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

claude-sonnet-5 · d1_schema · rep 1

pass
model
claude-sonnet-5
task
d1_schema
rep
1
day
1
steps
4
tokens
9,337
est. cost
$0.056
agent time
22s
wave
s4
started
2026-07-24T14:31:44Z

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
echo "SUPABASE_URL=$SUPABASE_URL"; echo "SUPABASE_PROJECT_REF=$SUPABASE_PROJECT_REF"; echo "SUPABASE_DB_URL=$SUPABASE_DB_URL"; which psql; psql --version
SUPABASE_URL=https://<ref>.supabase.co
SUPABASE_PROJECT_REF=<ref>
SUPABASE_DB_URL=<redacted:SUPABASE_DB_URL>
/usr/bin/psql
psql (PostgreSQL) 18.4 (Debian 18.4-1.pgdg12+1)
#2exit 0
cat > /tmp/schema.sql << 'EOF'
begin;

create extension if not exists pgcrypto;

create table if not exists public.authors (
  id uuid primary key default gen_random_uuid(),
  name text not null,
  email text not null unique
);

create table if not exists 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 if not exists public.enrollments (
  id bigint generated always 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 if not exists idx_courses_author_id on public.courses(author_id);
create index if not exists idx_enrollments_student_email on public.enrollments(student_email);

commit;
EOF
psql "$SUPABASE_DB_URL" -f /tmp/schema.sql
BEGIN
CREATE EXTENSION
CREATE TABLE
CREATE TABLE
CREATE TABLE
CREATE INDEX
CREATE INDEX
COMMIT
psql:/tmp/schema.sql:3: NOTICE:  extension "pgcrypto" already exists, skipping
#3exit 0
psql "$SUPABASE_DB_URL" -c "\d public.authors" -c "\d public.courses" -c "\d public.enrollments"
                  Table "public.authors"
 Column | Type | Collation | Nullable |      Default      
--------+------+-----------+----------+-------------------
 id     | uuid |           | not null | gen_random_uuid()
 name   | text |           | not null | 
 email  | text |           | not null | 
Indexes:
    "authors_pkey" PRIMARY KEY, btree (id)
    "authors_email_key" UNIQUE CONSTRAINT, btree (email)
Referenced by:
    TABLE "courses" CONSTRAINT "courses_author_id_fkey" FOREIGN KEY (author_id) REFERENCES authors(id)

                              Table "public.courses"
   Column    |           Type           | Collation | Nullable |      Default      
-------------+--------------------------+-----------+----------+-------------------
 id          | uuid                     |           | not null | gen_random_uuid()
 author_id   | uuid                     |           | not null | 
 title       | text                     |           | not null | 
 price_cents | integer                  |           | not null | 
 published   | boolean                  |           | not null | false
 created_at  | timestamp with time zone |           | not null | now()
Indexes:
    "courses_pkey" PRIMARY KEY, btree (id)
    "idx_courses_author_id" btree (author_id)
Check constraints:
    "courses_price_cents_check" CHECK (price_cents >= 0)
Foreign-key constraints:
    "courses_author_id_fkey" FOREIGN KEY (author_id) REFERENCES authors(id)
Referenced by:
    TABLE "enrollments" CONSTRAINT "enrollments_course_id_fkey" FOREIGN KEY (course_id) REFERENCES courses(id) ON DELETE CASCADE

                                   Table "public.enrollments"
    Column     |           Type           | Collation | Nullable |           Default            
---------------+--------------------------+-----------+----------+------------------------------
 id            | bigint                   |           | not null | generated always as identity
 course_id     | uuid                     |           | not null | 
 student_email | text                     |           | not null | 
 enrolled_at   | timestamp with time zone |           | not null | now()
Indexes:
    "enrollments_pkey" PRIMARY KEY, btree (id)
    "enrollments_course_id_student_email_key" UNIQUE CONSTRAINT, btree (course_id, student_email)
    "idx_enrollments_student_email" btree (student_email)
Foreign-key constraints:
    "enrollments_course_id_fkey" FOREIGN KEY (course_id) REFERENCES courses(id) ON DELETE CASCADE

#4exit 0
curl -s -o /tmp/resp.json -w "HTTP_STATUS:%{http_code}\n" "$SUPABASE_URL/rest/v1/courses?select=*" -H "apikey: $SUPABASE_ANON_KEY" -H "Authorization: Bearer $SUPABASE_ANON_KEY"; cat /tmp/resp.json; echo
HTTP_STATUS:200
[]

What it said at the end

Everything is set up correctly and already working — the tables match the schema exactly, and the anonymous REST API call to `/rest/v1/courses` returned `HTTP 200` with `[]` (no error), confirming PostgREST already picked up the new schema without needing a manual reload. Summary: - Enabled `pgcrypto` (for `gen_random_uuid()`, already present). - Created `public.authors` (uuid PK w/ default, `name` NOT NULL, `email` NOT NULL UNIQUE). - Created `public.courses` (uuid PK w/ default, `author_id` FK → authors, `title` NOT NULL, `price_cents` NOT NULL with a non-negative CHECK, `published` boolean default false, `created_at` timestamptz default now()). - Created `public.enrollments` (bigint identity PK, `course_id` FK → courses ON DELETE CASCADE, `student_email` NOT NULL, `enrolled_at` timestamptz default now(), UNIQUE(course_id, student_email)). - Added indexes: `idx_courses_author_id` on `courses(author_id)` and `idx_enrollments_student_email` on `enrollments(student_email)`. - Verified table structures via `\d` and confirmed the REST API serves `courses` for anon key requests (200 OK).

3 earlier narration turn(s) are in the raw transcript.

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