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feat(media-use): v2 media OS core (resolve cascade, providers, local generation, telemetry) + retire hyperframes-media

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Miguel Angel Simon Sierra
2026-07-06 23:41:05 -04:00
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skills/media-use/SKILL.md
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---
name: media-use
description: Agent Media OS — resolve any media need (BGM, SFX, image, icon) into a frozen local file + ledger record. One verb (`resolve`) handles the full cascade — project cache, global cache, HeyGen catalog search, freeze, register. Keeps search noise on disk, hands the agent a path. Use when a composition needs background music, sound effects, images, or icons.
description: Agent Media OS, the single skill for every media need in a HyperFrames project. Resolve BGM, SFX, image, icon, or voice into a frozen local file + ledger record (one verb, `resolve`); generate via TTS / music / image models when the catalog misses; produce voiceover, transcription, captions, and background removal through one shared audio engine; operate on media (cut / reframe / transform); and reuse assets across projects. Keeps search noise on disk, hands the agent a path. Use for any audio, image, icon, voiceover, caption, or media-asset need.
---
# media-use
Resolve media needs into frozen local files. One verb, four types, zero context noise.
The media OS for HyperFrames: resolve · generate · operate · remember, every media type, one skill, zero context noise.
## What it owns (the gaps HyperFrames leaves)
HyperFrames owns media _playback_; media-use owns everything else. Each row is enforced by `scripts/lib/coverage.test.mjs` so the claim can't rot.
| HyperFrames gap | media-use owns it via |
| ------------------------------------------ | ------------------------------------------------------------------------------------------------------------------------------------------- |
| Audio-only, no image/icon | `resolve --type image\|icon` (heygen asset search) |
| No voice / audio generation | `resolve --type voice` + the audio engine (`audio/scripts/audio.mjs`) |
| Scattered/duplicated audio engine | one consolidated engine under `audio/` (hyperframes-media retired) |
| No agent media-ops (cut/reframe/transform) | `references/operations.md` + `resolve --from` to register outputs |
| No transcript-driven cutting | `scripts/transcript-cut.mjs` compiles word-timestamp edits into cut lists |
| No auto-duck / publish loudness | `scripts/audio-duck.mjs` + `references/operations.md` loudnorm/sidechain recipes |
| No cross-project memory | global content-addressed cache + auto-promote (`~/.media`) |
| No image generation | RAM-graded local mflux (FLUX) via `scripts/lib/mflux-provider.mjs`, codex `image_gen` upsell (`scripts/lib/codex-provider.mjs`) |
| No video generation | spec-gated local LTX (`videogen` in `scripts/lib/local-models.mjs`); `heygen video create` avatar upsell |
| Weak local-model defaults | free-usage HeyGen first (TTS, bg-removal) via the `heygen` CLI; local open-source only as an opt-out fallback (`scripts/lib/local-run.mjs`) |
## When to use
Call `resolve` whenever a composition needs media — background music, sound effects, images, or icons. media-use searches the HeyGen catalog, downloads the best match, freezes it locally, and registers it in a manifest. The agent gets back one line; all search noise stays on disk.
Call `resolve` whenever a composition needs media: background music, sound effects, images, icons, or voice. For voiceover / TTS, music, SFX, and caption timing, use the **audio engine** (below); background removal is delegated to the `hyperframes` CLI; transcription defaults to Parakeet (better than whisper.cpp: 6.05% vs 7.44% WER, 5-10x faster) via `scripts/transcribe.mjs`, with whisper.cpp auto-fallback (see `references/operations.md`). For cutting / reframing / transforming existing media, see `references/operations.md`. media-use searches the HeyGen catalog first, freezes the best match locally, registers it in a manifest, and hands the agent one line; all search noise stays on disk.
## Resolve
@@ -27,6 +44,7 @@ Returns one line: `resolved <id> → <path> (<type>, <metadata>)`
| `sfx` | Sound effects | Bundled 19-file library + HeyGen catalog |
| `image` | Photos, backgrounds | HeyGen asset search (75k+ vectors) |
| `icon` | Icons, logos | HeyGen asset search (type=icon) |
| `voice` | TTS voiceover | Local Kokoro (free); HeyGen TTS upsell |
### Examples
@@ -50,14 +68,46 @@ node <SKILL_DIR>/scripts/resolve.mjs --type icon --intent "rocket" --project .
