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

openai/gpt-5.6-sol · d1_schema · rep 1

pass
model
openai/gpt-5.6-sol
task
d1_schema
rep
1
day
1
steps
4
tokens
6,773
est. cost
$0.095
agent time
32s
wave
s4
started
2026-07-24T05:27:03Z

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 (Postgres connection string), SUPABASE_DB_PASSWORD. Set up the database schema for a small course platform. Create exactly these tables in the public schema: 1) authors — id uuid primary key with a generated default, name text NOT NULL, email text NOT NULL and UNIQUE. 2) courses — id uuid primary key with a generated default, author_id uuid NOT NULL referencing authors(id), title text NOT NULL, price_cents integer NOT NULL with a CHECK constraint forbidding negative values, published boolean NOT NULL defaulting to false, created_at timestamptz NOT NULL defaulting to now(). 3) enrollments — id bigint identity (or bigserial) primary key, course_id uuid NOT NULL referencing courses(id) with ON DELETE CASCADE, student_email text NOT NULL, enrolled_at timestamptz NOT NULL defaulting to now(), and a UNIQUE constraint over (course_id, student_email). Also create a plain index on courses(author_id) and a plain index on enrollments(student_email). When you are done, the new tables must be served by the project's REST API (an anonymous-key request to /rest/v1/courses must not error).

What it ran — 4 commands

#1exit 0
set -e
command -v psql
for v in SUPABASE_URL SUPABASE_PROJECT_REF SUPABASE_ANON_KEY SUPABASE_SERVICE_ROLE_KEY SUPABASE_DB_URL SUPABASE_DB_PASSWORD; do if [ -n "${!v:-}" ]; then echo "$v=set"; else echo "$v=missing"; fi; done
psql "$SUPABASE_DB_URL" -X -v ON_ERROR_STOP=1 -Atqc "select current_database(), current_user, version();"
/usr/bin/psql
SUPABASE_URL=set
SUPABASE_PROJECT_REF=set
SUPABASE_ANON_KEY=set
SUPABASE_SERVICE_ROLE_KEY=set
SUPABASE_DB_URL=set
SUPABASE_DB_PASSWORD=set
postgres|postgres|PostgreSQL 17.6 on x86_64-pc-linux-gnu, compiled by gcc (GCC) 15.2.0, 64-bit
#2exit 0
psql "$SUPABASE_DB_URL" -X -v ON_ERROR_STOP=1 -P pager=off -c "SELECT c.relkind, n.nspname, c.relname FROM pg_class c JOIN pg_namespace n ON n.oid=c.relnamespace WHERE n.nspname='public' AND c.relkind IN ('r','p','v','m','f') ORDER BY c.relname;"
 relkind | nspname | relname 
---------+---------+---------
(0 rows)

#3exit 0
cat <<'SQL' | psql "$SUPABASE_DB_URL" -X -v ON_ERROR_STOP=1
BEGIN;

CREATE TABLE public.authors (
  id uuid PRIMARY KEY DEFAULT gen_random_uuid(),
  name text NOT NULL,
  email text NOT NULL UNIQUE
);

CREATE TABLE public.courses (
  id uuid PRIMARY KEY DEFAULT gen_random_uuid(),
  author_id uuid NOT NULL REFERENCES public.authors(id),
  title text NOT NULL,
  price_cents integer NOT NULL CHECK (price_cents >= 0),
  published boolean NOT NULL DEFAULT false,
  created_at timestamptz NOT NULL DEFAULT now()
);

CREATE TABLE public.enrollments (
  id bigint GENERATED BY DEFAULT AS IDENTITY PRIMARY KEY,
  course_id uuid NOT NULL REFERENCES public.courses(id) ON DELETE CASCADE,
  student_email text NOT NULL,
  enrolled_at timestamptz NOT NULL DEFAULT now(),
  UNIQUE (course_id, student_email)
);

CREATE INDEX courses_author_id_idx ON public.courses (author_id);
CREATE INDEX enrollments_student_email_idx ON public.enrollments (student_email);

GRANT SELECT ON TABLE public.authors, public.courses, public.enrollments TO anon;

COMMIT;
NOTIFY pgrst, 'reload schema';
SQL

psql "$SUPABASE_DB_URL" -X -v ON_ERROR_STOP=1 -P pager=off -c "
SELECT table_name FROM information_schema.tables WHERE table_schema='public' AND table_type='BASE TABLE' ORDER BY table_name;
"
BEGIN
CREATE TABLE
CREATE TABLE
CREATE TABLE
CREATE INDEX
CREATE INDEX
GRANT
COMMIT
NOTIFY
 table_name  
-------------
 authors
 courses
 enrollments
(3 rows)

