alphagbm-pnl-simulator

alphagbm-pnl-simulator is a skill for Claude Code, Codex from leecyno1/boutique-skills. It costs 142 tokens per session (1,748 once invoked), scanned A, a copy of alphagbm-pnl-simulator, MIT.

A simulator for estimating profit and loss on option positions, which are contracts whose value depends on an underlying asset. It shows how results change with the asset price, implied volatility, and time until the contract expires.

In plain words
What is it for?
It is for drawing profit-and-loss results at expiry, tracking value over time, testing price or volatility scenarios, finding breakeven points, and viewing probability-weighted outcomes.
Why use it?
It helps traders examine possible outcomes and risks before relying on a single profit or loss estimate.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit It is for drawing profit-and-loss results at expiry, tracking value over time, testing price or volatility scenarios, finding breakeven points, and viewing probability-weighted outcomes.

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Install with agentmods
npx agentmods add skills/leecyno1/boutique-skills/alphagbm-pnl-simulator
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 leecyno1/boutique-skills --skill alphagbm-pnl-simulator
Clone the repo
git clone --depth 1 https://github.com/leecyno1/boutique-skills

Made for: Claude Code, Codex.

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 alphagbm-pnl-simulator

README.md
[![agentmods](https://agentmods.dev/badge/skills/leecyno1/boutique-skills/alphagbm-pnl-simulator/github.svg)](https://agentmods.dev/skills/leecyno1/boutique-skills/alphagbm-pnl-simulator)
Your own site
<a href="https://agentmods.dev/skills/leecyno1/boutique-skills/alphagbm-pnl-simulator"><img src="https://agentmods.dev/badge/skills/leecyno1/boutique-skills/alphagbm-pnl-simulator/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 alphagbm-pnl-simulator

Your own site · 80×15
<a href="https://agentmods.dev/skills/leecyno1/boutique-skills/alphagbm-pnl-simulator"><img src="https://agentmods.dev/badge/skills/leecyno1/boutique-skills/alphagbm-pnl-simulator.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 142 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,748 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 100% copy Near-identical to another mod 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 $0.00142 $0.01748
Opus 5 $0.00071 $0.00874
Sonnet 5 $0.00028 $0.00350
Haiku 4.5 $0.00014 $0.00175

Measured 11d ago against content hash 03046375cb35, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

alphagbm-pnl-simulator 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 11d 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.

Origin

This is a copy

100% identical to alphagbm-pnl-simulator — 0 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

skills/default/alphagbm-pnl-simulator/SKILL.md · 155 lines

How it starts

The opening of the file, as written. The whole thing — 155 lines — stays where its author put it; the contents beside it link to each section on GitHub.

AlphaGBM P&L Simulator

Prerequisites

  • API Key: Set env ALPHAGBM_API_KEY (format agbm_xxxx...).
  • Base URL: Default https://alphagbm.zeabur.app. Override with env ALPHAGBM_BASE_URL.

What This Skill Does

Simulates profit and loss for any option position across multiple dimensions -- underlying price, implied volatility, and time to expiration. Produces P&L diagrams, breakeven analysis, and probability-weighted outcome distributions.

Four Core Strategies for Context

Strategy Ideal Trend Max Profit Max Loss
Sell Put Neutral / Bullish Premium received Strike - Premium
Sell Call Neutral / Bearish Premium received Unlimited (uncovered)
Buy Call Bullish Unlimited Premium paid
Buy Put Bearish Strike - Premium Premium paid

Simulation Capabilities

Capability Description
P&L at Expiry Classic payoff diagram -- profit/loss vs. underlying price at expiration
P&L Over Time How the position's value evolves from now to expiry (time-series curves)
What-If: Price Vary underlying price by fixed amount or percentage -- see impact on P&L
What-If: IV Vary implied volatility -- see how IV crush or spike affects the position
What-If: Time Fast-forward to a specific date -- see theta decay impact
Probability Distribution Monte Carlo simulation of outcomes with probability of profit
Breakeven Analysis Exact breakeven points with time-varying breakevens before expiry

Supported Position Types

  • Single leg (long call, long put, short call, short put)
  • Two-leg spreads (vertical, calendar, diagonal)
  • Three-leg combinations (butterflies, ratio spreads)
  • Four-leg combinations (iron condors, iron butterflies, double diagonals)
  • Arbitrary multi-leg custom positions

API Endpoint

P&L Simulator

POST /api/options/tools/simulate
Content-Type: application/json

{
  "symbol": "AAPL",
  "spot": 150.0,
  "legs": [
    {"action": "buy", "option_type": "call", "strike": 145, "expiry_days": 30, "iv": 0.26},
    {"action": "sell", "option_type": "call", "strike": 150, "expiry_days": 30, "iv": 0.25}
  ]
}

Read the full file on GitHub · 155 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. 11d ago First seen · 155 lines · 142 tokens per session scan A 03046375cb35

Subscribe to this mod's changes

alphagbm-pnl-simulator is a skill published in the GitHub repository leecyno1/boutique-skills (5 stars, last pushed 20d ago), licensed MIT. It adds 142 tokens to every session and 1,748 once invoked, about $0.0007 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to alphagbm-pnl-simulator, differing in 0 lines, and is treated as a copy.

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