Systematically debug failing n8n workflows — expression errors, node type mismatches, pinned data issues, sub-workflow failures, authentication problems, rate limit errors, and silent data loss. Use this skill whenever the user reports an n8n workflow problem — phrases like "my n8n workflow is faili
Systematically debug failing n8n workflows — expression errors, node type mismatches, pinned data issues, sub-workflow failures, authentication problems, rate limit errors, and silent data loss. Use this skill whenever the user reports an n8n workflow problem — phrases like "my n8n workflow is failing", "this expression isn't working", "why is this node returning empty", "debug this error", "n8n e