Fixing Cursor app too much resource usage
Cursor app had become weirdly unusable on my Mac recently, and I couldn't figure out why. So I asked Codex to do a read-only audit of my computer and create a small HTML report.
Turns out Cursor itself was not exactly the problem.
Cursor was launching an old Telegram MCP/plugin process from my ~/.claude folder, and that orphaned bun server.ts process was eating a lot of CPU in the background.
The funny part is, I don't even use that Claude setup anymore.
So I deleted ~/.claude, cleared Trash, and still the process kept running. That was the interesting bit: deleting files does not stop an already running process.
Codex then traced the exact PID, stopped only that orphan process, verified it didn't come back, and updated the report with what happened.
Now Cursor is normal again.
The main lesson for me: agent config is not harmless. Old MCP/plugin setup can keep affecting other tools long after you forgot it exists.
Also, I still don't fully understand why Cursor was launching something from my old Claude folder in the first place. But this is exactly why stale agent config feels like technical debt now.
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