n8n-validation-expert
Expert guide for interpreting and fixing n8n validation errors.
Profile →npx skills add sickn33/agentic-awesome-skills --skill n8n-validation-expert --agent claude-code
Same command for any agent — swap --agent for codex, cursor, copilot.
Weekly change comes from our own snapshots, not the repository page — it measures attention, not adoption.
# n8n Validation Expert Expert guide for interpreting and fixing n8n validation errors. ## When to Use - You need to interpret or fix validation errors in an n8n workflow. - The task involves `missing_required`, `invalid_value`, expression failures, or iterative validate-fix loops. - You want concrete remediation guidance for workflow validation output. --- ## Validation Philosophy **Validate early, validate often** Validation is typically iterative: - Expect validation feedback loops - Usually 2-3 validate → fix cycles - Average: 23s thinking about errors, 58s fixing them **Key insight**: Validation is an iterative process, not one-shot! --- ## Error Severity Levels ### 1. Errors (Must Fix) **Blocks workflow execution** - Must be resolved before activation **Types**: - `missing_required` - Required field not provided - `invalid_value` - Value doesn't match allowed options - `type_mismatch` - Wrong data type (string instead of number) - `invalid_reference` - Referenced node doesn't exist - `invalid_expression` - Expression syntax error **Example**: ```json { "type": "missing_required", "property": "channel", "message": "Channel name is required", "fix": "Provide a channel name (low
- When to Use
- Validation Philosophy
- Error Severity Levels
- 1. Errors (Must Fix)
- 2. Warnings (Should Fix)
- 3. Suggestions (Optional)
- The Validation Loop
- Pattern from Telemetry
- Example
- Validation Profiles
- minimal
- runtime (RECOMMENDED)
- ai-friendly
- strict
What does the n8n-validation-expert skill do?
Expert guide for interpreting and fixing n8n validation errors.
How do I install it?
Run `npx skills add sickn33/agentic-awesome-skills --skill n8n-validation-expert --agent claude-code` — it drops the skill into your project so the agent can pick it up. Swap the --agent value for codex, cursor or copilot if you use one of those.
Where does this skill come from?
From sickn33/agentic-awesome-skills, a repository with 44,414 stars. We read it straight from the repository tree rather than a submitted listing, so what you see here is what is actually published.
Is a popular skill a good skill?
Not necessarily. Stars measure attention, not adoption — a repository can trend for a week and be abandoned. That is why we show the weekly change from our own snapshots next to the total, instead of a single flattering number.