalledWith(
+      1,
+      '/lobby/sessions/ABCD12/questions/11/guesses/submit',
+      expect.objectContaining({
+        method: 'POST',
+        body: JSON.stringify({ player_id: 9, session_token: 'token-1', selected_text: 'B' }),
+      })
+    );
+    expect(component.submitError?.kind).toBe('guess');
+    expect(component.submitError?.message).toContain('Guess submit failed: Guess queue busy');
+
+    await component.submitGuess();
+
+    expect(component.submitError).toBeNull();
+    expect(component.session?.session.status).toBe('reveal');
+    expect(component.selectedGuess).toBe('');
+    expect(fetchMock).toHaveBeenCalledTimes(3);
+  });
 });