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.
npx agentmods add skills/remotion-dev/remotion/add-webcodecs-bugnpx skills add remotion-dev/remotion --skill add-webcodecs-buggit clone --depth 1 https://github.com/remotion-dev/remotionWhat 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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5 | $0.00086 | $0.00400 |
| Opus 5 | $0.00043 | $0.00200 |
| Sonnet 5 | $0.00017 | $0.00080 |
| Haiku 4.5 | $0.00009 | $0.00040 |
Grade A, and why
add-webcodecs-bug 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.
The source is not reproduced here
No licence file
A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.
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.
- yesterday First seen · 29 lines · 86 tokens per session scan A 6107495f79e6
add-webcodecs-bug is a skill published in the GitHub repository remotion-dev/remotion (57,772 stars, last pushed 3d ago), with no licence file. It adds 86 tokens to every session and 400 once invoked, about $0.0004 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 2026-08-30.
Other skills, from other repositories
remocn
Build Remotion videos with remocn — copy-paste animation components and timeline-driven UI primitives from a shadcn registry. Use when composing a video or scene in a Remotion project, adding a single animation, transition, background, or UI-block sim, or reaching for a video-ready UI primitive (button, dialog…
c-video-edit
Programmatic video creation using Remotion (React-based) and Editly (JSON-based declarative). Create, render, and compose videos from code.
react-native-docs
Comprehensive React Native reference covering core components, APIs, styling, flexbox, navigation, networking, animations, platform-specific code, debugging, performance, TypeScript integration, Fast Refresh, environment setup, React fundamentals, running on devices, and the New Architecture (Fabric, JSI…
remotion-bits
Animation components and utilities for Remotion video projects. Use when building Remotion compositions with text animations, gradient transitions, particle effects, 3D scenes, or staggered motion effects. Provides example bits (complete compositions) and reusable components that can be installed via jsrepo.
release
Release remotion-bits to GitHub, Cloudflare, and npm. Use when bumping the package version, updating CHANGELOG.md, building the registry, creating the release commit, pushing master, opening a prefilled GitHub release form, deploying docs, and publishing to npm.
compiler-orchestrator
Orchestrate the Rust compiler port end-to-end. Discovers the current frontier, fixes failing passes, ports new passes, reviews, and commits in a loop.