feat(skills,studio,media-use): the intent layer, review loop, and user memory — BRIEF.md, companion mode, recipes; /website-to-video folds into /product-launch-video

packages/cli/src/commands/preview.test.ts

@@ -0,0 +1,53 @@
+import { mkdirSync, mkdtempSync, rmSync, writeFileSync } from "node:fs";
+import { tmpdir } from "node:os";
+import { join } from "node:path";
+import { afterEach, describe, expect, it } from "vitest";
+import { studioLandingSearch } from "./preview.js";
+
+const tempDirs: string[] = [];
+
+afterEach(() => {
+  for (const dir of tempDirs.splice(0)) rmSync(dir, { recursive: true, force: true });
+});
+
+function projectWith(storyboard: string | null, frameFiles: string[] = []): string {
+  const dir = mkdtempSync(join(tmpdir(), "hf-preview-landing-"));
+  tempDirs.push(dir);
+  if (storyboard !== null) writeFileSync(join(dir, "STORYBOARD.md"), storyboard);
+  for (const file of frameFiles) {
+    mkdirSync(join(dir, file, ".."), { recursive: true });
+    writeFileSync(join(dir, file), "<div></div>");
+  }
+  return dir;
+}
+
+const FRAME = (n: number, status: string) =>
+  `## Frame ${n} — F${n}\n- status: ${status}\n- src: compositions/frames/0${n}.html\n\nBeat.\n`;
+
+describe("studioLandingSearch", () => {
+  it("returns no search without a storyboard", () => {
+    expect(studioLandingSearch(projectWith(null))).toBe("");
+  });
+
+  it("lands on the board while sketches are under review (any built frame)", () => {
+    const dir = projectWith(`${FRAME(1, "built")}${FRAME(2, "outline")}`, [
+      "compositions/frames/01.html",
+    ]);
+    expect(studioLandingSearch(dir)).toBe("?view=storyboard");
+  });
+
+  it("lands on the board during pure planning (srcs declared, none exist)", () => {
+    const dir = projectWith(`${FRAME(1, "outline")}${FRAME(2, "outline")}`);
+    expect(studioLandingSearch(dir)).toBe("?view=storyboard");
+  });
+
+  it("lands on the timeline once frames exist without a built status", () => {
+    const dir = projectWith(`${FRAME(1, "outline")}`, ["compositions/frames/01.html"]);
+    expect(studioLandingSearch(dir)).toBe("");
+  });
+
+  it("lands on the timeline for fully animated boards", () => {
+    const dir = projectWith(`${FRAME(1, "animated")}`, ["compositions/frames/01.html"]);
+    expect(studioLandingSearch(dir)).toBe("");
+  });
+});

packages/cli/src/commands/preview.ts

@@ -19,7 +19,16 @@ export const examples: Example[] = [
   ["List all active preview servers", "hyperframes preview --list"],
   ["Kill all active preview servers", "hyperframes preview --kill-all"],
 ];
-import { existsSync, lstatSync, symlinkSync, unlinkSync, readlinkSync, mkdirSync } from "node:fs";
+import {
+  existsSync,
+  lstatSync,
+  mkdirSync,
+  readFileSync,
+  readlinkSync,
+  symlinkSync,
+  unlinkSync,
+} from "node:fs";
+import { parseStoryboard, STORYBOARD_FILENAME } from "@hyperframes/core/storyboard";
 import { resolve, dirname, basename, join } from "node:path";
 import { fileURLToPath } from "node:url";
 import { createRequire } from "node:module";
@@ -635,9 +644,47 @@ function compactSelectionPayload(selection: StudioSelectionSnapshot): CompactSel
   };
 }
 
