Ledger Transaction Entry

Use this skill to append new transactions into projects/data.

Required output target

• Data root: projects/data
• File rule: YYYY/YYYY-MM.jsonl
• New record must be appended to the end of the month file.

Parse rules

From user text, extract:

• direction: 支出 or 收入
• amount: number
• currency: default CNY if omitted
• date: default today (Asia/Taipei) if omitted
• description: short clean text
• tag: 单个分类标签（只能选一个）

Optional fields (only if provided clearly):

• id
• major_category
• type

If amount or direction is ambiguous, ask one short clarification question before writing.

Write command

IMPORTANT: Get today's date (YYYY-MM-DD) for determining which month file to write to.

# Get today's date in Asia/Taipei timezone
CURRENT_DATE=$(TZ='Asia/Taipei' date +%Y-%m-%d)

The script will automatically add created_at field with current timestamp (YYYY-MM-DD HH:MM:SS) to each record.

Then run:

python3 projects/scripts/add_ledger_entry.py \
  --data-root projects/data \
  --date "$CURRENT_DATE" \
  --direction <支出|收入> \
  --amount <number> \
  --currency <CNY|USD|JPY|...> \
  --description <text> \
  --tag <tag>

Add optional args only when available:

• --id
• --major-category
• --type
• --source manual
• --batch manual

Category catalog (must check before writing)

Before each write, check:

• projects/docs/CATEGORY_CATALOG.md

Selection policy:

• Prefer existing values from catalog (tag/major_category/type/currency).
• If user gives a new tag not in catalog and meaning is clear, write it; otherwise ask one short confirmation.
• 只能选一个分类，不要给多个。

Existing common tags (只选一个)

当用户没有指定分类时，根据意图选择最合适的一个：

• 吃喝：外卖 / 下馆子 / 饮料零食 / 买菜做饭
• 出行：打车 / 交通卡 / 火车 / 飞机 / 大巴
• 居家：生活好物 / 居家杂物 / 房租住宿
• 订阅与网络：通讯网络 / 服务器 / 域名
• 投资与收入：A股 / 美股 / 港股 / 项目营收 / 二手

When uncertain, leave tags empty instead of guessing aggressively.

Response after write

Confirm with:

• month file path
• appended summary (date, direction, amount, description)

Monthly summary + chart workflow

Use this when user asks things like:

• 统计已知月份的总金额
• 生成图表发我
• 图表都 ignore，发完可以删

Required behavior:

1. Read all month files under projects/data/YYYY/YYYY-MM.jsonl.
2. Aggregate by month:
   • total amount (absolute sum)
   • expense sum (direction=支出)
   • income sum (direction=收入)
   • net (income-expense)
3. Generate chart into projects/reports/ (PNG preferred).
4. Ensure generated charts are git-ignored (keep/report patterns in .gitignore).
5. Send chart to user.
6. If user asks to delete after sending, delete local generated chart files.

Important note in reply:

• If source data includes multiple currencies, state that monthly totals are mixed-currency trend values unless converted to one base currency.