diff --git a/.agents/scripts/audit-translations.allowlist.json b/.agents/scripts/audit-translations.allowlist.json
new file mode 100644
index 0000000..49bef57
--- /dev/null
+++ b/.agents/scripts/audit-translations.allowlist.json
@@ -0,0 +1,112 @@
+{
+  "entries": [
+    {
+      "collection": "chapters",
+      "file": "agents.json",
+      "field": "sections.1.steps.0.label",
+      "reason": "Handoff step label (\"Brief\"); kept English by glossary convention."
+    },
+    {
+      "collection": "chapters",
+      "file": "landing.json",
+      "field": "cards.0.label",
+      "reason": "Numeric card label (\"01\"); identical across locales by design."
+    },
+    {
+      "collection": "chapters",
+      "file": "landing.json",
+      "field": "cards.1.label",
+      "reason": "Numeric card label (\"02\"); identical across locales by design."
+    },
+    {
+      "collection": "chapters",
+      "file": "landing.json",
+      "field": "cards.2.label",
+      "reason": "Numeric card label (\"03\"); identical across locales by design."
+    },
+    {
+      "collection": "chapters",
+      "file": "landing.json",
+      "field": "cards.2.title",
+      "reason": "Product noun (\"Skills\"); kept English by glossary convention."
+    },
+    {
+      "collection": "chapters",
+      "file": "landing.json",
+      "field": "cards.3.label",
+      "reason": "Numeric card label (\"04\"); identical across locales by design."
+    },
+    {
+      "collection": "chapters",
+      "file": "landing.json",
+      "field": "cards.4.label",
+      "reason": "Numeric card label (\"05\"); identical across locales by design."
+    },
+    {
+      "collection": "chapters",
+      "file": "landing.json",
+      "field": "cards.5.label",
+      "reason": "Numeric card label (\"06\"); identical across locales by design."
+    },
+    {
+      "collection": "chapters",
+      "file": "summary.json",
+      "field": "cards.0.label",
+      "reason": "Numeric card label (\"01\"); identical across locales by design."
+    },
+    {
+      "collection": "chapters",
+      "file": "summary.json",
+      "field": "cards.1.label",
+      "reason": "Numeric card label (\"02\"); identical across locales by design."
+    },
+    {
+      "collection": "chapters",
+      "file": "summary.json",
+      "field": "cards.2.label",
+      "reason": "Numeric card label (\"03\"); identical across locales by design."
+    },
+    {
+      "collection": "chapters",
+      "file": "summary.json",
+      "field": "cards.2.title",
+      "reason": "Product noun (\"Skills\"); kept English by glossary convention."
+    },
+    {
+      "collection": "chapters",
+      "file": "summary.json",
+      "field": "cards.3.label",
+      "reason": "Numeric card label (\"04\"); identical across locales by design."
+    },
+    {
+      "collection": "chapters",
+      "file": "summary.json",
+      "field": "cards.4.label",
+      "reason": "Numeric card label (\"05\"); identical across locales by design."
+    },
+    {
+      "collection": "chapters",
+      "file": "summary.json",
+      "field": "cards.5.label",
+      "reason": "Numeric card label (\"06\"); identical across locales by design."
+    },
+    {
+      "collection": "providers",
+      "file": "claude.json",
+      "field": "title",
+      "reason": "Model-tier series name (\"Opus · Sonnet · Haiku\"); kept English as product name."
+    },
+    {
+      "collection": "providers",
+      "file": "gemini.json",
+      "field": "title",
+      "reason": "Model-tier series name (\"Pro · Flash · Flash-Lite\"); kept English as product name."
+    },
+    {
+      "collection": "providers",
+      "file": "openai.json",
+      "field": "title",
+      "reason": "Model-tier series name (\"Sol · Terra · Luna\"); kept English as product name."
+    }
+  ]
+}
diff --git a/.agents/scripts/audit-translations.mjs b/.agents/scripts/audit-translations.mjs
index b663056..bcad668 100644
--- a/.agents/scripts/audit-translations.mjs
+++ b/.agents/scripts/audit-translations.mjs
@@ -7,16 +7,25 @@
 //   node .agents/scripts/audit-translations.mjs                 # walks src/content
 //   node .agents/scripts/audit-translations.mjs src/content/    # explicit root
 //
-// Exits non-zero if any pair is identical. The output is grouped by
-// collection, then by file, then by field path, so the report reads like
+// Exits non-zero if any unallowed pair is identical. The output is grouped
+// by collection, then by file, then by field path, so the report reads like
 // a translation backlog rather than a wall of strings.
 //
 // This is the sibling of extract-strings.mjs: that one proves the
 // migration moved every string; this one proves every string actually
 // differs across locales.
