diff --git a/lib/capy-review-pass.js b/lib/capy-review-pass.js
index aba3ee5de..cf7add115 100644
--- a/lib/capy-review-pass.js
+++ b/lib/capy-review-pass.js
@@ -74,8 +74,30 @@ const briefText = async (r) => {
 };
 const roleArgs = (r) => ' --role ' + q(r.role) + (r.name ? ' --name ' + q(r.name) : '');
 const REASONING = { medium: 'medium', light: 'low' };
+const family = (id) => (typeof id === 'string' && id.includes('/') ? id.slice(0, id.indexOf('/')) : '');
+const CERTIFIED_OUTSIDE = { model_id: 'openai/gpt-6.1-sol', reasoning_mode: 'medium' };
+const laneFamily = family(input.laneModel);
 const modelOf = (r) => r.model || (input.models || {})[r.role === 'specialist-batched' ? 'specialist' : r.role]
+  || (r.role === 'outside-voice' && laneFamily === 'anthropic' ? CERTIFIED_OUTSIDE : undefined)
   || (REASONING[r.effort] && input.laneModel ? { model_id: input.laneModel, reasoning_mode: REASONING[r.effort] } : undefined);
+const outsideNote = (r) => {
+  const ov = modelOf(r);
+  const certified = laneFamily === 'anthropic' && ov.model_id === CERTIFIED_OUTSIDE.model_id && ov.reasoning_mode === CERTIFIED_OUTSIDE.reasoning_mode;
+  return 'OUTSIDE_VOICE: ' + ov.model_id + ' reasoning=' + (ov.reasoning_mode || 'default') + ((input.models || {})['outside-voice'] ? ' given' : ' default for an anthropic lane')
+    + (certified ? ' (certified configuration)' : '; outside the certified configuration (' + CERTIFIED_OUTSIDE.model_id + ' at ' + CERTIFIED_OUTSIDE.reasoning_mode + ' beside an anthropic lane)');
+};
+const familyStop = (readers) => {
+  const ov = readers.find((x) => x.role === 'outside-voice' && !['created', 'collected', 'failed'].includes(x.state));
+  if (!ov) return null;
+  const om = modelOf(ov);
+  if (!om) return "the outside voice needs input.models['outside-voice'] (a model of another family); none was given";
+  const native = readers.find((x) => x.role === 'adversarial-native');
+  const nativeFamily = family(native && modelOf(native) ? modelOf(native).model_id : undefined);
+  if (!laneFamily && !nativeFamily) return 'the outside voice ' + om.model_id + ' cannot be checked against another family: neither input.laneModel nor a native voice model was given';
+  const f = family(om.model_id);
+  if (f !== laneFamily && f !== nativeFamily) return null;
+  return 'the outside voice ' + om.model_id + ' is the ' + f + ' family, the same as the ' + (f === nativeFamily ? 'native voice' : 'lane model') + "; Step 11 needs input.models['outside-voice'] from another family";
+};
 const safe = (s) => s.replace(/[^a-zA-Z0-9._-]/g, '_');
 const active = input.stage === 'voices' ? ['voices'] : ['first', 'specialists', 'red-team'];
 
@@ -93,6 +115,8 @@ try {
     lines.push('REVIEW_LOG_START: ' + s + ' token=' + token);
   }
   for (;;) {
+    const sameFamily = input.stage === 'voices' && familyStop(m.readers);
+    if (sameFamily) return stop(sameFamily);
     const failed = m.readers.find((x) => active.includes(x.stage) && x.state === 'failed');
     if (failed) return stop(failed.reader + ' (subagent ' + failed.path + ') ' + (failed.error || 'failed') + '; its review is incomplete, so the pass cannot certify coverage; restore it with a fresh pass under a new --pass and --out');
     const list = await tools.subagent.list({});
@@ -145,7 +169,6 @@ try {
       lines.push(...s.out.trim().split('\n'));
       m = await load();
     }
-    if (m.readers.some((x) => x.stage === stage && x.role === 'outside-voice' && x.state === 'rendered' && !modelOf(x))) return stop("the outside voice needs input.models['outside-voice'] (a model of another family); none was given");