### Flags
| Flag | Description |
| --------------- | ------------------------------------------ |
| `--type, -t` | Media type: bgm, sfx, image, icon |
| `--intent, -i` | What you need (natural language) |
| `--entity, -e` | Entity name for cache matching (optional) |
| `--project, -p` | Project directory (default: .) |
| `--adopt` | Bulk-import existing assets/ into manifest |
| `--json` | Output JSON instead of one-line result |
| Flag | Description |
| --------------- | --------------------------------------------------------------- |
| `--type, -t` | Media type: bgm, sfx, image, icon, voice |
| `--intent, -i` | What you need (natural language) |
| `--entity, -e` | Entity name for cache matching (optional) |
| `--project, -p` | Project directory (default: .) |
| `--from` | Freeze a local file or direct public URL (ingest) |
| `--local-only` | Offline: skip every network provider (cache + local only) |
| `--provider` | Force one generator (e.g. `codex`, `mflux`, `kokoro`, `heygen`) |
| `--adopt` | Bulk-import existing assets/ into manifest |
| `--json` | Output JSON instead of one-line result |
## Providers
media-use holds no keys; every external tool owns its auth. Generation is
local-first with a cloud upsell where one helps. `resolve` spec-checks
AVAILABLE RAM and auto-picks the best local model that fits (a RAM-graded
ladder, `describeModelLadder`); the agent can see the ladder and override.
| Type | Provider (in order) |
| ------------- | --------------------------------------------------------------------------------------- |
| bgm/sfx | heygen catalog (free) |
| image | heygen search, then local mflux (best FLUX for your RAM), then codex `image_gen` upsell |
| voice | local **Kokoro** (free, on-device), then **heygen tts** paid upsell |
| icon | heygen asset search |
| video (local) | local LTX (`videogen` ladder); `heygen video create` avatar upsell |
Local Kokoro (voice), mflux (image), and LTX (video) run on-device (free,
private, offline once cached). Paid/cloud upsells sit behind them: HeyGen TTS
for voice, the `codex` CLI (ChatGPT sub) for a better image, the `heygen` CLI
for avatar video. Cost rule (X4): the agent confirms before an agent-initiated
paid call; a user-requested one just runs.
To force a specific generator (e.g. a user says "make this image with codex"),
pass `--provider codex`: it pins resolution to that provider and skips the
free-first default. See `references/operations.md` for the RAM ladders and
upsell recipes.
`--local-only` skips every network provider, including the free HeyGen ones,
leaving the project + global cache and any local provider.
## How it works
@@ -90,35 +140,84 @@ After resolve or adopt, read `.media/index.md` for the full inventory:
# .media · 4 assets
id type dur dims path description
bgm_001 bgm 25s — .media/audio/bgm/bgm_001.mp3 upbeat tech launch
sfx_001 sfx 0.6s — .media/audio/sfx/sfx_001.mp3 whoosh
image_001 image — 1920×1080 .media/images/image_001.jpg gradient tech background
icon_001 icon — 200×200 .media/images/icon_001.png rocket
bgm_001 bgm 25s - .media/audio/bgm/bgm_001.mp3 upbeat tech launch
sfx_001 sfx 0.6s - .media/audio/sfx/sfx_001.mp3 whoosh
image_001 image - 1920×1080 .media/images/image_001.jpg gradient tech background
icon_001 icon - 200×200 .media/images/icon_001.png rocket
```
## Cross-project reuse
Assets are cached automatically on resolve. Subsequent resolves for the same prompt hit the global cache at `~/.media/` — no re-download, no provider call. Promote an asset explicitly with `organize --promote <id>` to make it reusable across all projects.
Assets are cached automatically on resolve. Every resolved/ingested asset is auto-promoted to the global cache at `~/.media/`, so subsequent resolves for the same prompt, in any project, hit the cache with no re-download and no provider call.
## Files
- `.media/manifest.jsonl` — machine SSOT, one JSON record per line
- `.media/index.md` — agent-readable table (id, type, dur, dims, path, description)
- `~/.media/` — global cross-project reuse cache (content-addressed, SHA-256)
- `.media/manifest.jsonl`: machine SSOT, one JSON record per line
- `.media/index.md`: agent-readable table (id, type, dur, dims, path, description)
- `~/.media/`: global cross-project reuse cache (content-addressed, SHA-256)
## CLI tools used
## Audio engine: voiceover, music, SFX, captions, transcription
| Tool | Purpose | Required? |
| --------- | ------------------------------------------ | ------------- |
| `ffprobe` | Probe duration, dimensions, codec on adopt | Yes |
| `heygen` | Audio catalog, asset search | For providers |
Install the `heygen` CLI (single static binary, no runtime) and authenticate:
For a full audio pass (TTS voiceover + background music + sound effects in one
shot), use the shared engine at `audio/scripts/audio.mjs`. It takes a neutral
`audio_request.json` and writes `audio_meta.json` plus assets under
`.media/audio/{voice,bgm,sfx}`:
```bash
curl -fsSL https://static.heygen.ai/cli/install.sh | bash # installs latest to ~/.local/bin
heygen update # if already installed: needs >= v0.1.6
export HEYGEN_API_KEY=<your-key> # or: heygen auth login --key <key>
node <SKILL_DIR>/audio/scripts/audio.mjs --request ./audio_request.json --out ./audio_meta.json
```
Requires **heygen >= v0.1.6** — the providers tag requests with the allowlisted `--headers 'X-HeyGen-Client-Source: media-use'` flag, added in v0.1.6. `asset search` is a pre-launch command hidden from `heygen --help`, but it runs. Without a `heygen` on PATH (or a valid key) the providers print a one-line diagnostic to stderr and resolve falls through to "no provider could resolve".
