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Riccardo Bartoli · github.com/rbartoli
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Comment · 9 days ago
Thanks! The percentage rules don't depend on the plan as it reads the 5-hour and weekly percentages Claude Code reports, so asking at 80% and refusing at 95% works the same on Pro or Max 20x. Same for the burn rule (20 points of the 5-hour window in 10 minutes).
The ones that depend on the plan are the absolute numbers: 4 agents running at once, 12 agent starts per 10 minutes, 10M subagent tokens per 10 minutes, and the 500k context before it asks to compact. I tuned them on my own Max 5x, so on Pro they are probably too loose. You can change all of them with env vars (AGENT_GUARD_*), but presets per plan is a good idea, I'll look into it.
Comment · 9 days ago
You are correct, the first turn costs about the same either way, the difference comes after. Without compacting, every later turn re-reads the non-compacted context, and after compacting it reads a short summary.
So it only pays off if the session goes on. In my own dogfooding tests, I compacted 47 times out of 50 it had suggested.
Comment · 9 days ago
After consuming my whole usage window in a few minutes multiple times, I realised I needed a hook to do some checks for me and prompt me before submitting when cache had expired and content is too big, so that it can suggest me to "compact then send". It can also prevent sub-agents from spawning when above 80% usage window. Control is handed over to the user.
The first I built, based on hooks (run for 75 days), the biggest burst fell from 365 agent spawned to 27, and requests over 500k tokens of context from 14.5% to 0.6%. Lockouts still went up, because lots of parallel main sessions use up the window too. The strength is that it counts agents across every session on the machine.
I built https://github.com/rbartoli/agent-usage-guard, MIT-licensed, makes no network calls, needs Claude Code 2.1.287 or later.
I have also a post on this: https://rblab.com/what-stops-claude-code-burning-your-usage-...
Comment · 3 years ago
I use this with Resilio Sync and custom dns names from Tailscale Magic DNS - life saver!