You are helping me build the following AI agent workflow.

## Goal
Multi-Platform Video Publisher Descriptions: Drop a video in Google Drive and the agent transcribes it, writes platform-specific descriptions.

## Specification
- What it does: Upload a video to your Google Drive folder and let this agent handle the rest by transcribing it, crafting optimized descriptions for Instagram, TikTok, and YouTube, and publishing them all at once. It then automatically updates your Airtable with the final publication status and links so you can track everything in one place.
- Trigger: Triggered by an event (Event · on new video in Google Drive)
- Autonomy: Fully hands-off
- Expected setup effort: about an afternoon
- Tools/services involved:
  - Google Drive: Detecting new video uploads
  - OpenAI: Transcribing audio and generating descriptions
  - upload-post.com API: Publishing videos to Instagram, TikTok, and YouTube
  - Airtable: Tracking status and metadata

## Known pitfalls, handle each one explicitly in your implementation
1. Video files can exceed API payload size limits so you must stream or chunk the audio data before sending it to OpenAI.
2. Social platforms have strict content policies so add a moderation step to flag potentially banned keywords in the generated text.
3. Airtable record creation might fail if required fields are missing so validate all payload data before making the API call.

## Reference implementation
https://n8n.io/workflows/5787 (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/multi-platform-video-publisher-with-ai-descriptions/ via usecasesforagents.com