Crate mcp_session 

Bounded session management for MCP servers.

This crate provides BoundedSessionManager, a wrapper around rmcp’s LocalSessionManager that enforces:

• Maximum concurrent sessions with FIFO eviction of the oldest session when the limit is reached.
• Optional rate limiting on session creation via a sliding-window counter.
• Idle timeout via rmcp’s keep_alive configuration (passed through).

Quick start

use std::sync::Arc;
use mcp_session::BoundedSessionManager;
use mcp_session::SessionConfig;

let manager = Arc::new(
    BoundedSessionManager::new(
        SessionConfig {
            keep_alive: Some(std::time::Duration::from_secs(4 * 60 * 60)),
            ..Default::default()
        },
        100, // max concurrent sessions
    )
    .with_rate_limit(10, std::time::Duration::from_secs(60)),
);

// Pass `manager` to `StreamableHttpService::new(factory, manager, config)`

Structs

BoundedSessionManager

Wraps LocalSessionManager and limits the number of concurrent sessions.

SessionConfig

Enums

BoundedSessionError

Errors returned by BoundedSessionManager.

Type Aliases

SessionId