+//
+// Allowlist: a sibling `.agents/scripts/audit-translations.allowlist.json`
+// lists (collection, file, field) tuples that are intentionally identical
+// across locales (numeric card labels, product nouns, model-tier series
+// names, etc.). Entries in the allowlist are listed under "ALLOWED" in the
+// output and do not affect the exit code. Adding to the allowlist is a
+// deliberate edit + commit; future translators can see it and understand
+// which identicals are intentional.
 
-import { readFileSync, readdirSync, statSync } from 'node:fs';
-import { join, relative } from 'node:path';
+import { existsSync, readFileSync, readdirSync, statSync } from 'node:fs';
+import { dirname, join, relative } from 'node:path';
+import { fileURLToPath } from 'node:url';
 
 const ROOT = process.argv[2] ?? 'src/content';
 
@@ -69,9 +78,27 @@ const collectionOf = (file, root) => {
   return parts.length >= 2 ? parts[0] : '(root)';
 };
 
+// Load the allowlist. The file lives next to this script and lists
+// intentional identicals (numeric labels, product nouns, model-tier series
+// names, etc.). Missing file is OK — the audit still runs.
+const here = dirname(fileURLToPath(import.meta.url));
+const allowlistPath = join(here, 'audit-translations.allowlist.json');
+const allowlist = new Set();
+const allowlistReasons = new Map();
+
+if (existsSync(allowlistPath)) {
+  const { entries } = JSON.parse(readFileSync(allowlistPath, 'utf8'));
+  for (const { collection, file, field, reason } of entries) {
+    allowlist.add(`${collection}${file}${field}`);
+    allowlistReasons.set(`${collection}${file}${field}`, reason);
+  }
+}
+
 const groups = new Map();
+const allowedGroups = new Map();
 let totalLocalized = 0;
-let totalIdentical = 0;
+let totalReal = 0;
+let totalAllowed = 0;
 
 for (const file of files) {
   let data;
@@ -84,40 +111,78 @@ for (const file of files) {
   const pairs = collect(data);
   if (pairs.length === 0) continue;
 
-  const offenders = pairs.filter(([, en, pt]) => same(en, pt));
-  if (offenders.length === 0) continue;
-
-  totalLocalized += pairs.length;
-  totalIdentical += offenders.length;
-
   const collection = collectionOf(file, ROOT);
   const filename = relative(ROOT, file);
+  // Allowlist entries key on the file's name within its collection
+  // (e.g. `landing.json`), so strip the collection prefix from
+  // `filename` when matching. The full relative path is still used
+  // for the report display.
+  const collectionFile = filename.startsWith(collection + '/')
+    ? filename.slice(collection.length + 1)
+    : filename;
 
-  if (!groups.has(collection)) groups.set(collection, []);
-  groups.get(collection).push({ file: filename, pairs: offenders });
+  // Split identical pairs into real offenders (fail the gate) and
+  // allowlisted ones (listed under ALLOWED, do not affect exit code).
+  const real = [];
+  const allowed = [];
+  for (const [field, en, pt] of pairs) {
+    if (!same(en, pt)) continue;
+    const key = `${collection}${collectionFile}${field}`;
+    if (allowlist.has(key)) {
+      allowed.push([field, en, allowlistReasons.get(key)]);
+    } else {
+      real.push([field, en, null]);
+    }
+  }
+
+  totalLocalized += pairs.length;
+
+  if (real.length > 0) {
+    totalReal += real.length;
+    if (!groups.has(collection)) groups.set(collection, []);
+    groups.get(collection).push({ file: filename, pairs: real });
+  }
+
+  if (allowed.length > 0) {
+    totalAllowed += allowed.length;
+    if (!allowedGroups.has(collection)) allowedGroups.set(collection, []);
+    allowedGroups.get(collection).push({ file: filename, pairs: allowed });
+  }
 }
 
-if (groups.size === 0) {
+const printGroup = (entries, label) => {
+  for (const [collection, list] of entries) {
+    console.log(`\n[${collection}]`);
+    for (const { file, pairs } of list) {
+      console.log(`  ${file}`);
+      for (const [field, en, reason] of pairs) {
+        const sample = typeof en === 'string' ? JSON.stringify(en).slice(0, 80) : '<non-string>';
+        const suffix = reason ? ` [${label}: ${reason}]` : '';
+        console.log(`    - ${field.padEnd(28)} ${sample}${suffix}`);
+      }
+    }
+  }
+};
+
+// Clean case: no identicals at all.
+if (totalReal === 0 && totalAllowed === 0) {
   console.log('OK: no identical en/pt pairs found under', ROOT);
   process.exit(0);
 }
 
-// Print grouped report.
-for (const [collection, entries] of groups) {
-  console.log(`\n[${collection}]`);
-  for (const { file, pairs } of entries) {
-    console.log(`  ${file}`);
-    for (const [field, en, pt] of pairs) {
-      const sample = typeof en === 'string' ? JSON.stringify(en).slice(0, 80) : '<non-string>';
-      console.log(`    - ${field.padEnd(28)} ${sample}`);
-    }
-  }
+// Show allowed entries first, then real offenders (if any).
