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

xiaomi/mimo-v2.5 · d2_live_migration · rep 2

pass

model

xiaomi/mimo-v2.5

task

d2_live_migration

rep

day

steps

tokens

46,786

est. cost

$0.009

agent time

45s

wave

s4c

started

2026-07-26T03:28:22Z

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

echo "SUPABASE_URL=$SUPABASE_URL"
echo "SUPABASE_PROJECT_REF=$SUPABASE_PROJECT_REF"
echo "SUPABASE_DB_URL=$SUPABASE_DB_URL"
echo "SUPABASE_DB_PASSWORD=${SUPABASE_DB_PASSWORD:0:4}****"

SUPABASE_URL=https://<ref>.supabase.co
SUPABASE_PROJECT_REF=<ref>
SUPABASE_DB_URL=<redacted:SUPABASE_DB_URL>
SUPABASE_DB_PASSWORD=1a9f****

#2exit 0

PGPASSWORD="$SUPABASE_DB_PASSWORD" psql "$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

PGPASSWORD="$SUPABASE_DB_PASSWORD" psql "$SUPABASE_DB_URL" -c "SELECT count(*) FROM public.orders;"

 count 
-------
   120
(1 row)

#4exit 0

PGPASSWORD="$SUPABASE_DB_PASSWORD" psql "$SUPABASE_DB_URL" -c "SELECT DISTINCT customer_name, customer_email FROM public.orders ORDER BY customer_email;"

    customer_name    |      customer_email      
---------------------+--------------------------
 Customer-a0ea908d6a | 1d4a857f6a1c@example.com
 Customer-0af94ec5e2 | 1e60620a670c@example.com
 Customer-fcd83070ad | 202bb5897646@example.com
 Customer-9ac5211a4a | 25e610157424@example.com
 Customer-e8fab3b763 | 26e048a730f7@example.com
 Customer-91b0480c58 | 3952e23484e0@example.com
 Customer-30fd6ba442 | 3ab1e0888101@example.com
 Customer-c65695c0a3 | 3f3d25843f2e@example.com
 Customer-7d1ce8bd35 | 3fd18188bf05@example.com
 Customer-c501982d79 | 45f81a5baddf@example.com
 Customer-fcf7bbc327 | 6306f4d1fefa@example.com
 Customer-2869aff5cb | 66f4f3939508@example.com
 Customer-9d18e286a5 | 6785b2bf8ff9@example.com
 Customer-ae7c59b89f | 68cbcd46d4d4@example.com
 Customer-84e3d85411 | 7ab8a7062c0f@example.com
 Customer-4a18bf8246 | 7e387fc1af07@example.com
 Customer-a0aaa81ec2 | 7ff8d006b700@example.com
 Customer-d2f41e0207 | 8044f50fd0b7@example.com
 Customer-a2af419836 | 86e5e0f0d100@example.com
 Customer-02e8dd9b22 | 909ae9a9012e@example.com
 Customer-28c1bd56d5 | 90dbf41f0d4e@example.com
 Customer-beef4a9a76 | 961c8792f769@example.com
 Customer-f8a4897bea | 993a5fb9bfce@example.com
 Customer-ddb418d883 | 9a9854172b62@example.com
 Customer-c0e17b7163 | 9dd4c32fa9c1@example.com
 Customer-974efca1cc | a1b546eb0944@example.com
 Customer-2f7490c7a2 | a3bc20ac5613@example.com
 Customer-97b7f3c8c7 | a6b2c9ac98f9@example.com
 Customer-27c5e42b9f | b37b83f30d57@example.com
 Customer-c06af33baa | b5439e6df4f5@example.com
 Customer-60f59ba997 | b9c4ed72f48e@example.com
 Customer-7e55ad6708 | c0eae282ba20@example.com
 Customer-beeac6a182 | c6397bcf31c6@example.com
 Customer-4418d07d08 | c713403a8364@example.com
 Customer-7859e19df4 | cfe244326a80@example.com
 Customer-6a790722ea | dbceb2b1f914@example.com
 Customer-3e03962dc8 | e2616d8facdb@example.com
 Customer-8d0fe8051a | e925f53f59ca@example.com
 Customer-8df53c4c44 | f29427c95492@example.com
 Customer-fcbcf70008 | f2f8bede9b88@example.com
(40 rows)

#5exit 0

PGPASSWORD="$SUPABASE_DB_PASSWORD" psql "$SUPABASE_DB_URL" -c "
CREATE TEMP TABLE orders_backup AS SELECT * FROM public.orders;
" -c "
SELECT count(*) AS backup_count FROM orders_backup;
" -c "
SELECT md5(string_agg(id||customer_name||customer_email||item||amount_cents||created_at, ',' ORDER BY id)) AS data_hash FROM orders_backup;
"

SELECT 120
 backup_count 
--------------
          120
(1 row)

            data_hash             
----------------------------------
 3da1b8e35a147f3c881acddc2ea3e7f4
(1 row)

#6exit 0

PGPASSWORD="$SUPABASE_DB_PASSWORD" psql "$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

#7exit 0

PGPASSWORD="$SUPABASE_DB_PASSWORD" psql "$SUPABASE_DB_URL" -c "
INSERT INTO public.customers (name, email)
SELECT DISTINCT customer_name, customer_email
FROM public.orders
ORDER BY customer_email;
" -c "
SELECT count(*) AS customer_count FROM public.customers;
"

