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Agent skill

Scenario Runway

by scenario-labs in scenario-labs/skills

A skill your agent uses when generating or editing video with Runway models on Scenario via MCP: text-to-video or image-to-video from a first frame with Gen4.5 (cinematic motion, sequenced actions…

MITAuto-check passedMedia & Creative

Install Scenario Runway

skills CLI
$ npx skills add scenario-labs/skills --skill scenario-runway -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install scenario-labs/skills scenario-runway --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/scenario-labs/skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/scenario-runway .claude/skills/scenario-runway && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
scenario-runway
GitHub stars
946
Token cost
~1.2k tokens
SKILL.md length
560 words
Files
1
Skills in repo
146
Repo updated
First seen
Licence
MIT

At a glance

A skill your agent uses when generating or editing video with Runway models on Scenario via MCP: text-to-video or image-to-video from a first frame with Gen4.5 (cinematic motion, sequenced actions…

  • Works in 6 steps: search with target="models",… → model_schema_get with the Aleph id… → Trim or compress a source over the caps… → …
  • Editing video with Runway models on Scenario via MCP: text-to-video
  • SKILL.md covers Overview, Quick reference, Gen4.5 prompts follow the mode and Aleph changes what you name, plus 2 more sections
  • Calls npx

What it does

Scenario Runway is an agent skill from scenario-labs/skills. Use when generating or editing video with Runway models on Scenario via MCP: text-to-video or image-to-video from a first frame with Gen4.5 (cinematic motion, sequenced actions, camera choreography), or video-to-video editing of real footage with Aleph 2 (remove objects, swap products, restyle or relight shots, keyframe-pinned reference images, motion and audio preserved). Keywords: Runway ML, Gen4.5, Gen-4.5, Aleph, T2V, I2V, V2V, first frame.

Its SKILL.md is about 1.2k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Media & Creative, covering AI video generation and Video production. It works with Model Context Protocol. The repository describes itself as: Get production-ready images, video, audio, and 3D from any AI agent: skills that pick the right model, price before spending, and keep characters and brands consistent through… The licence is MIT.

When your agent uses it

  • Editing video with Runway models on Scenario via MCP: text-to-video
  • Image-to-video from a first frame with Gen4.5 (cinematic motion
  • Sequenced actions
  • Camera choreography)

Example prompts

  • “/scenario-runway”

Requirements

  • Node.js

Workflow steps

6 steps, taken from the first numbered list in SKILL.md.

  1. search with target="models", query="runway", public=true, e.g. model_runway-aleph-2 for editing, model_runway-gen4-5 for generation (live…
  2. model_schema_get with the Aleph id before anything else.
  3. Trim or compress a source over the caps (see scenario-video); upload_asset the clip and product still (see the scenario skill).
  4. model_run with dry_run=true and the exact parameters={"prompt": "Replace the soda can with the bottle from the reference image. Keep…
  5. Repeat with wait=false, then jobs_wait the returned job id, re-calling with pending_job_ids; a timeout is not a failure and never…
  6. asset_display the output; check the swap holds in every shot.

What it can do on your machine

Read from SKILL.md and the folder at commit f6f8ab7. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    Shell commands in SKILL.md call:

    • npx

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md. Its commands use npx, which can reach the network depending on how they are called.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Scenario Runway loads about 1.2k tokens when it runs. Until then it costs about 116 tokens; SKILL.md has 560 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~116
When it runs · the whole SKILL.md, loaded when a task matches
~1.2k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from scenario-labs/skills at commit f6f8ab7, republished under its MIT licence (© scenario-labs). 560 words, ~1,167 tokens.

Download SKILL.mdSave it as .claude/skills/scenario-runway/SKILL.md (or your agent's skills folder).
name
scenario-runway
description
Use when generating or editing video with Runway models on Scenario via MCP: text-to-video or image-to-video from a first frame with Gen4.5 (cinematic motion, sequenced actions, camera choreography), or video-to-video editing of real footage with Aleph 2 (remove objects, swap products, restyle or relight shots, keyframe-pinned reference images, motion and audio preserved). Keywords: Runway ML, Gen4.5, Gen-4.5, Aleph, T2V, I2V, V2V, first frame.
license
MIT

Scenario Runway Video

Overview

Runway's family on Scenario splits by direction: Gen4.5 generates new clips from text or a first-frame image; Aleph 2 rewrites existing footage, changing what the prompt names while motion, audio, and structure carry over. Discover both with search; model_schema_get is the contract.

Connection and the core loop: the scenario skill; model-agnostic video work: the scenario-video skill. If a sibling skill named here is missing from your available skills, ask the user to install it (npx skills add scenario-labs/skills --skill <name>); unattended, proceed from tool schemas and flag the gap.

Quick reference

Mode follows from the inputs (names and caps from the live schema):

ModeInputsBehavior
Text (Gen4.5)promptaspectRatio honored; duration 2 to 10 seconds
First frame (Gen4.5)image + promptopens on that frame; same duration; aspectRatio ignored
Edit (Aleph 2)video + promptrewrites visuals; motion, audio, structure persist

At authoring time Aleph capped sources at 30 seconds and 16 MB, separate limits: high-bitrate clips hit the size cap first. Its median cost ran six times Gen4.5's, a fifteen-fold spread following the source video: dry_run the exact payload first. Median latency neared six minutes, so jobs_wait will time out mid-job; re-call it with pending_job_ids.

