Anthropic released a BLE protocol and ESP32 firmware that turns an M5StickC Plus into a desk companion for Claude, showing real-time animations and token stats. You can flash the device in minutes, pair over Bluetooth, and use its physical buttons to approve or deny Claude’s permission prompts without touching your computer.

This article breaks down three unadvertised breaking changes in Anthropic’s Opus 4.7 release—budget_tokens now errors, the tokenizer uses 35% more tokens, and thinking tokens are hidden but still billed. It also highlights a sharp drop in long-context performance and user reports of increased hallucinations, and recommends updating code to use “effort”: “xhigh” and reviewing the migration guide.