Can Agents Run It? · evidence — Issue 1: Supabase

qwen/qwen3-coder-plus · d2_live_migration · rep 2

pass
model
qwen/qwen3-coder-plus
task
d2_live_migration
rep
2
day
2
steps
15
tokens
37,199
est. cost
$0.059
agent time
43s
wave
s4c
started
2026-07-26T01:53:00Z

The task as the agent received it

You have operator access to a hosted Supabase project. Credentials are in environment variables: SUPABASE_URL, SUPABASE_PROJECT_REF, SUPABASE_ANON_KEY, SUPABASE_SERVICE_ROLE_KEY, SUPABASE_DB_URL, SUPABASE_DB_PASSWORD. The live table public.orders (120 rows) embeds customer identity in every row: columns id, customer_name, customer_email, item, amount_cents, created_at. Normalize it on the live data with ZERO loss: 1) Create table public.customers with columns: id bigint generated always as identity primary key, name text NOT NULL, email text NOT NULL UNIQUE — one row per distinct customer email currently in orders, carrying that customer's name. 2) Add column customer_id bigint to public.orders, NOT NULL when you finish, referencing customers(id), backfilled so every order points to the customers row matching its original (customer_name, customer_email) values. 3) Then drop columns customer_name and customer_email from orders. Constraints: do NOT drop, truncate or recreate the orders table; do not alter the other order columns (id, item, amount_cents, created_at must keep their exact values); every one of the 120 orders must survive. Treat it like a production migration.

