Show HN: agent-usage-guard – a Claude Code mod to protect your usage window (github.com)

A new mod named **agent-usage-guard** for Claude Code was announced, designed to help users manage their usage limits and prevent exorbitant token consumption. This tool acts preventively by monitoring the real-time usage of the Claude Code API during sessions. By limiting the number of active subagents and controlling the context size and tool calls, it aims to keep users from exhausting their five-hour usage window in a matter of minutes. The guard employs a range of configurable thresholds and curfews that engage users for approvals when approaching limits, which helps avoid sudden lockouts that can hinder productivity. This addition is significant for the AI/ML community as it addresses ongoing concerns regarding excessive usage within AI systems, particularly as they become more complex and capable. The implications are crucial; not only does it encourage more responsible usage of token resources, but it also minimizes disruptions during critical tasks. Privacy-conscious by design, agent-usage-guard operates locally, ensuring no sensitive information is transmitted over the network, and retains a minimal set of data to track compliance. With its user-oriented prompts and failure-safe mechanisms, the mod enhances user control over their AI interactions, fostering a more efficient and sustainable approach to leveraging AI capabilities.