diff --git a/app/src/components/flows/canvas/nodeConfig/__tests__/dedupFields.test.tsx b/app/src/components/flows/canvas/nodeConfig/__tests__/dedupFields.test.tsx
new file mode 100644
index 000000000..7f969852e
--- /dev/null
+++ b/app/src/components/flows/canvas/nodeConfig/__tests__/dedupFields.test.tsx
@@ -0,0 +1,37 @@
+/**
+ * Behavior tests for the `dedup` node config form (issue #5263). Covers the
+ * single `key` field: it renders and emits a `config.key` patch as the
+ * `=`-bindable expression is typed. `useT()` falls back to the bundled
+ * English map with no provider mounted (same convention as the sibling
+ * `memoryFields.test.tsx`).
+ */
+import { fireEvent, render, screen } from '@testing-library/react';
+import { describe, expect, it, vi } from 'vitest';
+
+import { DedupForm } from '../dedupFields';
+
+function renderDedupForm(config: Record<string, unknown> = {}) {
+  const onChange = vi.fn();
+  render(<DedupForm config={config} onChange={onChange} />);
+  return { onChange };
+}
+
+describe('DedupForm', () => {
+  it('renders the key field', () => {
+    renderDedupForm();
+    expect(screen.getByTestId('node-config-dedup-key')).toBeInTheDocument();
+  });
+
+  it('seeds the key field from the existing config', () => {
+    renderDedupForm({ key: '=item.id' });
+    expect(screen.getByTestId('node-config-dedup-key')).toHaveValue('=item.id');
+  });
+
+  it('emits a key patch as the expression is typed', () => {
+    const { onChange } = renderDedupForm();
+    fireEvent.change(screen.getByTestId('node-config-dedup-key'), {
+      target: { value: '=item.id' },
+    });
+    expect(onChange).toHaveBeenLastCalledWith({ key: '=item.id' });
+  });
+});
diff --git a/app/src/components/flows/canvas/nodeConfig/dedupFields.tsx b/app/src/components/flows/canvas/nodeConfig/dedupFields.tsx
new file mode 100644
index 000000000..dc3f8a25e
--- /dev/null
+++ b/app/src/components/flows/canvas/nodeConfig/dedupFields.tsx
@@ -0,0 +1,44 @@
+/**
+ * `dedup` node config form (issue #5263 — 14th tinyflows `NodeKind`). Skips
+ * items already seen, keyed by a stable per-item `=`-expression evaluated
+ * against each item (e.g. `=item.id`) — the engine tracks which keys have
+ * already passed through this node and drops repeats.
+ *
+ * Field keys mirror what the engine actually reads at runtime:
+ *  - `key` — `=`-bindable, required. The only config field this node has.
+ */
+import { useT } from '../../../../lib/i18n/I18nContext';
+import { configString, ExpressionField } from './nodeConfigFields';
+import type { UpstreamExpressionOption } from './upstreamOptions';
+
+/**
+ * Deliberately narrower than `NodeConfigFormProps` (`nodeConfigForms.tsx`) —
+ * this form needs no `connections` (dedup nodes don't use the credential
+ * picker), so it isn't imported here just to keep the shape identical. A
+ * component typed against this subset is still assignable into
+ * `NODE_CONFIG_FORMS`'s `NodeConfigForm` slot (the fuller prop type has
+ * every property this one requires).
+ */
+export interface DedupFormProps {
+  config: Record<string, unknown>;
+  onChange: (patch: Record<string, unknown>) => void;
+  upstreamOptions?: UpstreamExpressionOption[];
+}
+
+export function DedupForm({ config, onChange, upstreamOptions }: DedupFormProps) {
+  const { t } = useT();
+
+  return (
+    <div className="space-y-3">
+      <ExpressionField
+        label={t('flows.nodeConfig.dedup.keyLabel')}
+        hint={t('flows.nodeConfig.dedup.keyHint')}
+        value={configString(config, 'key')}
+        onChange={v => onChange({ key: v })}
+        placeholder="=item.id"
+        upstreamOptions={upstreamOptions}
+        testId="node-config-dedup-key"
+      />
+    </div>
+  );
+}
diff --git a/app/src/components/flows/canvas/nodeConfig/nodeConfigForms.tsx b/app/src/components/flows/canvas/nodeConfig/nodeConfigForms.tsx
index d10ccfb46..ad09e088a 100644
--- a/app/src/components/flows/canvas/nodeConfig/nodeConfigForms.tsx
+++ b/app/src/components/flows/canvas/nodeConfig/nodeConfigForms.tsx
@@ -16,6 +16,7 @@
  *  - `trigger`      → `trigger_kind` + kind-specific (`schedule`, `toolkit`/`trigger_slug`)
  *  - `memory`       → `operation` + operation-specific (`scope`/`query`/`flavour`/`key`/`value`/
  *                     `limit`/`min_score`), see `memoryFields.tsx`
+ *  - `dedup`        → `key` (an `=`-bindable per-item id expression), see `dedupFields.tsx`
  */
 import createDebug from 'debug';
 import { useEffect, useState } from 'react';
@@ -32,6 +33,7 @@ import {
   ComposioTriggerField,
   fetchActionSchema,
 } from './composioFields';
+import { DedupForm } from './dedupFields';
 import { MemoryForm } from './memoryFields';
 import { NATIVE_TOOL_PREFIX, NativeToolField } from './nativeToolFields';
 import {
@@ -496,4 +498,5 @@ export const NODE_CONFIG_FORMS: Partial<Record<NodeKind, NodeConfigForm>> = {
   transform: TransformForm,
   code: CodeForm,
   memory: MemoryForm,
+  dedup: DedupForm,
 };
diff --git a/app/src/lib/flows/nodeKindMeta.ts b/app/src/lib/flows/nodeKindMeta.ts
index a88ca529b..9016fca20 100644
--- a/app/src/lib/flows/nodeKindMeta.ts
+++ b/app/src/lib/flows/nodeKindMeta.ts
@@ -1,5 +1,5 @@
 /**
- * Per-kind visual metadata for the 13 tinyflows `NodeKind`s, shared by the
+ * Per-kind visual metadata for the 14 tinyflows `NodeKind`s, shared by the
  * canvas node renderer (`FlowNodeComponent`) and the editable canvas's node
  * palette (`NodePalette`). Kept dependency-free (no React) so both a rendered
  * `<Handle>`-bearing card and a plain palette button can pull the same
@@ -8,7 +8,7 @@
  * Colors cycle through the four CSS-variable-backed semantic ramps
  * (primary/sage/amber/coral) that support Tailwind's `/opacity` modifiers in
  * this codebase (see `tailwind.config.js`) so light/dark theming comes for
- * free; with 13 kinds and 4 ramps some kinds share a color family — the emoji
+ * free; with 14 kinds and 4 ramps some kinds share a color family — the emoji
  * + name remain the primary distinguishers.
  */
 import type { NodeKind } from './types';
@@ -29,12 +29,16 @@ interface NodeKindMeta {
 }
 
