Longwave — the video pipeline for AI agents
Give any AI agent a creator's whole video pipeline. Turn one long-form episode into Shorts,
thumbnails, show notes and a podcast feed — then publish to the creator's own YouTube channel.
Works with Grok Bot, Grok Build, Cursor, Claude Code and Meta Muse. One MCP connection, OAuth 2.1,
and no API key anywhere.
Agents orchestrate. Longwave renders and publishes. The agent never downloads video, never holds
Google credentials, and never drives YouTube Studio.
What it produces
Point Longwave at one long-form episode, podcast or YouTube video and a whole distribution stack
comes back:
- Captioned vertical Shorts and clips — cut, framed and captioned from the transcript.
- Contextual AI thumbnails — the hook, the subtitle and the scene are generated from the
episode's own transcript, not grabbed from a frame.
- Transcript-based metadata — titles, descriptions, chapters, show notes and per-platform post
copy, written for each destination.
- An X post and an X video supercut — the link post and the native video clip are separate
outputs, and both can run from the same episode.
- A podcast RSS feed, built and syndicated to 13 directories — Apple Podcasts, Spotify, Amazon
Music, iHeartRadio, Pocket Casts, Castbox and more.
- A public link-in-bio hub for the creator's channel.
YouTube and X publish automatically. Every other clip is rendered as a captioned vertical file
ready to drop into Reels, TikTok and LinkedIn. Longwave is not a party to those platforms' terms and
never contacts them; the creator's own agent performs that step from the creator's session.
Why this exists
An agent can already cut video and drive a browser. Two things it cannot get for itself:
1. A verified YouTube upload grant. Google approved Longwave for youtube.force-ssl — production
mode, no user cap, no "unverified app" screen. The creator connects once, and Longwave delegates
scoped access to the agent. Standing up your own integration means OAuth app review and Google
verification before the first upload.
2. A pipeline, not a command. Cutting a Short is the easy part. Longwave also does the captions,
the title and description, the thumbnail, the playlist routing, the daily upload caps, the
cross-platform schedule, the podcast RSS feed and the retry when an upload fails halfway.
So this is not a wrapper around yt-dlp and a Studio bookmarklet. It is the publishing authority,
exposed as fifteen tools.
Install
grok plugin install Longwave-Media/longwave-plugin
Or add it as a self-hosted catalog source:
grok plugin marketplace add Longwave-Media/longwave-plugin
Both work with no review. Cursor and Claude Code read the same files; Muse builds its own MCP
client from the URL.
Connect
Nothing to configure, and no credentials live in this repo. An unauthenticated call to the MCP
endpoint returns:
HTTP/1.1 401 Unauthorized
WWW-Authenticate: Bearer resource_metadata="https://www.longwave.media/.well-known/oauth-protected-resource"
A conformant client follows that, registers itself, opens a browser, and the creator signs in and
approves. PKCE S256 is required. This is deliberate: Agent Plugins v1.0.0 §7.2.1 forbids
embedding secrets in headers, and OAuth discovery is how the spec expects authorization to work.
- MCP endpoint —
https://www.longwave.media/api/mcp (Streamable HTTP, stateless)
- Protected-resource metadata —
https://www.longwave.media/.well-known/oauth-protected-resource
- Authorization server —
https://www.longwave.media/.well-known/oauth-authorization-server
Fifteen tools — enough to run a creator's clip pipeline end to end, and deliberately no more. The
surface is a deny-by-default allowlist, not a mirror of the API, so a tool exists here because it
has an ownership-checked backing route.
Create and inspect — granted on first connect
| Tool | Does |
|---|
account_status | Channel connected? Credits left? Call this first. |
create_shorts_job | Cut a long-form episode into Shorts. Free — credits are spent on publish. |
get_job | Progress, clip count and errors for a job. |
list_clips | What was produced, with per-platform status and live URLs. |
create_supercut | Assemble one longer cut from a source video or from existing clips. |
Read — granted on first connect
| Tool | Does |
|---|
list_episodes | The creator's long-form catalogue, newest first, with status. |
get_episode | One episode in full: titles, notes, chapters, transcript, podcast state. |
get_insights | Channel-level summary: episode counts, recurring topics, hook types. |
get_content_intelligence | Longwave's written analysis of what to make next. |
get_channel_overview | Connected platforms and how each is performing. |
list_playlists | Playlists, and which one is the upload destination. |
list_thumbnail_styles | The thumbnail style catalogue. |
Change something public — a separate approval, every time
| Tool | Does |
|---|
publish_shorts | Publish Shorts to YouTube, with scheduling. |
reschedule_post | Move a queued post to a different hour, or unschedule it. |
approve_thumbnail | Publish an AI-generated thumbnail on the episode. |
Publishing and thumbnail changes are not granted on first connect — they are a step-up the
creator approves separately, because both change something public. The server asks for the extra
permission with 403 + WWW-Authenticate: ... error="insufficient_scope".
tools/list returns the whole catalogue regardless of grant, so a client can see what exists and ask
for it; the grant is enforced on the call. tools/list is authoritative and carries each tool's
full JSON Schema — the tables above are for someone reading this repo.