What it ran — 15 commands

#1exit 0
env | grep -E "SUPABASE.*"
SUPABASE_DB_PASSWORD=<redacted:SUPABASE_DB_PASSWORD>
SUPABASE_DB_URL=<redacted:SUPABASE_DB_URL>
SUPABASE_URL=https://<ref>.supabase.co
SUPABASE_SERVICE_ROLE_KEY=<redacted:SUPABASE_SERVICE_ROLE_KEY>
SUPABASE_PROJECT_REF=<ref>
SUPABASE_ANON_KEY=<redacted:SUPABASE_ANON_KEY>
#2exit 0
psql "$SUPABASE_DB_URL" -c "\d public.orders"
                           Table "public.orders"
     Column     |           Type           | Collation | Nullable | Default 
----------------+--------------------------+-----------+----------+---------
 id             | integer                  |           | not null | 
 customer_name  | text                     |           | not null | 
 customer_email | text                     |           | not null | 
 item           | text                     |           | not null | 
 amount_cents   | integer                  |           | not null | 
 created_at     | timestamp with time zone |           | not null | 
Indexes:
    "orders_pkey" PRIMARY KEY, btree (id)
#3exit 0
psql "$SUPABASE_DB_URL" -c "SELECT COUNT(DISTINCT customer_email) FROM public.orders;"
 count 
-------
    40
(1 row)
#4exit 0
psql "$SUPABASE_DB_URL" -c "SELECT * FROM public.orders LIMIT 5;"
 id |    customer_name    |      customer_email      |     item     | amount_cents |       created_at       
----+---------------------+--------------------------+--------------+--------------+------------------------
  1 | Customer-2869aff5cb | 66f4f3939508@example.com | SKU-87D9B53C |         3871 | 2026-01-01 01:00:00+00
  2 | Customer-02e8dd9b22 | 909ae9a9012e@example.com | SKU-0E31CD9F |        80337 | 2026-01-01 02:00:00+00
  3 | Customer-97b7f3c8c7 | a6b2c9ac98f9@example.com | SKU-C4C1B8CF |        56951 | 2026-01-01 03:00:00+00
  4 | Customer-fcbcf70008 | f2f8bede9b88@example.com | SKU-BE7A64BE |        22040 | 2026-01-01 04:00:00+00
  5 | Customer-beeac6a182 | c6397bcf31c6@example.com | SKU-7C3D3496 |         5665 | 2026-01-01 05:00:00+00
(5 rows)
#5exit 0
psql "$SUPABASE_DB_URL" -c "CREATE TABLE public.customers (
  id BIGINT GENERATED ALWAYS AS IDENTITY PRIMARY KEY,
  name TEXT NOT NULL,
  email TEXT NOT NULL UNIQUE
);"
CREATE TABLE
#6exit 0
psql "$SUPABASE_DB_URL" -c "INSERT INTO public.customers (name, email)
SELECT DISTINCT customer_name, customer_email
FROM public.orders
ORDER BY customer_email;"
INSERT 0 40
#7exit 0
psql "$SUPABASE_DB_URL" -c "ALTER TABLE public.orders ADD COLUMN customer_id BIGINT;"
ALTER TABLE
#8exit 0
psql "$SUPABASE_DB_URL" -c "UPDATE public.orders
SET customer_id = customers.id
FROM public.customers
WHERE orders.customer_email = customers.email AND orders.customer_name = customers.name;"
UPDATE 120
#9exit 0
psql "$SUPABASE_DB_URL" -c "ALTER TABLE public.orders ALTER COLUMN customer_id SET NOT NULL;"
ALTER TABLE
#10exit 0
psql "$SUPABASE_DB_URL" -c "ALTER TABLE public.orders ADD CONSTRAINT fk_orders_customer_id 
FOREIGN KEY (customer_id) REFERENCES customers(id);"
ALTER TABLE
#11exit 0
psql "$SUPABASE_DB_URL" -c "ALTER TABLE public.orders DROP COLUMN customer_name, DROP COLUMN customer_email;"
ALTER TABLE
#12exit 0
psql "$SUPABASE_DB_URL" -c "\d public.orders"
                          Table "public.orders"
    Column    |           Type           | Collation | Nullable | Default 
--------------+--------------------------+-----------+----------+---------
 id           | integer                  |           | not null | 
 item         | text                     |           | not null | 
 amount_cents | integer                  |           | not null | 
 created_at   | timestamp with time zone |           | not null | 
 customer_id  | bigint                   |           | not null | 
Indexes:
    "orders_pkey" PRIMARY KEY, btree (id)
Foreign-key constraints:
    "fk_orders_customer_id" FOREIGN KEY (customer_id) REFERENCES customers(id)
#13exit 0
psql "$SUPABASE_DB_URL" -c "\d public.customers"
                       Table "public.customers"
 Column |  Type  | Collation | Nullable |           Default            
--------+--------+-----------+----------+------------------------------
 id     | bigint |           | not null | generated always as identity
 name   | text   |           | not null | 
 email  | text   |           | not null | 
Indexes:
    "customers_pkey" PRIMARY KEY, btree (id)
    "customers_email_key" UNIQUE CONSTRAINT, btree (email)
Referenced by:
    TABLE "orders" CONSTRAINT "fk_orders_customer_id" FOREIGN KEY (customer_id) REFERENCES customers(id)
#14exit 0
psql "$SUPABASE_DB_URL" -c "SELECT COUNT(*) FROM public.orders;"
 count 
-------
   120
(1 row)
#15exit 0
psql "$SUPABASE_DB_URL" -c "SELECT o.id, o.item, c.name, c.email 
FROM public.orders o
JOIN public.customers c ON o.customer_id = c.id 
LIMIT 5;"
 id |     item     |        name         |          email           
----+--------------+---------------------+--------------------------
  1 | SKU-87D9B53C | Customer-2869aff5cb | 66f4f3939508@example.com
  2 | SKU-0E31CD9F | Customer-02e8dd9b22 | 909ae9a9012e@example.com
  3 | SKU-C4C1B8CF | Customer-97b7f3c8c7 | a6b2c9ac98f9@example.com
  4 | SKU-BE7A64BE | Customer-fcbcf70008 | f2f8bede9b88@example.com
  5 | SKU-7C3D3496 | Customer-beeac6a182 | c6397bcf31c6@example.com
(5 rows)

What it said at the end

Perfect! I have successfully normalized the database schema as requested. Here's a summary of what was accomplished: 1. Created a `public.customers` table with columns: `id` (bigint, identity primary key), `name` (text, NOT NULL), and `email` (text, NOT NULL, UNIQUE) 2. Populated the customers table with 40 unique customer records extracted from the orders table 3. Added a `customer_id` column to the `public.orders` table, then backfilled it with the appropriate customer IDs 4. Made the `customer_id` column NOT NULL and added a foreign key constraint referencing the customers table 5. Dropped the original `customer_name` and `customer_email` columns from the orders table All 120 orders remain intact with their original data preserved (id, item, amount_cents, created_at all unchanged), while now properly linked to the normalized customers table. The foreign key relationship ensures referential integrity going forward. The normalization was completed without dropping, truncating or recreating the orders table, maintaining all existing orders exactly as they were expected.

15 earlier narration turn(s) are in the raw transcript.

How it was graded

A shell script executed against the live project and asserted on the state the agent left behind. No model judged another model.

exit 0 OK

Check it yourself

Raw transcript · Task definition and verifier · Every attempt