     const unmapped = m.readers.find((x) => x.stage === stage && x.state === 'rendered' && REASONING[x.effort] && !modelOf(x));
     if (unmapped) return stop(unmapped.reader + ' runs at effort=' + unmapped.effort + ', which needs input.laneModel (your model id) or input.models; none was given');
     for (const r of m.readers.filter((x) => x.stage === stage && x.state === 'rendered')) {
@@ -162,6 +185,7 @@ try {
         const b = await reading();
         if (b) { await sh(bin + ' mark --manifest ' + q(mf) + ' --before ' + b.tokens + ',' + b.credits); m.before = b; }
       }
+      if (r.role === 'outside-voice') lines.push(outsideNote(r));
       await mark(r.reader, 'intent', {});
       const res = await tools.subagent.create({ tasks: [{ title: r.title, prompt: text }], start: { machine: 'shared', ...(model ? { model } : {}) } });
       const idx = String(res.tasks[0].index);
diff --git a/ship/DRIVER.md b/ship/DRIVER.md
index bea60744f..2b1bb361b 100644
--- a/ship/DRIVER.md
+++ b/ship/DRIVER.md
@@ -25,11 +25,11 @@ version, CHANGELOG, commits), **Documentation** (Step 14.5) and **Next steps** (
 outside-voice and documentation brief, its severity and confidence rules and its gates come from its
 section verbatim, with only its placeholders filled; this file
 never shortens a reviewer's brief. A blocking reader's prompt is its `gstack-review-dispatch render`
-file, unchanged; its findings reach `merged.jsonl` only via `collect`; `judge` refuses a drop or downgrade. Audit readers (Steps 7, 8, 9.2.1, 14.5) cannot block, so each runs on a
-small model at low effort; their findings go to the PR body.
+file, unchanged; its findings reach `merged.jsonl` only via `collect`; `judge` refuses a drop or downgrade. Audit readers (Steps 7, 8, 9.2.1, 14.5) cannot block, so each runs at low effort on a small model,
+Step 14.5 once on Sonnet 5.5; findings go to the PR body.
 
 **Calls.** One pass with no fixes is 9 calls: Phases 1-8 and the report; at most 12 with a STOP's
-section read or a fix-check, plus a keep-alive per 200 s waited. A fix repeats Phases 3-4.
+section read or a fix-check, plus a keep-alive per 200 s waited.
 
 **Budget: observe.** `gstack-ship-budget start --mode observe` records, never admits: each program ends
 with `gstack-ship-budget note --step <last step> --reading R --credits C --record <rec>`, R and C read in that program
diff --git a/ship/DRIVER.md.tmpl b/ship/DRIVER.md.tmpl
index 2751871bf..a7c675c27 100644
--- a/ship/DRIVER.md.tmpl
+++ b/ship/DRIVER.md.tmpl
@@ -23,11 +23,11 @@ version, CHANGELOG, commits), **Documentation** (Step 14.5) and **Next steps** (
 outside-voice and documentation brief, its severity and confidence rules and its gates come from its
 section verbatim, with only its placeholders filled; this file
 never shortens a reviewer's brief. A blocking reader's prompt is its `gstack-review-dispatch render`
-file, unchanged; its findings reach `merged.jsonl` only via `collect`; `judge` refuses a drop or downgrade. Audit readers (Steps 7, 8, 9.2.1, 14.5) cannot block, so each runs on a
-small model at low effort; their findings go to the PR body.
+file, unchanged; its findings reach `merged.jsonl` only via `collect`; `judge` refuses a drop or downgrade. Audit readers (Steps 7, 8, 9.2.1, 14.5) cannot block, so each runs at low effort on a small model,
+Step 14.5 once on Sonnet 5.5; findings go to the PR body.
 
 **Calls.** One pass with no fixes is 9 calls: Phases 1-8 and the report; at most 12 with a STOP's
-section read or a fix-check, plus a keep-alive per 200 s waited. A fix repeats Phases 3-4.
+section read or a fix-check, plus a keep-alive per 200 s waited.
