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.
npx skills add SKalinin909/tradingcalc-mcp --skill tradingcalcgit clone --depth 1 https://github.com/SKalinin909/tradingcalc-mcpWrote 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/skills/skalinin909/tradingcalc-mcp/tradingcalc)<a href="https://agentmods.dev/skills/skalinin909/tradingcalc-mcp/tradingcalc"><img src="https://agentmods.dev/badge/skills/skalinin909/tradingcalc-mcp/tradingcalc/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/skills/skalinin909/tradingcalc-mcp/tradingcalc"><img src="https://agentmods.dev/badge/skills/skalinin909/tradingcalc-mcp/tradingcalc.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 | $0.00107 | $0.01286 |
| Opus 5.5 | $0.00043 | $0.00514 |
| Sonnet 5.5 | $0.00021 | $0.00257 |
| Haiku 4.5 | $0.00011 | $0.00129 |
Grade A, and why
tradingcalc 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 13d 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 — 85 lines — stays where its author put it; the contents beside it link to each section on GitHub.
TradingCalc: deterministic trading math
What this skill does
Gives you exact answers to trading math questions instead of a language-model estimate. The
TradingCalc MCP server exposes 75 deterministic tools across options, forex, risk statistics,
crypto futures, on-chain token checks and prediction markets. The same inputs always return the
same outputs, and the 12 core calculators are checked against canonical test vectors on a
public page (https://tradingcalc.io/verify).
Do not work out a position size, a liquidation price, an option value or a Sharpe ratio yourself and present it as authoritative. A small arithmetic slip here is real financial risk for whoever acts on it. Call the tool.
When to use it
Options
- "What is this option worth?" (spot, strike, days, volatility) :
workflow.run_black_scholes - "Is this Deribit option fairly priced?" :
workflow.run_black_scholes_live - "What does my call or put pay off at price X, and where is breakeven?" :
workflow.run_options_payoff - "What yield do I get selling covered calls?" :
workflow.run_covered_call_protective_put - "What implied volatility does this price imply?" :
workflow.run_implied_volatility - "What does a straddle or strangle pay?" :
workflow.run_straddle_strangle
Forex
- "How many lots should I trade to risk $200 with this stop?" :
workflow.run_forex_position_size_live - "What is a pip worth on 2 lots of EUR/USD?" :
workflow.run_forex_pip_value(or_livefor the account currency) - "How close am I to a margin call?" :
workflow.run_forex_margin_level - "How much margin does this position need?" :
workflow.run_forex_margin_required - "What will holding overnight cost?" :
workflow.run_forex_swap_cost - "How correlated are these two pairs?" :
workflow.run_forex_correlation_live
Risk and statistics
- "What is my VaR or expected shortfall?" :
workflow.run_var_cvar - "What is my real Sharpe ratio, and is it luck?" :
workflow.run_sharpe_stats,workflow.run_dsr - "How much of Kelly is safe?" :
workflow.run_kelly_frontier - "Give me a full risk report on this return series" :
workflow.run_portfolio_tearsheet - Also:
workflow.run_garch,workflow.run_risk_parity,workflow.run_hurst_exponent,workflow.run_cointegration,workflow.run_evt_tail_risk.
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.
- 13d ago Changed 416ad945c26f
- 15d ago First seen · 85 lines · 107 tokens per session scan A 6c432b393698
tradingcalc is a skill published in the GitHub repository SKalinin909/tradingcalc-mcp (2 stars, last pushed 14d ago), licensed MIT. It adds 107 tokens to every session and 1,286 once invoked, about $0.0004 per session on Opus 5.5. 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 2026-10-01.
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