Fix Your n8n AI Agent Before It Breaks
Four Phases to a Bulletproof Agent
Every optimization follows a rigorous, transparent process. You see exactly what changed and why.
1. Instant Diagnosis
Upload your n8n workflow JSON + system prompt. Our AI searches the latest n8n docs in real-time and identifies critical issues: ambiguity, missing formats, tool mismatches, and expression errors.
2. Iterative Optimization
We apply 7 concrete optimization steps: Structure Injection, Tool Alignment, Memory Hardening, Anti-Hallucination Guards, Error Handling, Expression Sanitization, and Final Polish. Each step is logged with before/after diffs.
3. Static Validation
A simulated agent interaction verifies that your optimized prompt correctly instructs the LLM to output valid tool calls and JSON. We catch schema mismatches, missing keys, and hallucinated tools before deployment.
4. Live Sandbox
Enter a test message and watch a real tool-calling loop execute using the same Minimax API that n8n would call. Mock tools return realistic responses. We flag hallucinations, invalid JSON, infinite loops, and broken error handling.
Why AgentRefine?
We built this because we were tired of n8n AI agents failing silently. Every feature solves a real pain point we experienced in production.
Real-Time Doc Search
MiniMax M3 searches the latest n8n documentation before analyzing your prompt. No outdated advice.
Transparent Optimization
Every change is explained with before/after diffs. You learn while your prompt improves.
Live Sandbox Testing
Run real LLM calls against mock tools before deploying. Catch hallucinations and loops early.
Schema Validation
Verify that your optimized prompt actually produces valid JSON and correct tool parameters.
Self-Correcting Loop
AI evaluates its own work against a 10-point checklist. Re-iterates until score >= 90/100.
Zero Infrastructure
No vector DB, no embeddings, no complex setup. Just Next.js + PostgreSQL + API keys.
Start Your Free n8n Agent Diagnosis
Upload your n8n workflow file (.json) or paste your prompt instructions below. System prompt is auto-extracted from workflow JSON!