quant-validation-audit

Identifies look-ahead leakage, transaction costs omissions, and over-optimization in quantitative trading code and backtests.

Updated Jun 9, 2026
One-click install
npx skills add https://github.com/bini59/316_stock_automation --skill quant-validation-audit
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: quant-validation-audit
Source: https://github.com/bini59/316_stock_automation/tree/main/.claude/skills/quant-validation-audit
Command: npx skills add https://github.com/bini59/316_stock_automation --skill quant-validation-audit

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This skill provides a rigorous audit procedure to detect look-ahead leakage, missing transaction costs, and overfitting in quantitative trading code, ensuring robust and trustworthy results.

Core Features & Use Cases

  • Look-ahead bias detection and leakage checks across model and data inputs.
  • Cost-aware validation that accounts for trading fees, slippage, and market frictions.
  • Cross-layer consistency checks between producer and consumer artifacts to prevent boundary mismatches.
  • In/out-of-sample verification to ensure realistic performance and robust out-of-sample behavior.
  • QA/audit support for ongoing compliance and governance.

Quick Start

Run this audit on your current backtest module to identify look-ahead leaks, missing costs, and overfitting risks.

Frequently Asked Questions about quant-validation-audit

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I detect look-ahead bias in my backtest code?▼

Look-ahead bias in a backtest is detected by auditing model and data inputs for leakage across producer-consumer boundaries. This process cross-checks regime transitions and strategy proposals to flag future information leaking into historical simulations.

What is the best way to validate quantitative strategies for overfitting?▼

Validating quantitative strategies for overfitting requires in/out-of-sample verification and cross-layer consistency checks. This approach identifies over-optimization risks to ensure robust out-of-sample behavior in live signals and production outputs.

How do I audit my quantitative trading code for missing transaction costs?▼

You audit quantitative trading code for missing transaction costs by applying cost-aware validation. This checks that trading fees, slippage, and market frictions are accurately accounted for across backtest modules and reconciliation outputs.

Can I use this audit for live signals and production-grade validation?▼

Yes, you can use this audit for live signals and production-grade validation. It applies contract awareness between layers to cross-check regime transitions, strategy proposals, and reconciliation outputs for ongoing compliance and governance.

Why does my out-of-sample backtest performance drop significantly?▼

Out-of-sample backtest performance drops significantly due to look-ahead leakage and over-optimization. Auditing artifact boundaries and verifying in/out-of-sample consistency identifies these overfitting risks and boundary mismatches to ensure robust performance.