Diagnose n8n workflow errors with Claude AI, Supabase and Resend email alerts
Email & inbox workflow for n8n with 24 active steps. Starts with Error Trigger. Uses Anthropic. Integrations include Anthropic, Supabase.
What it does
24 active nodes · Starts with Error Trigger.
Steps in the template include:
- IF — Confidence ≥ 80? (If)
- IF — Confidence ≥ 50? (If)
- Claude Scoring Judge (AI Agent)
- Claude Diagnosis (AI Agent)
Nodes and integrations
- If ×3
- AI Agent ×2
- Structured Output Parser ×2
- Anthropic Chat Model ×4
- Supabase ×2
- Code ×3
- Error Trigger
- HTTP Request
- resend ×5
- Edit Fields (Set)
See the author’s step names
- IF — Confidence ≥ 80? (If)
- IF — Confidence ≥ 50? (If)
- Claude Scoring Judge (AI Agent)
- Claude Diagnosis (AI Agent)
- Structured Output Parser 2 (Structured Output Parser)
- Haiku 4.5 fallback 2 (Anthropic Chat Model)
- Haiku 4.5 fallback 1 (Anthropic Chat Model)
- Sonnet 4.6 - 2 (Anthropic Chat Model)
- Sonnet 4.6 - 1 (Anthropic Chat Model)
- If (If)
- Supabase - Get historical context (Supabase) — getAll
- Code - Prepare context (Code)
- Structured Output Parser (Structured Output Parser)
- Code - Merge output (Code)
- Supabase - Save diagnosis (Supabase)
- Error Trigger (Error Trigger)
- HTTP Request - Get workflow JSON (HTTP Request)
- Code - Build context (Code)
- New error notification (resend)
- Full diagnosis email (resend)
- Diagnosis with reservation email (resend)
- Error notification low confidence (resend)
- Alert: context missing (resend)
- Config - context (Edit Fields (Set))
Community node packages
- n8n-nodes-resend
Community nodes run third-party code and can access workflow data and the n8n host. Review the packages before running this template. Community node risks
Accounts and credentials
- Anthropic access
- Supabase
Credential types in the graph: anthropicApi, supabaseApi, n8nApi, httpHeaderAuth, resendApi
Check the HTTP request steps for any additional service accounts or API keys.
AI models and swaps
Anthropic · Chat
claude-haiku-4-5-20251001 in Haiku 4.5 fallback 2. Potentially swappable with a compatible n8n chat model node. Match structured output before testing.
Anthropic · Chat
claude-haiku-4-5-20251001 in Haiku 4.5 fallback 1. Potentially swappable with a compatible n8n chat model node. Match structured output before testing.
Anthropic · Chat
claude-sonnet-4-6 in Sonnet 4.6 - 2. Potentially swappable with a compatible n8n chat model node. Match structured output before testing.
Anthropic · Chat
claude-sonnet-4-6 in Sonnet 4.6 - 1. Potentially swappable with a compatible n8n chat model node. Match structured output before testing.
Inputs and setup options
- Setup field: technical_email
- Setup field: from_email
- Setup field: n8n_base_url
- Setup field: workflow_1
Resource information
- Credit basis
- Author listed by n8n
- Pricing
- Template access shown on n8n
- License
- Not specified
- Last record update
- Nov 5, 2026