fix: pre-landing review fixes

Co-authored-by: capy-ai[bot] <230910855+capy-ai[bot]@users.noreply.github.com>

hosts/claude/hooks/auq-error-fallback-hook.ts

@@ -153,7 +153,7 @@ export function directiveFor(kind: SessionKind): string {
         'with kind "auto"; do not emit prose, do not BLOCK. A question with no recommendation, a consent, ' +
         'a destructive or irreversible option, or an approval gate is appended with kind "approval" and status ' +
         '"pending" — never chosen, never approved — and the skill ends at its next gate with ' +
-        'GSTACK_RESULT status=gate_pending (Unattended session block).'
+        'GSTACK_RESULT status=gate_pending.'
       );
     case 'headless':
       // #2733 review (multi-specialist): a spawned-marked subagent under a

test/resolver-ask-user-format.test.ts

@@ -345,3 +345,24 @@ describe('CQ2 — cross-file invariant: auto-decide prefix matches the hook', ()
     expect(hookSrc.includes(PREFIX) && out.includes(PREFIX)).toBe(true);
   });
 });
+
+// Generated by /ship Step 7 coverage audit (GSTA-91, PR #3421).
+// Value: protects=the unattended rule names a block id gstack-skill-start actually prints; fails_when=either side
+// renames the id or the old "Unattended session block" pointer returns; why_new=gstack-skill-start.test.ts pins the
+// id but nothing ties the resolver prose to it; seam=none; no_claim=model behaviour under unattended (static read of
+// the bin source; unit only)
+describe('CQ3 — cross-file invariant: the unattended pointer names a block gstack-skill-start prints', () => {
+  const startSrc = fs.readFileSync(path.resolve(__dirname, '..', 'bin', 'gstack-skill-start'), 'utf-8');
+  const emitted = new Set([...startSrc.matchAll(/_emit_block ([a-z][a-z-]*)/g)].map(m => m[1]));
+
+  for (const skillName of ['test-skill', 'plan-eng-review']) {
+    test(`${skillName}: Tool resolution item 1 cites an emitted block id; no section-style pointer remains`, () => {
+      const out = generateAskUserFormat({ ...makeCtx(), skillName });
+      expect(emitted.has('unattended-session')).toBe(true);
+      const cited = /Unattended \(per its printed `([a-z-]+)` block\)/.exec(out)?.[1];
+      expect(cited, 'item 1 must name the printed unattended block').toBe('unattended-session');
+      expect(emitted.has(cited!), `${cited} is not a block gstack-skill-start emits`).toBe(true);
+      expect(out).not.toContain('Unattended session block');
+    });
+  }
+});