Originally published at recca0120.github.io

}}">Two weeks ago I scanned 95 days of Claude Code logs and found that since 4/9, sub-agents had been 100% downgraded to 5m TTL — 5 consecutive days, 4,840 API calls, with the main agent completely untouched. I left the conclusion at "monitoring," since 5 days could still be rollout flapping.

Today 4/26, I re-ran the same Python. The streak is now 17 days , 15,727 API calls, 0 1h writes . This isn't flapping — Anthropic's server has quietly hard-coded the sub-agent default TTL to 5m . No changelog, no announcement, and the main issue was just closed without resolution.

This is a follow-up: latest data, cost math, community and media state, and why cnighswonger's proxy can't save you here either.

Past Two Weeks of Data

Scan covers 4/13–4/25 (cut-off of last post → today):

Metric Main agent Sub-agent

Total API calls 60,291 15,727

1h writes 100% (150.7M tokens) 0

5m writes 0 100% (60.4M tokens)

Consecutive 1h-write days 13 0

Consecutive 5m-write days 0…