 
 **Budget: observe.** `gstack-ship-budget start --mode observe` records, never admits: each program ends
 with `gstack-ship-budget note --step <last step> --reading R --credits C --record <rec>`, R and C read in that program
diff --git a/test/review-pass.test.ts b/test/review-pass.test.ts
index 9bfc99c89..f320ff1b3 100644
--- a/test/review-pass.test.ts
+++ b/test/review-pass.test.ts
@@ -303,7 +303,7 @@ describe('Capy pass program (fake host, real bins)', () => {
     const h = host(dir, env);
     const base = { base: 'main', out, pass: 'x7p1', planFlags: ['--depth-floor', 'full'] };
     expect(await runPass(h, base)).toContain('NEXT: judge (Phase 4)');
-    expect(await runPass(h, { ...base, stage: 'voices' })).toContain("STOP: the outside voice needs input.models['outside-voice']");
+    expect(await runPass(h, { ...base, stage: 'voices', laneModel: undefined })).toContain("STOP: the outside voice needs input.models['outside-voice']");
     expect(h.creates.some(c => c.title.startsWith('ship x7p1 ') && /adversarial|outside/.test(c.title))).toBe(false);
     const models = { 'outside-voice': { model_id: 'openai/gpt-6.1-sol' }, 'adversarial-native': { model_id: 'anthropic/claude-opus-5-5', reasoning_mode: 'high' } };
     expect(await runPass(h, { ...base, stage: 'voices', models })).toContain('NEXT: judge the voices');
@@ -311,6 +311,99 @@ describe('Capy pass program (fake host, real bins)', () => {
     expect(h.creates.find(c => c.title === 'ship x7p1 adversarial-native')!.model).toEqual(models['adversarial-native']);
   }, 240_000);
 
+  // Value: protects=Step 11's outside voice is never the native voice's or the lane's model family; fails_when=the STOP checks only that some model was given (lib/capy-review-pass.js before GSTA-167 PR B), so a Claude outside voice beside a Claude native voice runs as "outside";
+  //   why_new=GSTA-167 plan R2 (autoplan-20261031135232); seam=none; no_claim=which family pairs find more
+  test('a same-family explicit outside voice STOPs before either voice is created', async () => {
+    const { dir, env } = repo();
+    const h = host(dir, env);
+    const base = { base: 'main', out: path.join(dir, '.state/run/p1'), pass: 'x14p1', planFlags: ['--depth-floor', 'full'] };
+    expect(await runPass(h, base)).toContain('NEXT: judge (Phase 4)');
+    expect(await runPass(h, { ...base, stage: 'voices', models: { 'outside-voice': { model_id: 'anthropic/claude-sonnet-5-5', reasoning_mode: 'medium' } } }))
+      .toContain("STOP: the outside voice anthropic/claude-sonnet-5-5 is the anthropic family, the same as the lane model; Step 11 needs input.models['outside-voice'] from another family");
+    expect(await runPass(h, { ...base, stage: 'voices', models: { 'outside-voice': { model_id: 'openai/gpt-6.1-sol', reasoning_mode: 'medium' }, 'adversarial-native': { model_id: 'openai/gpt-6-astra', reasoning_mode: 'high' } } }))
+      .toContain('STOP: the outside voice openai/gpt-6.1-sol is the openai family, the same as the native voice');
+    expect(h.creates.some(c => /^ship x14p1 (adversarial-native|outside-voice)$/.test(c.title))).toBe(false);
+  }, 240_000);
+
+  // Value: protects=a Step 11 rerun on one manifest keeps refusing a same-family outside voice, including one queued at the subagent cap that tools.subagent.start would pick up; fails_when=the family check runs only on the first render, so a resumed or queued voice starts unchecked;
+  //   why_new=GSTA-167 plan R2; seam=none; no_claim=the host's cap timing
+  test('a Step 11 rerun on one manifest still refuses a same-family outside voice, rendered or queued', async () => {
+    const same = { 'outside-voice': { model_id: 'anthropic/claude-sonnet-5-5', reasoning_mode: 'medium' } };
+    const refused = /STOP: the outside voice anthropic\/claude-sonnet-5-5 is the anthropic family/;
+    const { dir, env } = repo();
+    const h = host(dir, env);
