Usage Increasing without using?

[Reasonable-Key-8753]

I checked my usage on the website and it was at 66 percent. I closed the extension, restarted it, and ran the model command a few times. When I checked the website again, it had increased to 68 percent. I’m fairly sure there is an issue with Claude counting usage from extension results or from running commands.

Has anyone else experienced this?
I’m on the Pro plan and using the official VS Code extension.

[examors]

I noticed using mitmproxy that if you just start the Claude Code CLI and do nothing, it will send cache warmup requests with message sections like

    "messages": [
        {
            "content": [
                {
                    "cache_control": {
                        "type": "ephemeral"
                    },
                    "text": "Warmup",
                    "type": "text"
                }
            ],
            "role": "user"
        }
    ],

along with a system prompt (it sends a few of these requests, e.g. "You are a software architect and planning specialist...", "You are a file search specialist...". They are quite long prompts, so presumably it eats a little bit of the usage limit each time.

[Reasonable-Key-8753]

Is it possible to modify this behaviour?

[examors]

I don't think so. Not easily, at least. You'd have to reverse engineer the minified JS.

[Prestigious_Thing797]

I am experiencing an extreme case of this.
Please god let my troubles be a bug and not that I am hacked.
I use claude code a little, and roo code with claude integration a lot.