Faster Claude code resume with fzf

claude-resume.sh

#!/usr/bin/env bash
# List Claude sessions for the current directory (and subdirectories), pick one with fzf,
# then resume it. Ctrl+D deletes the selected session.

PROJECTS_DIR="$HOME/.claude/projects"
ENCODED_CWD=$(echo "$PWD" | tr '/' '-')

# Write the entry-generator to a temp script so fzf reload can call it.
GEN=$(mktemp /tmp/resume-gen.XXXXXX.sh)
trap 'rm -f "$GEN"' EXIT

export PROJECTS_DIR ENCODED_CWD

cat > "$GEN" << 'GENEOF'
#!/usr/bin/env bash

ago() {
  local diff=$(( $(date +%s) - $1 ))
  if   (( diff < 60 ));      then echo "just now"
  elif (( diff < 3600 ));    then echo "$(( diff / 60 )) minutes ago"
  elif (( diff < 86400 ));   then echo "$(( diff / 3600 )) hours ago"
  elif (( diff < 604800 ));  then echo "$(( diff / 86400 )) days ago"
  elif (( diff < 2592000 )); then echo "$(( diff / 604800 )) weeks ago"
  else                            echo "$(( diff / 2592000 )) months ago"
  fi
}

mapfile -t JSONL_FILES < <(
  find "$PROJECTS_DIR" -maxdepth 2 -name '*.jsonl' \
    -path "*/${ENCODED_CWD}*" 2>/dev/null
)

entries=()
for file in "${JSONL_FILES[@]}"; do
  [[ -f "$file" ]] || continue

  session_id=$(basename "$file" .jsonl)
  mtime_epoch=$(stat -c '%Y' "$file")
  age=$(ago "$mtime_epoch")

  label=$(grep -m1 '"type":"custom-title"' "$file" \
    | jq -r '.customTitle // empty' 2>/dev/null)

  if [[ -z "$label" ]]; then
    while IFS= read -r line; do
      text=$(jq -r '
        .message.content |
        if type == "string" then .
        elif type == "array" then ([ .[] | select(.type=="text") | .text ][0] // "")
        else "" end' <<< "$line" 2>/dev/null)
      text="${text//$'\n'/ }"
      text="${text:0:120}"
      if [[ -n "$text" && "${text:0:1}" != "<" ]]; then
        label="$text"
        break
      fi
    done < <(grep '"type":"user"' "$file")
  fi

  [[ -z "$label" ]] && label="(empty session)"
  entries+=("${mtime_epoch}"$'\t'"${session_id}"$'\t'"${label}"$'\t'"${age}")
done

while IFS=$'\t' read -r mtime session_id label age; do
  printf '%s\t%s\n\e[2m  %s\e[0m\0' "$session_id" "$label" "$age"
done < <(printf '%s\n' "${entries[@]}" | sort -rn)
GENEOF

chmod +x "$GEN"

chosen=$(
  bash "$GEN" \
  | fzf --read0 --multi-line --ansi \
        --delimiter=$'\t' \
        --with-nth='2..' \
        --highlight-line \
        --height=100% \
        --bind "ctrl-d:execute-silent(
                  find '$PROJECTS_DIR' -name '{1}.jsonl' -delete 2>/dev/null
                )+reload(bash '$GEN')" \
        --footer=$'\e[2m  enter\e[0m open  \e[2mctrl-d\e[0m delete  \e[2mesc\e[0m cancel'
)

[[ -z "$chosen" ]] && exit 0

session_id=$(echo "$chosen" | head -1 | cut -f1)
exec claude --dangerously-skip-permissions --resume "$session_id"