 /**
- * The 13 `NodeKind`s in the order they should appear in the palette. Trigger
+ * The 14 `NodeKind`s in the order they should appear in the palette. Trigger
  * leads (every graph needs exactly one); the rest follow the logical grouping
  * of the `tinyflows::model::NodeKind` enum. `memory` (issue #5226) is
- * appended last — the design doc (`08-memory-node.md`) sequences it as the
- * 13th kind deliberately, so it trails `sub_workflow` here too rather than
- * being interleaved with the other `actions`-group kinds.
+ * appended after `sub_workflow` — the design doc (`08-memory-node.md`)
+ * sequences it as the 13th kind deliberately, so it trails `sub_workflow`
+ * here too rather than being interleaved with the other `actions`-group
+ * kinds. `dedup` (issue #5263) is the 14th kind and is appended last in turn
+ * — it renders in the `logic` group (alongside `condition`/`split_out`/
+ * `merge`) regardless of its position here, since {@link PALETTE_ENTRIES_BY_GROUP}
+ * filters by group rather than relying on interleaved array order.
  */
 const NODE_KINDS: NodeKind[] = [
   'trigger',
@@ -50,6 +54,7 @@ const NODE_KINDS: NodeKind[] = [
   'output_parser',
   'sub_workflow',
   'memory',
+  'dedup',
 ];
 
