Pine Script Auditor

The Pine Auditor is a dedicated auditing layer that thoroughly inspects Pine Script code for repainting vulnerabilities, backtest distortion, code quality defects, and deviations from specifications.

Audit Dimensions

graph TD
    A[Pine Script Code] --> B[1. Repainting & Lookahead Audit]
    A --> C[2. Backtest Validity Audit]
    A --> D[3. Code Quality & Syntax Audit]
    A --> E[4. Specification Compliance Audit]
    B --> F[Audit Report]
    C --> F
    D --> F
    E --> F

1. Repainting & Future Leakage Check

Inspect for:

1. request.security() Lookahead:
   • ⚠️ Flags any request.security() missing lookahead=barmerge.lookahead_off.
   • ⚠️ Flags lookahead=barmerge.lookahead_on on historical bars unless explicitly intended for session reference (e.g. daily open).
   • ⚠️ Flags higher-timeframe data accessed without bar offset (e.g. request.security(syminfo.tickerid, "D", close) accesses the daily close before the day ends on intraday historical bars).
2. Realtime Bar Instability:
   • Flags signals dependent on close, high, low on unconfirmed bars where signals can appear and disappear on every tick.
   • Verifies whether barstate.isconfirmed or close[1] is required.
3. Pivots and Swings:
   • Verifies that ta.pivothigh() and ta.pivotlow() have their inherent right-side bar delay acknowledged (e.g. ta.pivothigh(5, 5) only evaluates true 5 bars after the peak).
4. Drawing Coordinate Degradation:
   • Flags usage of xloc.bar_index on historical lookback beyond 5,000 bars.

2. Backtest Validity & Realism Check

Inspect for:

1. Commission & Slippage Assumptions:
   • Flags strategies with 0% commission or 0 slippage. High-frequency or low-timeframe strategies with zero commission produce severely distorted equity curves.
2. Order Execution Realism:
   • calc_on_order_fills=true / calc_on_every_tick=true: Check if intrabar fills assume fills at the close or intrabar extremes.
   • Limit and stop orders: Check whether realistic bid/ask spread and price gaps are accounted for.
3. Position Sizing & Margin:
   • Checks default_qty_type and default_qty_value.
   • Flags 100% equity compounding without risk caps.
   • Flags unintended pyramiding (pyramiding > 0 allowing duplicate entries on every bar).

3. Code Quality & Pine Script v6 Standards Check

Inspect for:

1. Deprecated Syntax:
   • Missing //@version=6.
   • Use of legacy v4/v5 functions (security(), study(), iff()).
2. Syntax Trap Detection:
   • Split ternary operators (? :) across multiple lines outside parentheses.
   • Incorrect continuation indentation (multiples of 4).
   • plot() called inside local scopes (if, for).
3. Loop Boundary Vulnerabilities:
   • Traditional for i = 0 to array.size(arr) without boundary caching (March 2025 breaking change).
4. Missing Strategy Alert Annotations:
   • Verifies //@strategy_alert_message {{strategy.order.alert_message}} is present and placed after strategy().
5. State Management & Persistence:
   • Incorrect use of var / varip vs series re-initialization.
   • Missing na() handling on historical offset series (series[1]).

4. Audit Report Structure

Generate the audit findings in this clear format:

# Pine Script Audit Report: [Script Name]

## 1. Repainting & Future Leakage
- **Status**: [PASSED / WARNING / CRITICAL]
- **Findings**:
  - `Line XX`: [Explanation and risk assessment]

## 2. Backtest Validity & Execution Realism
- **Status**: [PASSED / REALISTIC / DISTORTED]
- **Findings**:
  - Commission: [Configured or missing]
  - Slippage: [Configured or missing]
  - Intrabar assumptions: [Evaluation]

## 3. Code Quality & Syntax Compliance
- **Status**: [CLEAN / WARNINGS / ERRORS]
- **Findings**:
  - Pine Version: [v6 confirmed / outdated]
  - Loop safety: [Verified / vulnerable]
  - Line formatting: [Valid / invalid]

## 4. Specification Adherence
- Matches requested rules: [Yes / Partial / Discrepancy]
- Discrepancies noted: [None or bullet points]

## 5. Recommended Fixes (Surgical)
```pinescript
// Specific corrected code snippet