+    const base = { base: 'main', out: path.join(dir, '.state/run/p1'), pass: 'x15p1', planFlags: ['--depth-floor', 'full'] };
+    expect(await runPass(h, base)).toContain('NEXT: judge (Phase 4)');
+    expect(await runPass(h, { ...base, stage: 'voices', models: same })).toMatch(refused);
+    expect(await runPass(h, { ...base, stage: 'voices', models: same })).toMatch(refused);
+    expect(h.creates.some(c => /^ship x15p1 (adversarial-native|outside-voice)$/.test(c.title))).toBe(false);
+
+    const b = repo();
+    const h2 = host(b.dir, b.env, { reject: t => t.endsWith('outside-voice') });
+    const base2 = { ...base, out: path.join(b.dir, '.state/run/p1'), pass: 'x18p1' };
+    expect(await runPass(h2, base2)).toContain('NEXT: judge (Phase 4)');
+    expect(await runPass(h2, { ...base2, stage: 'voices', budgetMs: 1 })).toMatch(/DISPATCHED: outside-voice path=\d+ queued/);
+    const starts = h2.starts.length;
+    expect(await runPass(h2, { ...base2, stage: 'voices', models: same })).toMatch(refused);
+    expect(h2.starts.length).toBe(starts);
+  }, 300_000);
+
+  // Value: protects=a lane whose family is unknown or not Anthropic gets no default outside voice, and an explicit one cannot skip the family check; fails_when=the pin applies to a lane it was not certified for, or an outside voice runs with nothing to compare its family to;
+  //   why_new=GSTA-167 plan R2; seam=none; no_claim=an OpenAI lane's pairing, which is uncertified
+  test('a missing lane identity STOPs the outside voice: none given, or given with nothing to compare its family to', async () => {
+    const { dir, env } = repo();
+    const h = host(dir, env);
+    const base = { base: 'main', out: path.join(dir, '.state/run/p1'), pass: 'x16p1', planFlags: ['--depth-floor', 'full'] };
+    expect(await runPass(h, base)).toContain('NEXT: judge (Phase 4)');
+    const none = "STOP: the outside voice needs input.models['outside-voice'] (a model of another family); none was given";
+    expect(await runPass(h, { ...base, stage: 'voices', laneModel: undefined })).toContain(none);
+    expect(await runPass(h, { ...base, stage: 'voices', laneModel: 'openai/gpt-6.1-sol' })).toContain(none);
+    expect(await runPass(h, { ...base, stage: 'voices', laneModel: undefined, models: { 'outside-voice': { model_id: 'openai/gpt-6.1-sol', reasoning_mode: 'medium' } } }))
+      .toContain('STOP: the outside voice openai/gpt-6.1-sol cannot be checked against another family: neither input.laneModel nor a native voice model was given');
+    expect(h.creates.some(c => /^ship x16p1 (adversarial-native|outside-voice)$/.test(c.title))).toBe(false);
+  }, 240_000);
+
+  const certified = { model_id: 'openai/gpt-6.1-sol', reasoning_mode: 'medium' };
+  async function voicesRun(dir: string, env: NodeJS.ProcessEnv, sub: string, models?: Record<string, unknown>) {
+    const out = path.join(dir, '.state/run', sub);
+    const h = host(dir, env);
+    const base = { base: 'main', out, pass: 'x17p1', planFlags: ['--depth-floor', 'full'] };
+    expect(await runPass(h, base)).toContain('NEXT: judge (Phase 4)');
+    const res = await runPass(h, { ...base, stage: 'voices', ...(models ? { models } : {}) });
+    const m = JSON.parse(fs.readFileSync(path.join(out, 'pass-manifest.json'), 'utf8')) as Manifest;
+    for (const r of m.readers) expect(h.creates.find(c => c.title === r.title)!.prompt).toBe(fs.readFileSync(r.file!, 'utf8'));
+    const shas = Object.fromEntries(h.creates.map(c => [c.title, promptHash(c.prompt.split(out).join('<out>'))]));
+    return { res, shas, models: Object.fromEntries(h.creates.map(c => [c.title, c.model])) };
+  }
+
+  // Value: protects=an Anthropic lane's Step 11 gets the certified outside voice (openai/gpt-6.1-sol at medium, as rounds 3-6 and A3668 ran) without naming it, and every brief goes out byte for byte as it does with that model named; fails_when=the lane must pick the outside voice (gpt-6-astra in 6c/7e/8g), or the pin changes any reader's brief or another reader's model;