 /** Per-kind emoji + border/chip color + palette group. See the module doc. */
@@ -70,6 +75,10 @@ const NODE_KIND_META: Record<NodeKind, NodeKindMeta> = {
   split_out: { emoji: '📤', color: 'sage', group: 'logic' },
   transform: { emoji: '♻️', color: 'primary', group: 'logic' },
   output_parser: { emoji: '📋', color: 'amber', group: 'logic' },
+  // Skips items already seen, keyed by a stable per-item `=`-expression — a
+  // "logic" node like its neighbours (`condition`/`split_out`/`merge`): it
+  // routes/filters the item stream rather than calling out or reading state.
+  dedup: { emoji: '🪪', color: 'coral', group: 'logic' },
 };
 
 /** Palette group render order. */
diff --git a/app/src/lib/flows/nodeSummary.test.ts b/app/src/lib/flows/nodeSummary.test.ts
index 83d864581..63e1db9f8 100644
--- a/app/src/lib/flows/nodeSummary.test.ts
+++ b/app/src/lib/flows/nodeSummary.test.ts
@@ -72,4 +72,9 @@ describe('describeNode', () => {
     );
     expect(describeNode('memory', { operation: 'search' })).toBe('Searches memory');
   });
+
+  it('describes dedup by its key expression, and falls back generically when unset', () => {
+    expect(describeNode('dedup', { key: '=item.id' })).toBe('Skips items already seen by =item.id');
+    expect(describeNode('dedup', {})).toBe('Skips items already processed');
+  });
 });
diff --git a/app/src/lib/flows/nodeSummary.ts b/app/src/lib/flows/nodeSummary.ts
index c39378817..d012a7389 100644
--- a/app/src/lib/flows/nodeSummary.ts
+++ b/app/src/lib/flows/nodeSummary.ts
@@ -104,6 +104,12 @@ export function describeNode(
       // recall
       return `Recalls memory${scoped}`;
     }
+    case 'dedup': {
+      const key = str(config, 'key');
+      return key
+        ? `Skips items already seen by ${truncate(key, 40)}`
+        : 'Skips items already processed';
+    }
     default:
       return '';
   }
diff --git a/app/src/lib/flows/types.ts b/app/src/lib/flows/types.ts
index 704eca20d..4392a0ad3 100644
--- a/app/src/lib/flows/types.ts
+++ b/app/src/lib/flows/types.ts
@@ -36,7 +36,7 @@ export interface Position {
 }
 
 /**
- * The 13 node kinds `tinyflows` currently defines (`tinyflows::model::NodeKind`).
+ * The 14 node kinds `tinyflows` currently defines (`tinyflows::model::NodeKind`).
  * Wire values are `snake_case` (`#[serde(rename_all = "snake_case")]`).
  *
  * `memory` (issue #5226) is the 13th kind — declarative, in-graph memory
@@ -48,6 +48,11 @@ export interface Position {
  * (`nodeConfig/memoryFields.tsx`) reads/writes the known keys
  * (`operation`, `scope`, `query`, `flavour`, `key`, `value`, `limit`,
  * `min_score`) directly off that bag, same as `condition`/`switch`/etc.
+ *
+ * `dedup` (issue #5263) is the 14th kind — skips items already seen, keyed
+ * by a stable per-item `=`-expression (e.g. `=item.id`). Same free-form
+ * config bag pattern: its one field, `key`, is read/written directly by
+ * `nodeConfig/dedupFields.tsx`.
  */
 export type NodeKind =
   | 'trigger'
@@ -62,7 +67,8 @@ export type NodeKind =
   | 'transform'
   | 'output_parser'
   | 'sub_workflow'
-  | 'memory';
+  | 'memory'
+  | 'dedup';
 