Every mutating tool accepts an idempotency_key. Retry a timed-out call with the same key and you
get the original result rather than a second job or a second public post.
What it costs
The creator starts free: 200 credits on signup, no card, and they do not expire.
Credits are charged to the creator per Short that actually publishes — nothing for a failed
render, nothing for a clip that is never posted.
| Action | Credits |
|---|
| Publish a Short | 1 |
| Publish a Short on autopilot | 1.5 |
| Publish to X through the shared app quota | 4 |
| Upload a full long-form episode | 5, plus 1 per GB |
The agent never handles payment. It holds no card and cannot reach a checkout. When the balance
runs low a tool returns a top_up_url; the agent's job is to hand it to the creator and stop.
Where it publishes
- Through the official API, by Longwave — YouTube (the episode and its Shorts), X (a post and a
supercut), a public Link-in-Bio hub, and podcast RSS syndicated to 13 directories.
- As a downloadable file — every Short is a vertical file on the CDN with its caption and
metadata attached, so an agent can post it anywhere from the creator's own signed-in session.
Longwave is not a party to any third-party platform's terms and never contacts them. We describe the
capability; the creator's agent performs the action.
Package layout
Two ecosystems describe plugin packages differently, and a client that finds no MCP config installs a
plugin with zero tools. Both layouts are therefore shipped:
| Path | Convention |
|---|
plugin.json | Agent Plugins v1.0.0 — closed schema, fixed location |
mcp.json | Agent Plugins v1.0.0 — transport streamable-http |
.grok-plugin/plugin.json | Grok / xAI marketplace — verified against xAI's own vendored external_plugins/neon and third-party getsentry/plugin-grok |
.mcp.json | Grok MCP config — transport http |
skills/longwave/SKILL.md | Shared by both — the instructions the model reads |
.grok-plugin/marketplace.json | Self-hosted catalog (tracks repo HEAD) |
assets/logo.svg | Listing logo — the Groundswell mark, monochrome currentColor per brand canon |
assets/icon.svg | 1:1 marketplace logotype — Groundswell on the ink plate, full-bleed 1024. This is the one a listing tile wants, because a monochrome mark with no plate disappears on a light or busy background |
Who maintains this
Longwave is a product of Signal Group Limited (New Zealand · NZBN 9429035771678 · Co. No 1396666).
The dashboard repo's scripts/verify-plugin-package.ts validates this package before any release —
58 checks covering both manifest conventions, author agreement, a single MCP endpoint across both
configs, and drift between the skill's allowed-tools, this README and the live tool manifest.
Submitting to the official xAI catalog
Entries live in xai-org/plugin-marketplace, where
the source must be SHA-pinned to a full 40-character lowercase commit —
scripts/validate-catalog.py enforces that, and Grok re-verifies git rev-parse HEAD == sha after
cloning, so a force-push cannot silently ship new code. xAI also expects the source to be an
organisation repository; ours is Longwave-Media.
git ls-remote https://github.com/Longwave-Media/longwave-plugin.git HEAD
Then add the entry, regenerate the component index, validate, and open a PR:
python3 scripts/generate-plugin-index.py
python3 scripts/validate-catalog.py
Re-pin sha on every release — never open a parallel entry.
Submitting to the Cursor Marketplace (this is Grok Bot's plugin catalog)
Grok Bot installs its plugins — Settings → Plugins — from the Cursor Marketplace, which is a
different surface from Grok Build's catalog above. Submission is a form, not a pull request: paste
this repository's URL at https://cursor.com/marketplace/publish. The Cursor team manually reviews a
new listing and every update, so there is no SHA pin to maintain — the listing tracks the default
branch.
This package is already in the format Cursor accepts: a root plugin.json per the Agent Plugins
specification, with mcp.json, skills/ and README.md alongside it. keywords and the
description are what a marketplace search matches, which is why the manifest carries the plain
words a creator would type — youtube, shorts, reels, video, clips, podcast — and not just
the product vocabulary.
Privacy and data
This package collects nothing and stores nothing. Anything the creator acts on is handled by the
hosted Longwave service under its own terms: https://www.longwave.media/terms and
https://www.longwave.media/privacy. YouTube credentials never leave Longwave's servers, and the
agent receives only an opaque, scoped Longwave token.
Support
support@longwave.media · https://www.longwave.media · org profile
License
MIT for this package. That does not cover the hosted Longwave service.