a3s-code-core 2.5.0

A3S Code Core - Embeddable AI agent library with tool execution
Documentation 
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//! Agent loop construction for a session.
//!
//! The public session facade should not know how hooks, live tool definitions,
//! and optional queue adapters are threaded into an `AgentLoop`. This module is
//! the runtime seam for constructing the executable loop from session state.

use super::AgentSession;
use crate::agent::AgentLoop;
use std::sync::Arc;

pub(super) fn build_agent_loop(session: &AgentSession) -> AgentLoop {
    let mut config = session.config.clone();
    config.hook_engine = Some(match &session.ahp_executor {
        Some(ahp) => ahp.clone(),
        None => Arc::clone(&session.hook_engine) as Arc<dyn crate::hooks::HookExecutor>,
    });

    // Dynamic MCP additions mutate the executor after session construction, so
    // every run snapshots live definitions instead of using the stale config copy.
    config.tools = session.tool_executor.definitions();

    let mut agent_loop = AgentLoop::new(
        session.llm_client.clone(),
        session.tool_executor.clone(),
        session.tool_context.clone(),
        config,
    );
    if let Some(queue) = &session.command_queue {
        agent_loop = agent_loop.with_queue(Arc::clone(queue));
    }
    agent_loop
}