claude-forge: Skill for Claude Code

.claude/skills/forge-n8n/SKILL.md

forge-n8n is a skill for Claude Code from ForgeyClap/claude-forge. It costs 43 tokens per session (432 once invoked), scanned A, original, MIT.

A Forge playbook for building and checking n8n automation workflows. n8n is a tool for connecting triggers, services, and processing steps into automated flows.

In plain words
What is it for?
Use it to create or modify n8n webhooks, scheduled jobs, triggers, branches, retries, credentials, and validation checks.
Why use it?
It helps ensure workflows have the right inputs, credentials, security, error handling, retries, and testing setup before activation.

Skill for Claude Code

Written for Claude Code: installed under .claude/. Also seen: mentions Codex.

This is ForgeyClap/claude-forge's own configuration. It tells Claude Code how to work on claude-forge itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything claude-forge configures →

Reuse

Borrowing it

Nothing to install: this file belongs to ForgeyClap/claude-forge. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/ForgeyClap/claude-forge/main/.claude/skills/forge-n8n/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/ForgeyClap/claude-forge

Made for: Claude Code.

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.

agentmods badge for forge-n8n

README.md
[![agentmods](https://agentmods.dev/badge/skills/forgeyclap/claude-forge/forge-n8n.svg)](https://agentmods.dev/skills/forgeyclap/claude-forge/forge-n8n)
Your own site
<a href="https://agentmods.dev/skills/forgeyclap/claude-forge/forge-n8n"><img src="https://agentmods.dev/badge/skills/forgeyclap/claude-forge/forge-n8n.svg" alt="Measured on agentmods" height="20"></a>
Per session 43 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 432 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00043 $0.00432
Opus 5 $0.00022 $0.00216
Sonnet 5 $0.00009 $0.00086
Haiku 4.5 $0.00004 $0.00043

Measured 7d ago against content hash 02ca14bceebd, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

forge-n8n 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 7d 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.

.claude/skills/forge-n8n/SKILL.md · 27 lines

What it actually says

Forge playbook — n8n / automation

This domain is skill + MCP driven, not agent-heavy. Do not spawn a crowd of agents. Do not duplicate ECC n8n skills — defer to them.

Hard rules

  • Validate before claiming production-ready: webhook method, input schema, credentials, auth/security, error branch present, retry behavior, test/prod separation.
  • Credentials live in n8n credential store / env — never hardcoded in nodes.
  • Imported/new workflows stay inactive until the owner approves activation.

Workflow

  1. Consult n8n-mcp-tools-expert first (correct nodeType formats + tool selection).
  2. Architecture from n8n-workflow-patterns; node setup from n8n-node-configuration; expressions from n8n-expression-syntax.
  3. Code nodes → n8n-code-javascript (default) or n8n-code-python.
  4. Gate: run validate_node / validate_workflow via n8n-validation-expert; resolve real errors (it knows the false positives).
  5. For custom code/scripts you may run codex-reviewer (Codex, optional) — advisory, not a blocker.

Fan-out & flow

L2 fix/extend; L3 new multi-branch workflow. Mostly serial (a workflow is one artifact); parallelize only independent sub-workflows.

Ship-readiness (unique)

validate_workflow clean; webhook auth enabled; secrets in credentials (not hardcoded); error + retry paths exist; test vs prod URLs separated; a manual test execution shown. Then run the ship-readiness n8n checklist. Never claim production-ready without passing validation; no live activation without owner approval.

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.

  1. 7d ago First seen · 27 lines · 43 tokens per session scan A 02ca14bceebd

Subscribe to this mod's changes

forge-n8n is a skill published in the GitHub repository ForgeyClap/claude-forge (2 stars, last pushed 1mo ago), licensed MIT. It adds 43 tokens to every session and 432 once invoked, about $0.0002 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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