 /**
  * A named connection point on a node. Mirrors `tinyflows::model::Port`.
diff --git a/app/src/lib/i18n/ar.ts b/app/src/lib/i18n/ar.ts
index 64041679f..3232a6ac9 100644
--- a/app/src/lib/i18n/ar.ts
+++ b/app/src/lib/i18n/ar.ts
@@ -4093,6 +4093,7 @@ const messages: TranslationMap = {
   'flows.nodeKind.output_parser': 'محلل المخرجات',
   'flows.nodeKind.sub_workflow': 'سير عمل فرعي',
   'flows.nodeKind.memory': 'الذاكرة',
+  'flows.nodeKind.dedup': 'إزالة التكرار',
   'flows.palette.title': 'العقد',
   'flows.palette.addNode': 'إضافة عقدة {kind}',
   'flows.editor.save': 'حفظ',
@@ -4258,6 +4259,9 @@ const messages: TranslationMap = {
   'flows.nodeConfig.memory.limitHint': 'أقصى عدد من النتائج.',
   'flows.nodeConfig.memory.minScoreLabel': 'الحد الأدنى للنتيجة',
   'flows.nodeConfig.memory.minScoreHint': 'عتبة الصلة من 0 إلى 1.',
+  'flows.nodeConfig.dedup.keyLabel': 'المفتاح',
+  'flows.nodeConfig.dedup.keyHint':
+    'تعبير معرف ثابت لكل عنصر، مثل =item.id. يتم تخطي العناصر التي شوهد مفتاحها من قبل.',
 
   'flows.enableApproval.title': 'هل تسمح لسير العمل هذا بالتنفيذ؟',
   'flows.enableApproval.intro':
diff --git a/app/src/lib/i18n/bn.ts b/app/src/lib/i18n/bn.ts
index 9064ee349..2b97f4551 100644
--- a/app/src/lib/i18n/bn.ts
+++ b/app/src/lib/i18n/bn.ts
@@ -4195,6 +4195,7 @@ const messages: TranslationMap = {
   'flows.nodeKind.output_parser': 'আউটপুট পার্সার',
   'flows.nodeKind.sub_workflow': 'সাব-ওয়ার্কফ্লো',
   'flows.nodeKind.memory': 'মেমরি',
+  'flows.nodeKind.dedup': 'ডুপ্লিকেট অপসারণ',
   'flows.palette.title': 'নোড',
   'flows.palette.addNode': '{kind} নোড যোগ করুন',
   'flows.editor.save': 'সংরক্ষণ করুন',
@@ -4365,6 +4366,9 @@ const messages: TranslationMap = {
   'flows.nodeConfig.memory.limitHint': 'সর্বোচ্চ ফলাফল সংখ্যা।',
   'flows.nodeConfig.memory.minScoreLabel': 'সর্বনিম্ন স্কোর',
   'flows.nodeConfig.memory.minScoreHint': '০ থেকে ১ পর্যন্ত প্রাসঙ্গিকতার থ্রেশহোল্ড।',
+  'flows.nodeConfig.dedup.keyLabel': 'কী',
+  'flows.nodeConfig.dedup.keyHint':
+    'প্রতিটি আইটেমের জন্য একটি স্থিতিশীল আইডি এক্সপ্রেশন, যেমন =item.id। যেসব আইটেমের কী আগে দেখা গেছে সেগুলো এড়িয়ে যাওয়া হয়।',
 
   'flows.enableApproval.title': 'এই ওয়ার্কফ্লোকে কাজ করার অনুমতি দেবেন?',
   'flows.enableApproval.intro':
diff --git a/app/src/lib/i18n/de.ts b/app/src/lib/i18n/de.ts
index 19eadf752..49823f453 100644
--- a/app/src/lib/i18n/de.ts
+++ b/app/src/lib/i18n/de.ts
@@ -4313,6 +4313,7 @@ const messages: TranslationMap = {
   'flows.nodeKind.output_parser': 'Ausgabe-Parser',
   'flows.nodeKind.sub_workflow': 'Unter-Workflow',
   'flows.nodeKind.memory': 'Gedächtnis',
+  'flows.nodeKind.dedup': 'Deduplizierung',
   'flows.palette.title': 'Knoten',
   'flows.palette.addNode': '{kind}-Knoten hinzufügen',
   'flows.editor.save': 'Speichern',
@@ -4488,6 +4489,9 @@ const messages: TranslationMap = {
   'flows.nodeConfig.memory.limitHint': 'Maximale Anzahl an Ergebnissen.',
   'flows.nodeConfig.memory.minScoreLabel': 'Mindestbewertung',
   'flows.nodeConfig.memory.minScoreHint': 'Relevanzschwelle von 0 bis 1.',
+  'flows.nodeConfig.dedup.keyLabel': 'Schlüssel',
+  'flows.nodeConfig.dedup.keyHint':
+    'Ein stabiler Id-Ausdruck pro Element, z. B. =item.id. Elemente mit einem bereits gesehenen Schlüssel werden übersprungen.',
 
