memplan/decide

Records one decision into .memplan/decisions/log.mem using a UTC timestamp as the line prefix. Deduplicates — never records the same choice + because pair twice. After appending, renders decisions/log.plan.md.

This skill is mutating (via CLI side-effect). The agent itself writes nothing.

Phase 1: Check for duplicate

Before writing, grep for an existing entry with the same choice and because:

grep -F "+decision:choice=<CHOICE_TEXT>,because=<BECAUSE_TEXT>" .memplan/decisions/log.mem 2>/dev/null