diff --git a/package-lock.json b/package-lock.json
index 6743536f1..2f8142e30 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -21423,6 +21423,7 @@
         "input-otp": "^1.4.2",
         "lucide-react": "^0.577.0",
         "react-day-picker": "^9.14.0",
+        "react-hook-form": "^7.80.0",
         "react-resizable-panels": "^4.12.0",
         "recharts": "^2.15.4",
         "sonner": "^2.0.7",
diff --git a/packages/loopover-ui-kit/package.json b/packages/loopover-ui-kit/package.json
index 8afcebcb9..16b376398 100644
--- a/packages/loopover-ui-kit/package.json
+++ b/packages/loopover-ui-kit/package.json
@@ -86,6 +86,7 @@
     "input-otp": "^1.4.2",
     "lucide-react": "^0.577.0",
     "react-day-picker": "^9.14.0",
+    "react-hook-form": "^7.80.0",
     "react-resizable-panels": "^4.12.0",
     "recharts": "^2.15.4",
     "sonner": "^2.0.7",
diff --git a/test/unit/ui-kit-manifest-dependencies.test.ts b/test/unit/ui-kit-manifest-dependencies.test.ts
new file mode 100644
index 000000000..0fb6ac55a
--- /dev/null
+++ b/test/unit/ui-kit-manifest-dependencies.test.ts
@@ -0,0 +1,63 @@
+import { readFileSync, readdirSync } from "node:fs";
+import { join } from "node:path";
+
+// #8309: @loopover/ui-kit is a real, published npm package (publishConfig.access: "public") -- every
+// component that wraps an external library must declare that library in its own package.json, since a
+// consumer installing the package in isolation (or a workspace member that doesn't happen to hoist the
+// dependency from elsewhere, e.g. loopover-miner-ui) has no other guarantee module resolution succeeds.
+// This asserts every external import across the package's (non-test) components has a matching
+// dependencies/peerDependencies entry, so a future component that forgets to declare its import is
+// caught here instead of only failing for a consumer outside this monorepo's hoisting.
+
+const COMPONENTS_DIR = join("packages", "loopover-ui-kit", "src", "components");
+
+function packageNameFromSpecifier(specifier: string): string {
+  const segments = specifier.split("/");
+  // Scoped package (@scope/name) -- the package name is the first two path segments; everything else
+  // (unscoped, e.g. "lucide-react", or a subpath import like "some-pkg/sub") is just the first segment.
+  return specifier.startsWith("@")
+    ? segments.slice(0, 2).join("/")
+    : (segments[0] ?? specifier);
+}
+
+function externalImportsIn(source: string): string[] {
+  const specifiers: string[] = [];
+  for (const match of source.matchAll(
+    /import\s[\s\S]*?from\s+["']([^"']+)["']/g,
+  )) {
+    const specifier = match[1];
+    if (specifier && !specifier.startsWith("."))
+      specifiers.push(packageNameFromSpecifier(specifier));
+  }
+  return specifiers;
+}
+
+describe("packages/loopover-ui-kit package.json declares every component's external imports (#8309)", () => {
+  it("every non-test component's external import has a dependencies or peerDependencies entry", () => {
+    const pkg = JSON.parse(
+      readFileSync(join("packages", "loopover-ui-kit", "package.json"), "utf8"),
+    ) as {
+      dependencies?: Record<string, string>;
+      peerDependencies?: Record<string, string>;
+    };
+    const declared = new Set([
+      ...Object.keys(pkg.dependencies ?? {}),
+      ...Object.keys(pkg.peerDependencies ?? {}),
+    ]);
+
+    const componentFiles = readdirSync(COMPONENTS_DIR).filter(
+      (name) => name.endsWith(".tsx") && !name.endsWith(".test.tsx"),
+    );
+    expect(componentFiles.length).toBeGreaterThan(0); // guard against a glob/path typo silently checking nothing
+
+    const undeclared: string[] = [];
+    for (const file of componentFiles) {
+      const source = readFileSync(join(COMPONENTS_DIR, file), "utf8");
+      for (const importedPackage of externalImportsIn(source)) {
+        if (!declared.has(importedPackage))
+          undeclared.push(`${file}: ${importedPackage}`);
+      }
+    }
+    expect(undeclared).toEqual([]);
+  });
+});