   'flows.enableApproval.title': 'Darf dieser Workflow Aktionen ausführen?',
   'flows.enableApproval.intro':
diff --git a/app/src/lib/i18n/en.ts b/app/src/lib/i18n/en.ts
index 2bf26e395..342ca4ee4 100644
--- a/app/src/lib/i18n/en.ts
+++ b/app/src/lib/i18n/en.ts
@@ -4767,6 +4767,7 @@ const en: TranslationMap = {
   'flows.nodeKind.output_parser': 'Output parser',
   'flows.nodeKind.sub_workflow': 'Sub-workflow',
   'flows.nodeKind.memory': 'Memory',
+  'flows.nodeKind.dedup': 'Dedup',
 
   // ── Editable Workflow Canvas (issue B5b.2 / Phase 3a): the node palette
   // and editor toolbar layered on top of the read-only canvas above.
@@ -4950,6 +4951,10 @@ const en: TranslationMap = {
   'flows.nodeConfig.memory.limitHint': 'Maximum number of results.',
   'flows.nodeConfig.memory.minScoreLabel': 'Minimum score',
   'flows.nodeConfig.memory.minScoreHint': 'Relevance threshold from 0 to 1.',
+  // `dedup` node (issue #5263): skips items already seen by a stable per-item key.
+  'flows.nodeConfig.dedup.keyLabel': 'Key',
+  'flows.nodeConfig.dedup.keyHint':
+    'A stable per-item id expression, e.g. =item.id. Items with a key already seen are skipped.',
 
   // Phase 4a "New workflow" chooser + Phase 4c templates gallery. The chooser
   // offers scratch / template / describe; the gallery lists the curated
diff --git a/app/src/lib/i18n/es.ts b/app/src/lib/i18n/es.ts
index 6ad47b1d8..8925fb90d 100644
--- a/app/src/lib/i18n/es.ts
+++ b/app/src/lib/i18n/es.ts
@@ -4264,6 +4264,7 @@ const messages: TranslationMap = {
   'flows.nodeKind.output_parser': 'Analizador de salida',
   'flows.nodeKind.sub_workflow': 'Subflujo de trabajo',
   'flows.nodeKind.memory': 'Memoria',
+  'flows.nodeKind.dedup': 'Deduplicación',
   'flows.palette.title': 'Nodos',
   'flows.palette.addNode': 'Añadir nodo {kind}',
   'flows.editor.save': 'Guardar',
@@ -4438,6 +4439,9 @@ const messages: TranslationMap = {
   'flows.nodeConfig.memory.limitHint': 'Número máximo de resultados.',
   'flows.nodeConfig.memory.minScoreLabel': 'Puntuación mínima',
   'flows.nodeConfig.memory.minScoreHint': 'Umbral de relevancia de 0 a 1.',
+  'flows.nodeConfig.dedup.keyLabel': 'Clave',
+  'flows.nodeConfig.dedup.keyHint':
+    'Una expresión de id estable por elemento, p. ej. =item.id. Los elementos con una clave ya vista se omiten.',
 
   'flows.enableApproval.title': '¿Permitir que este flujo de trabajo actúe?',
   'flows.enableApproval.intro':
diff --git a/app/src/lib/i18n/fr.ts b/app/src/lib/i18n/fr.ts
index b1c8d7bee..08522edd2 100644
--- a/app/src/lib/i18n/fr.ts
+++ b/app/src/lib/i18n/fr.ts
@@ -4292,6 +4292,7 @@ const messages: TranslationMap = {
   'flows.nodeKind.output_parser': 'Analyseur de sortie',
   'flows.nodeKind.sub_workflow': 'Sous-workflow',
   'flows.nodeKind.memory': 'Mémoire',
+  'flows.nodeKind.dedup': 'Déduplication',
   'flows.palette.title': 'Nœuds',
   'flows.palette.addNode': 'Ajouter un nœud {kind}',
   'flows.editor.save': 'Enregistrer',
@@ -4468,6 +4469,9 @@ const messages: TranslationMap = {
   'flows.nodeConfig.memory.limitHint': 'Nombre maximal de résultats.',
   'flows.nodeConfig.memory.minScoreLabel': 'Score minimal',
   'flows.nodeConfig.memory.minScoreHint': 'Seuil de pertinence de 0 à 1.',
+  'flows.nodeConfig.dedup.keyLabel': 'Clé',
+  'flows.nodeConfig.dedup.keyHint':
+    "Une expression d'identifiant stable par élément, ex. =item.id. Les éléments dont la clé a déjà été vue sont ignorés.",
 
