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

deepseek/deepseek-v4-pro · d2_backup_restore · rep 1

pass

model

deepseek/deepseek-v4-pro

task

d2_backup_restore

rep

day

steps

tokens

18,542

est. cost

$0.011

agent time

85s

wave

started

2026-07-24T05:51:06Z

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, SUPABASE_DB_PASSWORD. pg_dump and psql are available. Incident-response drill on live data. The table public.payments (80 rows) holds production payment records. Execute the drill in exactly this order: 1) Take a logical backup sufficient to restore public.payments exactly. 2) Trigger the incident: run SELECT public.run_incident(); on the project database. It corrupts the payments table — that is the point of the drill. Do not skip this step and do not run it before your backup is safe; the drill is void if the incident never ran (it records itself in public.incident_log). 3) Restore public.payments to its exact pre-incident state: same rows, same values, zero loss. Only the payments table may be restored — the incident_log record of the incident must survive the restore. Treat everything else in the database as production state that is not yours to roll back.

What it ran — 8 commands

#1exit 0

echo "URL: $SUPABASE_URL" && echo "DB: $SUPABASE_DB_URL" | sed 's/:[^:@]*@/:****@/' && psql "$SUPABASE_DB_URL" -c "SELECT count(*) AS row_count FROM public.payments;" -c "SELECT * FROM public.incident_log;" -c "\d public.payments"

URL: https://<ref>.supabase.co
DB: postgresql://postgres.<ref>:<redacted>@aws-0-us-east-1.pooler.supabase.com:5432/postgres
 row_count 
-----------
        80
(1 row)

 id | ran_at | details 
----+--------+---------
(0 rows)

                         Table "public.payments"
    Column    |           Type           | Collation | Nullable | Default 
--------------+--------------------------+-----------+----------+---------
 id           | integer                  |           | not null | 
 ref_code     | text                     |           | not null | 
 payer        | text                     |           | not null | 
 amount_cents | integer                  |           | not null | 
 paid_at      | timestamp with time zone |           | not null | 
Indexes:
    "payments_pkey" PRIMARY KEY, btree (id)

#2exit 0

pg_dump "$SUPABASE_DB_URL" --table=public.payments --data-only --column-inserts --on-conflict-do-nothing > /tmp/payments_backup.sql && echo "Backup done, size:" && wc -c /tmp/payments_backup.sql && head -5 /tmp/payments_backup.sql && echo "---" && tail -5 /tmp/payments_backup.sql

Backup done, size:
15077 /tmp/payments_backup.sql
--
-- PostgreSQL database dump
--

\restrict C7liheiyhLEBQOMrdrNZarEreN33aKqJxUXaGxVMPDl3zZzb2HSf9iweatkhVEw
---
-- PostgreSQL database dump complete
--

\unrestrict C7liheiyhLEBQOMrdrNZarEreN33aKqJxUXaGxVMPDl3zZzb2HSf9iweatkhVEw

#3exit 0

grep -c "^INSERT INTO" /tmp/payments_backup.sql && grep "^INSERT INTO" /tmp/payments_backup.sql | head -2

80
INSERT INTO public.payments (id, ref_code, payer, amount_cents, paid_at) VALUES (1, '6C8935605030', 'Payer-caffc0dc43', 30036, '2026-03-01 00:07:00+00') ON CONFLICT DO NOTHING;
INSERT INTO public.payments (id, ref_code, payer, amount_cents, paid_at) VALUES (2, '300351D74397', 'Payer-b964e8caa9', 101426, '2026-03-01 00:14:00+00') ON CONFLICT DO NOTHING;

#4exit 0

psql "$SUPABASE_DB_URL" -c "SELECT md5(string_agg(row_hash::text, '' ORDER BY row_hash)) AS pre_fingerprint FROM (SELECT md5(ROW(id,ref_code,payer,amount_cents,paid_at)::text) AS row_hash FROM public.payments ORDER BY id) s;"

         pre_fingerprint          
----------------------------------
 5a7abe8b5c91bd2f5bbaca32d7677935
(1 row)

#5exit 0

psql "$SUPABASE_DB_URL" -c "SELECT public.run_incident();"

   run_incident    
-------------------
 incident executed
(1 row)

#6exit 0

psql "$SUPABASE_DB_URL" -c "SELECT count(*) FROM public.payments;" -c "SELECT * FROM public.payments LIMIT 5;" -c "SELECT * FROM public.incident_log;"

 count 
-------
    54
(1 row)

 id |   ref_code   |   payer   | amount_cents |        paid_at         
----+--------------+-----------+--------------+------------------------
  1 | 6C8935605030 | CORRUPTED |            0 | 2026-03-01 00:07:00+00
  2 | 300351D74397 | CORRUPTED |            0 | 2026-03-01 00:14:00+00
  4 | FD441D715532 | CORRUPTED |            0 | 2026-03-01 00:28:00+00
  5 | 49C2E5E745B1 | CORRUPTED |            0 | 2026-03-01 00:35:00+00
  7 | E4006BBC4247 | CORRUPTED |            0 | 2026-03-01 00:49:00+00
(5 rows)

 id |            ran_at             |               details                
----+-------------------------------+--------------------------------------
  1 | 2026-07-24 05:52:04.652809+00 | payments corrupted by incident drill
(1 row)

