Add HyperFrames skills (from heygen-com/hyperframes, Apache-2.0)

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01FXVsD1DgdzZLiPuwtKzMSY
2026-10-21 23:18:32 +00:00
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+import {
+  readFileSync,
+  appendFileSync,
+  mkdirSync,
+  existsSync,
+  readdirSync,
+  openSync,
+  closeSync,
+  writeFileSync,
+  rmSync,
+  statSync,
+} from "node:fs";
+import { randomBytes } from "node:crypto";
+import { basename, join } from "node:path";
+
+const MANIFEST_FILE = "manifest.jsonl";
+const INDEX_FILE = "index.md";
+
+const TYPE_DIRS = {
+  bgm: "audio/bgm",
+  sfx: "audio/sfx",
+  voice: "audio/voice",
+  image: "images",
+  icon: "images",
+  logo: "images",
+  brand: "images",
+  video: "video",
+  grade: "luts",
+  lut: "luts",
+  recipe: "recipes",
+};
+
+export function mediaDir(projectDir) {
+  return join(projectDir, ".media");
+}
+
+export function manifestPath(projectDir) {
+  return join(mediaDir(projectDir), MANIFEST_FILE);
+}
+
+export function indexPath(projectDir) {
+  return join(mediaDir(projectDir), INDEX_FILE);
+}
+
+export function typeSubdir(type) {
+  const sub = TYPE_DIRS[type];
+  if (!sub) throw new Error(`unknown media type: ${type}`);
+  return sub;
+}
+
+export function typeDirPath(projectDir, type) {
+  return join(mediaDir(projectDir), typeSubdir(type));
+}
+
+export function readManifest(projectDir) {
+  const p = manifestPath(projectDir);
+  if (!existsSync(p)) return [];
+  const raw = readFileSync(p, "utf8");
+  const records = [];
+  for (const line of raw.split(/\r?\n/)) {
+    const trimmed = line.trim();
+    if (!trimmed) continue;
+    try {
+      records.push(JSON.parse(trimmed));
+    } catch {
+      // ponytail: skip malformed lines, don't crash
+    }
+  }
+  return records;
+}
+
+export function appendRecord(projectDir, record) {
+  const dir = mediaDir(projectDir);
+  mkdirSync(dir, { recursive: true });
+  const typeDir = typeDirPath(projectDir, record.type);
+  mkdirSync(typeDir, { recursive: true });
+
+  const p = manifestPath(projectDir);
+  const line = JSON.stringify(record) + "\n";
+  appendFileSync(p, line);
+}
+
+/** Sources that mean the agent made or fetched the file; any other file is the person's own. */
+export const AGENT_SOURCES = ["generated", "search", "bundled"];
+
+/** The record a path has now: the manifest only appends, so the last one for a path wins. */
+export function latestRecordFor(projectDir, path) {
+  return readManifest(projectDir).findLast((record) => record.path === path);
+}
+
+/** Records with every older record for the same path dropped, since the last one for a path is its record. */
+export function currentRecords(projectDir) {
+  const records = readManifest(projectDir);
+  const last = new Map(records.map((record, index) => [record.path, index]));
+  return records.filter((record, index) => !record.path || last.get(record.path) === index);
+}
+
+/** Records a file already in the project where it is, unless its current record already says the same thing. */
+export function recordInPlace(
+  projectDir,
+  { type, path, source, description, duration, provenance },
+) {
+  const fields = {
+    type,
+    path,
+    source,
+    description: description || basename(path),
+    ...(duration != null && { duration: Math.round(duration * 10) / 10 }),
+  };
+  return withMediaLock(projectDir, () => {
+    const latest = latestRecordFor(projectDir, path);
+    const same = ["source", "description", "duration"].every(
+      (key) => latest?.[key] === fields[key],
+    );
+    if (latest && same) return latest;
+    const record = { id: nextFreeId(projectDir, type), ...fields, provenance };
+    appendRecord(projectDir, record);
+    return record;
+  });
+}
+
+// Match prompts forgivingly. Agents rarely re-emit a byte-identical intent, so
+// keying cache lookups on exact equality meant "Calm piano" and "calm  piano"
+// re-searched and re-downloaded. Normalize (trim, lowercase, collapse internal
+// whitespace) on both sides; the raw prompt is still stored for audit.
+export function normalizePrompt(prompt) {
+  return String(prompt ?? "")
+    .trim()
+    .toLowerCase()
+    .replace(/\s+/g, " ");
+}
+
+export function findByPrompt(projectDir, prompt, type) {
+  const key = normalizePrompt(prompt);
+  if (!key) return null;
+  const records = currentRecords(projectDir);
+  return (
+    records.find(
+      (r) => normalizePrompt(r.provenance?.prompt) === key && (type == null || r.type === type),
+    ) || null
+  );
+}
+
+export function findByEntity(projectDir, entity) {
+  const lower = entity.toLowerCase();
+  const records = currentRecords(projectDir);
+  return records.find((r) => r.entity && r.entity.toLowerCase() === lower) || null;
+}
+
+export function nextId(projectDir, type) {
+  const records = readManifest(projectDir);
+  const prefix = type;
+  let max = 0;
+  for (const r of records) {
+    if (r.type !== type) continue;
+    const m = r.id?.match(new RegExp(`^${prefix}_(\\d+)$`));
+    if (m) max = Math.max(max, parseInt(m[1], 10));
+  }
+  return `${prefix}_${String(max + 1).padStart(3, "0")}`;
+}
+
+// Sync sleep (no busy-spin) for the allocation lock retry.