Gen4.5 prompts follow the mode

Text mode needs both the visuals and the motion described. A first frame fixes subject, composition, and palette: spend the whole prompt on motion, camera, and atmosphere. Order beats explicitly ("kneels, then rises, camera cranes up") and give multi-beat prompts 8 to 10 seconds of duration. Name camera moves plainly (locked camera, pan, dolly, tracking, orbit, crane), one or two per clip, in present-tense prose.

aspectRatio takes pixel pairs ("1280:720", "960:960"), and text mode honored only the 16:9 and 9:16 pairs at authoring time; get other shapes (1:1, 4:3, 3:4, 21:9) from a first frame with that geometry instead.

Show full SKILL.md (257 more words)Show less

Aleph changes what you name

An Aleph prompt states the edit: remove, swap, restyle, relight. Everything unnamed persists, along with motion and audio: Aleph cannot re-choreograph or add camera moves; when motion must change, generate with Gen4.5. To steer the edit, pin up to 5 reference images: keyframes places each image (uri) by seconds or at (a 0 to 1 fraction); promptImage by positionType plus timestampSeconds or positionPercentage. The arrays are alternatives, never combined.

Worked example: swap a product in real footage

  1. search with target="models", query="runway", public=true, e.g. model_runway-aleph-2 for editing, model_runway-gen4-5 for generation (live hits at authoring time: re-discover each session).
  2. model_schema_get with the Aleph id before anything else.
  3. Trim or compress a source over the caps (see scenario-video); upload_asset the clip and product still (see the scenario skill).
  4. model_run with dry_run=true and the exact parameters={"prompt": "Replace the soda can with the bottle from the reference image. Keep everything else unchanged.", "video": "asset_clip", "keyframes": [{"uri": "asset_bottle", "at": 0}]}; re-estimate after any trim.
  5. Repeat with wait=false, then jobs_wait the returned job id, re-calling with pending_job_ids; a timeout is not a failure and never justifies a second model_run.
  6. asset_display the output; check the swap holds in every shot.

Common mistakes

  • Sending both keyframes and promptImage: exclusive alternatives; pick one.
  • Restating the first frame in an image-mode prompt: prompt motion and camera instead.
  • Passing aspectRatio as "16:9" or alongside image: pixel pairs only, and a first frame overrides it.
  • Asking Aleph for new motion or camera moves: the source's motion persists by design.

© scenario-labs, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

Just SKILL.md in skills/scenario-runway of scenario-labs/skills.

Open the folder on GitHubat commit f6f8ab7

Compare with similar skills

Scenario Runway next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Scenario Runway compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Scenario Runway this skillscenario-labs/skills946—~1.2kAutomated safety check: PassMIT
Edit VideoArcReel/ArcReel5.4k—~1.6kAutomated safety check: PassAGPL-3.0
Avatar Videocalesthio/OpenMontage66k—~1.6kAutomated safety check: PassAGPL-3.0
Cassette Video EditCassette-Editor/oh-my-cassette1191 repos~3.4kAutomated safety check: PassMIT
Beatdesign WorkspaceBeatAPI/BeatDesign1401 repos~632Automated safety check: PassApache-2.0
Blender MCP Videomicky-li-hd/VideoCoCo118—~1.1kAutomated safety check: PassNone

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Works with

Categories

Questions about Scenario Runway

What does Scenario Runway do?

A skill your agent uses when generating or editing video with Runway models on Scenario via MCP: text-to-video or image-to-video from a first frame with Gen4.5 (cinematic motion, sequenced actions…. Scenario Runway is an agent skill from scenario-labs/skills.5 (cinematic motion, sequenced actions, camera choreography), or video-to-video editing of real footage with Aleph 2 (remove objects, swap products, restyle or relight shots, keyframe-pinned reference images, motion and audio preserved).

When should I use Scenario Runway?

Scenario Runway fits situations like: editing video with Runway models on Scenario via MCP: text-to-video; image-to-video from a first frame with Gen4.5 (cinematic motion; sequenced actions; camera choreography).

How do I install Scenario Runway in Claude Code?

Run `npx skills add scenario-labs/skills --skill scenario-runway -a claude-code`. Or copy the skill folder (skills/scenario-runway in scenario-labs/skills) into .claude/skills/scenario-runway in your project. Claude Code loads it when a task matches its description.

How do I install Scenario Runway in Codex?

Run `npx skills add scenario-labs/skills --skill scenario-runway -a codex`. Or copy the skill folder (skills/scenario-runway in scenario-labs/skills) into .agents/skills/scenario-runway in your project. Codex loads it when a task matches its description.

Can I use Scenario Runway in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add scenario-labs/skills --skill scenario-runway -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/scenario-runway, .gemini/skills/scenario-runway, .github/skills/scenario-runway and .opencode/skills/scenario-runway in your project.

What does Scenario Runway need to run?

Going by SKILL.md and its folder, Scenario Runway needs the command-line tools its instructions call (npx). Our summary lists: Node.js.

Does Scenario Runway access the network?

SKILL.md contains no URLs. Its commands use npx, which can reach the network depending on how they are called. This is read from the text; nothing was executed.

Is Scenario Runway safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Scenario Runway use?

Scenario Runway is published under the MIT licence (declared in SKILL.md). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Scenario Runway use?

About 1.2k tokens (SKILL.md is roughly 4.7k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Scenario Runway?

Skills that share tags, products or a category with Scenario Runway: Edit Video (ArcReel/ArcReel, 5.4k stars), Avatar Video (calesthio/OpenMontage, 66k stars), Cassette Video Edit (Cassette-Editor/oh-my-cassette, 119 stars) and Beatdesign Workspace (BeatAPI/BeatDesign, 140 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Scenario Runway?

scenario-labs (a GitHub organization) maintains it in scenario-labs/skills, which has 946 GitHub stars. The repository holds 146 skills in this directory. The repository was last updated on October 10, 2026.

Source: scenario-labs/skills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.