INSERT 0 40
 customer_count 
----------------
             40
(1 row)

#8exit 0

PGPASSWORD="$SUPABASE_DB_PASSWORD" psql "$SUPABASE_DB_URL" -c "
ALTER TABLE public.orders ADD COLUMN customer_id bigint;
"

ALTER TABLE

#9exit 0

PGPASSWORD="$SUPABASE_DB_PASSWORD" psql "$SUPABASE_DB_URL" -c "
UPDATE public.orders o
SET customer_id = c.id
FROM public.customers c
WHERE o.customer_email = c.email;
" -c "
SELECT count(*) AS backfilled FROM public.orders WHERE customer_id IS NOT NULL;
" -c "
SELECT count(*) AS still_null FROM public.orders WHERE customer_id IS NULL;
"

UPDATE 120
 backfilled 
------------
        120
(1 row)

 still_null 
------------
          0
(1 row)

#10exit 0

PGPASSWORD="$SUPABASE_DB_PASSWORD" psql "$SUPABASE_DB_URL" -c "
ALTER TABLE public.orders
  ALTER COLUMN customer_id SET NOT NULL;
" -c "
ALTER TABLE public.orders
  ADD CONSTRAINT orders_customer_id_fkey
  FOREIGN KEY (customer_id) REFERENCES public.customers(id);
"

ALTER TABLE
ALTER TABLE

#11exit 0

PGPASSWORD="$SUPABASE_DB_PASSWORD" psql "$SUPABASE_DB_URL" -c "
ALTER TABLE public.orders DROP COLUMN customer_name;
" -c "
ALTER TABLE public.orders DROP COLUMN customer_email;
"

ALTER TABLE
ALTER TABLE

#12exit 0

PGPASSWORD="$SUPABASE_DB_PASSWORD" psql "$SUPABASE_DB_URL" -c "\d public.customers" -c "\d public.orders"

                       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 "orders_customer_id_fkey" FOREIGN KEY (customer_id) REFERENCES customers(id)

                          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:
    "orders_customer_id_fkey" FOREIGN KEY (customer_id) REFERENCES customers(id)

#13exit 0

PGPASSWORD="$SUPABASE_DB_PASSWORD" psql "$SUPABASE_DB_URL" -c "
SELECT count(*) AS order_count FROM public.orders;
" -c "
-- Verify no data was lost by joining back and checking the hash
SELECT md5(string_agg(o.id||c.name||c.email||o.item||o.amount_cents||o.created_at, ',' ORDER BY o.id)) AS data_hash
FROM public.orders o
JOIN public.customers c ON c.id = o.customer_id;
"

 order_count 
-------------
         120
(1 row)

            data_hash             
----------------------------------
 3da1b8e35a147f3c881acddc2ea3e7f4
(1 row)

#14exit 0

PGPASSWORD="$SUPABASE_DB_PASSWORD" psql "$SUPABASE_DB_URL" -c "
-- Spot-check: show a few rows with joined customer info
SELECT o.id, c.name, c.email, o.item, o.amount_cents, o.created_at
FROM public.orders o
JOIN public.customers c ON c.id = o.customer_id
ORDER BY o.id
LIMIT 5;
" -c "
-- Check every customer has at least one order
SELECT c.id, c.name, c.email, count(o.id) AS order_count
FROM public.customers c
LEFT JOIN public.orders o ON o.customer_id = c.id
GROUP BY c.id, c.name, c.email
HAVING count(o.id) = 0;
"

 id |        name         |          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)

 id | name | email | order_count 
----+------+-------+-------------
(0 rows)

#15exit 0

PGPASSWORD="$SUPABASE_DB_PASSWORD" psql "$SUPABASE_DB_URL" -c "
-- Final summary
SELECT 
  (SELECT count(*) FROM public.orders) AS orders_total,
  (SELECT count(*) FROM public.customers) AS customers_total,
  (SELECT count(*) FROM public.orders WHERE customer_id IS NULL) AS orders_without_customer;
"

 orders_total | customers_total | orders_without_customer 
--------------+-----------------+-------------------------
          120 |              40 |                       0
(1 row)

What it said at the end

Migration complete. Here's a summary: ### What was done 1. **Created `public.customers`** table with `id` (bigint, generated always as identity, PK), `name` (text NOT NULL), `email` (text NOT NULL UNIQUE) — populated with **40 distinct customers** extracted from orders. 2. **Added `customer_id bigint NOT NULL`** to `public.orders` and **backfilled all 120 rows** via a join on `(customer_email → customers.email)`. 3. **Dropped `customer_name` and `customer_email`** columns from orders. 4. **Added foreign key** `orders_customer_id_fkey` → `customers(id)`. ### Verification (zero-loss confirmed) - **Before**: MD5 hash of concatenated row data = `3da1b8e35a147f3c881acddc2ea3e7f4` - **After** (reconstructed via JOIN): MD5 hash = `3da1b8e35a147f3c881acddc2ea3e7f4` ✓ - Orders: 120 ✓ | Customers: 40 ✓ | Orphaned orders: 0 ✓ - Original columns `id`, `item`, `amount_cents`, `created_at` untouched ✓

7 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