Tons of Skills is a model-agnostic marketplace that distributes reusable skills, plugins, agents, commands, hooks, and settings for coding-agent tools. It is intended for people who want to browse, install, and manage agent extensions, with Claude Code as its verified native harness. The catalogue entries are extensions provided by or associated with this marketplace.
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.
git clone --depth 1 https://github.com/jeremylongshore/tons-of-skills-marketplaceWrote 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.
[](https://agentmods.dev/commands/jeremylongshore/tons-of-skills-marketplace/n8n-builder)<a href="https://agentmods.dev/commands/jeremylongshore/tons-of-skills-marketplace/n8n-builder"><img src="https://agentmods.dev/badge/commands/jeremylongshore/tons-of-skills-marketplace/n8n-builder/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/commands/jeremylongshore/tons-of-skills-marketplace/n8n-builder"><img src="https://agentmods.dev/badge/commands/jeremylongshore/tons-of-skills-marketplace/n8n-builder.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.00013 | $0.03060 |
| Opus 5 | $0.00006 | $0.01530 |
| Sonnet 5 | $0.00003 | $0.00612 |
| Haiku 4.5 | $0.00001 | $0.00306 |
Grade A, and why
n8n-builder 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 9d 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.
How it starts
The opening of the file, as written. The whole thing — 525 lines — stays where its author put it; the contents beside it link to each section on GitHub.
n8n Workflow Builder
Generate production-ready n8n workflow JSON files.
Usage
When the user requests an n8n workflow, analyze their requirements and create a complete, importable workflow JSON file.
Workflow Templates
1. AI Email Responder
{
"name": "AI Email Auto-Responder",
"nodes": [
{
"parameters": {
"pollTimes": {
"item": [
{
"mode": "everyMinute"
}
]
},
"simple": true,
"filters": {
"labelIds": ["INBOX"]
}
},
"id": "1",
"name": "Gmail Trigger",
"type": "n8n-nodes-base.gmailTrigger",
"typeVersion": 1,
"position": [250, 300]
},
{
"parameters": {
"model": "gpt-4",
"messages": {
"values": [
{
"content": "=Draft a professional response to this email:\n\nFrom: {{ $json.from }}\nSubject: {{ $json.subject }}\nBody: {{ $json.body }}\n\nWrite a helpful, friendly response."
}
]
}
},
"id": "2",
"name": "OpenAI",
"type": "@n8n/n8n-nodes-langchain.lmChatOpenAi",
"typeVersion": 1,
"position": [450, 300],
"credentials": {
"openAiApi": {
"id": "1",
"name": "OpenAI API"
}
}
},
{
"parameters": {
"sendTo": "={{ $('Gmail Trigger').item.json.from }}",
"subject": "=Re: {{ $('Gmail Trigger').item.json.subject }}",
"message": "={{ $json.output }}",
"options": {}
},
"id": "3",
"name": "Gmail Send",
"type": "n8n-nodes-base.gmail",
"typeVersion": 2,
"position": [650, 300],
"credentials": {
"gmailOAuth2": {
"id": "1",
"name": "Gmail OAuth2"
}
}
}
],
"connections": {
"Gmail Trigger": {
"main": [
[
{
"node": "OpenAI",
"type": "main",
"index": 0
}
]
]
},
"OpenAI": {
"main": [
[
{
"node": "Gmail Send",
"type": "main",
"index": 0
}
]
]
}
}
}
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.
- 9d ago First seen · 525 lines · 13 tokens per session scan A 601ab179ab56
n8n-builder is a command published in the GitHub repository jeremylongshore/tons-of-skills-marketplace (2,717 stars, last pushed today), licensed MIT. It adds 13 tokens to every session and 3,060 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 2026-09-03.
Other commands, from other repositories
api-docs.template
This prompt was authored for Claude-style slash workflows. In Codex runtime, adapt tool calls as follows.
api-gen
Generate REST API endpoints with routes, validation, error handling, and tests.
start-10-1
A guided lesson on setting up clasp, a command-line tool for managing Google Apps Script projects, and connecting it to Google’s Apps Script API.
sdlc-modernize
Industrial legacy system modernization, Strangler Fig migrations, monolith decoupling, and zero-downtime schema evolution.
graphql
Design GraphQL schema and resolver architecture. Usage - /mindforge:graphql [domain] [--style code-first|schema-first] [--federation].
cache
Design caching strategy with invalidation patterns. Usage - /mindforge:cache [service] [--pattern aside|through|behind] [--layers N].