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echook-promo-video: Instructions file for Claude Code

CLAUDE.md

echook-promo-video CLAUDE.md is an instructions file for Claude Code from ChanMeng666/echook-promo-video. It costs 1,337 tokens per session, scanned A, original, MIT.

A project guide for building a promotional video with Remotion, a React-based video framework. It documents the project’s tools, commands, structure, scenes, transitions, music, sound effects, and voiceover.

In plain words
What is it for?
Use it when working on the video’s React and TypeScript code, running the live preview, checking the project, rendering an MP4, or generating audio.
Why use it?
It gives coding agents the project context needed to preview, check, render, and generate audio for the video.

Instructions file for Claude Code

Written for Claude Code: the file is CLAUDE.md. Also seen: mentions CLAUDE.md; mentions Claude Code.

This is ChanMeng666/echook-promo-video's own configuration. It tells Claude Code how to work on echook-promo-video itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything echook-promo-video configures →

not rated 2repo 2mo ago A scan 1,337 tokens original MIT
View source ↗ ChanMeng666/echook-promo-video
Reuse

Borrowing it

Nothing to install: this file belongs to ChanMeng666/echook-promo-video. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/ChanMeng666/echook-promo-video/main/CLAUDE.md
Clone the repo
git clone --depth 1 https://github.com/ChanMeng666/echook-promo-video

Made for: Claude Code.

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Per session 1,337 This file is loaded in full into every session.
When invoked 1,337 The same file — it is already loaded in full.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
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 5.1 $0.01337 $0.01337
Opus 5 $0.00668 $0.00668
Sonnet 5 $0.00267 $0.00267
Haiku 4.5 $0.00134 $0.00134

Measured 10d ago against content hash 217728e6b599, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

echook-promo-video CLAUDE.md 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 10d ago.

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.

CLAUDE.md · 143 lines

How it starts

The opening of the file, as written. The whole thing — 143 lines — stays where its author put it; the contents beside it link to each section on GitHub.

CLAUDE.md - Project Guidelines for Claude Code

Project Overview

This is a Remotion-based promotional video project. The video is composed entirely in React/TypeScript, rendered to MP4 via Remotion's CLI.

Tech Stack

  • Remotion 4.0.421 - Video framework (React-based)
  • React 19 + TypeScript 5.9
  • @remotion/transitions - Scene transitions (fade, wipe, slide)
  • @remotion/google-fonts - Inter font
  • @remotion/media - Video embedding
  • react-icons - SVG icons (FontAwesome set)
  • ElevenLabs API - AI voiceover and sound effects
  • Suno - AI background music

Key Commands

npm run dev          # Start Remotion Studio (live preview)
npm run render       # Render to out/promo-video.mp4
npm run lint         # ESLint + TypeScript check
npm run generate-audio  # Generate audio via ElevenLabs API

Architecture

Entry Flow

src/index.ts -> src/Root.tsx -> src/PromoVideo.tsx

PromoVideo.tsx

The main orchestrator with two layers:

  1. Audio Layer: Background music + SFX/VO placed at exact global frames via <Sequence from={frame}>
  2. Visual Layer: 7 sections connected via <TransitionSeries> with transitions between them

Constants (src/constants.ts)

All timing, colors, and dimensions are centralized here:

  • DURATIONS - Frame counts for each section and transition
  • TOTAL_FRAMES - Must equal sum of all section durations minus transition overlaps
  • COLORS - Brand colors (#16F800 green, #000000 black)
  • FPS - 30
  • WIDTH/HEIGHT - 1920x1080

Global Timeline Calculation

TransitionSeries overlaps adjacent sections during transitions. To calculate the effective start frame of each section:

Section N start = Section (N-1) start + Section (N-1) duration - Transition duration

When changing durations, you MUST recalculate:

  1. TOTAL_FRAMES in constants.ts
  2. All audio <Sequence from={}> positions in PromoVideo.tsx
  3. BackgroundMusic ducking ranges in PromoVideo.tsx

The current timeline is documented in the comment block at the top of PromoVideo.tsx.

Read the full file on GitHub · 143 lines

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. 10d ago First seen · 143 lines · 1,337 tokens per session scan A 217728e6b599

Subscribe to this mod's changes

echook-promo-video CLAUDE.md is an instructions file published in the GitHub repository ChanMeng666/echook-promo-video (2 stars, last pushed 2mo ago), licensed MIT. It adds 1,337 tokens to every session, about $0.0067 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.

Claude CodeCreative and mediaai-generated-audioai-toolselevenlabsprogrammatic-video
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