McCain (2026)
AI agents are running for longer, but good oversight is becoming more active
Anthropic's study of Claude Code sessions and public API tool calls finds growing practical autonomy, paired with a shift from approving every action towards monitoring, interruption and agent-initiated clarification.
- 45+ min
- reached by the longest 0.1% of Claude Code turns in January 2026
- 80%
- of sampled public-API tool calls appeared to have at least one safeguard