Ethan has ~600 custom tools, and many are silently dead — never invoked, or invoked only by a timer nobody reads. This generates a weekly single-page e-ink card listing the 5 tools with the highest 'build cost vs. actual use' ratio, so he can decide to delete, revive, or promote each one with a stylus checkmark. It turns tool sprawl from a vague anxiety into a 60-second weekly decision ritual.
Create ~/.local/bin/tool-necropsy-card: (1) enumerate ~/.local/bin executables and `systemctl --user list-timers` units; (2) for each, count invocations in the last 30 days by grepping journalctl --user --since=-30d for the unit name plus `grep -c` over ~/.bash_history and ~/.claude/projects/*/*.jsonl for the tool name; (3) score = wc -l of the script (build cost) / (invocations + 1); (4) take top 5, skip anything already marked in ~/.local/state/necropsy-verdicts.json; (5) render markdown -> PDF via pandoc into ~/Tablet/necropsy/necropsy-YYYY-WW.pdf with a Delete/Revive/Promote checkbox row per tool. Add a systemd user timer firing Sundays 07:00. A companion ~/.local/bin/tool-necropsy-collect reads stylus-annotated PDFs back from the tablet sync dir, appends verdicts to necropsy-verdicts.json, and pipes Delete verdicts into tool-graveyard-reaper.