/record-promo

name: record-promo
description: Record an autonomous 50 FPS promo video of your game for social media. Use when the user says "record a video", "make a promo", "capture gameplay", "record gameplay footage", or "make a trailer for my game". Do NOT use for gameplay testing (use qa-game).
argument-hint: "[path-to-game]"
license: MIT
metadata:
  author: OpusGameLabs
  version: 1.3.0
  tags: [game, video, promo, recording, playwright, ffmpeg]

Record Promo Video

Autonomously capture smooth, high-FPS gameplay footage of your Phaser game — ready for TikTok, Reels, Moltbook, or X. No human input needed during recording.

Instructions

Record a promo video of the game at `$ARGUMENTS` (or the current directory if no path given).

1. Pre-checks

Verify these are available:

• **Dev server**: Check if one is already running (`curl -s http://localhost:3000/`). If not, start one with `npm run dev` in the background. Note the port.
• **Playwright**: `npx playwright --version`. If not installed: `npm install -D @playwright/test && npx playwright install chromium`
• **FFmpeg**: `ffmpeg -version | head -1`. If not found, tell the user to install it (`brew install ffmpeg` on macOS) and stop.

2. Generate the capture script

Load the `promo-video` skill for the full technique reference.

Read the game's source files to understand:

• `src/scenes/GameScene.js` — find death/failure methods to patch out
• `src/core/EventBus.js` — event flow
• `src/core/Constants.js` — input keys, game dimensions
• `src/main.js` — verify `__GAME__` and `__GAME_STATE__` globals are exposed

Create `scripts/capture-promo.mjs` adapted for this specific game:

• Patch out ALL death/failure code paths
• Generate input sequences matching the game's actual controls
• Include entrance animation pause (1-2s)
• Default viewport: `1080 × 1920` (9:16 mobile portrait)
• Default duration: 13s game-time

3. Copy the conversion script

cp <plugin-root>/skills/promo-video/scripts/convert-highfps.sh <project-dir>/scripts/
chmod +x <project-dir>/scripts/convert-highfps.sh

4. Run the capture

mkdir -p output
node scripts/capture-promo.mjs --port <port>
bash scripts/convert-highfps.sh output/promo-raw.webm output/promo.mp4 0.5

5. Verify and preview

Extract a thumbnail at the 5-second mark and show it to the user:

ffmpeg -y -ss 5 -i output/promo.mp4 -frames:v 1 -update 1 output/promo-thumbnail.jpg

Read the thumbnail image and display it. Report duration, frame rate, and file size.

Example Usage

/record-promo examples/flappy-bird

Result: Patches out death → generates input sequence for the game's controls → captures 13s of autonomous gameplay at 1080x1920 (9:16) → converts to 50 FPS MP4 → `output/promo.mp4` ready for TikTok/Reels.

Tell the user: > Promo video recorded! 50 FPS, mobile portrait (1080×1920). > > **File**: `output/promo.mp4` > > Post it to TikTok, Reels, or X to drive traffic to your game.