Tool calls (particularly fetching for context) eats the context window heavily. I explicitly send MCP calls to sub agents because they are so “wordy”.

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bensyverson 10 hours ago | parent [-]

Everyone who has not hit this bug thinks it’s user error… It’s not. It happened to me a few days ago, and the speed at which I tore through my 5 hour usage cap was easily 10x faster than normal.

Also: sub agents do not get you free usage. They just protect your main context window.

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dmd 8 hours ago | parent | next [-]

I'm on Max. This morning, just to test, before doing anything else whatsoever, I was at 0%, and I typed 'test one two three' into CC.

That put me at 12%.

I have no MCPs except the built in claude-in-chrome.

This is clearly a bug.

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piva00 10 hours ago | parent | prev | next [-]

Don't they consume less of the token quota in case the subagents are running cheaper models like Sonnet and Haiku compared to Opus?

	▲	bensyverson 9 hours ago \| parent [-]
		Correct—I just wouldn't want folks to mistakenly think that the context fill % corresponds 1:1 with session token use.

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master_crab 9 hours ago | parent | prev [-]

Yes, sorry. I meant it more as a descriptor of how many tokens it consumes. You are still stuck burning money.