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hyperframes/skills/hyperframes-core/references/variables-and-media.md
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WaterrrForever b9be0b2625 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 (#2133)
* feat(studio,cli): per-frame board comments, self-refreshing storyboard, status-aware preview landing

Per-frame comment boxes on the storyboard board batch into
.hyperframes/frame-comments.json (a resubmit wins per frame; unconsumed
comments on other frames are kept). Submitted-but-unconsumed comments
stay visible — a toolbar banner plus a per-tile echo — until the agent
consumes the file; the banner also says what to do next (reply anything
in the agent chat).

The board keeps itself current: GET /projects/:id/signature exposes the
watcher-cached project signature, the storyboard payload carries the
signature it was derived from, and the view polls at 2s (hidden tabs
skipped, re-checked on visibility), refetching in place with no loading
flash. Posters bake the signature into their URL so tiles fill in as
sketches land and a poster that failed mid-write retries on the next
version; the empty state upgrades itself when STORYBOARD.md appears,
and its handoff prompt now points the agent at the review loop and uses
the parser's real status vocabulary (outline, not planned).

preview lands the browser on the storyboard view while the board is the
review surface — any frame built, or pure planning (srcs declared, none
on disk yet) — and on the timeline once the video is assembled.

* feat(skills): the review loop — plan, sketch, build as one shared process

hyperframes-core/references/review-loop.md is the single source for the
three-pass collaborative review: the plan proposed on a live board
(§ 1), wireframe sketches marked built with one layout question (§ 2 —
real words on plain blocks, run no CLI; a confirmed board is itself a
valid deliverable when the user asked for a storyboard, not a video),
the build dressing confirmed layouts (§ 3, worker or inline), and the
final look (§ 4). Autonomous runs skip every gate and keep one question
before render.

The three narrative workflows' Steps 3/4/6 collapse to references plus
their sketch stand-ins (captured-asset blocks for product-launch-video,
plain code panels for pr-to-video); the confirmed-sketch handoff stays
in each frame-worker prompt. general-video plans on a board for
multi-scene narrative pieces in collaborative mode — its sketch pass is
layout-before-animation with the user watching. The router treats
"I want a storyboard" as a process request rather than a route, and
closes exploratory intake by recommending a route plus how the run will
review.

The supporting contracts land next door: the comments channel (silent
submit, one reply picks it up, check the file before the words) in
brief-contract § 1; the sidecar schema and the built status rung in
storyboard-format; the mode question asked first and alone in the three
workflows' Step 0.

* feat(media-use): user memory — remembered preferences and frozen recipes

Two tiers of memory on media-use's existing two-tier storage split.

Preferences (lightweight): confirmed brief answers — destination, aspect,
language, mode, voice, style preset — recorded to the project's
.media/preferences.json (committed, the team inherits it) and promoted
to the personal ~/.media/preferences.json once the same value is
confirmed in two different projects (a sightings ledger accumulates the
cross-project evidence user-side, since project files can't see each
other). prefs.mjs get/record; merge reads project-over-user; a changed
value restarts its provenance.

Recipes (heavyweight): one approved run frozen as a named, versioned
bundle — frame.md, the storyboard skeleton (structure kept: durations,
transitions, srcs, Video direction; statuses reset to outline; content
blanked to per-frame fill-ins naming the beat's role), and the confirmed
brief values. Named folders, not content hashes: re-freezing bumps
version and archives <name>@v<N>; a freeze is already confirmed, so it
promotes to the user tier immediately. recipe.mjs freeze/list/use, plus
resolve --type recipe --entity <name> delegating like grade/lut.

16 new node --test cases; the media-use lib suite is 168/168.

* feat(skills): wire user memory into the brief and the review loop

brief-contract § 2 gains Remembered defaults: read the merged
preferences before Round 2 and let a remembered value become the
recommended option with a receipt naming its source project. Memory
changes the default, never the question — every ask-marked field still
gets asked, and what the request says this time beats what was picked
last time. Record only what the user actually confirmed (a defaulted
voice nobody chose is not an answer; a "go" that accepts the
recommended defaults is). The first record announces itself once;
after that the receipts carry the reminder. In autonomous mode a
remembered value becomes the decided value, receipt included.

