V3 MCP Optimization

Reduce MCP startup time by pre-warming the connection pool and pre-building the tool index before accepting requests. This approach targets under 400ms initialization compared to the typical 1.8s cold start.

Implement a ConnectionPool class that stores reusable connections with lastUsed timestamps, usage counts, and health flags. Evict least-recently-used connections when at capacity and retire connections after a maximum usage count.

Use a hash-based Map index for O(1) exact-match tool lookup instead of linear search. Add an LRU cache for frequently used tools and a fuzzy matcher for typo-tolerant name resolution.

Least-connections routing sends requests to the server with the fewest active connections, while response-time selection favors the fastest server. A weighted strategy combines load, latency, and tool-category affinity into a single score.

High latency usually comes from creating a new connection per request, linear tool registry searches, and unbatched transport messages. Enable connection reuse, hash-based tool lookup, and message batching with compression to lower p95 latency.

Yes, a custom transport layer can buffer non-urgent messages into batches flushed by size or timeout, and compress payloads with gzip. Responses, errors, and high-priority messages should bypass batching and send immediately.