You are helping me build the following AI agent workflow.

## Goal
Proposal Generation: Submit business challenges via form; GPT-4 generates a branded Google Slides proposal and emails it to the prospect.

## Specification
- What it does: Turn business challenges and requirements into a professional, customized Google Slides proposal sent directly to prospects. The system analyzes your input via AI, populates your branded template with personalized content, and delivers the presentation link via email without manual effort.
- Trigger: Triggered by an event (Manual · on form submission)
- Autonomy: Fully hands-off
- Expected setup effort: under an hour
- Tools/services involved:
  - OpenAI: Analyze input and generate proposal text
  - Google Slides: Create presentation with personalized content
  - Gmail: Send proposal email to prospect

## Known pitfalls, handle each one explicitly in your implementation
1. Template element IDs change if the design is edited, so pin your template version or use a script to validate IDs before deployment.
2. Long text blocks will overflow slide placeholders so truncate or summarize content that exceeds the box dimensions.
3. OpenAI tokens can be consumed quickly by verbose prompts so set strict token limits and cache common responses.

## Reference implementation
https://n8n.io/workflows/5082 (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-proposal-generation/ via usecasesforagents.com