The three narrative workflows read the remembered defaults before
Round 2, record the confirmed answers at the Step 0 gate, record the
chosen preset at the Step 2 gate (pr-to-video excepted — its preset is
fixed), and fall back to the remembered voice when the request names
none. general-video's discovery reads the same defaults.

Recipes wire in at both ends: Step 0 checks for a matching recipe
before the mode question — one question, plural-aware, and adopting
one fills the brief, skips the design step, and drafts the storyboard
from the frozen skeleton while every review gate still runs. The
review loop's final look (§ 4) offers the freeze once after approval,
and the confirmation teaches the recall phrase — the name is something
the system reminds the user of, never something they must remember.
The router recognizes a named recipe or "like last time" as a route.

* docs(skills): the sketch pass names check, not the deprecated validate

* feat(skills): intent-layer references — process, route briefs, capability menu, BRIEF.md format

* feat(media-use): brief skeleton as the recipe's fourth artifact; flow/storyboard preference keys

* feat(skills): the intent layer conducts every brief — workflows execute BRIEF.md

* feat(skills): retire the mode preference key; sync catalog surfaces for intent layer

* refactor(skills): dedupe router vs intent-layer guidance — one owner per rule

* feat(skills): the design ask — own spec, pick by eye from showcases, or defer

* docs(skills): the design ask says the honest line on capture routes

* feat(skills): product-launch-video absorbs website-to-video as the tour angle

* refactor(skills): keep product-launch-video pristine — a tour is brief intent, not a pipeline branch

* feat(skills): production loop + genre lenses; general-video goes freeform (route yours, laws hold)

* refactor(skills): /hyperframes is the front door - route tables and scope lists leave the workflows

* docs(skills): review-loop pass across skill catalog

* fix(cli): pass project dir to openStudioBrowser in background-server path

* feat(skills): add pitch-round reference - verbalized sampling concept gate

* feat(skills): wire pitch round into intent layer - completeness triage + route eligibility

* feat(skills): editorial capability recommendations, handoff disciplines, menu-probe split

* feat(skills): pitches carry their machinery; source-only-formed requests pitch the telling

* feat(skills): companion goes director - ceiling treatment plus blueprint/rule citation discipline

* fix(scripts): sandbox npx-leak guard - private npm global prefix keeps npx on the branch CLI

* chore(skills): resync manifest hash after formatter pass reflowed general-video tables

* fix(skills): recipe freeze reads workflow from BRIEF.md; style_preset records require workflow scope

Two holes found by a live companion-run freeze: the agent-supplied --workflow
contradicted the run's actual workflow (recipe.json said faceless-explainer,
brief-skeleton said general-video), and the style_preset lookup missed because
the preference had been recorded under the bare key.

- freezeRecipe resolves the workflow from BRIEF.md frontmatter; the flag is a
  fallback for briefless projects and a contradicting flag is ignored (noted).
- recordPreference refuses a bare style_preset — the scoped key is the only
  writable shape; freeze tolerates legacy bare records via read fallback.
- review-loop § 4 / media-use SKILL / brief-format wording follow the machinery.
2026-07-15 21:19:14 +08:00

6.1 KiB

Variables and Media

Two separate concerns, grouped because both control "what flows in from outside the HTML": runtime parameters (variables) and external media files (video/audio).

Variables

Declare variables on the <html> element with data-composition-variables. Each declaration needs id, type, label, and default:

<html
  data-composition-variables='[
    {"id":"title","type":"string","label":"Title","default":"Hello"},
    {"id":"accent","type":"color","label":"Accent","default":"#66d9ef"}
  ]'
></html>

Prefer declarative bindings — no script needed for direct substitution:

<img class="clip" data-start="0" data-duration="5" data-var-src="heroImage" src="fallback.jpg" />
<h1 class="clip" data-start="0" data-duration="5" data-var-text="title">Fallback</h1>
<style>
  .card {
    color: var(--accent);
  }
</style>
  • data-var-src="id" substitutes the element's src (URL string or image {url}); the authored src is the fallback.
  • data-var-text="id" substitutes the element's own text; element children (nested clips, animated spans) are preserved.
  • Every scalar variable is applied automatically as a --{id} CSS custom property on the composition root, so var(--id) CSS responds to overrides — no setProperty boilerplate.
  • Bindings resolve identically in preview and render, and per-instance for sub-compositions.
  • Caveat: media with audio should keep a real fallback src — render audio extraction reads the authored attribute (lint: media_variable_src_no_fallback).

