Fridge Manager#

Track household food inventory via conversation. Auto-calculates expiry from built-in knowledge base, logs all changes, supports cron-based expiry alerts.

Data#

Store inventory in family/fridge.json (workspace-relative). Create on first use:

json

{ "items": [], "log": [] }

Item#

json

{
  "id": "a1b2c3d4",
  "name": "牛奶",
  "category": "dairy",
  "qty": "1 carton",
  "added": "2026-04-27",
  "expiry": "2026-05-04",
  "storage": "fridge",
  "notes": ""
}

• id — 8-char hex, generated via random
• category — meat|seafood|dairy|vegetable|fruit|grain|condiment|leftover|drink|snack|other
• storage — fridge|freezer|pantry|counter
• expiry — auto-calculated from knowledge base when omitted

Log Entry#

Append to log[] on every mutation:

json

{ "action": "add|consume|discard", "id": "a1b2c3d4", "name": "牛奶", "qty": "1 carton", "reason": "", "ts": "2026-04-27T18:30:00" }

Workflows#

Add (入库)#

User says they bought/stored food → parse name, quantity, storage location.

1. Look up category + shelf life in knowledge base (read references/food-knowledge-zh.md or references/food-knowledge-en.md matching user language)
2. Calculate expiry = today + shelf life for the matching storage type (fridge → refrigerated life, freezer → frozen life)
3. If item not in knowledge base → estimate conservatively, flag in notes
4. Write to items[], append log[]
5. Confirm: name, location, expiry date. Include one storage tip if notable (e.g., "蚝油必须冷藏")

Batch: "买了牛奶、鸡蛋和西兰花" → add all in one operation, single confirmation message.

Remove (出库)#

Three types — detect intent from phrasing:

IntentTrigger examplesActionConsume"用完了", "喝了", "used 3 eggs"Reduce qty or remove if zeroDiscard"扔了", "threw away", "过期了扔掉"Remove from itemsBatch cook"做了番茄炒蛋"Reduce/remove all ingredients mentioned

• Fuzzy-match item names. If ambiguous (multiple matches), list and ask.
• Never silently delete — always confirm what was removed.
• Append log[] for each item affected.

Query#

User saysResponse"冰箱里有什么" / "what's in my fridge"All items grouped by storage, with expiry status"什么快过期" / "what's expiring"Items within 3 days of expiry, sorted by urgency"有鸡蛋吗" / "do I have eggs"Search by name → qty + expiry"冷冻室里有什么" / "what's in the freezer"Filter by storage location

Status indicators: 🔴 expired · 🟡 ≤3 days · 🟢 safe

Expiry Alert (cron/heartbeat)#

For scheduled invocation. Silent when nothing is urgent.

1. Read family/fridge.json

2. Find items where expiry ≤ today + 3 days

3. If found → send alert: text

   🧊 Fridge Alert
   
   🔴 Expired:
   

• 酸奶 (2 days overdue)

🟡 Expiring soon:

• 牛奶 (1 day left)
• 鸡胸肉 (3 days left)

💡 Tip: consider freezing the chicken if not cooking today

4. If nothing expiring → reply `NO_REPLY` (stay silent)

#### Cron Setup

Users create a cron via OpenClaw with this task prompt:

text

Read the fridge-manager skill, then check family/fridge.json for items expiring within 3 days. Send a reminder if any found. Otherwise reply NO_REPLY.

Recommended schedule: daily at 9:00 AM user's local time.

### Storage Tips

When asked "how to store X" or during add workflow, consult the knowledge base:

- Optimal storage method
- Special handling tips
- Common mistakes to avoid

## Knowledge Base

Built-in shelf life + storage tips for 60+ common foods, organized by category:

- **English**: Read `references/food-knowledge-en.md`
- **中文**: Read `references/food-knowledge-zh.md`

Use fuzzy matching: "chicken breast" → poultry row, "西红柿" → 番茄 row.

## Rules

1. Match user's language — Chinese input → Chinese response
2. Conservative expiry estimates when uncertain
3. Confirm every add/remove with a brief summary
4. Keep JSON clean — remove items at zero quantity
5. Log every mutation