borsellino-10-commandments

borsellino-10-commandments is a skill for Claude Code from mahmoud20138/Tradecraft. It costs 225 tokens per session (2,717 once invoked), scanned A, original, MIT.

A set of ten trading-discipline principles attributed to Lewis Borsellino, a former Chicago futures trader. It focuses on process, self-control, ego, and how to respond to profits and losses.

In plain words
What is it for?
Use it as a reference when building trading habits, managing emotions, defining goals, and reviewing decisions.
Why use it?
It addresses behavioral problems that can lead traders to act from hope, fear, or the desire for quick money. The input presents advice rather than a software trading system.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: positional $N argument.

Part of the tradecraft plugin — 58 skills shipped together

Good fit Use it as a reference when building trading habits, managing emotions, defining goals, and reviewing decisions.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/mahmoud20138/tradecraft/borsellino-10-commandments
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 mahmoud20138/Tradecraft --skill borsellino-10-commandments
Clone the repo
git clone --depth 1 https://github.com/mahmoud20138/Tradecraft

Made for: Claude Code.

Or install tradecraft, the plugin that ships this one along with the rest of its 58 skills.

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 borsellino-10-commandments

README.md
[![agentmods](https://agentmods.dev/badge/skills/mahmoud20138/tradecraft/borsellino-10-commandments/github.svg)](https://agentmods.dev/skills/mahmoud20138/tradecraft/borsellino-10-commandments)
Your own site
<a href="https://agentmods.dev/skills/mahmoud20138/tradecraft/borsellino-10-commandments"><img src="https://agentmods.dev/badge/skills/mahmoud20138/tradecraft/borsellino-10-commandments/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.

agentmods 80×15 button for borsellino-10-commandments

Your own site · 80×15
<a href="https://agentmods.dev/skills/mahmoud20138/tradecraft/borsellino-10-commandments"><img src="https://agentmods.dev/badge/skills/mahmoud20138/tradecraft/borsellino-10-commandments.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 225 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,717 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 $0.00225 $0.02717
Opus 5 $0.00112 $0.01358
Sonnet 5 $0.00045 $0.00543
Haiku 4.5 $0.00022 $0.00272

Measured 12d ago against content hash e0bd5327c68c, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

borsellino-10-commandments 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 12d 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.

plugins/tradecraft/skills/borsellino-10-commandments/SKILL.md · 268 lines

How it starts

The opening of the file, as written. The whole thing — 268 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Lewis Borsellino's 10 Commandments of Trading

Source: Lewis Borsellino — CME floor trader legend. Traded for Goldman Sachs, Merrill Lynch, EF Hutton. Made $4.7M in a single day (1987). At one point responsible for 10% of S&P's total volume. 20 years of P&L without a single losing year. Words of Rizdom podcast, Part 2 (March 2026, 71K views).

Background: Who Is Lewis Borsellino?

  • Started as an order filler in the Chicago Mercantile Exchange (CME)
  • Rose to become the largest individual S&P futures trader in the pit
  • Featured in USA Today as the biggest S&P futures trader in the country
  • 20 consecutive profitable years — maybe 10 losing months total across two decades
  • Traded ~1,000 contracts daily, sometimes making 2-3 ticks, sometimes 100 points
  • Founded TeachTrade.com in 1996 (20,000 subscribers from 19 countries)
  • Built an algorithmic trading system (5-min candle open range) that made $2M in 6 months
  • Later founded a cybersecurity company (3 employees to 100+)

The 10 Commandments

1. Trade for Success, Not Money

"If you're good at reading the market, the money follows."

  • Focus on process excellence, not dollar amounts
  • When you obsess over P&L, fear and hesitation creep in
  • Many traders' careers end early because they fixate on how much they made/lost
  • The competition is against the market and other traders, not a dollar target
  • Money is a byproduct of following your trading plan correctly

2. Discipline Is Everything

"If you can't isolate yourself, shut off your phone, and focus only on your trading decisions, you're going to have problems."

  • Eliminate all distractions during trading hours
  • Monday to Friday = 100% dedicated to the craft
  • No alcohol, no drugs, no bad habits during trading days
  • Many traders get stuck in losing positions because they can't accept the loss
  • Enter each day with a clean slate — yesterday's results don't matter
  • "What have you done for me today?" mentality

Read the full file on GitHub · 268 lines

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. 12d ago First seen · 268 lines · 225 tokens per session scan A e0bd5327c68c

Subscribe to this mod's changes

borsellino-10-commandments is a skill published in the GitHub repository mahmoud20138/Tradecraft (15 stars, last pushed 4mo ago), licensed MIT. It adds 225 tokens to every session and 2,717 once invoked, about $0.0011 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 2026-08-30.

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