For logic beyond direct substitution (loops, conditionals, derived values), read values once during initialization:

const { title, accent } = window.__hyperframes.getVariables();
document.getElementById("title").textContent = title;

Variable Rules

  • Supported types and their extra options (consumed by Studio's editing UI):
    • string — optional placeholder, maxLength
    • number — optional min, max, step, unit
    • color — none
    • boolean — none
    • enumrequired options: [{ "value": "...", "label": "..." }, ...]
  • Always provide useful default values so preview works without CLI overrides.
  • Use data-variable-values='{"title":"Pro"}' on sub-composition hosts for per-instance overrides.
  • Use npx hyperframes render --variables '{"title":"Q4 Report"}' or --variables-file for render-time overrides.
  • Add --strict-variables in CI: turns undeclared keys, type mismatches, and enum values not in options into errors instead of warnings.
  • Read values once during init, not on every animation tick — variables don't change mid-render.
  • Media color grading can use exact variable references inside data-color-grading JSON. Use $gradingPreset or ${gradingIntensity} as the whole field value; the runtime resolves it from the current composition's variables before applying shader adjustments, finishing details, blur/pixelate effects, and custom LUTs.

Two JSON Shapes (Easy to Confuse)

  • data-composition-variables is an array of declarations (the schema): [{id, type, label, default}, ...]
  • --variables and data-variable-values are objects keyed by id (the values): { title: "Q4", accent: "#fff" }

Media

NON-NEGOTIABLE: <video>/<audio> must be a DIRECT child of the host composition root (index.html). The runtime only registers + drives media that is a direct root child. Media placed inside a sub-composition <template>, or wrapped in any intermediate <div>, is never seeked/decoded → renders blank (paper/white) or black. Do not rely on lint or check alone; a per-frame snapshot reveals the blank panel.

Consequences:

  • A scene-specific clip still lives at the host root, not in the scene's sub-comp. The sub-comp keeps only the frame/shell; the media is a sibling host element positioned over it.
  • A sub-composition cannot reach or animate host elements — neither document.querySelector("#host-id") nor a gsap selector string (tl.to("#host-id", …)) resolves across the boundary; a sub-comp timeline only drives its own subtree. So all per-scene motion on host media (scale/opacity/morph/tilt/breathing) must be authored on the MAIN timeline in index.html, at GLOBAL time (scene-local time + the scene slot's data-start). For 3D tilt without a perspective parent, use gsap transformPerspective on the element. See composition-patterns.md archetype B.

Video elements must be muted and inline. Audio must be a separate <audio> element, even when it uses the same source file.

<video
  id="a-roll"
  class="clip"
  src="assets/demo.mp4"
  data-start="0"
  data-duration="12"
  data-track-index="0"
  muted
  playsinline
></video>

<audio
  id="a-roll-audio"
  src="assets/demo.mp4"
  data-start="0"
  data-duration="12"
  data-track-index="10"
  data-volume="1"
></audio>

Media Rules

  • Do not call video.play(), audio.play(), pause, or seek in composition code. HyperFrames owns playback.
  • Do not place media inside a sub-comp <template> or any wrapper <div> — direct host-root child only (see above), else it never decodes.
  • Do not drive host media from a sub-comp timeline — it has no effect. Drive it from the main timeline at global time.
  • Do not animate timed media element dimensions; animate a non-timed wrapper instead.
  • Do not nest video inside a timed wrapper. Put timing on the media element or keep the wrapper untimed.
  • Add crossorigin="anonymous" for external media that needs canvas capture or pixel inspection.
  • Audio always lives on a separate <audio> element — even if its source file is the same as a <video>. The <video> is muted; the <audio> carries sound.
  • For volume fades/ducking, animate volume on the timeline (tl.to("#bgm", { volume: 0, duration: 1 }, "outro")) rather than swapping data-volume. The runtime probes the timeline's volume keyframes and applies them identically in preview and render; data-volume is the static baseline for elements no tween touches.

For media duration: <video> and <audio> can omit data-duration if the media's intrinsic length is known and you want the full clip. Otherwise provide data-duration explicitly.