Cursor IDE database cleanup script - fixes OOM crashes caused by bloated AI conversation data

cursor-db-cleanup.sh

#!/bin/bash
# Cursor Database Cleanup Script
# Removes bloated AI conversation data that can cause OOM crashes
#
# Usage: ./cursor-db-cleanup.sh
# Note: Close Cursor before running this script

set -e

DB_PATH="$HOME/Library/Application Support/Cursor/User/globalStorage/state.vscdb"

# Check if Cursor is running
if pgrep -f "Cursor" > /dev/null; then
    echo "Error: Cursor is running. Please close it first."
    exit 1
fi

# Check if database exists
if [ ! -f "$DB_PATH" ]; then
    echo "Error: Database not found at $DB_PATH"
    exit 1
fi

# Show current size
echo "Current database size:"
ls -lh "$DB_PATH"

# Create backup
BACKUP_PATH="${DB_PATH}.backup.$(date +%Y%m%d%H%M%S)"
cp "$DB_PATH" "$BACKUP_PATH"
echo "Backup created: $BACKUP_PATH"

# Show row counts before
echo ""
echo "Before cleanup:"
sqlite3 "$DB_PATH" "SELECT 'Total cursorDiskKV rows:', COUNT(*) FROM cursorDiskKV;"

# Delete bloated entries
echo ""
echo "Removing bloated entries..."
sqlite3 "$DB_PATH" <<EOF
DELETE FROM cursorDiskKV WHERE key LIKE 'composerData:%';
DELETE FROM cursorDiskKV WHERE key LIKE 'bubbleId:%';
DELETE FROM cursorDiskKV WHERE key LIKE 'agentKv:blob:%';
DELETE FROM cursorDiskKV WHERE key LIKE 'composer.content.%';
DELETE FROM cursorDiskKV WHERE key LIKE 'checkpointId:%';
VACUUM;
EOF

# Show results
echo ""
echo "After cleanup:"
sqlite3 "$DB_PATH" "SELECT 'Total cursorDiskKV rows:', COUNT(*) FROM cursorDiskKV;"
echo ""
echo "New database size:"
ls -lh "$DB_PATH"
echo ""
echo "Cleanup complete! You can now restart Cursor."