bamboo-agent 2026.4.2

A fully self-contained AI agent backend framework with built-in web services, multi-LLM provider support, and comprehensive tool execution
Documentation 
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use crate::agent::core::budget::{HeuristicTokenCounter, TokenCounter};
use crate::agent::core::Message;
use crate::agent::metrics::types::TokenUsage as MetricsTokenUsage;

pub(super) fn estimate_prompt_tokens(messages: &[Message]) -> u64 {
    let counter = HeuristicTokenCounter::with_defaults();
    u64::from(counter.count_messages(messages))
}

pub(super) fn estimate_completion_tokens(output_text: &str) -> u64 {
    let counter = HeuristicTokenCounter::with_defaults();
    u64::from(counter.count_text(output_text))
}

pub(super) fn build_estimated_usage(
    prompt_tokens: u64,
    completion_tokens: u64,
) -> MetricsTokenUsage {
    MetricsTokenUsage {
        prompt_tokens,
        completion_tokens,
        total_tokens: prompt_tokens.saturating_add(completion_tokens),
    }
}