-function openStudioBrowser(url: string, projectName: string, options?: BrowserLaunchOptions): void {
+// Land the browser on the Storyboard view while the project is still planning
+// or sketching — the timeline only becomes the right landing once frames are
+// animated (or the storyboard never tracked statuses at all, e.g. beat plans).
+export function studioLandingSearch(projectDir: string): string {
+  const storyboardPath = join(projectDir, STORYBOARD_FILENAME);
+  if (!existsSync(storyboardPath)) return "";
+  let frames;
+  try {
+    frames = parseStoryboard(readFileSync(storyboardPath, "utf8")).frames;
+  } catch {
+    return "";
+  }
+  // Sketch review in progress — the board is the review surface.
+  if (frames.some((f) => f.status === "built")) return "?view=storyboard";
+  // Pure planning stage: frames declare src paths but none are built yet.
+  const srcs = frames
+    .map((f) => f.src)
+    .filter((s): s is string => typeof s === "string" && s.length > 0);
+  const planning =
+    frames.length > 0 &&
+    frames.every((f) => f.status === "outline") &&
+    srcs.length > 0 &&
+    !srcs.some((s) => existsSync(join(projectDir, s)));
+  return planning ? "?view=storyboard" : "";
+}
+
+// The full Studio URL to open or hand to the user: status-aware landing view
+// plus the project hash route. `url` never carries a trailing slash (both the
+// embedded server and the Vite `Local:` match strip it).
+function studioDeepLink(url: string, projectName: string, projectDir: string): string {
+  return `${url}/${studioLandingSearch(projectDir)}#project/${projectName}`;
+}
+
+function openStudioBrowser(
+  url: string,
+  projectName: string,
+  projectDir: string,
+  options?: BrowserLaunchOptions,
+): void {
   if (options?.noOpen) return;
-  openBrowser(`${url}#project/${projectName}`, {
+  openBrowser(studioDeepLink(url, projectName, projectDir), {
     browserPath: options?.browserPath,
     userDataDir: options?.userDataDir,
     remoteDebuggingPort: options?.remoteDebuggingPort,
@@ -719,6 +766,7 @@ function attachStudioReadyHandler(
   child: StudioChildProcess,
   spinner: ReturnType<typeof clack.spinner>,
   projectName: string,
+  projectDir: string,
   options?: BrowserLaunchOptions,
 ): void {
   let detected = false;
@@ -730,7 +778,7 @@ function attachStudioReadyHandler(
     detected = true;
     spinner.stop(c.success("Studio running"));
     printStudioSummary(projectName, url, { footer: "Press Ctrl+C to stop" });
-    openStudioBrowser(url, projectName, options);
+    openStudioBrowser(url, projectName, projectDir, options);
     child.stdout.removeListener("data", handleOutput);
     child.stderr.removeListener("data", handleOutput);
   }
@@ -768,7 +816,7 @@ async function runDevMode(dir: string, options?: StudioLaunchOptions): Promise<v
     stdio: ["ignore", "pipe", "pipe"],
   });
 
-  attachStudioReadyHandler(child, s, pName, options);
+  attachStudioReadyHandler(child, s, pName, dir, options);
   removeSymlinkOnExit(createdSymlink, symlinkPath);
 
   // Kill the child's entire process tree on SIGTERM/SIGINT. Ctrl+C sends
@@ -817,7 +865,7 @@ async function runLocalStudioMode(dir: string, options?: StudioLaunchOptions): P
     stdio: ["ignore", "pipe", "pipe"],
   });
 
-  attachStudioReadyHandler(child, s, pName, options);
+  attachStudioReadyHandler(child, s, pName, dir, options);
   removeSymlinkOnExit(createdSymlink, symlinkPath);
 
   // Same tree-kill handler as dev mode. No-op on Windows (see comment above).
@@ -888,7 +936,7 @@ async function runEmbeddedMode(
     printStudioSummary(pName, url, {
       details: ["Reusing existing server. Use --force-new to start a fresh instance."],
     });
-    openStudioBrowser(url, pName, options);
+    openStudioBrowser(url, pName, dir, options);
     return;
   }
 
@@ -906,7 +954,7 @@ async function runEmbeddedMode(
     ],
     footer: "Press Ctrl+C to stop",
   });
-  openStudioBrowser(url, pName, options);
+  openStudioBrowser(url, pName, dir, options);
 
   // Block until Ctrl+C. Node would normally exit on SIGINT, but the listening
   // HTTP server keeps handles open, so the event loop stays alive after the

packages/studio-server/src/helpers/projectSignature.ts

@@ -1,6 +1,7 @@
 import { createHash } from "node:crypto";
 import { lstatSync, readFileSync, readdirSync } from "node:fs";
 import { extname, isAbsolute, relative, resolve } from "node:path";
+import type { ResolvedProject, StudioApiAdapter } from "../types.js";
 
 const SIGNATURE_TEXT_EXTENSIONS = new Set([
   ".cjs",
@@ -137,6 +138,25 @@ function createProjectFingerprint(projectDir: string, files: ProjectSignatureFil
   return hash.digest("hex").slice(0, 24);
 }
 
