What is n8n-workflow-debugger?

A coding skill for investigating failed n8n workflows. n8n is a tool for connecting services and automating tasks through visual workflows.

Use it to validate and lint workflows, inspect logs, check conditional branches, and troubleshoot webhook or node-parameter failures.

It helps locate invalid workflow structure, deleted-node references, duplicate properties, bad webhook settings, and missing retry or error handling.

n8n-workflow-debugger — Skill for Claude Code by mOHAD44DSFASF

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent

npx skills add mOHAD44DSFASF/flowforge-n8n --skill n8n-workflow-debugger

Clone the repo

git clone --depth 1 https://github.com/mOHAD44DSFASF/flowforge-n8n

Made for: Claude Code.

Or install flowforge-n8n, the plugin that ships this one along with the rest of its 3 skills, 12 commands.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

README.md

[![agentmods](https://agentmods.dev/badge/skills/mohad44dsfasf/flowforge-n8n/n8n-workflow-debugger.svg)](https://agentmods.dev/skills/mohad44dsfasf/flowforge-n8n/n8n-workflow-debugger)

Your own site

<a href="https://agentmods.dev/skills/mohad44dsfasf/flowforge-n8n/n8n-workflow-debugger"><img src="https://agentmods.dev/badge/skills/mohad44dsfasf/flowforge-n8n/n8n-workflow-debugger.svg" alt="Measured on agentmods" height="20"></a>

Per session 21 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 129 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

Origin original No closer match found in the catalogue.

Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

Model	Per session	Once invoked
Fable 5.1	$0.00021	$0.00129
Opus 5	$0.00010	$0.00064
Sonnet 5	$0.00004	$0.00026
Haiku 4.5	$0.00002	$0.00013

Measured 8d ago against content hash c4c3b7ae6bd2, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

n8n-workflow-debugger scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 8d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

skills/n8n-workflow-debugger/SKILL.md · 17 lines

What it actually says

n8n Workflow Debugger Skill

Provides strategies for auditing, debugging, and fixing n8n workflow errors.

When to Use

Use when users report webhook validation issues, duplicate properties failures, or workflow node parameter syntax crashes.

Debugging Workflow

Run flowforge validate to detect duplicate keys or references to deleted nodes.
Run flowforge lint to identify unconfigured retry/error strategies.
Check log details. Review conditional branch output indices.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

8d ago First seen · 17 lines · 21 tokens per session scan A c4c3b7ae6bd2

Subscribe to this mod's changes

n8n-workflow-debugger is a skill published in the GitHub repository mOHAD44DSFASF/flowforge-n8n (4 stars, last pushed 24d ago), licensed MIT. It adds 21 tokens to every session and 129 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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