diff --git a/changelog.d/fixes/12549-i18n-escape-raw-name-tag-12505.md b/changelog.d/fixes/12549-i18n-escape-raw-name-tag-12505.md
new file mode 100644
index 0000000000..6de3771893
--- /dev/null
+++ b/changelog.d/fixes/12549-i18n-escape-raw-name-tag-12505.md
@@ -0,0 +1 @@
+- **fix(i18n):** Wrap the `~/.claude/profiles/<name>/settings.json` placeholder in ICU single quotes in the `OMNIROUTE_AUTO_SYNC_CLAUDE_PROFILES` feature-flag description across all 42 locales and the TypeScript default, so next-intl no longer fails with `INVALID_MESSAGE: UNCLOSED_TAG` and the Feature Flags card shows the description instead of the raw key (#12549 — thanks @pacocartones)
diff --git a/src/shared/constants/featureFlagDefinitions.ts b/src/shared/constants/featureFlagDefinitions.ts
index 88ace23020..8271d21c5b 100644
--- a/src/shared/constants/featureFlagDefinitions.ts
+++ b/src/shared/constants/featureFlagDefinitions.ts
@@ -622,7 +622,7 @@ export const FEATURE_FLAG_DEFINITIONS: FeatureFlagDefinition[] = [
     key: "OMNIROUTE_AUTO_SYNC_CLAUDE_PROFILES",
     label: "Auto-Sync Claude Code Profiles",
     description:
-      "After a provider model sync, automatically (re)write ~/.claude/profiles/<name>/settings.json Claude Code profiles from the live catalog. Never changes the active/default Claude config. Off by default.",
+      "After a provider model sync, automatically (re)write ~/.claude/profiles/'<name>'/settings.json Claude Code profiles from the live catalog. Never changes the active/default Claude config. Off by default.",
     descriptionI18nKey: "featureFlagOmnirouteAutoSyncClaudeProfilesDescription",
     category: "cli",
     defaultValue: "false",
diff --git a/tests/unit/i18n-feature-flag-auto-sync-profiles-tag-12505.test.ts b/tests/unit/i18n-feature-flag-auto-sync-profiles-tag-12505.test.ts
new file mode 100644
index 0000000000..12beeb7119
--- /dev/null
+++ b/tests/unit/i18n-feature-flag-auto-sync-profiles-tag-12505.test.ts
@@ -0,0 +1,135 @@
+import { describe, it } from "node:test";
+import assert from "node:assert/strict";
+import fs from "node:fs";
+import path from "node:path";
+import { parse } from "@formatjs/icu-messageformat-parser";
+import { createTranslator } from "next-intl";
+import i18nConfig from "../../config/i18n.json" with { type: "json" };
+
+const { FEATURE_FLAG_DEFINITIONS } =
+  await import("../../src/shared/constants/featureFlagDefinitions.ts");
+
+const MESSAGES_DIR = path.resolve("src/i18n/messages");
+const FLAG_KEY = "OMNIROUTE_AUTO_SYNC_CLAUDE_PROFILES";
+const MESSAGE_KEY = `definitions.${FLAG_KEY}.description`;
+const RAW_PATH = "profiles/<name>/";
+const QUOTED_PATH = "profiles/'<name>'/";
+const ENTITY_PATH = "profiles/&lt;name&gt;/";
+const RENDERED_PATH = "~/.claude/profiles/<name>/settings.json";
+
+/**
+ * Regression guard for #12505 (INVALID_MESSAGE: UNCLOSED_TAG on the Feature
+ * Flags page). The `featureFlags.definitions.OMNIROUTE_AUTO_SYNC_CLAUDE_PROFILES.description`
+ * message carried a literal `~/.claude/profiles/<name>/settings.json` path.
+ * next-intl parses `<name>` as a rich-text tag, no tag element is ever passed
+ * by `FeatureFlagsGrid.tsx` (plain `t()`), so the message failed to compile and
+ * the card fell back to the raw key in every locale.
+ *
+ * Fix: the placeholder is wrapped in ICU single quotes (`'<name>'`) so the
+ * angle brackets render literally. HTML entities are not an option here: the
+ * value is a real file path shown to the user, and `t()` returns entities
+ * verbatim (`&lt;name&gt;` would be displayed as-is).