+printGroup(allowedGroups, 'ALLOWED');
+
+if (totalReal > 0) {
+  printGroup(groups, 'REAL');
+  console.log(
+    `\nFAIL: ${totalReal} unallowed identical localized field(s) across ${groups.size} collection(s) of ${ROOT}`,
+  );
+  console.log(
+    'A `pt` identical to `en` is how a bilingual site becomes monolingual. Translate, then re-run.',
+  );
+  process.exit(1);
 }
 
-console.log(
-  `\nFAIL: ${totalIdentical} identical localized field(s) across ${groups.size} collection(s) of ${ROOT}`,
-);
-console.log(
-  'A `pt` identical to `en` is how a bilingual site becomes monolingual. Translate, then re-run.',
-);
-process.exit(1);
+console.log(`\nOK: ${totalAllowed} identical field(s) found, all on the allowlist.`);
+process.exit(0);
diff --git a/package.json b/package.json
index 73ea234..12ce04f 100644
--- a/package.json
+++ b/package.json
@@ -9,7 +9,7 @@
     "check": "astro check",
     "lint": "eslint . --max-warnings=0 && stylelint --allow-empty-input 'src/**/*.css' --max-warnings=0",
     "format": "prettier --write .",
-    "verify": "node scripts/verify.mjs && node scripts/audit-ui.mjs && node .agents/scripts/check-tokens.mjs",
+    "verify": "node .agents/scripts/audit-translations.mjs && node scripts/verify.mjs && node scripts/audit-ui.mjs && node .agents/scripts/check-tokens.mjs",
     "gate": "./.agents/scripts/gate.sh",
     "snapshot": "node .agents/scripts/snapshot-route.mjs",
     "prepare": "husky"
diff --git a/scripts/verify.mjs b/scripts/verify.mjs
index 8cda785..662e66d 100644
--- a/scripts/verify.mjs
+++ b/scripts/verify.mjs
@@ -271,11 +271,13 @@ if (!allPages.every(([, page]) => page.includes('name="viewport"')))
   throw new Error('a built route lacks a viewport declaration');
 if (allPages.some(([, page]) => /<(script|link)[^>]+(src|href)="https?:[^\"]+"/i.test(page)))
   throw new Error('a built route has an external runtime dependency');
-if (
-  !read('package.json').includes(
-    '"verify": "node scripts/verify.mjs && node scripts/audit-ui.mjs && node .agents/scripts/check-tokens.mjs"',
-  )
-)
+// `pnpm run verify` may now prepend `node .agents/scripts/audit-translations.mjs &&`
+// for fail-fast translation checks. Allow an optional audit-translations prefix
+// while still requiring the three core scripts in order.
+const verifyChain = read('package.json');
+const verifyShape =
+  /\"verify\":\s*\"(?:node \.agents\/scripts\/audit-translations\.mjs && )?node scripts\/verify\.mjs && node scripts\/audit-ui\.mjs && node \.agents\/scripts\/check-tokens\.mjs\"/;
+if (!verifyShape.test(verifyChain))
   throw new Error('pnpm verify no longer runs audit-ui and check-tokens');
 if (!read('.agents/scripts/gate.sh').includes('pnpm run verify'))
   throw new Error('the gate no longer runs the output contract');
diff --git a/src/content/chapters/agents.json b/src/content/chapters/agents.json
index f5093a0..22f1971 100644
--- a/src/content/chapters/agents.json
+++ b/src/content/chapters/agents.json
@@ -2,57 +2,57 @@
   "id": "agents",
   "eyebrow": {
     "en": "Subagent workflow",
-    "pt": "Subagent workflow"
+    "pt": "Fluxo de subagentes"
   },
   "title": {
     "en": "One branch<br>per <em>hand.</em>",
-    "pt": "One branch<br>per <em>hand.</em>"
+    "pt": "Uma branch<br>por <em>mão.</em>"
   },
   "lede": {
     "en": "Agents work when roles, files, and evidence are bounded. A worktree gives each worker its own checkout while the orchestrator protects intent.",
-    "pt": "Agents work when roles, files, and evidence are bounded. A worktree gives each worker its own checkout while the orchestrator protects intent."
+    "pt": "Agentes funcionam quando papéis, arquivos e evidências são delimitados. Um worktree dá a cada agente seu próprio checkout enquanto o orquestrador protege a intenção."
   },
   "cards": [
     {
       "label": {
         "en": "FRAME",
-        "pt": "FRAME"
+        "pt": "ENQUADRAR"
       },
       "title": {
         "en": "Orchestrator",
-        "pt": "Orchestrator"
+        "pt": "Orquestrador"
       },
       "copy": {
         "en": "Owns scope, task graph, boundaries, and integration.",
-        "pt": "Owns scope, task graph, boundaries, and integration."
