You are helping me build the following AI agent workflow.

## Goal
Video Ad Clone Factory: Turns a single source video into multiple ad variants by cloning scenes with AI-generated visuals, music.

## Specification
- What it does: Turn your single source video into multiple high-performing ad variants by cloning scenes with AI-generated visuals and music. You get fresh images and video clips that maintain brand consistency while the system automatically merges them with generated audio to publish final assets ready for use.
- Trigger: Triggered by an event (Manual · on demand)
- Autonomy: Fully hands-off
- Expected setup effort: a few focused days
- Tools/services involved:
  - Airtable: Data storage and workflow state management
  - OpenAI Chat Model: Prompt engineering and script generation
  - Google Gemini: Video analysis and scene breakdown
  - NanoBanana: AI image generation for ad scenes
  - Kling: Cinematic video clip generation

## Known pitfalls, handle each one explicitly in your implementation
1. Video analysis models may miss subtle contextual cues, so add a manual review step for critical brand elements.
2. Inconsistent style between generated clips can break immersion, use detailed negative prompts in the media generation stage.
3. Audio and video synchronization issues often arise in automated pipelines, add a post-processing step to align timestamps.

## Reference implementation
https://n8n.io/workflows/13015 (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/automated-video-ad-clone-factory/ via usecasesforagents.com