+ */
+
+function flatten(obj: Record<string, unknown>, prefix = ""): Record<string, unknown> {
+  const out: Record<string, unknown> = {};
+  for (const k of Object.keys(obj)) {
+    const key = prefix ? `${prefix}.${k}` : k;
+    const v = obj[k];
+    if (v && typeof v === "object" && !Array.isArray(v)) {
+      Object.assign(out, flatten(v as Record<string, unknown>, key));
+    } else {
+      out[key] = v;
+    }
+  }
+  return out;
+}
+
+describe(`i18n — ${FLAG_KEY} description UNCLOSED_TAG regression (#12505)`, () => {
+  const localeFiles = fs
+    .readdirSync(MESSAGES_DIR)
+    .filter((f) => f.endsWith(".json"))
+    .sort();
+  const expectedCount = i18nConfig.locales.length;
+
+  function readDescription(file: string): string {
+    const raw = fs.readFileSync(path.join(MESSAGES_DIR, file), "utf8");
+    assert.notEqual(raw.charCodeAt(0), 0xfeff, `${file}: starts with BOM (U+FEFF)`);
+    const flat = flatten(JSON.parse(raw) as Record<string, unknown>);
+    const value = flat[`featureFlags.${MESSAGE_KEY}`];
+    assert.equal(typeof value, "string", `${file}: featureFlags.${MESSAGE_KEY} must be a string`);
+    return value as string;
+  }
+
+  it(`the description exists in all ${expectedCount} locales`, () => {
+    assert.equal(localeFiles.length, expectedCount);
+    for (const file of localeFiles) {
+      readDescription(file);
+    }
+  });
+
+  it("every locale value parses as an ICU message (no unclosed tag)", () => {
+    const failures: string[] = [];
+    for (const file of localeFiles) {
+      try {
+        parse(readDescription(file), { captureLocation: false, shouldParseSkeletons: true });
+      } catch (error) {
+        failures.push(`${file}: ${error instanceof Error ? error.message : String(error)}`);
+      }
+    }
+    assert.deepEqual(failures, [], `ICU parse failures: ${failures.slice(0, 5).join("; ")}`);
+  });
+
+  it("every locale wraps the profile path placeholder in ICU single quotes", () => {
+    const offenders: string[] = [];
+    for (const file of localeFiles) {
+      const value = readDescription(file);
+      if (value.includes(RAW_PATH)) offenders.push(`${file}: raw ${RAW_PATH}`);
+      if (value.includes(ENTITY_PATH)) offenders.push(`${file}: entity ${ENTITY_PATH}`);
+      if (!value.includes(QUOTED_PATH)) offenders.push(`${file}: missing ${QUOTED_PATH}`);
+    }
+    assert.deepEqual(offenders, [], offenders.slice(0, 10).join(", "));
+  });
+
+  it("createTranslator renders the literal path in every locale without INVALID_MESSAGE", () => {
+    const errors: string[] = [];
+    const wrong: string[] = [];
+    for (const file of localeFiles) {
+      const locale = file.replace(/\.json$/, "");
+      const messages = JSON.parse(fs.readFileSync(path.join(MESSAGES_DIR, file), "utf8"));
+      const t = createTranslator({
+        locale,
+        messages,
+        namespace: "featureFlags",
+        onError: (err: { code?: string; originalMessage?: string; message?: string }) => {
+          errors.push(`${locale}: ${err.code}: ${err.originalMessage ?? err.message}`);
+        },
+      });
+      assert.ok(t.has(MESSAGE_KEY), `${locale}: t.has(${MESSAGE_KEY}) must be true`);
+      const rendered = t(MESSAGE_KEY);
+      if (!rendered.includes(RENDERED_PATH)) {
+        wrong.push(`${locale}: ${rendered.slice(0, 80)}`);
+      }
+    }
+    assert.deepEqual(errors, [], `next-intl errors: ${errors.slice(0, 5).join("; ")}`);
+    assert.deepEqual(
+      wrong,
+      [],
+      `rendered text lost the literal path: ${wrong.slice(0, 5).join("; ")}`
+    );
+  });
+
+  it("the TypeScript default description parses and uses the same quoting", () => {
+    const flag = FEATURE_FLAG_DEFINITIONS.find((f) => f.key === FLAG_KEY);
+    assert.ok(flag, `${FLAG_KEY} must be defined`);
+    assert.doesNotThrow(() =>
+      parse(flag.description, { captureLocation: false, shouldParseSkeletons: true })
+    );
+    assert.ok(flag.description.includes(QUOTED_PATH), `default must contain ${QUOTED_PATH}`);
+    assert.equal(
+      flag.description.includes(RAW_PATH),
+      false,
+      `default must not contain ${RAW_PATH}`
+    );
+  });
+});