+        "pt": "Dono do escopo, do grafo de tarefas, das fronteiras e da integração."
       }
     },
     {
       "label": {
         "en": "HAND OFF",
-        "pt": "HAND OFF"
+        "pt": "PASSAR"
       },
       "title": {
         "en": "Worker",
-        "pt": "Worker"
+        "pt": "Agente"
       },
       "copy": {
         "en": "Owns one coherent slice and one worktree.",
-        "pt": "Owns one coherent slice and one worktree."
+        "pt": "Dono de uma fatia coerente e de um worktree."
       }
     },
     {
       "label": {
         "en": "PROVE",
-        "pt": "PROVE"
+        "pt": "COMPROVAR"
       },
       "title": {
         "en": "Verifier",
-        "pt": "Verifier"
+        "pt": "Verificador"
       },
       "copy": {
         "en": "Re-runs gates and reports remaining gaps.",
-        "pt": "Re-runs gates and reports remaining gaps."
+        "pt": "Roda gates novamente e reporta o que ainda falta."
       }
     }
   ],
@@ -60,29 +60,29 @@
     {
       "eyebrow": {
         "en": "The tree",
-        "pt": "The tree"
+        "pt": "A árvore"
       },
       "title": {
         "en": "Split at<br>the <em>seam.</em>",
-        "pt": "Split at<br>the <em>seam.</em>"
+        "pt": "Divida na<br><em>costura.</em>"
       },
       "panelLabel": {
         "en": "MAIN / ORCHESTRATOR",
-        "pt": "MAIN / ORCHESTRATOR"
+        "pt": "MAIN / ORQUESTRADOR"
       },
       "panelCode": {
         "en": "├── agent/ui    → components + visual states\n├── agent/tests → acceptance + regressions\n└── agent/docs  → guide + examples\n\nmerge after each leaf returns a diff and evidence",
-        "pt": "├── agent/ui    → components + visual states\n├── agent/tests → acceptance + regressions\n└── agent/docs  → guide + examples\n\nmerge after each leaf returns a diff and evidence"
+        "pt": "├── agent/ui    → componentes + estados visuais\n├── agent/tests → aceitação + regressões\n└── agent/docs  → guia + exemplos\n\nfaça merge depois que cada folha devolver um diff e evidências"
       }
     },
     {
       "eyebrow": {
         "en": "Handoff",
-        "pt": "Handoff"
+        "pt": "Passagem"
       },
       "title": {
         "en": "Context that<br>can <em>travel.</em>",
-        "pt": "Context that<br>can <em>travel.</em>"
+        "pt": "Contexto que<br>pode <em>viajar.</em>"
       },
       "steps": [
         {
@@ -92,27 +92,27 @@
           },
           "copy": {
             "en": "Goal, owned files, dependencies, non-goals, acceptance.",
-            "pt": "Goal, owned files, dependencies, non-goals, acceptance."
+            "pt": "Objetivo, arquivos sob sua posse, dependências, fora de escopo, aceitação."
           }
         },
         {
           "label": {
             "en": "Isolation",
-            "pt": "Isolation"
+            "pt": "Isolamento"
           },
           "copy": {
             "en": "One branch and worktree per independent change.",
-            "pt": "One branch and worktree per independent change."
+            "pt": "Uma branch e um worktree por mudança independente."
           }
         },
         {
           "label": {
             "en": "Evidence",
-            "pt": "Evidence"
+            "pt": "Evidência"
           },
           "copy": {
             "en": "Commands, result, changed files, screenshots, gaps.",
-            "pt": "Commands, result, changed files, screenshots, gaps."
+            "pt": "Comandos, resultado, arquivos alterados, capturas de tela, lacunas."
           }
         }
       ]
diff --git a/src/content/chapters/landing.json b/src/content/chapters/landing.json
index a51dd37..24874a2 100644
--- a/src/content/chapters/landing.json
+++ b/src/content/chapters/landing.json
@@ -1,83 +1,89 @@
 {
   "id": "landing",
-  "eyebrow": { "en": "The short route", "pt": "The short route" },
-  "title": { "en": "Ship the<br><em>system.</em>", "pt": "Ship the<br><em>system.</em>" },
+  "eyebrow": {
+    "en": "The short route",
+    "pt": "A rota curta"
+  },
+  "title": {
+    "en": "Ship the<br><em>system.</em>",
+    "pt": "Entregue o<br><em>sistema.</em>"
+  },
   "lede": {
     "en": "Start with the map. Then open the one chapter that matches the decision in front of you: model, agent, worktree, skill, rule, or proof.",
-    "pt": "Start with the map. Then open the one chapter that matches the decision in front of you: model, agent, worktree, skill, rule, or proof."
+    "pt": "Comece pelo mapa. Depois abra o capítulo que combina com a decisão à sua frente: modelo, agente, worktree, skill, regra ou prova."
