n8n-validation-expert

Interpret validation errors and guide fixing them. Use when encountering validation errors, validation warnings, false positives, operator structure issues, or need help understanding validation results. Also use when asking about validation profiles, error types, the validation loop process, or auto-fix capabilities. Consult this skill whenever a validate_node or validate_workflow call returns errors or warnings — it knows which warnings are false positives and which errors need real fixes.

Quality

—

Does it follow best practices?

Impact

—

No eval scenarios have been run

Securityby

Passed

No known issues

Quality

Content

77%

Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.

A highly actionable, well-sequenced validation skill with concrete code and clear feedback loops, undermined by some telemetry padding and, more importantly, by references to bundle files that are not present in the skill bundle.

Suggestions

Add the missing referenced files (ERROR_CATALOG.md, FALSE_POSITIVES.md, REVIEW_CHECKLIST.md) to the bundle, or remove the links and inline only the essential content.

Drop the telemetry filler ("7,841 occurrences", "23s thinking / 58s fixing") and the redundant Summary section to tighten token efficiency.

Consolidate the recurring "n8n-mcp ≥ 2.63.0" version qualifiers into a single noted compatibility line or a deprecated/old-patterns section instead of repeating them inline.

Dimension	Reasoning	Score
Conciseness	Mostly efficient and dense with n8n-specific operational knowledge Claude lacks, but padded with telemetry filler ("7,841 occurrences", "23 seconds thinking", "58 seconds fixing") and a redundant Summary section, while time-sensitive version qualifiers ("n8n-mcp ≥ 2.63.0") are scattered inline rather than isolated in a deprecated/old-patterns section.	2 / 3
Actionability	Provides fully executable, copy-paste-ready code for validate_node, validate_workflow, cleanStaleConnections, and n8n_autofix_workflow with concrete parameters, plus specific error types each paired with a fix action.	3 / 3
Workflow Clarity	The validation loop is explicitly sequenced (validate → read errors → fix → validate again) with a feedback loop and checkpoint ("Repeat until valid"), and recovery strategies are laid out as numbered steps — exactly the validate→fix→retry pattern the rubric rewards.	3 / 3
Progressive Disclosure	References are well-signaled and one level deep (ERROR_CATALOG.md, FALSE_POSITIVES.md, REVIEW_CHECKLIST.md with described purposes), but those bundle files do not actually exist in the workspace — the navigation points to missing targets.	2 / 3
	Total	10 / 12 Passed

Description

100%

Based on the skill's description, can an agent find and select it at the right time? Clear, specific descriptions lead to better discovery.

A strong, specific description with explicit 'what' and 'when' clauses and concrete tool-call triggers tied to a distinct n8n niche. It uses third-person/imperative voice throughout and avoids vague fluff.

Dimension	Reasoning	Score
Specificity	Lists multiple concrete actions — "Interpret validation errors and guide fixing them", plus handling false positives, operator structure issues, validation profiles, error types, the validation loop, and auto-fix capabilities.	3 / 3
Completeness	Explicitly answers both what ("Interpret validation errors and guide fixing them") and when ("Use when encountering validation errors..." / "Consult this skill whenever a validate_node or validate_workflow call returns errors or warnings").	3 / 3
Trigger Term Quality	Good coverage of natural trigger terms a n8n user would say — "validation errors", "validation warnings", "false positives", "validation profiles", "error types", "validation loop", and the concrete tool calls "validate_node or validate_workflow call returns errors or warnings".	3 / 3
Distinctiveness Conflict Risk	Clear n8n-validation niche with triggers tied to specific MCP tool calls (validate_node/validate_workflow), making it unlikely to fire for unrelated skills.	3 / 3
	Total	12 / 12 Passed

Validation

93%

Warnings & errors only

Checks the skill against the spec for correct structure and formatting. All validation checks must pass before discovery and implementation can be scored.

Validation — 15 / 16 Passed

Validation for skill structure

Criteria	Description	Result
relative_links	Relative link issues: 7 missing	Warning

	Total	15 / 16 Passed

Repository: czlonkowski/n8n-skills
Commit: b90ba12

Reviewed: 4 days ago

Table of Contents

Discovery Implementation Validation

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