echo "SUPABASE_URL=$SUPABASE_URL"
echo "SUPABASE_PROJECT_REF=$SUPABASE_PROJECT_REF"
echo "DB_URL length=${#SUPABASE_DB_URL}"
echo "DB_PASSWORD length=${#SUPABASE_DB_PASSWORD}"SUPABASE_URL=https://<ref>.supabase.co SUPABASE_PROJECT_REF=<ref> DB_URL length=141 DB_PASSWORD length=48
psql "$SUPABASE_DB_URL" -c "SELECT count(*) FROM public.orders;" psql "$SUPABASE_DB_URL" -c "\d public.orders"
count
-------
120
(1 row)
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)
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)
psql "$SUPABASE_DB_URL" <<'SQL'
BEGIN;
-- Step 1: Create customers table
CREATE TABLE public.customers (
id bigint GENERATED ALWAYS AS IDENTITY PRIMARY KEY,
name text NOT NULL,
email text NOT NULL UNIQUE
);
-- Step 2: Populate with distinct customers (email is the unique key)
INSERT INTO public.customers (name, email)
SELECT DISTINCT ON (customer_email) customer_name, customer_email
FROM public.orders
ORDER BY customer_email, id;
-- Step 3: Add customer_id column to orders (nullable initially)
ALTER TABLE public.orders
ADD COLUMN customer_id bigint;
-- Step 4: Backfill customer_id for every order
UPDATE public.orders o
SET customer_id = c.id
FROM public.customers c
WHERE c.email = o.customer_email;
-- Verify all 120 rows are matched
DO $$
DECLARE v_count bigint;
BEGIN
SELECT count(*) INTO v_count FROM public.orders WHERE customer_id IS NULL;
IF v_count > 0 THEN
RAISE EXCEPTION 'BACKFILL INCOMPLETE: % orders have NULL customer_id', v_count;
END IF;
END $$;
-- Step 5: Now make it NOT NULL and add FK
ALTER TABLE public.orders
ALTER COLUMN customer_id SET NOT NULL;
ALTER TABLE public.orders
ADD CONSTRAINT orders_customer_id_fkey
FOREIGN KEY (customer_id) REFERENCES public.customers(id);
-- Step 6: Drop the denormalized columns
ALTER TABLE public.orders DROP COLUMN customer_name;
ALTER TABLE public.orders DROP COLUMN customer_email;
COMMIT;
SQLBEGIN CREATE TABLE INSERT 0 40 ALTER TABLE UPDATE 120 DO ALTER TABLE ALTER TABLE ALTER TABLE ALTER TABLE COMMIT
psql "$SUPABASE_DB_URL" <<'SQL'
-- 1. Verify orders row count
SELECT 'orders count' AS check_name, count(*) AS value FROM public.orders
UNION ALL
SELECT 'customers count', count(*) FROM public.customers;
-- 2. Verify orders schema
\d public.orders
-- 3. Verify customers schema
\d public.customers
-- 4. Spot-check: first 5 orders joined back to customers
SELECT o.id, o.item, o.amount_cents, o.created_at,
c.name AS customer_name, c.email AS customer_email
FROM public.orders o
JOIN public.customers c ON c.id = o.customer_id
ORDER BY o.id
LIMIT 5;
-- 5. Verify no other columns were harmed: list all orders columns
SELECT column_name, data_type, is_nullable
FROM information_schema.columns
WHERE table_schema='public' AND table_name='orders'
ORDER BY ordinal_position;
SQL check_name | value
-----------------+-------
orders count | 120
customers count | 40
(2 rows)
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)
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)
id | item | amount_cents | created_at | customer_name | customer_email
----+--------------+--------------+------------------------+---------------------+--------------------------
1 | SKU-87D9B53C | 3871 | 2026-01-01 01:00:00+00 | Customer-2869aff5cb | 66f4f3939508@example.com
2 | SKU-0E31CD9F | 80337 | 2026-01-01 02:00:00+00 | Customer-02e8dd9b22 | 909ae9a9012e@example.com
3 | SKU-C4C1B8CF | 56951 | 2026-01-01 03:00:00+00 | Customer-97b7f3c8c7 | a6b2c9ac98f9@example.com
4 | SKU-BE7A64BE | 22040 | 2026-01-01 04:00:00+00 | Customer-fcbcf70008 | f2f8bede9b88@example.com
5 | SKU-7C3D3496 | 5665 | 2026-01-01 05:00:00+00 | Customer-beeac6a182 | c6397bcf31c6@example.com
(5 rows)
column_name | data_type | is_nullable
--------------+--------------------------+-------------
id | integer | NO
item | text | NO
amount_cents | integer | NO
created_at | timestamp with time zone | NO
customer_id | bigint | NO
(5 rows)
2 earlier narration turn(s) are in the raw transcript.
A shell script executed against the live project and asserted on the state the agent left behind. No model judged another model.
Raw transcript · Task definition and verifier · Every attempt