- **Request** `{ provider?, lang?, speed?, lines: [{ id, text, sfx?: [names] }], bgm: { mode?, query?, prompt? } }`: `id` joins each line back to your model; `bgm.mode` = `retrieve | generate | none` (omit for auto). `--only tts,bgm,sfx` runs a subset and merges into an existing `--out`.
- **Output** `audio_meta.json` (id-keyed): `voices[].{path,duration_s,words[]}` (word timestamps for captions), `sfx[]`, `bgm`, `total_duration_s`.
- **Auto-degrades on one switch**: HeyGen credential present → HeyGen TTS + music/SFX retrieval; absent → ElevenLabs/Kokoro TTS, Lyria/MusicGen BGM generation, and the bundled SFX library (no credential needed).
- If BGM took the generate path (`bgm_pending: true`), run `audio/scripts/wait-bgm.mjs` before final render.
Single-shot helpers: `audio/scripts/heygen-tts.mjs` (one voice file). Transcription / background removal / captions use the `hyperframes` CLI (`transcribe`, `remove-background`), see the per-topic guides in `audio/references/` (`tts.md`, `bgm.md`, `sfx.md`, `transcribe.md`, `remove-background.md`, `captions/`).
## Operating on media (cut, reframe, transform)
media-use resolves + remembers; for **operating** on assets see
`references/operations.md`: local-tool recipes (ffmpeg trim/reframe/montage,
auto-editor, scenedetect) and the local-vs-HeyGen transform table (background
removal, upscale, lipsync, translate). Run the tool, then register the output
with `resolve --from <output> --type <type>` so it joins the ledger + global
cache.
## CLI tools used (what to run, and how to enable each)
`resolve` auto-cascades; each provider shells one CLI. Local tools are OPT-IN:
if a local tool is absent, resolve degrades gracefully to the free/cloud path,
so nothing here is strictly required except `ffmpeg`/`ffprobe`. Install a local
tool to unlock its free, private, on-device path. media-use holds no keys.
| Tool | Serves | Install |
| ------------------ | ------------------------------------------------------------------------ | ------------------------------------------------------------------------------------------------------------------- |
| `ffmpeg`/`ffprobe` | adopt probing, cut, duck bake, loudnorm | system package (`brew install ffmpeg`) |
| `heygen` | catalog (bgm/sfx/image/icon), TTS + avatar upsell | `curl -fsSL https://static.heygen.ai/cli/install.sh \| bash` then `heygen auth login --key <key>` (needs >= v0.1.6) |
| `mflux-generate` | local image gen (FLUX), best-for-RAM | `uv venv ~/.venvs/mflux && VIRTUAL_ENV=~/.venvs/mflux uv pip install mflux==0.9.6` |
| `codex` | image gen upsell (ChatGPT sub) | Codex CLI, logged in via ChatGPT (owns its own auth) |
| `parakeet-mlx` | local transcription (default ASR, best) | `uv venv ~/.venvs/parakeet && VIRTUAL_ENV=~/.venvs/parakeet uv pip install parakeet-mlx` |
| `ltx-2-mlx` | local video gen | `git clone https://github.com/dgrauet/ltx-2-mlx && cd ltx-2-mlx && uv sync --all-extras` |
| `npx hyperframes` | Kokoro TTS (voice), whisper.cpp (transcribe fallback), remove-background | bundled with the hyperframes CLI |
The RAM-graded local-model shortlist + exact per-tier install/invoke lives in
`scripts/lib/local-models.mjs` (the agent can read `describeModelLadder(cap, specs)`
to see which model fits this machine). Without a tool on PATH, its provider
prints a one-line diagnostic to stderr and resolve falls through to the next
provider (e.g. no `mflux` -> codex image upsell; no `parakeet-mlx` -> whisper.cpp).
`heygen asset search` is a pre-launch command hidden from `heygen --help`, but it
runs; providers tag requests with the allowlisted `X-HeyGen-Client-Source` header
(v0.1.6+).
## Telemetry
`resolve` and the edit tools (transcribe / transcript-cut / audio-duck) send an
anonymous usage event to PostHog (`scripts/lib/telemetry.mjs`), so we can see
which capabilities are actually used. It records only the media TYPE, the
resolution SOURCE, and the winning PROVIDER: never the intent text, file names,
or paths, and `$ip:null` so no IP is stored. Best-effort and non-blocking (a
resolve never waits on or fails from telemetry).
Opt out with `DO_NOT_TRACK=1` or `HYPERFRAMES_NO_TELEMETRY=1` (also off in CI and
dev). Same public PostHog project key and opt-outs as the `hyperframes` CLI.