[Research Finds Claude Code's Backend Agent Summary Function Leads to Approximately 15-20% Token Waste] According to Jinse Finance, research by Flamerix AI indicates that since Claude Code version 2.1.232, the backend agent automatically sends conversation content to the model every 30 seconds to generate a summary and update the status bar. Without a toggle, this behavior consumes approximately 15% to 26% of the user's token limit and rate limit. To address this issue, researchers developed a Bun preloading script called no-agent-summary.js, which suppresses this summary request by intercepting a timer. Users can permanently disable this by configuring BUN_OPTIONS, but it should be noted that this solution relies on specific code characteristics and its effectiveness needs to be verified after each Claude Code update.