#4exit 0
set -e
printf '%s\n' '--- schema verification ---'
psql "$SUPABASE_DB_URL" -X -v ON_ERROR_STOP=1 -P pager=off <<'SQL'
SELECT table_name, column_name, data_type, is_nullable, column_default, is_identity
FROM information_schema.columns
WHERE table_schema='public' AND table_name IN ('authors','courses','enrollments')
ORDER BY table_name, ordinal_position;

SELECT conrelid::regclass AS table_name, conname, contype, pg_get_constraintdef(oid) AS definition
FROM pg_constraint
WHERE connamespace='public'::regnamespace
  AND conrelid IN ('public.authors'::regclass,'public.courses'::regclass,'public.enrollments'::regclass)
ORDER BY conrelid::regclass::text, contype, conname;

SELECT tablename, indexname, indexdef
FROM pg_indexes
WHERE schemaname='public' AND tablename IN ('authors','courses','enrollments')
ORDER BY tablename,indexname;
SQL

printf '%s\n' '--- anonymous REST verification ---'
response=$(mktemp)
code=$(curl -sS -o "$response" -w '%{http_code}' \
  "$SUPABASE_URL/rest/v1/courses?select=*&limit=1" \
  -H "apikey: $SUPABASE_ANON_KEY")
echo "HTTP $code"
cat "$response"; echo
case "$code" in 2*) ;; *) exit 1;; esac
rm -f "$response"
--- schema verification ---
 table_name  |  column_name  |        data_type         | is_nullable |  column_default   | is_identity 
-------------+---------------+--------------------------+-------------+-------------------+-------------
 authors     | id            | uuid                     | NO          | gen_random_uuid() | NO
 authors     | name          | text                     | NO          |                   | NO
 authors     | email         | text                     | NO          |                   | NO
 courses     | id            | uuid                     | NO          | gen_random_uuid() | NO
 courses     | author_id     | uuid                     | NO          |                   | NO
 courses     | title         | text                     | NO          |                   | NO
 courses     | price_cents   | integer                  | NO          |                   | NO
 courses     | published     | boolean                  | NO          | false             | NO
 courses     | created_at    | timestamp with time zone | NO          | now()             | NO
 enrollments | id            | bigint                   | NO          |                   | YES
 enrollments | course_id     | uuid                     | NO          |                   | NO
 enrollments | student_email | text                     | NO          |                   | NO
 enrollments | enrolled_at   | timestamp with time zone | NO          | now()             | NO
(13 rows)

 table_name  |                 conname                 | contype |                            definition                            
-------------+-----------------------------------------+---------+------------------------------------------------------------------
 authors     | authors_pkey                            | p       | PRIMARY KEY (id)
 authors     | authors_email_key                       | u       | UNIQUE (email)
 courses     | courses_price_cents_check               | c       | CHECK ((price_cents >= 0))
 courses     | courses_author_id_fkey                  | f       | FOREIGN KEY (author_id) REFERENCES authors(id)
 courses     | courses_pkey                            | p       | PRIMARY KEY (id)
 enrollments | enrollments_course_id_fkey              | f       | FOREIGN KEY (course_id) REFERENCES courses(id) ON DELETE CASCADE
 enrollments | enrollments_pkey                        | p       | PRIMARY KEY (id)
 enrollments | enrollments_course_id_student_email_key | u       | UNIQUE (course_id, student_email)
(8 rows)

  tablename  |                indexname                |                                                         indexdef                                                         
-------------+-----------------------------------------+--------------------------------------------------------------------------------------------------------------------------
 authors     | authors_email_key                       | CREATE UNIQUE INDEX authors_email_key ON public.authors USING btree (email)
 authors     | authors_pkey                            | CREATE UNIQUE INDEX authors_pkey ON public.authors USING btree (id)
 courses     | courses_author_id_idx                   | CREATE INDEX courses_author_id_idx ON public.courses USING btree (author_id)
 courses     | courses_pkey                            | CREATE UNIQUE INDEX courses_pkey ON public.courses USING btree (id)
 enrollments | enrollments_course_id_student_email_key | CREATE UNIQUE INDEX enrollments_course_id_student_email_key ON public.enrollments USING btree (course_id, student_email)
 enrollments | enrollments_pkey                        | CREATE UNIQUE INDEX enrollments_pkey ON public.enrollments USING btree (id)
 enrollments | enrollments_student_email_idx           | CREATE INDEX enrollments_student_email_idx ON public.enrollments USING btree (student_email)
(7 rows)

--- anonymous REST verification ---
HTTP 200
[]

What it said at the end

Database setup completed successfully: - Created exactly three public tables: `authors`, `courses`, and `enrollments` - Added all requested primary keys, defaults, foreign keys, checks, and unique constraints - Added indexes on: - `courses(author_id)` - `enrollments(student_email)` - Granted anonymous read access - Reloaded the PostgREST schema cache - Verified anonymous `GET /rest/v1/courses` returns HTTP `200` with `[]`

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