The Agent Skills Directory

[SAFE]: The skill implements a local logging system for tracking token usage, costs, and sessions, providing structured JSONL logs.
[SAFE]: Log data is stored locally in the user's home directory (~/.claude/leyline/usage/) and no evidence of data exfiltration was found.
[SAFE]: The session management logic in modules/session-patterns.md uses standard Python modules for time and file handling without risky side effects.
[SAFE]: The instruction set focuses on developer utility, such as querying logs via jq and grep, which are standard tools for log analysis.

usage-logging