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

openai/gpt-5.6-sol · d1_schema · rep 3

pass
model
openai/gpt-5.6-sol
task
d1_schema
rep
3
day
1
steps
4
tokens
5,646
est. cost
$0.079
agent time
27s
wave
s4
started
2026-07-24T05:28:39Z

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 || true
printf 'project_ref=%s\n' "${SUPABASE_PROJECT_REF:-missing}"
[ -n "${SUPABASE_DB_URL:-}" ] && echo DB_URL_set || echo DB_URL_missing
[ -n "${SUPABASE_URL:-}" ] && echo API_URL_set || echo API_URL_missing
/usr/bin/psql
project_ref=<ref>
DB_URL_set
API_URL_set
#2exit 0
set -euo pipefail
psql "$SUPABASE_DB_URL" -v ON_ERROR_STOP=1 -Atc "select tablename from pg_tables where schemaname='public' order by 1;"
#3exit 0
set -euo pipefail
psql "$SUPABASE_DB_URL" -v ON_ERROR_STOP=1 <<'SQL'
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);

-- Ensure PostgREST's anonymous role can resolve and read the new resources.
GRANT USAGE ON SCHEMA public TO anon;
GRANT SELECT ON TABLE public.authors, public.courses, public.enrollments TO anon;

NOTIFY pgrst, 'reload schema';
COMMIT;
SQL

# Verify database objects and constraints.
psql "$SUPABASE_DB_URL" -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;
SELECT indexname, indexdef FROM pg_indexes
WHERE schemaname='public' ORDER BY tablename, indexname;
"
BEGIN
CREATE TABLE
CREATE TABLE
CREATE TABLE
CREATE INDEX
CREATE INDEX
GRANT
GRANT
NOTIFY
COMMIT
 table_name  
-------------
 authors
 courses
 enrollments
(3 rows)

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

#4exit 0
set -euo pipefail
base="${SUPABASE_URL%/}"
status=$(curl -sS -o /tmp/courses_rest_response -w '%{http_code}' \
  "$base/rest/v1/courses?select=*&limit=1" \
  -H "apikey: $SUPABASE_ANON_KEY" \
  -H "Authorization: Bearer $SUPABASE_ANON_KEY")
printf 'HTTP %s\n' "$status"
cat /tmp/courses_rest_response; echo
case "$status" in 2*) ;; *) exit 1;; esac
HTTP 200
[]

What it said at the end

Database schema created successfully: - `authors` - `courses` - `enrollments` - Index on `courses(author_id)` - Index on `enrollments(student_email)` - Required primary keys, foreign keys, defaults, checks, uniqueness, and cascade behavior configured - Anonymous REST read access granted Verified `GET /rest/v1/courses` using the anonymous key returns **HTTP 200**.

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