+/**
+ * Resolve the project signature through the adapter's cached path when the host
+ * provides one (the CLI invalidates its cache from the file watcher), falling
+ * back to a direct computation.
+ */
+export function resolveProjectSignature(adapter: StudioApiAdapter, projectDir: string): string {
+  return adapter.getProjectSignature?.(projectDir) ?? createProjectSignature(projectDir);
+}
+
+/** The shared route opening: resolve the project (null → caller 404s) with its signature. */
+export async function resolveProjectAndSignature(
+  adapter: StudioApiAdapter,
+  projectId: string,
+): Promise<{ project: ResolvedProject; signature: string } | null> {
+  const project = await adapter.resolveProject(projectId);
+  if (!project) return null;
+  return { project, signature: resolveProjectSignature(adapter, project.dir) };
+}
+
 /**
  * Creates a stable preview cache-busting signature for project source plus Studio manifests.
  */

packages/studio-server/src/routes/preview.ts

@@ -7,7 +7,10 @@ import type { StudioApiAdapter } from "../types.js";
 import { resolveWithinProject } from "../helpers/safePath.js";
 import { getMimeType } from "../helpers/mime.js";
 import { buildSubCompositionHtml } from "../helpers/subComposition.js";
-import { createProjectSignature } from "../helpers/projectSignature.js";
+import {
+  resolveProjectAndSignature,
+  resolveProjectSignature,
+} from "../helpers/projectSignature.js";
 import {
   createStudioMotionRenderBodyScript,
   STUDIO_MOTION_PATH,
@@ -22,10 +25,6 @@ const GSAP_CDN_SCRIPT = `<script src="https://cdn.jsdelivr.net/npm/gsap@${GSAP_C
 const GSAP_CUSTOM_EASE_CDN_SCRIPT = `<script src="https://cdn.jsdelivr.net/npm/gsap@${GSAP_CDN_VERSION}/dist/CustomEase.min.js"></script>`;
 const GSAP_MOTION_PATH_CDN_SCRIPT = `<script src="https://cdn.jsdelivr.net/npm/gsap@${GSAP_CDN_VERSION}/dist/MotionPathPlugin.min.js"></script>`;
 
-function resolveProjectSignature(adapter: StudioApiAdapter, projectDir: string): string {
-  return adapter.getProjectSignature?.(projectDir) ?? createProjectSignature(projectDir);
-}
-
 function injectProjectSignature(html: string, signature: string): string {
   const tag = `<meta name="${PROJECT_SIGNATURE_META}" content="${signature}">`;
   if (html.includes(`name="${PROJECT_SIGNATURE_META}"`)) {
@@ -309,15 +308,15 @@ export function registerPreviewRoutes(api: Hono, adapter: StudioApiAdapter): voi
   // Bundled composition preview
   // fallow-ignore-next-line complexity
   api.get("/projects/:id/preview", async (c) => {
-    const project = await adapter.resolveProject(c.req.param("id"));
-    if (!project) return c.json({ error: "not found" }, 404);
+    const resolved = await resolveProjectAndSignature(adapter, c.req.param("id"));
+    if (!resolved) return c.json({ error: "not found" }, 404);
+    const { project, signature } = resolved;
 
     // fallow-ignore-next-line code-duplication
     const vars = previewVariablesFromRequest(c.req.query("variables"));
     if (vars.error !== undefined) return c.json({ error: vars.error }, 400);
     const previewVariables = vars.values;
 
-    const signature = resolveProjectSignature(adapter, project.dir);
     const etag = `"preview:${signature}${variablesEtagSalt(vars.raw)}"`;
     const ifNoneMatch = c.req.header("If-None-Match");
     if (ifNoneMatch === etag) {
@@ -422,15 +421,14 @@ export function registerPreviewRoutes(api: Hono, adapter: StudioApiAdapter): voi
   // Sub-composition preview
   // fallow-ignore-next-line complexity
   api.get("/projects/:id/preview/comp/*", async (c) => {
-    const project = await adapter.resolveProject(c.req.param("id"));
-    if (!project) return c.json({ error: "not found" }, 404);
+    const resolved = await resolveProjectAndSignature(adapter, c.req.param("id"));
+    if (!resolved) return c.json({ error: "not found" }, 404);
+    const { project, signature } = resolved;
 