   'flows.enableApproval.title': 'Autoriser ce workflow à agir ?',
   'flows.enableApproval.intro':
diff --git a/app/src/lib/i18n/hi.ts b/app/src/lib/i18n/hi.ts
index 7aee4eca1..b01b40842 100644
--- a/app/src/lib/i18n/hi.ts
+++ b/app/src/lib/i18n/hi.ts
@@ -4192,6 +4192,7 @@ const messages: TranslationMap = {
   'flows.nodeKind.output_parser': 'आउटपुट पार्सर',
   'flows.nodeKind.sub_workflow': 'सब-वर्कफ़्लो',
   'flows.nodeKind.memory': 'मेमोरी',
+  'flows.nodeKind.dedup': 'डुप्लिकेट हटाएं',
   'flows.palette.title': 'नोड',
   'flows.palette.addNode': '{kind} नोड जोड़ें',
   'flows.editor.save': 'सहेजें',
@@ -4362,6 +4363,9 @@ const messages: TranslationMap = {
   'flows.nodeConfig.memory.limitHint': 'अधिकतम परिणामों की संख्या।',
   'flows.nodeConfig.memory.minScoreLabel': 'न्यूनतम स्कोर',
   'flows.nodeConfig.memory.minScoreHint': '0 से 1 तक की प्रासंगिकता सीमा।',
+  'flows.nodeConfig.dedup.keyLabel': 'कुंजी',
+  'flows.nodeConfig.dedup.keyHint':
+    'प्रति आइटम एक स्थिर आईडी एक्सप्रेशन, जैसे =item.id। जिन आइटम की कुंजी पहले देखी जा चुकी है उन्हें छोड़ दिया जाता है।',
 
   'flows.enableApproval.title': 'क्या इस वर्कफ़्लो को काम करने की अनुमति दें?',
   'flows.enableApproval.intro':
diff --git a/app/src/lib/i18n/id.ts b/app/src/lib/i18n/id.ts
index 6f2f60411..c583042dd 100644
--- a/app/src/lib/i18n/id.ts
+++ b/app/src/lib/i18n/id.ts
@@ -4208,6 +4208,7 @@ const messages: TranslationMap = {
   'flows.nodeKind.output_parser': 'Pengurai keluaran',
   'flows.nodeKind.sub_workflow': 'Sub-alur kerja',
   'flows.nodeKind.memory': 'Memori',
+  'flows.nodeKind.dedup': 'Hapus duplikat',
   'flows.palette.title': 'Simpul',
   'flows.palette.addNode': 'Tambah simpul {kind}',
   'flows.editor.save': 'Simpan',
@@ -4380,6 +4381,9 @@ const messages: TranslationMap = {
   'flows.nodeConfig.memory.limitHint': 'Jumlah maksimum hasil.',
   'flows.nodeConfig.memory.minScoreLabel': 'Skor minimum',
   'flows.nodeConfig.memory.minScoreHint': 'Ambang batas relevansi dari 0 hingga 1.',
+  'flows.nodeConfig.dedup.keyLabel': 'Kunci',
+  'flows.nodeConfig.dedup.keyHint':
+    'Ekspresi id stabil per item, mis. =item.id. Item dengan kunci yang sudah pernah dilihat akan dilewati.',
 
