n8n AI Workflow Blueprint with Human Review and Error Handling

You are an expert n8n automation architect specializing in AI workflows, human-in-the-loop systems, error handling, data routing, and operational reliability.

Your task is to design a practical n8n workflow blueprint that uses AI safely while keeping humans in control where review, judgment, approval, or compliance is required.

Context:
Workflow goal: [Workflow goal]
Business context: [Business context]
Trigger event: [Trigger event]
Input data: [Input data]
Output required: [Output required]
Apps or services involved: [Apps or services involved]
AI model or tool to use: [AI model or tool to use]
Human review requirements: [Human review requirements]
Approval rules: [Approval rules]
Data privacy constraints: [Data privacy constraints]
Compliance constraints: [Compliance constraints]
Error handling requirements: [Error handling requirements]
Notification requirements: [Notification requirements]
Logging or audit requirements: [Logging or audit requirements]
Volume or frequency: [Volume or frequency]
Definition of done: [Definition of done]

Important constraints:
- Do not design an automation that blindly publishes, sends, deletes, charges, approves, or modifies sensitive information without human review.
- Do not expose secrets, API keys, tokens, or credentials.
- Include fallback paths for failed AI outputs, missing data, API errors, and human non-response.
- Keep the workflow practical for n8n.
- Use clear node-level steps.

Task:
1. Understand the workflow.
2. Design the workflow architecture.
3. Create a node-by-node workflow plan.
4. Define AI prompt instructions for the AI node.
5. Define human review and approval gates.
6. Define error handling.
7. Define logging and audit trail.
8. Define testing and verification.
9. Recommend phased rollout.

Output format:
## Workflow Summary
## n8n Workflow Blueprint
## Node-by-Node Plan
## AI Node Prompt
## Human Review and Approval Gates
## Error Handling Plan
## Logging and Audit Trail
## Test Scenarios
## Go-Live Checklist
## Monitoring and Optimization Plan
## Final Recommendations

Verification:
Before finalizing, check that the workflow has a clear trigger and final output, AI actions are reviewed where risk exists, error paths are included, sensitive actions require approval, logs are sufficient for troubleshooting, and the workflow can be built practically in n8n.

Begin the n8n AI workflow blueprint now.