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

openai/gpt-5.6-sol · d1_schema · rep 2

pass
model
openai/gpt-5.6-sol
task
d1_schema
rep
2
day
1
steps
4
tokens
5,879
est. cost
$0.082
agent time
31s
wave
s4
started
2026-07-24T05:27:52Z

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
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 "$v=missing"; fi; done
command -v psql || true
SUPABASE_URL=set
SUPABASE_PROJECT_REF=set
SUPABASE_ANON_KEY=set
SUPABASE_SERVICE_ROLE_KEY=set
SUPABASE_DB_URL=set
SUPABASE_DB_PASSWORD=set
/usr/bin/psql
#2exit 0
set -e
psql "$SUPABASE_DB_URL" -v ON_ERROR_STOP=1 -Atc "select tablename from pg_catalog.pg_tables where schemaname='public' order by 1;"
#3exit 0
set -e
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 roles can discover and read the resources. RLS keeps anonymous
-- requests empty unless policies are added later by the application.
GRANT USAGE ON SCHEMA public TO anon, authenticated, service_role;
GRANT SELECT ON public.authors, public.courses, public.enrollments TO anon, authenticated;
GRANT ALL ON public.authors, public.courses, public.enrollments TO service_role;
GRANT USAGE, SELECT ON ALL SEQUENCES IN SCHEMA public TO service_role;

ALTER TABLE public.authors ENABLE ROW LEVEL SECURITY;
ALTER TABLE public.courses ENABLE ROW LEVEL SECURITY;
ALTER TABLE public.enrollments ENABLE ROW LEVEL SECURITY;

NOTIFY pgrst, 'reload schema';
COMMIT;
SQL

# Poll the REST endpoint briefly for PostgREST's schema reload.
code=""
body=""
for i in $(seq 1 12); do
  tmp=$(mktemp)
  code=$(curl -sS -o "$tmp" -w '%{http_code}' \
    -H "apikey: $SUPABASE_ANON_KEY" \
    "$SUPABASE_URL/rest/v1/courses?select=*&limit=1")
  body=$(cat "$tmp"); rm -f "$tmp"
  if [ "$code" = "200" ]; then break; fi
  sleep 1
done
printf 'REST status: %s\nREST body: %s\n' "$code" "$body"
test "$code" = "200"
BEGIN
CREATE TABLE
CREATE TABLE
CREATE TABLE
CREATE INDEX
CREATE INDEX
GRANT
GRANT
GRANT
GRANT
ALTER TABLE
ALTER TABLE
ALTER TABLE
NOTIFY
COMMIT
REST status: 200
REST body: []
#4exit 0
set -e
psql "$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;
"
 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)

What it said at the end

Database setup completed: - Created exactly three public tables: `authors`, `courses`, and `enrollments` - Added all requested primary keys, defaults, foreign keys, checks, uniqueness constraints, and cascade behavior - Added indexes on `courses(author_id)` and `enrollments(student_email)` - Enabled RLS and granted REST discovery/read access - Reloaded the PostgREST schema cache - Verified the anonymous REST request to `/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

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