systemprompt-api 0.21.1

Axum-based HTTP server and API gateway for systemprompt.io AI governance infrastructure. Exposes governed agents, MCP, A2A, and admin endpoints with rate limiting and RBAC.
Documentation 
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//! Lightweight structural email-address validation used for request-input
//! checks.
//!
//! Copyright (c) systemprompt.io — Business Source License 1.1.
//! See <https://systemprompt.io> for licensing details.

pub fn is_valid_email(email: &str) -> bool {
    let email = email.trim();
    let Some((local, domain)) = email.split_once('@') else {
        return false;
    };
    if local.is_empty() || domain.is_empty() {
        return false;
    }
    if email.chars().filter(|c| *c == '@').count() != 1 {
        return false;
    }
    if !domain.contains('.') || domain.starts_with('.') || domain.ends_with('.') {
        return false;
    }
    true
}