OpenRouter MCP Upgrade: Claude Code Task Completion Rate Rises from 5/8 to 8/8

OpenRouter upgraded MCP to improve the agent tool-calling experience (AgEx), making tools easier for agents to understand and select, providing structured output when needed, and having the server tell Claude Code and Codex when to call. The company says that in its own tests, Claude Code improved from 5/8 tasks to 8/8, and @manufact gave it a score of 100/100. The volume of context injected by model queries dropped from about 1 MB (about 250k tokens) to 38 KB with pagination, a 96% reduction; video generation was changed to an asynchronous task, with results returned as links instead of stuffing raw bytes into the context.