   },
   "threadLabel": {
     "en": "THE THREAD",
-    "pt": "THE THREAD"
+    "pt": "O FIO"
   },
   "threadText": {
     "en": "Frame uncertainty → isolate execution → preserve judgment → verify the change.",
-    "pt": "Frame uncertainty → isolate execution → preserve judgment → verify the change."
+    "pt": "Enquadre a incerteza → isole a execução → preserve o julgamento → verifique a mudança."
   },
   "footer": {
     "en": "The route map is now the default entry. The full guide remains available whenever you want the whole narrative.",
-    "pt": "The route map is now the default entry. The full guide remains available whenever you want the whole narrative."
+    "pt": "O mapa de rotas é agora a entrada padrão. O guia completo segue disponível sempre que você quiser a narrativa inteira."
   },
   "cards": [
     {
       "label": { "en": "01", "pt": "01" },
-      "title": { "en": "Models", "pt": "Models" },
+      "title": { "en": "Models", "pt": "Modelos" },
       "copy": {
         "en": "Capability and effort are separate knobs.",
-        "pt": "Capability and effort are separate knobs."
+        "pt": "Capacidade e esforço são controles separados."
       },
       "href": "models/",
-      "cta": { "en": "Open chapter →", "pt": "Open chapter →" }
+      "cta": { "en": "Open chapter →", "pt": "Abrir capítulo →" }
     },
     {
       "label": { "en": "02", "pt": "02" },
-      "title": { "en": "Agents & trees", "pt": "Agents & trees" },
+      "title": { "en": "Agents & trees", "pt": "Agentes e árvores" },
       "copy": {
         "en": "Bound roles, handoffs, and worktrees.",
-        "pt": "Bound roles, handoffs, and worktrees."
+        "pt": "Limite papéis, handoffs e worktrees."
       },
       "href": "agents/",
-      "cta": { "en": "Open chapter →", "pt": "Open chapter →" }
+      "cta": { "en": "Open chapter →", "pt": "Abrir capítulo →" }
     },
     {
       "label": { "en": "03", "pt": "03" },
       "title": { "en": "Skills", "pt": "Skills" },
       "copy": {
         "en": "Capture repeatable decisions in small packages.",
-        "pt": "Capture repeatable decisions in small packages."
+        "pt": "Capture decisões repetíveis em pacotes pequenos."
       },
       "href": "skills/",
-      "cta": { "en": "Open chapter →", "pt": "Open chapter →" }
+      "cta": { "en": "Open chapter →", "pt": "Abrir capítulo →" }
     },
     {
       "label": { "en": "04", "pt": "04" },
-      "title": { "en": "Rules", "pt": "Rules" },
+      "title": { "en": "Rules", "pt": "Regras" },
       "copy": {
         "en": "Connect guidance to enforcement.",
-        "pt": "Connect guidance to enforcement."
+        "pt": "Conecte orientação a enforcement."
       },
       "href": "rules/",
-      "cta": { "en": "Open chapter →", "pt": "Open chapter →" }
+      "cta": { "en": "Open chapter →", "pt": "Abrir capítulo →" }
     },
     {
       "label": { "en": "05", "pt": "05" },
-      "title": { "en": "Hands-on", "pt": "Hands-on" },
+      "title": { "en": "Hands-on", "pt": "Prática" },
       "copy": {
         "en": "Compare a strong prompt with skill-enabled work.",
-        "pt": "Compare a strong prompt with skill-enabled work."
+        "pt": "Compare um prompt forte com trabalho assistido por skills."
       },
       "href": "hands-on/starter/",
-      "cta": { "en": "Open lab →", "pt": "Open lab →" }
+      "cta": { "en": "Open lab →", "pt": "Abrir lab →" }
     },
     {
       "label": { "en": "06", "pt": "06" },
-      "title": { "en": "Review desk", "pt": "Review desk" },
+      "title": { "en": "Review desk", "pt": "Mesa de revisão" },
       "copy": {
         "en": "Browse original packages, references, scripts, and improvements.",
-        "pt": "Browse original packages, references, scripts, and improvements."
+        "pt": "Explore pacotes originais, referências, scripts e melhorias."
       },
       "href": "skills-review/",
-      "cta": { "en": "Open desk →", "pt": "Open desk →" }
+      "cta": { "en": "Open desk →", "pt": "Abrir mesa →" }
     }
   ]
 }
diff --git a/src/content/chapters/models.json b/src/content/chapters/models.json
index 48842df..8857d82 100644
--- a/src/content/chapters/models.json
+++ b/src/content/chapters/models.json
@@ -2,57 +2,57 @@
   "id": "models",
   "eyebrow": {
     "en": "Model routing",
-    "pt": "Model routing"
+    "pt": "Roteamento de modelos"
   },
   "title": {
     "en": "Choose the<br><em>engine.</em>",
-    "pt": "Choose the<br><em>engine.</em>"
+    "pt": "Escolha o<br><em>motor.</em>"
   },
   "lede": {
     "en": "A model has a capability ceiling. Effort controls how much room it gets to reason. Route by uncertainty and verification cost.",
-    "pt": "A model has a capability ceiling. Effort controls how much room it gets to reason. Route by uncertainty and verification cost."
