Update benchmark-based MCP description

Author: rodion-m

README.md

@@ -10,7 +10,7 @@ This MCP (Model Context Protocol) server enables AI clients like Claude Code, Cu
 
 ## What is CodeAlive?
 
-The most accurate and comprehensive Context Engine as a service, optimized for large codebases, powered by advanced GraphRAG and accessible via MCP. It enriches the context for AI agents like Cursor, Claude Code, Codex, etc., making them 35% more efficient and up to 84% faster.
+CodeAlive is a Context Engine for large codebases, powered by graph-based retrieval and exposed through MCP. It gives AI agents like Cursor, Claude Code, Codex, and other MCP-compatible tools precise repository context instead of forcing them to read files blindly. In our 20-task RepoQA benchmark, CodeAlive + Qwen3.6 deep reached frontier-agent quality at ~25x lower model cost, and semantic search reduced captured benchmark tokens by 45%.
 
 It's like Context7, but for your (large) codebases.