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:

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

Item

{
  "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:

{ "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:

• 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

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:

   🧊 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:

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