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debugging-executions

NOASSERTIONUpdated on Nov 11, 2026210,138GitHub stars

A skill for n8n's built-in AI assistant (Instance AI) that it loads when a workflow execution fails, a node returns wrong or empty output, or an expression shows an error.

InstallRepository Checked on Nov 12, 2026

What the skill teaches

A skill for n8n's built-in AI assistant (Instance AI) that it loads when a workflow execution fails, a node returns wrong or empty output, or an expression shows an error. Using n8n's execution and workflow tools, the assistant re-runs the failing path and inspects the real result before saying anything is fixed, and treats errors, unreached nodes and empty outputs as real defects rather than explaining them away. Before naming a cause it says what it checked; for authentication errors it confirms the credential exists, is attached to the node and passes n8n's credential test. These read-only checks on the n8n side run without asking the user first.

Capabilities

  • Re-run a failing workflow path and inspect the result
  • Check credentials behind 401 and 403 errors
  • Investigate empty or wrong node output
  • State what was checked before naming a cause

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