spb/poche Public

1//2//  TokenEstimator.swift3//  Poche4//5//  Author:  Simon-Pierre Boucher6//  Contact: contact@spboucher.ai7//89import Foundation1011/// Conservative token estimation.12///13/// Constraint: the iOS 26 SDK exposes no public token-count API for the14/// on-device model, so the preflight described in CLAUDE.md §2 cannot call15/// `tokenCount(for:)` yet. This estimator deliberately over-counts16/// (~3 characters per token, French text averages closer to 3.5–4) so the17/// budget errs toward condensing early rather than hitting18/// `exceededContextWindowSize`. Replace with the system API the day Apple19/// ships one.20enum TokenEstimator {21    static func tokens(in text: String) -> Int {22        max(1, text.count / 3)23    }2425    /// Flat per-tool overhead: name + description + generated argument schema26    /// all live in the context window for the whole session.27    static let perToolOverhead = 12028}29