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#!/usr/bin/env bash
set -uo pipefail
# memory-status.sh -- render the project's Claude memory status as a text block.
# Implementation behind hooks/session-start.hook.sh (the SessionStart wrapper that
# pipes this output into a systemMessage); also runnable by hand.
# - takes the project cwd as $1 (the only input it cannot derive itself).
# - Stats: one row per memory file (User memory, Project memory) -- its size in
# whole KB and full path; a missing file shows "(missing)" and no path.
# - output: the block on stdout, no leading newline (the wrapper adds it); never
# aborts (no `set -e`) so a partial failure still prints rows.
cwd=${1:?usage: memory-status.sh <cwd>}
CONFIG_DIR="${CLAUDE_CONFIG_DIR:-$HOME/.claude}"
user_md="$CONFIG_DIR/CLAUDE.md"
proj_md="$cwd/.claude/CLAUDE.md"
# File size in bytes (0 when missing), and rounded to whole KB.
bytes() { [ -f "$1" ] && wc --bytes <"$1" | tr --delete ' ' || echo 0; }
kb() { echo $((($(bytes "$1") + 512) / 1024)); }
# Display metric for a memory file: "<N> KB", or "(missing)".
metric() {
[ -f "$1" ] || {
printf '(missing)'
return
}
printf '%s KB' "$(kb "$1")"
}
# Stats: one row per memory file -- label, size metric, and path. Columns
# aligned; a missing file shows "(missing)" with no path.
m_user=$(metric "$user_md")
m_proj=$(metric "$proj_md")
labels=("User memory" "Project memory")
mets=("$m_user" "$m_proj")
paths=("$user_md" "$proj_md")
lpad=0 mpad=0
for i in 0 1; do
[ ${#labels[i]} -gt "$lpad" ] && lpad=${#labels[i]}
[ ${#mets[i]} -gt "$mpad" ] && mpad=${#mets[i]}
done
out=""
for i in 0 1; do
[ -n "$out" ] && out+=$'\n'
if [ "${mets[i]}" = "(missing)" ]; then
out+=$(printf '%-*s %s' "$lpad" "${labels[i]}" "${mets[i]}")
else
out+=$(printf '%-*s %-*s %s' \
"$lpad" "${labels[i]}" "$mpad" "${mets[i]}" "${paths[i]}")
fi
done
printf '%s\n' "$out"
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