A set of coding rules for a TypeScript MCP server that calculates betting methods. It defines formatting, naming, file structure, and the required state and session methods.

Use it when adding or reviewing betting-method classes, session handling, result recording, state management, and MCP tool names in this TypeScript project.

It gives contributors consistent rules for writing and extending the server, reducing style differences and structural mistakes.

cursorrules — Cursor rule for Cursor by yusakuvol: A set of coding rules for a TypeScript MCP…

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.

agentmods

npx agentmods add rules/yusakuvol/betting-method-mcp/cursorrules

Clone the repo

git clone --depth 1 https://github.com/yusakuvol/betting-method-mcp

Made for: Cursor.

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.

README.md

[![agentmods](https://agentmods.dev/badge/rules/yusakuvol/betting-method-mcp/cursorrules.svg)](https://agentmods.dev/rules/yusakuvol/betting-method-mcp/cursorrules)

Your own site

<a href="https://agentmods.dev/rules/yusakuvol/betting-method-mcp/cursorrules"><img src="https://agentmods.dev/badge/rules/yusakuvol/betting-method-mcp/cursorrules.svg" alt="Measured on agentmods" height="20"></a>

Per session 1,427 This file is loaded in full into every session.

When invoked 1,427 The same file — it is already loaded in full.

Security scan A 0 findings. Scan, not verified.

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.

Model	Per session	Once invoked
Fable 5	$0.01427	$0.01427
Opus 5	$0.00714	$0.00714
Sonnet 5	$0.00285	$0.00285
Haiku 4.5	$0.00143	$0.00143

Measured 3d ago against content hash e0c9f91c6975, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

cursorrules 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 3d 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.

.cursorrules · 252 lines

How it starts

The opening of the file, as written. The whole thing — 252 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Cursor/Codex Rules for betting-method-mcp

Project Type

TypeScript MCP (Model Context Protocol) server for betting method calculations

Stack

TypeScript (strict mode)
Node.js >= 18
MCP SDK
Vitest (testing)
Biome (linter/formatter)

Code Style (Enforced by Biome)

Double quotes ALWAYS
Semicolons ALWAYS
2 space indentation
100 character line width
Trailing commas everywhere
Arrow function parentheses always

Naming Rules

Classes: PascalCase (MonteCarloMethod)
Interfaces: PascalCase + "State" suffix (MonteCarloState)
Functions: camelCase (recordResult, initSession)
MCP tools: lowercase_underscore (montecarlo_init)
Files: lowercase (montecarlo.ts, martingale.ts)

Architecture Pattern

Every betting method class MUST have:

private state: MethodState property
constructor() - default initialization
initSession(params) - setup with validation
recordResult(result: "win" | "loss") - update logic
getState() - return COPY of state (immutability!)
reset() - restart session

Every state interface MUST:

Extend BettingMethodState
Include these required properties:
- currentBet: number
- totalProfit: number
- sessionActive: boolean

Every MCP method MUST register 4 tools:

{method}_init
{method}_record
{method}_status
{method}_reset

Critical Rules

✅ ALWAYS DO:

Validate ALL parameters in initSession()
Check sessionActive before recordResult()
Return state COPY from getState() using spread: { ...this.state }
Use double quotes for strings
Add semicolons to every statement
Write comprehensive tests (8+ test cases per method)
Throw descriptive errors with actionable messages
Update totalProfit in recordResult()

❌ NEVER DO:

Return state directly from getState() (breaks immutability)
Skip parameter validation
Modify state without creating new object
Use single quotes
Omit semicolons
Process results without checking sessionActive
Write vague error messages

Read the full file on GitHub · 252 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.

3d ago First seen · 252 lines · 1,427 tokens per session scan A e0c9f91c6975

Subscribe to this mod's changes

cursorrules is a cursor rule published in the GitHub repository yusakuvol/betting-method-mcp (0 stars, last pushed 5mo ago), licensed MIT. It adds 1,427 tokens to every session, about $0.0071 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.

cursorrules