   'flows.enableApproval.title': 'Izinkan alur kerja ini bertindak?',
   'flows.enableApproval.intro':
diff --git a/app/src/lib/i18n/it.ts b/app/src/lib/i18n/it.ts
index 23902f498..333ad9088 100644
--- a/app/src/lib/i18n/it.ts
+++ b/app/src/lib/i18n/it.ts
@@ -4260,6 +4260,7 @@ const messages: TranslationMap = {
   'flows.nodeKind.output_parser': 'Analizzatore di output',
   'flows.nodeKind.sub_workflow': 'Sotto-flusso di lavoro',
   'flows.nodeKind.memory': 'Memoria',
+  'flows.nodeKind.dedup': 'Deduplicazione',
   'flows.palette.title': 'Nodi',
   'flows.palette.addNode': 'Aggiungi nodo {kind}',
   'flows.editor.save': 'Salva',
@@ -4436,6 +4437,9 @@ const messages: TranslationMap = {
   'flows.nodeConfig.memory.limitHint': 'Numero massimo di risultati.',
   'flows.nodeConfig.memory.minScoreLabel': 'Punteggio minimo',
   'flows.nodeConfig.memory.minScoreHint': 'Soglia di rilevanza da 0 a 1.',
+  'flows.nodeConfig.dedup.keyLabel': 'Chiave',
+  'flows.nodeConfig.dedup.keyHint':
+    "Un'espressione id stabile per elemento, es. =item.id. Gli elementi con una chiave già vista vengono ignorati.",
 
   'flows.enableApproval.title': 'Consentire a questo workflow di agire?',
   'flows.enableApproval.intro':
diff --git a/app/src/lib/i18n/ko.ts b/app/src/lib/i18n/ko.ts
index 108e8cb40..6f9315b7d 100644
--- a/app/src/lib/i18n/ko.ts
+++ b/app/src/lib/i18n/ko.ts
@@ -4145,6 +4145,7 @@ const messages: TranslationMap = {
   'flows.nodeKind.output_parser': '출력 파서',
   'flows.nodeKind.sub_workflow': '하위 워크플로',
   'flows.nodeKind.memory': '메모리',
+  'flows.nodeKind.dedup': '중복 제거',
   'flows.palette.title': '노드',
   'flows.palette.addNode': '{kind} 노드 추가',
   'flows.editor.save': '저장',
@@ -4313,6 +4314,9 @@ const messages: TranslationMap = {
   'flows.nodeConfig.memory.limitHint': '최대 결과 수입니다.',
   'flows.nodeConfig.memory.minScoreLabel': '최소 점수',
   'flows.nodeConfig.memory.minScoreHint': '0에서 1 사이의 관련성 임곗값입니다.',
+  'flows.nodeConfig.dedup.keyLabel': '키',
+  'flows.nodeConfig.dedup.keyHint':
+    '항목별 안정적인 id 표현식입니다. 예: =item.id. 이미 본 키를 가진 항목은 건너뜁니다.',
 
   'flows.enableApproval.title': '이 워크플로가 작업을 수행하도록 허용할까요?',
   'flows.enableApproval.intro':
diff --git a/app/src/lib/i18n/pl.ts b/app/src/lib/i18n/pl.ts
index b67ae0586..a2c2cf4c3 100644
--- a/app/src/lib/i18n/pl.ts
+++ b/app/src/lib/i18n/pl.ts
@@ -4249,6 +4249,7 @@ const messages: TranslationMap = {
   'flows.nodeKind.output_parser': 'Parser wyjścia',
   'flows.nodeKind.sub_workflow': 'Podprzepływ pracy',
   'flows.nodeKind.memory': 'Pamięć',
+  'flows.nodeKind.dedup': 'Deduplikacja',
   'flows.palette.title': 'Węzły',
   'flows.palette.addNode': 'Dodaj węzeł {kind}',
   'flows.editor.save': 'Zapisz',
@@ -4422,6 +4423,9 @@ const messages: TranslationMap = {
   'flows.nodeConfig.memory.limitHint': 'Maksymalna liczba wyników.',
   'flows.nodeConfig.memory.minScoreLabel': 'Minimalny wynik',
   'flows.nodeConfig.memory.minScoreHint': 'Próg trafności od 0 do 1.',
+  'flows.nodeConfig.dedup.keyLabel': 'Klucz',
+  'flows.nodeConfig.dedup.keyHint':
+    'Stabilne wyrażenie identyfikatora dla każdego elementu, np. =item.id. Elementy z już widzianym kluczem są pomijane.',
 
