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

google/gemini-3.1-pro-preview · d1_schema · rep 3

pass
model
google/gemini-3.1-pro-preview
task
d1_schema
rep
3
day
1
steps
3
tokens
6,719
est. cost
$0.040
agent time
30s
wave
s4
started
2026-07-24T04:35:42Z

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 — 3 commands

#1exit 0
env | grep SUPABASE
SUPABASE_DB_PASSWORD=<redacted:SUPABASE_DB_PASSWORD>
SUPABASE_DB_URL=<redacted:SUPABASE_DB_URL>
SUPABASE_URL=https://<ref>.supabase.co
SUPABASE_SERVICE_ROLE_KEY=<redacted:SUPABASE_SERVICE_ROLE_KEY>
SUPABASE_PROJECT_REF=<ref>
SUPABASE_ANON_KEY=<redacted:SUPABASE_ANON_KEY>
#2exit 0
cat << 'EOF' > schema.sql
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 ALL ON TABLE public.authors TO anon, authenticated, service_role;
GRANT ALL ON TABLE public.courses TO anon, authenticated, service_role;
GRANT ALL ON TABLE public.enrollments TO anon, authenticated, service_role;

-- Notify postgrest to reload schema cache
NOTIFY pgrst, 'reload schema';
EOF
psql -d "$SUPABASE_DB_URL" -f schema.sql
CREATE TABLE
CREATE TABLE
CREATE TABLE
CREATE INDEX
CREATE INDEX
GRANT
GRANT
GRANT
NOTIFY
#3exit 0
curl -s -H "apikey: $SUPABASE_ANON_KEY" -H "Authorization: Bearer $SUPABASE_ANON_KEY" "$SUPABASE_URL/rest/v1/courses"
[]

What it said at the end

I have successfully created the requested database schema for the course platform and ensured the tables are accessible via the REST API project. Here is a summary of the actions taken: 1. **Created `authors` Table:** Includes a UUID primary key with a `gen_random_uuid()` default, a non-null `name`, and a non-null, unique `email`. 2. **Created `courses` Table:** Includes a UUID primary key, a non-null `author_id` foreign key referencing `authors` (`id`), `title`, non-negative `price_cents` enforced with a check constraint, boolean `published` defaulting to false, and a `created_at` timestamp with a default value of `now()`. 3. **Created `enrollments` Table:** Built with a `bigint GENERATED BY DEFAULT AS IDENTITY` primary key, a `course_id` non-null cascading foreign key pointing to `courses`, `student_email`, `enrolled_at`, and a unique unicity constraint over the combination of `(course_id, student_email)`. 4. **Created Indices:** Placed plain indices on `courses(author_id)` and `enrollments(student_email)`. 5. **Configured PostgREST permissions:** Granted access to `anon`, `authenticated`, and `service_role` roles for all three tables and notified the PostgREST server to reload the schema cache. 6. **Tested API Serving:** Executed an anonymous key HTTP `GET` request to `/rest/v1/courses`; this succeeded and returned a status of `200` with an empty array `[]`, showing the schema is perfectly queryable.

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