media-use

Resolve media needs into frozen local files. One verb, four types, zero context noise.

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.

Resolve

node <SKILL_DIR>/scripts/resolve.mjs --type <type> --intent "<description>" --project <dir>

Returns one line: resolved <id> → <path> (<type>, <metadata>)

Types

Type	What it finds	Provider
bgm	Background music	HeyGen audio catalog (10k+ tracks)
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)

Examples

# Background music
node <SKILL_DIR>/scripts/resolve.mjs --type bgm --intent "upbeat tech launch" --project .
# → resolved bgm_001 → .media/audio/bgm/bgm_001.mp3 (bgm, 25s)

# Sound effect
node <SKILL_DIR>/scripts/resolve.mjs --type sfx --intent "whoosh" --project .
# → resolved sfx_001 → .media/audio/sfx/sfx_001.mp3 (sfx, 0.57s)

# Image
node <SKILL_DIR>/scripts/resolve.mjs --type image --intent "gradient tech background" --project .
# → resolved image_001 → .media/images/image_001.jpg (image)

# Icon
node <SKILL_DIR>/scripts/resolve.mjs --type icon --intent "rocket" --project .
# → resolved icon_001 → .media/images/icon_001.png (icon, transparent)

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

How it works

1. Check project .media/manifest.jsonl for exact-prompt match
2. Scan existing assets/ directory for unregistered files matching the need
3. Check global cache ~/.media/ for reusable asset
4. Search via provider (HeyGen audio catalog, HeyGen asset search)
5. Freeze file to .media/<type>/, register in manifest, regenerate index.md

The agent gets back one line. Candidates, scores, provenance stay on disk.

Adopt existing projects

Most HyperFrames projects already have assets in assets/. media-use adopts them:

node <SKILL_DIR>/scripts/resolve.mjs --adopt --project .
# → adopted 9 assets from assets/
#   bgm_001 → assets/bgm/mango-fizz.mp3 (bgm, 146.6s)
#   image_001 → assets/images/avatar.jpg (image, 400×400)

ffprobe extracts real duration and dimensions. During resolve, unregistered files in assets/ matching the intent are adopted on the fly.

Reading the inventory

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

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.

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)

CLI tools used

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:

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>

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".