GCF Stats
Show the user their gcf-proxy token savings.
Check if /tmp/gcf-proxy-stats.json exists and read it. The file contains:
calls: number of tool calls rewrittenjson_bytes: total JSON bytes receivedgcf_bytes: total GCF bytes sentbytes_saved: total bytes savedpct_saved: percentage reductionest_tokens_saved: estimated tokens saved
Present the stats in a clear format. If the file doesn't exist, explain that gcf-proxy writes stats when running with --stats-file and suggest wrapping a server with /gcf-proxy:setup.