Add HyperFrames skills

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_011h6NB8JQtfPc6eRCefEzBB

.agents/skills/media-use/audio/scripts/lib/gemini-auth.mjs

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+import { spawnSync } from "node:child_process";
+import { fileURLToPath } from "node:url";
+import { pythonInvocation } from "./python.mjs";
+
+export function geminiConfigured() {
+  return Boolean(
+    process.env.GEMINI_API_KEY ||
+    process.env.GOOGLE_API_KEY ||
+    process.env.GOOGLE_APPLICATION_CREDENTIALS ||
+    process.env.GCS_CREDS,
+  );
+}
+
+export function geminiAuth({ run = spawnSync } = {}) {
+  const key = process.env.GEMINI_API_KEY || process.env.GOOGLE_API_KEY;
+  if (key) return { headers: { "x-goog-api-key": key }, secret: key };
+  if (!geminiConfigured()) {
+    throw new Error(
+      "Gemini TTS needs GEMINI_API_KEY or GOOGLE_API_KEY, or service-account credentials (GOOGLE_APPLICATION_CREDENTIALS or GCS_CREDS)",
+    );
+  }
+  const { cmd, args } = pythonInvocation([
+    fileURLToPath(new URL("./gemini-auth.py", import.meta.url)),
+  ]);
+  const result = run(cmd, args, { encoding: "utf8", timeout: 60_000, maxBuffer: 1024 * 1024 });
+  let data;
+  try {
+    data = JSON.parse(result.stdout);
+  } catch {
+    throw new Error(
+      "Gemini service-account authentication failed; check Python and install google-auth requests",
+    );
+  }
+  if (result.status !== 0 || !data.token) {
+    // Do not echo subprocess output: it could contain credentials.
+    throw new Error(
+      "Gemini service-account authentication failed; check service-account JSON, permissions, and Python packages google-auth requests",
+    );
+  }
+  const headers = { Authorization: `Bearer ${data.token}` };
+  if (data.project) headers["x-goog-user-project"] = data.project;
+  return { headers, secret: data.token };
+}