+  //   why_new=GSTA-167 plan R2; seam=none; no_claim=the certified pair's recall, which arm-L6 measured
+  test('an anthropic lane defaults the outside voice to the certified model, with every brief byte-identical to naming it', async () => {
+    const { dir, env } = repo();
+    const pinned = await voicesRun(dir, env, 'pin');
+    expect(pinned.res).toContain('OUTSIDE_VOICE: openai/gpt-6.1-sol reasoning=medium default for an anthropic lane (certified configuration)');
+    expect(pinned.res).toContain('NEXT: judge the voices');
+    expect(pinned.models['ship x17p1 outside-voice']).toEqual(certified);
+    const named = await voicesRun(dir, env, 'named', { 'outside-voice': certified });
+    expect(named.res).toContain('OUTSIDE_VOICE: openai/gpt-6.1-sol reasoning=medium given (certified configuration)');
+    expect(named.shas).toEqual(pinned.shas);
+    expect(named.models).toEqual(pinned.models);
+  }, 300_000);
+
+  // Value: protects=an explicit cross-family override is accepted but its pass output says it is outside the certified configuration; fails_when=a changed outside-voice model or reasoning passes silently as if certified;
+  //   why_new=GSTA-167 plan R2; seam=none; no_claim=the uncertified configuration's recall
+  test('an explicit outside-voice override with changed reasoning runs and is recorded as uncertified, other briefs unchanged', async () => {
+    const { dir, env } = repo();
+    const high = { model_id: 'openai/gpt-6.1-sol', reasoning_mode: 'high' };
+    const over = await voicesRun(dir, env, 'over', { 'outside-voice': high });
+    expect(over.res).toContain('OUTSIDE_VOICE: openai/gpt-6.1-sol reasoning=high given; outside the certified configuration (openai/gpt-6.1-sol at medium beside an anthropic lane)');
+    expect(over.res).toContain('NEXT: judge the voices');
+    expect(over.models['ship x17p1 outside-voice']).toEqual(high);
+    const named = await voicesRun(dir, env, 'named', { 'outside-voice': certified });
+    expect(over.shas).toEqual(named.shas);
+    for (const t of Object.keys(named.models)) if (t !== 'ship x17p1 outside-voice') expect(over.models[t]).toEqual(named.models[t]);
+  }, 300_000);
+
   test('an audit reader marked first settles before any specialist starts; its output is returned, never merged', async () => {
     const { dir, env } = repo();
     const out = path.join(dir, '.state/run/p1');
diff --git a/test/ship-driver.test.ts b/test/ship-driver.test.ts
index 9ef64eb8a..44e948c0e 100644
--- a/test/ship-driver.test.ts
+++ b/test/ship-driver.test.ts
@@ -210,7 +210,7 @@ describe('variant G: the call plan, observe budget, waits and audit readers (GST
   // Value: protects=audits that cannot block (Steps 7, 8, 9.2.1, 14.5) run on a small model at low effort with their sections' own briefs, and skip their reader when --audit decides them; fails_when=an audit reader inherits the lane's model and effort (#36: the coverage audit alone was 2.45M at Opus), or an audit brief is paraphrased;
   //   why_new=audit model routing is new; seam=none; no_claim=the audits' recall
   test('audit readers run on a small model at low effort, named for Capy, and Phase 3 dispatches only what READER names', () => {
-    expect(flat(doc)).toContain('Audit readers (Steps 7, 8, 9.2.1, 14.5) cannot block, so each runs on a small model at low effort; their findings go to the PR body');
+    expect(flat(doc)).toContain('Audit readers (Steps 7, 8, 9.2.1, 14.5) cannot block, so each runs at low effort on a small model, Step 14.5 once on Sonnet 5.5; findings go to the PR body');
     expect(flat(doc)).toContain('`Coverage:` and Step 8\'s line come from `--audit` when no reader ran');
     const capy = read('capy/skill/gstack/SKILL.md');
     expect(capy).toContain('model: { model_id: "anthropic/claude-sonnet-5-5", reasoning_mode: "low" }');