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

moonshotai/kimi-k3 · d2_backup_restore · rep 3

pass

model

moonshotai/kimi-k3

task

d2_backup_restore

rep

day

steps

tokens

21,140

est. cost

$0.159

agent time

139s

wave

started

2026-07-24T05:22:45Z

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

env | grep -i supabase | sed 's/=.*KEY.*/=<redacted>/; s/PASSWORD=.*/PASSWORD=<redacted>/' ; which pg_dump psql; pg_dump --version; psql --version

SUPABASE_DB_PASSWORD=<redacted>
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>
/usr/bin/pg_dump
/usr/bin/psql
pg_dump (PostgreSQL) 18.4 (Debian 18.4-1.pgdg12+1)
psql (PostgreSQL) 18.4 (Debian 18.4-1.pgdg12+1)

#2exit 0

psql "$SUPABASE_DB_URL" -c "\dt public.*" -c "SELECT count(*) AS payments_count FROM public.payments;" -c "SELECT pg_get_functiondef('public.run_incident()'::regprocedure);"

              List of tables
 Schema |     Name     | Type  |  Owner   
--------+--------------+-------+----------
 public | incident_log | table | postgres
 public | payments     | table | postgres
(2 rows)

 payments_count 
----------------
             80
(1 row)

                                     pg_get_functiondef                                      
---------------------------------------------------------------------------------------------
 CREATE OR REPLACE FUNCTION public.run_incident()                                           +
  RETURNS text                                                                              +
  LANGUAGE plpgsql                                                                          +
 AS $function$                                                                              +
 begin                                                                                      +
   update public.payments set amount_cents = 0, payer = 'CORRUPTED';                        +
   delete from public.payments where id % 3 = 0;                                            +
   insert into public.incident_log(details) values ('payments corrupted by incident drill');+
   return 'incident executed';                                                              +
 end                                                                                        +
 $function$                                                                                 +
 
(1 row)

#3exit 0

psql "$SUPABASE_DB_URL" -c "\d public.payments" -c "SELECT count(*) AS rows, md5(string_agg(t::text, '' ORDER BY id)) AS data_hash FROM public.payments t;"

                         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)

 rows |            data_hash             
------+----------------------------------
   80 | d3a6a92ce451f51655bcda514e9a43d4
(1 row)

#4exit 0

mkdir -p /root/drill_backup && cd /root/drill_backup && \
pg_dump "$SUPABASE_DB_URL" --table=public.payments --file=payments_full_backup.sql && \
pg_dump "$SUPABASE_DB_URL" --table=public.payments --data-only --column-inserts --file=payments_data_inserts.sql && \
psql "$SUPABASE_DB_URL" -c "\copy (SELECT * FROM public.payments ORDER BY id) TO 'payments_backup.csv' WITH (FORMAT csv, HEADER true)" && \
ls -la && wc -l payments_backup.csv && head -3 payments_backup.csv

COPY 80
total 40
drwxr-xr-x 2 root root  4096 Jul 24 05:24 .
drwx------ 1 root root  4096 Jul 24 05:23 ..
-rw-r--r-- 1 root root  5054 Jul 24 05:24 payments_backup.csv
-rw-r--r-- 1 root root 13237 Jul 24 05:24 payments_data_inserts.sql
-rw-r--r-- 1 root root  6665 Jul 24 05:24 payments_full_backup.sql
81 payments_backup.csv
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

#5exit 0

cd /root/drill_backup && \
grep -c "^INSERT INTO public.payments" payments_data_inserts.sql && \
grep -A2 "COPY public.payments" payments_full_backup.sql | head -4 && \
grep -c "CORRUPTED" payments_full_backup.sql payments_data_inserts.sql payments_backup.csv; \
md5sum * && echo "BACKUP VERIFIED OK"

80
COPY public.payments (id, ref_code, payer, amount_cents, paid_at) FROM stdin;
1	6C8935605030	Payer-caffc0dc43	30036	2026-03-01 00:07:00+00
2	300351D74397	Payer-b964e8caa9	101426	2026-03-01 00:14:00+00
payments_full_backup.sql:0
payments_data_inserts.sql:0
payments_backup.csv:0
1b7c54585c13ade74b92b80f9be55319  payments_backup.csv
f818517624b4316f5750fd5c10e59940  payments_data_inserts.sql
027bcd3e8455358da47ad7376897d6dd  payments_full_backup.sql
BACKUP VERIFIED OK

#6exit 0

psql "$SUPABASE_DB_URL" -c "SELECT public.run_incident();" -c "SELECT count(*) AS rows_after_incident FROM public.payments;" -c "SELECT * FROM public.incident_log;" -c "SELECT * FROM public.payments ORDER BY id LIMIT 3;"

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

 rows_after_incident 
---------------------
                  54
(1 row)

 id |            ran_at             |               details                
----+-------------------------------+--------------------------------------
  1 | 2026-07-24 05:24:39.238846+00 | payments corrupted by incident drill
(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
(3 rows)

#7exit 0

psql "$SUPABASE_DB_URL" -v ON_ERROR_STOP=1 <<'EOF'
BEGIN;
TRUNCATE ONLY public.payments;
\copy public.payments FROM '/root/drill_backup/payments_backup.csv' WITH (FORMAT csv, HEADER true)
COMMIT;
EOF

BEGIN
TRUNCATE TABLE
COPY 80
COMMIT

#8exit 0

psql "$SUPABASE_DB_URL" -c "SELECT count(*) AS rows, md5(string_agg(t::text, '' ORDER BY id)) AS data_hash FROM public.payments t;" -c "SELECT count(*) AS corrupted_rows FROM public.payments WHERE payer='CORRUPTED' OR amount_cents=0;" -c "SELECT * FROM public.incident_log;"

 rows |            data_hash             
------+----------------------------------
   80 | d3a6a92ce451f51655bcda514e9a43d4
(1 row)

 corrupted_rows 
----------------
              0
(1 row)

 id |            ran_at             |               details                
----+-------------------------------+--------------------------------------
  1 | 2026-07-24 05:24:39.238846+00 | payments corrupted by incident drill
(1 row)

What it said at the end

Drill complete — all three steps executed successfully with verified results: **1) Backup (pre-incident):** Recorded baseline (80 rows, hash `d3a6a92ce451f51655bcda514e9a43d4`), then created verified backups in `/root/drill_backup/`: - `payments_full_backup.sql` — pg_dump with full table definition + data - `payments_data_inserts.sql` — pg_dump data-only, 80 INSERT statements (confirmed count) - `payments_backup.csv` — CSV copy, 80 data rows **2) Incident triggered:** `SELECT public.run_incident()` executed — it zeroed `amount_cents`, set `payer='CORRUPTED'`, and deleted every 3rd row (80 → 54 rows). It logged itself in `public.incident_log`. **3) Restore (payments only):** In a single transaction, `TRUNCATE ONLY public.payments` + `\copy` from the CSV backup → `COMMIT`. No other table was touched. **Verification:** - ✅ 80 rows restored, data hash `d3a6a92ce451f51655bcda514e9a43d4` — byte-identical to the pre-incident baseline - ✅ 0 corrupted rows remain - ✅ `incident_log` record of the incident survived intact - ✅ All other production state untouched

5 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