Lily
Posted on Jul 23
• Originally published at dev.to
In the previous post in my "Claude Code environment" series, automatically pruning zombie agents, I wrote about finding agents that are defined but never used. But where did those numbers come from in the first place? This post covers exactly that: a mechanism that reads the transcript_path included in the Stop hook payload with Python and automatically accumulates agent invocations into a JSONL log.
Right now, ~/.claude/logs/agent-invocations.jsonl holds 553 recorded invocations. Over the last 7 days, general-purpose was called 58 times and Explore 24 times. And the fact that 47 agents were never called even once — that was invisible without this mechanism.
