You are helping me build the following AI agent workflow.

## Goal
Conversational Meta Ads Reporting & Management: Chat with your Meta Ads data to list accounts, view campaign details.

## Specification
- What it does: Chat with your Meta Ads data to instantly list accounts and view campaign details like spend or ROAS. You get these performance insights through simple conversation instead of logging into Ad Manager directly.
- Trigger: Run manually (Manual · on demand)
- Autonomy: You stay in control
- Expected setup effort: about an afternoon
- Tools/services involved:
  - OpenAI Chat Model: LLM processing and conversation
  - Facebook Graph API: Fetching ad account data and performance metrics
  - AI Agent: Orchestrating the conversational flow
  - Simple Memory: Maintaining conversation context

## Known pitfalls, handle each one explicitly in your implementation
1. Ad account permissions vary by user role, so validate access rights before querying specific campaign IDs to avoid silent failures.
2. Memory nodes can accumulate irrelevant context over time, so implement a token limit or summarization step to keep responses fast and accurate.
3. PII data in ad reports must be handled carefully, so ensure your system prompt explicitly forbids storing or displaying sensitive user information.

## Reference implementation
https://n8n.io/workflows/7957 (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/conversational-meta-ads-reporting-management/ via usecasesforagents.com