+    "pt": "Um modelo tem um teto de capacidade. O esforço controla quanto espaço ele ganha para raciocinar. Roteie por incerteza e custo de verificação."
   },
   "cards": [
     {
       "label": {
         "en": "LOW",
-        "pt": "LOW"
+        "pt": "BAIXO"
       },
       "title": {
         "en": "Bounded rhythm",
-        "pt": "Bounded rhythm"
+        "pt": "Ritmo delimitado"
       },
       "copy": {
         "en": "Lookup, small edits, formatting, and transformations with clear checks.",
-        "pt": "Lookup, small edits, formatting, and transformations with clear checks."
+        "pt": "Consultas, edições pequenas, formatação e transformações com checagens claras."
       }
     },
     {
       "label": {
         "en": "MEDIUM",
-        "pt": "MEDIUM"
+        "pt": "MÉDIO"
       },
       "title": {
         "en": "Default work",
-        "pt": "Default work"
+        "pt": "Trabalho padrão"
       },
       "copy": {
         "en": "Normal implementation where the contract is clear but context matters.",
-        "pt": "Normal implementation where the contract is clear but context matters."
+        "pt": "Implementação normal em que o contrato é claro, mas o contexto importa."
       }
     },
     {
       "label": {
         "en": "HIGH",
-        "pt": "HIGH"
+        "pt": "ALTO"
       },
       "title": {
         "en": "Ambiguity",
-        "pt": "Ambiguity"
+        "pt": "Ambiguidade"
       },
       "copy": {
         "en": "Planning, architecture, security judgment, and hard failures.",
-        "pt": "Planning, architecture, security judgment, and hard failures."
+        "pt": "Planejamento, arquitetura, julgamento de segurança e falhas difíceis."
       }
     }
   ],
@@ -60,59 +60,59 @@
     {
       "eyebrow": {
         "en": "Two knobs",
-        "pt": "Two knobs"
+        "pt": "Dois controles"
       },
       "title": {
         "en": "Capability<br>× effort",
-        "pt": "Capability<br>× effort"
+        "pt": "Capacidade<br>× esforço"
       },
       "panelLabel": {
         "en": "ROUTING RULE",
-        "pt": "ROUTING RULE"
+        "pt": "REGRA DE ROTEAMENTO"
       },
       "panelCode": {
         "en": "strong model + high effort → frame ambiguity\nlight model  + low effort  → bounded execution\nraise one knob at a time   → compare evidence",
-        "pt": "strong model + high effort → frame ambiguity\nlight model  + low effort  → bounded execution\nraise one knob at a time   → compare evidence"
+        "pt": "modelo forte + esforço alto → enquadrar ambiguidade\nmodelo leve + esforço baixo → execução delimitada\nsuba um controle por vez    → compare evidências"
       }
     },
     {
       "eyebrow": {
         "en": "Sequence",
-        "pt": "Sequence"
+        "pt": "Sequência"
       },
       "title": {
         "en": "Spend judgment<br>where it <em>compounds.</em>",
-        "pt": "Spend judgment<br>where it <em>compounds.</em>"
+        "pt": "Invista julgamento<br>onde ele <em>compensa.</em>"
       },
       "steps": [
         {
           "label": {
             "en": "Plan",
-            "pt": "Plan"
+            "pt": "Planejar"
           },
           "copy": {
             "en": "Strong model: scope, risks, acceptance, and worktree split.",
-            "pt": "Strong model: scope, risks, acceptance, and worktree split."
+            "pt": "Modelo forte: escopo, riscos, aceitação e divisão de worktrees."
           }
         },
         {
           "label": {
             "en": "Build",
-            "pt": "Build"
+            "pt": "Construir"
           },
           "copy": {
             "en": "Focused worker: smallest context and lightest model that can pass.",
-            "pt": "Focused worker: smallest context and lightest model that can pass."
+            "pt": "Worker focado: o menor contexto e o modelo mais leve que passa."
           }
         },
         {
           "label": {
             "en": "Review",
-            "pt": "Review"
+            "pt": "Revisar"
           },
           "copy": {
             "en": "Independent pass when missed issues cost more than the call.",
-            "pt": "Independent pass when missed issues cost more than the call."
+            "pt": "Revisão independente quando erros perdidos custam mais que a chamada."
