remotion-upgrade

A maintenance workflow for upgrading Remotion, the React-based video-rendering framework, and its related packages.

In plain words
What is it for?
Use it to upgrade Remotion dependencies and update the lockfile and related project skills while preserving the project's workspace conventions.
Why use it?
It identifies the project's package setup and keeps Remotion packages, compatible Mediabunny packages, and local Remotion guidance aligned.

Skill for Claude CodeCodex

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/remotion-dev/cursor-plugin/remotion-upgrade
Any agent
npx skills add remotion-dev/cursor-plugin --skill remotion-upgrade
Clone the repo
git clone --depth 1 https://github.com/remotion-dev/cursor-plugin

Made for: Claude Code, Codex.

Per session 12 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 427 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00012 $0.00427
Opus 5 $0.00006 $0.00214
Sonnet 5 $0.00002 $0.00085
Haiku 4.5 $0.00001 $0.00043

Measured yesterday against content hash 3c1b4e806e53, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

remotion-upgrade scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured yesterday.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

skills/remotion-upgrade/SKILL.md · 32 lines

What it actually says

Upgrade Remotion

  1. Inspect the project manifests and lockfile to identify the package manager and workspaces. Preserve unrelated changes.

  2. Determine whether @remotion/cli is locally available. If it is, run:

    npx remotion upgrade
    

    This also updates project-local Remotion skills. Skip the manual upgrade below.

  3. If @remotion/cli is not available, upgrade manually:

    • Get the latest stable Remotion version with npm view remotion version.
    • Find every installed remotion and @remotion/* dependency across the project and upgrade them all to that exact version. Preserve their dependency sections and the project's workspace or catalog conventions.
    • Read the current Mediabunny compatibility page and determine the Mediabunny version compatible with the target Remotion version. Upgrade every installed mediabunny and @mediabunny/* package to the documented compatible version.
    • Run the project's package manager to update its lockfile.
  4. If @remotion/cli is not available, update the installed Remotion skills:

    npx skills update remotion-best-practices remotion-captions remotion-create remotion-docs remotion-interactivity remotion-maps remotion-markup remotion-multimedia remotion-render remotion-saas remotion-studio remotion-upgrade --yes
    
  5. Review the manifest and lockfile diff. Ensure all Remotion packages use one version and all installed Mediabunny packages use the compatible version. If the CLI is available, run npx remotion versions as an additional check.

The Remotion releases contain the changelog and may be useful for summarizing relevant changes after the upgrade.

Files

What ships with it

2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. yesterday First seen · 32 lines · 12 tokens per session scan A 3c1b4e806e53

Subscribe to this mod's changes

remotion-upgrade is a skill published in the GitHub repository remotion-dev/cursor-plugin (0 stars, last pushed 2d ago), licensed MIT. It adds 12 tokens to every session and 427 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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