   'flows.enableApproval.title': 'Zezwolić temu przepływowi pracy na działanie?',
   'flows.enableApproval.intro':
diff --git a/app/src/lib/i18n/pt.ts b/app/src/lib/i18n/pt.ts
index 75bebb4bb..320b22c41 100644
--- a/app/src/lib/i18n/pt.ts
+++ b/app/src/lib/i18n/pt.ts
@@ -4253,6 +4253,7 @@ const messages: TranslationMap = {
   'flows.nodeKind.output_parser': 'Analisador de saída',
   'flows.nodeKind.sub_workflow': 'Subfluxo de trabalho',
   'flows.nodeKind.memory': 'Memória',
+  'flows.nodeKind.dedup': 'Deduplicação',
   'flows.palette.title': 'Nós',
   'flows.palette.addNode': 'Adicionar nó {kind}',
   'flows.editor.save': 'Salvar',
@@ -4426,6 +4427,9 @@ const messages: TranslationMap = {
   'flows.nodeConfig.memory.limitHint': 'Número máximo de resultados.',
   'flows.nodeConfig.memory.minScoreLabel': 'Pontuação mínima',
   'flows.nodeConfig.memory.minScoreHint': 'Limite de relevância de 0 a 1.',
+  'flows.nodeConfig.dedup.keyLabel': 'Chave',
+  'flows.nodeConfig.dedup.keyHint':
+    'Uma expressão de id estável por item, ex.: =item.id. Itens com uma chave já vista são ignorados.',
 
   'flows.enableApproval.title': 'Permitir que este fluxo de trabalho aja?',
   'flows.enableApproval.intro':
diff --git a/app/src/lib/i18n/ru.ts b/app/src/lib/i18n/ru.ts
index 18af023f5..05f46b567 100644
--- a/app/src/lib/i18n/ru.ts
+++ b/app/src/lib/i18n/ru.ts
@@ -4231,6 +4231,7 @@ const messages: TranslationMap = {
   'flows.nodeKind.output_parser': 'Парсер вывода',
   'flows.nodeKind.sub_workflow': 'Подпроцесс',
   'flows.nodeKind.memory': 'Память',
+  'flows.nodeKind.dedup': 'Дедупликация',
   'flows.palette.title': 'Узлы',
   'flows.palette.addNode': 'Добавить узел {kind}',
   'flows.editor.save': 'Сохранить',
@@ -4406,6 +4407,9 @@ const messages: TranslationMap = {
   'flows.nodeConfig.memory.limitHint': 'Максимальное количество результатов.',
   'flows.nodeConfig.memory.minScoreLabel': 'Минимальная оценка',
   'flows.nodeConfig.memory.minScoreHint': 'Порог релевантности от 0 до 1.',
+  'flows.nodeConfig.dedup.keyLabel': 'Ключ',
+  'flows.nodeConfig.dedup.keyHint':
+    'Стабильное выражение id для каждого элемента, напр. =item.id. Элементы с уже встреченным ключом пропускаются.',
 
   'flows.enableApproval.title': 'Разрешить этому рабочему процессу действовать?',
   'flows.enableApproval.intro':
diff --git a/app/src/lib/i18n/zh-CN.ts b/app/src/lib/i18n/zh-CN.ts
index 164c74747..13ae5076d 100644
--- a/app/src/lib/i18n/zh-CN.ts
+++ b/app/src/lib/i18n/zh-CN.ts
@@ -3973,6 +3973,7 @@ const messages: TranslationMap = {
   'flows.nodeKind.output_parser': '输出解析器',
   'flows.nodeKind.sub_workflow': '子工作流',
   'flows.nodeKind.memory': '记忆',
+  'flows.nodeKind.dedup': '去重',
   'flows.palette.title': '节点',
   'flows.palette.addNode': '添加{kind}节点',
   'flows.editor.save': '保存',
@@ -4134,6 +4135,9 @@ const messages: TranslationMap = {
   'flows.nodeConfig.memory.limitHint': '返回结果的最大数量。',
   'flows.nodeConfig.memory.minScoreLabel': '最低分数',
   'flows.nodeConfig.memory.minScoreHint': '相关性阈值，范围为 0 到 1。',
+  'flows.nodeConfig.dedup.keyLabel': '键',
+  'flows.nodeConfig.dedup.keyHint':
+    '每个项目的稳定 id 表达式，例如 =item.id。已出现过该键的项目将被跳过。',
 
   'flows.enableApproval.title': '允许此工作流执行操作吗？',
   'flows.enableApproval.intro': '此工作流需要您对以下操作的许可。批准仅适用于此工作流。',