cache

Listing Cache Manager

Manages the local JSON cache at ~/.claude/plugins/find-apartments/data/cache.json. The cache is the single source of truth for deduplication — a listing is "new" if its URL is not a key in this file.

Cache File Format

{
  "https://www.yad2.co.il/item/abc123": {
    "first_seen": "2026-04-10",
    "city": "הוד השרון",
    "price": 9000,
    "rooms": 5,
    "address": "יונה וולך 4",
    "source": "Yad2",
    "notified": true
  }
}

Operations

Check if URL is new

Read ~/.claude/plugins/find-apartments/data/cache.json using the Read tool. If the file doesn't exist, all listings are new. Check if the listing URL exists as a key in the JSON object.

Add new listings to cache

After scraping, for each new listing (URL not in cache), add an entry:

# Read existing cache (or start with empty object)
# Add new entries with notified: false
# Write back with the Write tool

Use the Read tool to read the current cache, then use the Write tool to write the updated cache. Always set first_seen to today's date (ISO format) and notified to false for new entries.

Update flags after notify

After successful Telegram send, update notified to true for the notified URLs.

Read the cache, update the flags, write it back.

Find un-notified listings

Read the cache and filter for entries where notified is false — these need to be retried for Telegram notifications.

Data Directory

Ensure ~/.claude/plugins/find-apartments/data/ exists before reading/writing:

mkdir -p ~/.claude/plugins/find-apartments/data

If cache.json does not exist, treat it as an empty object {}.