           }
         }
       ]
diff --git a/src/content/chapters/skills.json b/src/content/chapters/skills.json
index 06e11f3..6a54ed6 100644
--- a/src/content/chapters/skills.json
+++ b/src/content/chapters/skills.json
@@ -1,56 +1,56 @@
 {
   "id": "skills",
-  "eyebrow": { "en": "Reusable judgment", "pt": "Reusable judgment" },
-  "title": { "en": "Teach the<br><em>decision.</em>", "pt": "Teach the<br><em>decision.</em>" },
+  "eyebrow": { "en": "Reusable judgment", "pt": "Julgamento reutilizável" },
+  "title": { "en": "Teach the<br><em>decision.</em>", "pt": "Ensine a<br><em>decisão.</em>" },
   "lede": {
     "en": "A skill changes behavior. Keep the trigger precise, put the workflow in <code>SKILL.md</code>, and move conditional facts, scripts, and examples into focused files.",
-    "pt": "A skill changes behavior. Keep the trigger precise, put the workflow in <code>SKILL.md</code>, and move conditional facts, scripts, and examples into focused files."
+    "pt": "Uma skill muda comportamento. Mantenha o gatilho preciso, coloque o workflow em <code>SKILL.md</code> e mova fatos condicionais, scripts e exemplos para arquivos focados."
   },
   "sections": [
     {
-      "eyebrow": { "en": "Package anatomy", "pt": "Package anatomy" },
+      "eyebrow": { "en": "Package anatomy", "pt": "Anatomia do pacote" },
       "title": {
         "en": "One job.<br>More than<br>one <em>file.</em>",
-        "pt": "One job.<br>More than<br>one <em>file.</em>"
+        "pt": "Um trabalho.<br>Mais que<br>um <em>arquivo.</em>"
       },
       "copy": {
         "en": "Choose a file to see why it belongs in the package.",
-        "pt": "Choose a file to see why it belongs in the package."
+        "pt": "Escolha um arquivo para ver por que ele pertence ao pacote."
       }
     },
     {
-      "eyebrow": { "en": "Create a skill", "pt": "Create a skill" },
+      "eyebrow": { "en": "Create a skill", "pt": "Crie uma skill" },
       "title": {
         "en": "Observe →<br>trigger →<br>validate",
-        "pt": "Observe →<br>trigger →<br>validate"
+        "pt": "Observe →<br>defina o gatilho →<br>valide"
       },
       "steps": [
         {
-          "label": { "en": "Observe friction", "pt": "Observe friction" },
+          "label": { "en": "Observe friction", "pt": "Observe o atrito" },
           "copy": {
             "en": "Find a repeated decision or failure.",
-            "pt": "Find a repeated decision or failure."
+            "pt": "Encontre uma decisão ou falha repetida."
           }
         },
         {
-          "label": { "en": "Define the trigger", "pt": "Define the trigger" },
+          "label": { "en": "Define the trigger", "pt": "Defina o gatilho" },
           "copy": {
             "en": "Say when it should load and when it should stay out.",
-            "pt": "Say when it should load and when it should stay out."
+            "pt": "Diga quando deve carregar e quando deve ficar de fora."
           }
         },
         {
-          "label": { "en": "Choose anatomy", "pt": "Choose anatomy" },
+          "label": { "en": "Choose anatomy", "pt": "Escolha a anatomia" },
           "copy": {
             "en": "Use references for facts and scripts for deterministic mechanics.",
-            "pt": "Use references for facts and scripts for deterministic mechanics."
+            "pt": "Use referências para fatos e scripts para mecânicas determinísticas."
           }
         },
         {
-          "label": { "en": "Evaluate behavior", "pt": "Evaluate behavior" },
+          "label": { "en": "Evaluate behavior", "pt": "Avalie o comportamento" },
           "copy": {
             "en": "Test realistic prompts, edge cases, safety, and evidence.",
-            "pt": "Test realistic prompts, edge cases, safety, and evidence."
+            "pt": "Teste prompts realistas, casos extremos, segurança e evidência."
           }
         }
       ]
diff --git a/src/content/chapters/summary.json b/src/content/chapters/summary.json
index e003bef..221d54e 100644
--- a/src/content/chapters/summary.json
+++ b/src/content/chapters/summary.json
@@ -1,75 +1,135 @@
 {
   "id": "summary",
-  "eyebrow": { "en": "Start here", "pt": "Start here" },
-  "title": { "en": "Ship the<br><em>system.</em>", "pt": "Ship the<br><em>system.</em>" },
+  "eyebrow": {
+    "en": "Start here",
+    "pt": "Comece aqui"
+  },
+  "title": {
+    "en": "Ship the<br><em>system.</em>",
+    "pt": "Entregue o<br><em>sistema.</em>"
+  },
   "lede": {
     "en": "This guide turns AI work into a shape: frame the problem, choose the model and agent, isolate changes, teach repeatable decisions, and verify the result.",
-    "pt": "This guide turns AI work into a shape: frame the problem, choose the model and agent, isolate changes, teach repeatable decisions, and verify the result."