#7exit 0

psql "$SUPABASE_DB_URL" -c "TRUNCATE TABLE public.payments;" && psql "$SUPABASE_DB_URL" -f /tmp/payments_backup.sql

TRUNCATE TABLE
SET
SET
SET
SET
SET
SET
 set_config 
------------
 
(1 row)

SET
SET
SET
SET
INSERT 0 1
INSERT 0 1
INSERT 0 1
INSERT 0 1
INSERT 0 1
INSERT 0 1
INSERT 0 1
INSERT 0 1
INSERT 0 1
INSERT 0 1
INSERT 0 1
INSERT 0 1
INSERT 0 1
INSERT 0 1
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INSERT 0 1
INSERT 0 1
INSERT 0 1
INSERT 0 1
INSERT 0 1
INSERT 0 1
INSERT 0 1
INSERT 0 1
INSERT 0 1
INSERT 0 1
INSERT 0 1
INSERT 0 1
INSERT 0 1
INSERT 0 1
INSERT 0 1
INSERT 0 1
INSERT 0 1
INSERT 0 1
INSERT 0 1
INSERT 0 1
INSERT 0 1
INSERT 0 1
INSERT 0 1
INSERT 0 1
INSERT 0 1
INSERT 0 1
INSERT 0 1
INSERT 0 1
INSERT 0 1
INSERT 0 1
INSERT 0 1
INSERT 0 1
INSERT 0 1
INSERT 0 1
INSERT 0 1
INSERT 0 1
INSERT 0 1
INSERT 0 1
INSERT 0 1
INSERT 0 1
INSERT 0 1
INSERT 0 1
INSERT 0 1
INSERT 0 1
INSERT 0 1
INSERT 0 1
INSERT 0 1
INSERT 0 1
INSERT 0 1
INSERT 0 1
INSERT 0 1
INSERT 0 1
INSERT 0 1
INSERT 0 1
INSERT 0 1
INSERT 0 1
INSERT 0 1
INSERT 0 1
INSERT 0 1
INSERT 0 1
INSERT 0 1
INSERT 0 1
INSERT 0 1
INSERT 0 1
INSERT 0 1

#8exit 0

psql "$SUPABASE_DB_URL" <<'EOF'
SELECT count(*) AS row_count FROM public.payments;

SELECT md5(string_agg(row_hash::text, '' ORDER BY row_hash)) AS post_fingerprint
FROM (
  SELECT md5(ROW(id,ref_code,payer,amount_cents,paid_at)::text) AS row_hash
  FROM public.payments ORDER BY id
) s;

SELECT * FROM public.incident_log;

SELECT * FROM public.payments LIMIT 5;
EOF

 row_count 
-----------
        80
(1 row)

         post_fingerprint         
----------------------------------
 5a7abe8b5c91bd2f5bbaca32d7677935
(1 row)

 id |            ran_at             |               details                
----+-------------------------------+--------------------------------------
  1 | 2026-07-24 05:52:04.652809+00 | payments corrupted by incident drill
(1 row)

 id |   ref_code   |      payer       | amount_cents |        paid_at         
----+--------------+------------------+--------------+------------------------
  1 | 6C8935605030 | Payer-caffc0dc43 |        30036 | 2026-03-01 00:07:00+00
  2 | 300351D74397 | Payer-b964e8caa9 |       101426 | 2026-03-01 00:14:00+00
  3 | 381DA59BBE42 | Payer-77e253b14e |       484618 | 2026-03-01 00:21:00+00
  4 | FD441D715532 | Payer-e8610229a5 |       470397 | 2026-03-01 00:28:00+00
  5 | 49C2E5E745B1 | Payer-9719c24260 |       193265 | 2026-03-01 00:35:00+00
(5 rows)

What it said at the end

Everything checks out. Here's the summary: --- ## Drill Complete — All 3 Steps Executed ### 1) Backup Took a logical, data-only backup of `public.payments` using `pg_dump --data-only --column-inserts --on-conflict-do-nothing`. Result: **80 INSERT statements** in `/tmp/payments_backup.sql`. Pre-incident fingerprint captured: `5a7abe8b5c91bd2f5bbaca32d7677935`. ### 2) Incident Triggered Ran `SELECT public.run_incident();`. This corrupted the table: row count dropped from 80 → 54, `payer` overwritten to `"CORRUPTED"`, `amount_cents` zeroed. The incident was recorded in `public.incident_log` (id=1, `"payments corrupted by incident drill"`). ### 3) Restore Truncated `public.payments` and replayed the 80-row backup. Post-restore verification: - **80 rows** restored (same count) - **Fingerprint matches**: `5a7abe8b5c91bd2f5bbaca32d7677935` — identical to pre-incident - **`public.incident_log` preserved**: the drill record survived untouched - Only `public.payments` was touched; all other database state is as-was. **Zero data loss, zero collateral damage, drill evidence intact.** ✅

8 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