+function sleepMs(ms) {
+  Atomics.wait(new Int32Array(new SharedArrayBuffer(4)), 0, 0, ms);
+}
+
+// Coarse per-project lock so concurrent resolves don't race on id allocation.
+// ponytail: one lock file with a 15s stale-steal (a crashed holder can't wedge
+// the project); fine for agent-scale concurrency — revisit if throughput needs
+// finer locking. Date.now() is available here (a normal Node CLI, not a
+// workflow DSL), so mtime-based staleness is safe.
+const LOCK_STALE_MS = 15000;
+const LOCK_TIMEOUT_MS = 20000;
+
+function withLock(dir, fn) {
+  const lock = join(dir, ".lock");
+  const start = Date.now();
+  for (;;) {
+    try {
+      closeSync(openSync(lock, "wx")); // O_EXCL: atomic acquire
+      break;
+    } catch (err) {
+      if (err.code !== "EEXIST") throw err;
+      try {
+        if (Date.now() - statSync(lock).mtimeMs > LOCK_STALE_MS) {
+          rmSync(lock, { force: true }); // steal a stale lock from a dead holder
+          continue;
+        }
+      } catch {
+        continue; // lock vanished between check and stat — retry the acquire
+      }
+      if (Date.now() - start > LOCK_TIMEOUT_MS) {
+        throw new Error("media-use: timed out acquiring .media/.lock");
+      }
+      sleepMs(25);
+    }
+  }
+  try {
+    return fn();
+  } finally {
+    rmSync(lock, { force: true });
+  }
+}
+
+/** Runs `fn` holding the project's `.media/.lock`, so concurrent resolves take turns on what it guards. */
+export function withMediaLock(projectDir, fn) {
+  mkdirSync(mediaDir(projectDir), { recursive: true });
+  return withLock(mediaDir(projectDir), fn);
+}
+
+// Atomically allocate the next free id for `type` AND reserve it on disk, so a
+// slow download/copy between allocation and appendRecord can't let a concurrent
+// caller grab the same id (the MU-23 clobber). Under the lock we take the max id
+// across BOTH the manifest and any already-reserved files in the type dir, then
+// O_EXCL-create an empty marker under core's atomic temp name, which Studio's
+// project history skips. Returns { id, localPath, markerPath }.
+export function allocateId(projectDir, type, ext) {
+  mkdirSync(typeDirPath(projectDir, type), { recursive: true });
+  return withMediaLock(projectDir, () => {
+    const id = nextFreeId(projectDir, type);
+    const localPath = `.media/${typeSubdir(type)}/${id}${ext}`;
+    // Same shape as core atomicTempPath: an empty file at the final name would be committed.
+    const markerPath = `${join(projectDir, localPath)}.hf${randomBytes(3).toString("hex")}.tmp`;
+    writeFileSync(markerPath, "", { flag: "wx" }); // durable reservation
+    return { id, localPath, markerPath };
+  });
+}
+
+// Call under the lock: counts recorded ids and ids reserved by a file not yet recorded.
+function nextFreeId(projectDir, type) {
+  const re = new RegExp(`^${type}_(\\d+)`);
+  let max = 0;
+  for (const r of readManifest(projectDir)) {
+    if (r.type !== type) continue;
+    const m = r.id?.match(re);
+    if (m) max = Math.max(max, parseInt(m[1], 10));
+  }
+  const typeDir = typeDirPath(projectDir, type);
+  for (const f of existsSync(typeDir) ? readdirSync(typeDir) : []) {
+    const m = f.match(re);
+    if (m) max = Math.max(max, parseInt(m[1], 10));
+  }
+  return `${type}_${String(max + 1).padStart(3, "0")}`;
+}
+
+function reservedFile(projectDir, type, ext) {
+  const allocation = allocateId(projectDir, type, ext);
+  return { ...allocation, fullPath: join(projectDir, allocation.localPath) };
+}
+
+function releaseReservation(reservation, committed) {
+  if (!committed) rmSync(reservation.fullPath, { force: true });
+  rmSync(reservation.markerPath, { force: true });
+}
+
+// A reservation is committed only when populate returns a non-null value.
+// Throwing/rejecting or returning null means no usable asset was produced, so
+// the reservation and any partial asset are released. Keeping this transaction
+// beside allocateId prevents provider/cache/LUT paths from forgetting the rollback.
+export function withReservedFileSync(projectDir, type, ext, populate) {
+  const reservation = reservedFile(projectDir, type, ext);
+  try {
+    const result = populate(reservation);
+    releaseReservation(reservation, result != null);
+    return result;
+  } catch (error) {
+    releaseReservation(reservation, false);
+    throw error;
+  }
+}
+
+export async function withReservedFile(projectDir, type, ext, populate) {
+  const reservation = reservedFile(projectDir, type, ext);
+  try {
+    const result = await populate(reservation);
+    releaseReservation(reservation, result != null);
+    return result;
+  } catch (error) {
+    releaseReservation(reservation, false);
+    throw error;
+  }
+}