+    "pt": "Este guia transforma trabalho com IA em uma forma: enquadre o problema, escolha o modelo e o agente, isole mudanças, ensine decisões repetíveis e verifique o resultado."
   },
   "footer": {
     "en": "Each chapter stands alone; the order follows a real task becoming a reliable change.",
-    "pt": "Each chapter stands alone; the order follows a real task becoming a reliable change."
+    "pt": "Cada capítulo se sustenta sozinho; a ordem segue uma tarefa real se tornando uma mudança confiável."
   },
   "cards": [
     {
-      "label": { "en": "01", "pt": "01" },
-      "title": { "en": "Models", "pt": "Models" },
+      "label": {
+        "en": "01",
+        "pt": "01"
+      },
+      "title": {
+        "en": "Models",
+        "pt": "Modelos"
+      },
       "copy": {
         "en": "Capability and effort are separate knobs.",
-        "pt": "Capability and effort are separate knobs."
+        "pt": "Capacidade e esforço são controles separados."
       },
       "href": "../models/",
-      "cta": { "en": "Open chapter →", "pt": "Open chapter →" }
+      "cta": {
+        "en": "Open chapter →",
+        "pt": "Abrir capítulo →"
+      }
     },
     {
-      "label": { "en": "02", "pt": "02" },
-      "title": { "en": "Agents & trees", "pt": "Agents & trees" },
+      "label": {
+        "en": "02",
+        "pt": "02"
+      },
+      "title": {
+        "en": "Agents & trees",
+        "pt": "Agentes e árvores"
+      },
       "copy": {
         "en": "Bound roles, handoffs, and worktrees.",
-        "pt": "Bound roles, handoffs, and worktrees."
+        "pt": "Limite papéis, handoffs e worktrees."
       },
       "href": "../agents/",
-      "cta": { "en": "Open chapter →", "pt": "Open chapter →" }
+      "cta": {
+        "en": "Open chapter →",
+        "pt": "Abrir capítulo →"
+      }
     },
     {
-      "label": { "en": "03", "pt": "03" },
-      "title": { "en": "Skills", "pt": "Skills" },
+      "label": {
+        "en": "03",
+        "pt": "03"
+      },
+      "title": {
+        "en": "Skills",
+        "pt": "Skills"
+      },
       "copy": {
         "en": "Capture repeatable decisions.",
-        "pt": "Capture repeatable decisions."
+        "pt": "Capture decisões repetíveis."
       },
       "href": "../skills/",
-      "cta": { "en": "Open chapter →", "pt": "Open chapter →" }
+      "cta": {
+        "en": "Open chapter →",
+        "pt": "Abrir capítulo →"
+      }
     },
     {
-      "label": { "en": "04", "pt": "04" },
-      "title": { "en": "Rules", "pt": "Rules" },
+      "label": {
+        "en": "04",
+        "pt": "04"
+      },
+      "title": {
+        "en": "Rules",
+        "pt": "Regras"
+      },
       "copy": {
         "en": "Connect guidance to enforcement.",
-        "pt": "Connect guidance to enforcement."
+        "pt": "Conecte orientação a enforcement."
       },
       "href": "../rules/",
-      "cta": { "en": "Open chapter →", "pt": "Open chapter →" }
+      "cta": {
+        "en": "Open chapter →",
+        "pt": "Abrir capítulo →"
+      }
     },
     {
-      "label": { "en": "05", "pt": "05" },
-      "title": { "en": "Practice", "pt": "Practice" },
+      "label": {
+        "en": "05",
+        "pt": "05"
+      },
+      "title": {
+        "en": "Practice",
+        "pt": "Prática"
+      },
       "copy": {
         "en": "Compare prompts and skill-enabled runs.",
-        "pt": "Compare prompts and skill-enabled runs."
+        "pt": "Compare prompts e execuções com skills."
       },
       "href": "../hands-on/starter/",
-      "cta": { "en": "Open lab →", "pt": "Open lab →" }
+      "cta": {
+        "en": "Open lab →",
+        "pt": "Abrir lab →"
+      }
     },
     {
-      "label": { "en": "06", "pt": "06" },
-      "title": { "en": "Review desk", "pt": "Review desk" },
+      "label": {
+        "en": "06",
+        "pt": "06"
+      },
+      "title": {
+        "en": "Review desk",
+        "pt": "Mesa de revisão"
+      },
       "copy": {
         "en": "Browse original files and improved drafts.",
-        "pt": "Browse original files and improved drafts."
+        "pt": "Explore arquivos originais e rascunhos melhorados."
       },
       "href": "../skills-review/",
-      "cta": { "en": "Open desk →", "pt": "Open desk →" }
+      "cta": {
+        "en": "Open desk →",
+        "pt": "Abrir mesa →"
+      }
     }
   ]
 }