You are helping me build the following AI agent workflow.

## Goal
Cinematic Quote Video Creation and YouTube Upload: Fetches quotes from a sheet, generates AI visuals and audio, overlays text with FFmpeg, and uploads the final video to YouTube.

## Specification
- What it does: Produce professional vertical quote videos automatically by fetching content from Google Sheets, generating AI visuals and audio, and uploading the final result to YouTube. This workflow eliminates manual editing steps like selecting visuals, syncing audio, and adding typography, allowing you to maintain a consistent content pipeline for platforms like YouTube Shorts or Instagram Reels with minimal effort.
- Trigger: Run manually (Manual · on demand)
- Autonomy: Fully hands-off
- Expected setup effort: a few focused days
- Tools/services involved:
  - Google Sheets: Store quotes and manage content records
  - Flux AI: Generate vertical background images via txt2img API
  - Kling: Transform images into animated cinematic videos
  - ElevenLabs: Generate ambient background sound via API
  - FFmpeg: Overlay text and combine media assets

## Known pitfalls, handle each one explicitly in your implementation
1. Kling video generation can exceed time limits, so ensure your prompt specifies a short duration like 5 seconds to avoid queue failures.
2. ElevenLabs audio might not sync perfectly with visual cuts, so add a silent padding track in FFmpeg to align the endpoints.
3. YouTube upload may fail due to copyright flags on background music, so use royalty-free ambient sounds instead of licensed tracks.

## Reference implementation
https://n8n.io/workflows/3438 (workflow template)
Fetch and inspect this before building. If it matches my stack, adapt it;
if not, rebuild the pattern with my tools.

## Process requirements
1. Before building: ask me which of the listed tools I actually use and
   what my platform is (n8n / Make / code / other). Do not assume.
2. Adapt the pattern to my answers; do not force the reference stack.
3. Address every pitfall above; tell me how you handled each.
4. Provide a test plan I can run before letting this touch real data.
5. Ask before any step that sends messages, modifies data, or spends money.

Source: https://usecasesforagents.com/use-case/automate-cinematic-quote-video-creation-and-youtube-upload/ via usecasesforagents.com