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n8n-error-handling

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Wire n8n error handling so failures are loud, structured, and recoverable. Use when building any webhook/API workflow, a scheduled or unattended workflow, or any path where a silent failure would drop user-visible work — and whenever the user mentions error handling, onError, continueErrorOutput, error branches/outputs, retries, retryOnFail, Respond to Webhook status codes, 4xx/5xx, Error Trigger, or "my workflow fails silently". Covers per-node error outputs and wiring, retry/self-healing, error-trigger workflows, and 4xx/5xx response shapes.

skills/n8n-error-handling/SKILL.md

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Oct 24, 2026
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# n8n Error Handling

By default, when an n8n node throws, the **whole workflow halts**. For an interactive run you're watching, that's fine — you see the red node and fix it. For anything unattended (a webhook API, a cron job, a queue worker, an agent tool), it's the wrong default: the caller gets a timeout or an empty 500, the operator gets no alert, and the symptom is "the integration just stopped working" with no log and no clue.

This skill is about making failures **loud, structured, and recoverable** — and, best case, **self-healing** so transient blips never reach a human at all.

The two ideas that prevent most silent failures:

- **Per-node error outputs** — a node's failure routes down a second output you control, instead of killing the run.
- **A workflow-level error workflow** — a catch-all that fires for anything that escapes per-node handling (timeouts, crashes between nodes, unwired failures).

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## When you actually need this
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