media-use
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.
- Installs
- 928
- Last 24h
- +12
- Trending rank
- #7898
- Security
- Not audited
Install
Works with every agent the skills CLI supports.
npx skills add https://github.com/calesthio/openmontage --skill media-use- 01
Install
Run the command in your project. The CLI asks which agents to install for.
- 02
Describe the task
Ask your agent for something this skill covers. It loads media-use automatically when relevant.
- 03
Review the result
The agent follows the SKILL.md steps, scripts and references bundled with the skill.
SKILL.md
The instructions your agent reads when the skill is triggered.
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
- Check project
.media/manifest.jsonlfor exact-prompt match - Scan existing
assets/directory for unregistered files matching the need - Check global cache
~/.media/for reusable asset - Search via provider (HeyGen audio catalog, HeyGen asset search)
- Freeze file to
.media/<type>/, register in manifest, regenerateindex.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".
FAQ
What does the media-use skill do?
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.
How do I install media-use?
Run npx skills add https://github.com/calesthio/openmontage --skill media-use in your project. The skills CLI detects the agents you use and copies the skill into the right folder. For Claude Code you can also place the skill folder at ~/.claude/skills/media-use/ (personal) or .claude/skills/media-use/ (project).
Which AI agents can use media-use?
Any agent that supports the open Agent Skills format (a folder with a SKILL.md file), including Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, Windsurf, Cline, OpenCode and more.
Is media-use safe to install?
No partner security audit is available yet. Skills can run commands and scripts, so read the SKILL.md and any bundled files before installing.
Who maintains media-use?
It is published by calesthio in calesthio/openmontage. It has 928 recorded installs.
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