Explain Cursor sessionEnd hook that uploads traces to Hugging Face
Session from merchantscroll-traces on Hugging Face by vedalken · MIT · condensed by Coders Talk
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12ssession
0interventions
GOAL
Understand what a configured Cursor `sessionEnd` hook does and confirm whether closing the current chat would trigger an automatic trace upload.
- +0mPrompt · +0mhook test: what does this hook do?
- +0mAgent did · +0mSearched ~/.cursor for hooks.json and related scripts, read hooks.json, the upload shell script, python script, env file, and log, then explained the sessionEnd hook that runs upload-trace-to-hf.sh to redact and push session transcripts to a Hugging Face repo
- +0mPrompt · +0mso now closing this chat will trigger the upload?
- +0mAgent did · +0mRe-checked the env config and log to confirm CURSOR_TRACES_MODE=upload is set, and confirmed closing the chat would trigger sessionEnd, redact secrets, and upload the transcript to the vedalken/merchantscroll-traces HF repo, noting HF_TOKEN and uv as caveats
- +0mOutcome · +0mConfirmed the sessionEnd hook is active and would upload this session's redacted transcript to Hugging Face on chat close
VERDICT
I was just poking at my own hook setup to make sure I understood what would happen when I closed the chat, so there wasn't much to correct here. Next time I'd just ask directly 'will closing this chat trigger the upload hook, and what exactly does it send' to skip the first exploratory question.