     // fallow-ignore-next-line code-duplication
     const vars = previewVariablesFromRequest(c.req.query("variables"));
     if (vars.error !== undefined) return c.json({ error: vars.error }, 400);
     const previewVariables = vars.values;
-
-    const signature = resolveProjectSignature(adapter, project.dir);
     const compPath = decodeURIComponent(
       c.req.path.replace(`/projects/${project.id}/preview/comp/`, "").split("?")[0] ?? "",
     );

packages/studio-server/src/routes/projects.test.ts

@@ -58,6 +58,50 @@ function createAdapter(projectDir: string): StudioApiAdapter {
   };
 }
 
+describe("GET /projects/:id/signature", () => {
+  it("returns the adapter's cached signature when provided", async () => {
+    const projectDir = createProjectDir();
+    const app = new Hono();
+    registerProjectRoutes(app, {
+      ...createAdapter(projectDir),
+      getProjectSignature: () => "cached-sig",
+    });
+
+    const response = await app.request("http://localhost/projects/demo/signature");
+    expect(response.status).toBe(200);
+    expect(await response.json()).toEqual({ signature: "cached-sig" });
+  });
+
+  it("computes a signature that moves when project files change", async () => {
+    const projectDir = createProjectDir();
+    const app = new Hono();
+    registerProjectRoutes(app, createAdapter(projectDir));
+
+    const first = (await (
+      await app.request("http://localhost/projects/demo/signature")
+    ).json()) as {
+      signature: string;
+    };
+    expect(first.signature).toMatch(/^[0-9a-f]{24}$/);
+
+    writeFileSync(join(projectDir, "compositions", "scene.html"), "<html><body>new</body></html>");
+    const second = (await (
+      await app.request("http://localhost/projects/demo/signature")
+    ).json()) as { signature: string };
+    expect(second.signature).not.toBe(first.signature);
+  });
+
+  it("404s for an unknown project", async () => {
+    const app = new Hono();
+    registerProjectRoutes(app, {
+      ...createAdapter(createProjectDir()),
+      resolveProject: async () => null,
+    });
+    const response = await app.request("http://localhost/projects/nope/signature");
+    expect(response.status).toBe(404);
+  });
+});
+
 describe("registerProjectRoutes — composition discovery (#1384)", () => {
   it("excludes HTML inside dot-directories from compositions", async () => {
     const projectDir = createProjectDir();

packages/studio-server/src/routes/projects.ts

@@ -3,6 +3,7 @@ import { join } from "node:path";
 import type { Hono } from "hono";
 import type { StudioApiAdapter } from "../types.js";
 import { isInHiddenOrVendorDir, walkDir } from "../helpers/safePath.js";
+import { resolveProjectSignature } from "../helpers/projectSignature.js";
 
 const COMPOSITION_ID_RE = /data-composition-id\s*=/;
 
@@ -39,6 +40,15 @@ export function registerProjectRoutes(api: Hono, adapter: StudioApiAdapter): voi
     return c.json(result);
   });
 
+  // Current content signature for a project — a cheap poll target for clients
+  // that refresh themselves when files change on disk (the storyboard board
+  // re-fetches when this differs from the signature its data was loaded with).
+  api.get("/projects/:id/signature", async (c) => {
+    const project = await adapter.resolveProject(c.req.param("id"));
+    if (!project) return c.json({ error: "not found" }, 404);
+    return c.json({ signature: resolveProjectSignature(adapter, project.dir) });
+  });
+
   // Project file tree
   api.get("/projects/:id", async (c) => {
     const project = await adapter.resolveProject(c.req.param("id"));

packages/studio-server/src/routes/storyboard.test.ts

@@ -106,4 +106,17 @@ Not built yet.
     const { body } = await getStoryboard(dir);
     expect(body.frames[0].srcExists).toBe(false);
   });
+
+  it("carries a project signature in both the absent and present branches", async () => {
+    const dir = makeProject();
+    const absent = await getStoryboard(dir);
+    expect(absent.body.exists).toBe(false);
+    expect(absent.body.signature).toMatch(/^[0-9a-f]{24}$/);
+
+    writeFileSync(join(dir, "STORYBOARD.md"), "## Frame 1\n\nHi.\n");
+    const present = await getStoryboard(dir);
+    expect(present.body.exists).toBe(true);
+    expect(present.body.signature).toMatch(/^[0-9a-f]{24}$/);
+    expect(present.body.signature).not.toBe(absent.body.signature);
+  });
 });