| name | expense-summary |
| description | Shows a summary of all SplitEasy groups and expenses. Use to get a quick overview of all active groups, total spending, and per-member contributions. |
| trigger | /expense-summary |
| effort | low |
Read backend/data/groups.json and backend/data/expenses.json directly using the Read tool. Do not make any HTTP calls.
Then print a human-readable summary using this exact format:
================================================
SPLITEASY — EXPENSE SUMMARY
================================================
Found <N> group(s) | <total expenses across all groups> expense(s) total
------------------------------------------------
GROUP: <Group Name>
------------------------------------------------
Members : <count> (<comma-separated member names>)
Expenses : <count>
Total Spent : ₹<total formatted with commas and 2 decimal places>
Per-member breakdown:
<Member Name> → paid ₹<amount> (<percentage>% of total)
...
Most paid : <Member Name> (₹<amount>)
Least paid : <Member Name> (₹<amount>)
(repeat block for each group)
------------------------------------------------
OVERALL TOTALS
------------------------------------------------
Total groups : <N>
Total expenses : <N>
Total spent : ₹<amount>
================================================
Calculation rules
- All amounts in
expenses.json are stored in paise (integers). Convert to rupees for display by dividing by 100.
- Display all ₹ amounts with 2 decimal places and comma separators, e.g.
₹1,250.00.
- "Paid by member" is determined by the
paid_by field on each expense, which is a member_id. Look up the member's name from the group's members array.
- For each group, total each member's payments: sum all expenses in that group where
paid_by == member.id.
- If a group has no expenses, show
Total Spent : ₹0.00 and skip the per-member breakdown, printing (no expenses recorded) instead.
- If
groups.json is empty, print: No groups found. Create a group first.
- Percentages: round to 1 decimal place. If total is 0, show
0.0% for everyone.
- Sort the per-member list from highest paid to lowest paid.
Example output (with data)
================================================
SPLITEASY — EXPENSE SUMMARY
================================================
Found 2 group(s) | 5 expense(s) total
------------------------------------------------
GROUP: Goa Trip 2026
------------------------------------------------
Members : 3 (Priya, Rahul, Sneha)
Expenses : 3
Total Spent : ₹4,500.00
Per-member breakdown:
Priya → paid ₹2,500.00 (55.6% of total)
Rahul → paid ₹1,500.00 (33.3% of total)
Sneha → paid ₹500.00 (11.1% of total)
Most paid : Priya (₹2,500.00)
Least paid : Sneha (₹500.00)
------------------------------------------------
GROUP: Office Lunch Pool
------------------------------------------------
Members : 2 (Arjun, Meera)
Expenses : 2
Total Spent : ₹800.00
Per-member breakdown:
Meera → paid ₹500.00 (62.5% of total)
Arjun → paid ₹300.00 (37.5% of total)
Most paid : Meera (₹500.00)
Least paid : Arjun (₹300.00)
------------------------------------------------
OVERALL TOTALS
------------------------------------------------
Total groups : 2
Total expenses : 5
Total spent : ₹5,300.00
================================================
Output the summary as plain text (no markdown code fences around the output itself). Do not explain what you are doing — just print the summary.
