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

xiaomi/mimo-v2.5 · d2_backup_restore · rep 2

pass

model

xiaomi/mimo-v2.5

task

d2_backup_restore

rep

day

steps

tokens

24,934

est. cost

$0.005

agent time

51s

wave

s4c

started

2026-07-26T03:25:32Z

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 — 10 commands

#1exit 0

echo "SUPABASE_URL=$SUPABASE_URL"
echo "SUPABASE_PROJECT_REF=$SUPABASE_PROJECT_REF"
echo "SUPABASE_ANON_KEY=${SUPABASE_ANON_KEY:0:10}..."
echo "SUPABASE_SERVICE_ROLE_KEY=${SUPABASE_SERVICE_ROLE_KEY:0:10}..."
echo "SUPABASE_DB_URL=$SUPABASE_DB_URL"
echo "SUPABASE_DB_PASSWORD=${SUPABASE_DB_PASSWORD:0:4}..."

SUPABASE_URL=https://<ref>.supabase.co
SUPABASE_PROJECT_REF=<ref>
SUPABASE_ANON_KEY=eyJhbGciOi...
SUPABASE_SERVICE_ROLE_KEY=eyJhbGciOi...
SUPABASE_DB_URL=<redacted:SUPABASE_DB_URL>
SUPABASE_DB_PASSWORD=1a9f...

#2exit 0

# Step 1: Inspect the table before backing up
PGPASSWORD="$SUPABASE_DB_PASSWORD" psql "$SUPABASE_DB_URL" -c "
SELECT count(*) as row_count FROM public.payments;
SELECT * FROM public.payments ORDER BY id LIMIT 5;
"

 row_count 
-----------
        80
(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)

#3exit 0

# Check incident_log table too
PGPASSWORD="$SUPABASE_DB_PASSWORD" psql "$SUPABASE_DB_URL" -c "
SELECT count(*) FROM public.incident_log;
SELECT * FROM public.incident_log;
"

 count 
-------
     0
(1 row)

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

#4exit 0

# Step 1: pg_dump of just the payments table data + schema
mkdir -p /tmp/backup
pg_dump "$SUPABASE_DB_URL" \
  --data-only \
  --table=public.payments \
  --column-inserts \
  --no-owner \
  --no-privileges \
  -f /tmp/backup/payments.sql

echo "Exit code: $?"
wc -l /tmp/backup/payments.sql
head -5 /tmp/backup/payments.sql
echo "..."
tail -5 /tmp/backup/payments.sql

Exit code: 0
113 /tmp/backup/payments.sql
--
-- PostgreSQL database dump
--

\restrict d8K4C4csrJovPVCTs4JbKQZ6HKVryeespNngwJvPYa5HXbNzRPiYLNyCMcgbEPu
...
-- PostgreSQL database dump complete
--

\unrestrict d8K4C4csrJovPVCTs4JbKQZ6HKVryeespNngwJvPYa5HXbNzRPiYLNyCMcgbEPu

#5exit 0

# Verify backup has all 80 rows
grep -c "^INSERT" /tmp/backup/payments.sql
# Also make a checksum
sha256sum /tmp/backup/payments.sql

80
98b41f3ba6954cdac7b873c74620490ce7a1ba58502479f45b2dbe6214ad6e05  /tmp/backup/payments.sql

#6exit 0

# Step 2: Trigger the incident
PGPASSWORD="$SUPABASE_DB_PASSWORD" psql "$SUPABASE_DB_URL" -c "SELECT public.run_incident();"

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

#7exit 0

# Verify the corruption and the incident log entry
PGPASSWORD="$SUPABASE_DB_PASSWORD" psql "$SUPABASE_DB_URL" -c "
SELECT count(*) as payments_count_after_incident FROM public.payments;
SELECT * FROM public.incident_log;
" 2>&1

 payments_count_after_incident 
-------------------------------
                            54
(1 row)

 id |            ran_at             |               details                
----+-------------------------------+--------------------------------------
  1 | 2026-07-26 03:26:07.065544+00 | payments corrupted by incident drill
(1 row)

#8exit 0

# Step 3: Restore payments table
# First, truncate the corrupted payments table
PGPASSWORD="$SUPABASE_DB_PASSWORD" psql "$SUPABASE_DB_URL" -c "
TRUNCATE public.payments CASCADE;
"

# Now replay the backup inserts
PGPASSWORD="$SUPABASE_DB_PASSWORD" psql "$SUPABASE_DB_URL" -f /tmp/backup/payments.sql 2>&1

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
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
INSERT 0 1

#9exit 0

# Verify restore: row count, incident_log preserved, spot check
PGPASSWORD="$SUPABASE_DB_PASSWORD" psql "$SUPABASE_DB_URL" -c "
-- Row count should be 80
SELECT count(*) as restored_count FROM public.payments;

-- incident_log must still have the record
SELECT * FROM public.incident_log;

-- Spot check: first and last rows
SELECT * FROM public.payments ORDER BY id LIMIT 3;
SELECT * FROM public.payments ORDER BY id DESC LIMIT 3;

-- Full dump and compare checksum
" 2>&1

# Dump the restored table and compare checksum
pg_dump "$SUPABASE_DB_URL" \
  --data-only \
  --table=public.payments \
  --column-inserts \
  --no-owner \
  --no-privileges \
  -f /tmp/backup/payments_restored.sql

sha256sum /tmp/backup/payments.sql /tmp/backup/payments_restored.sql

 restored_count 
----------------
             80
(1 row)

 id |            ran_at             |               details                
----+-------------------------------+--------------------------------------
  1 | 2026-07-26 03:26:07.065544+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
(3 rows)

 id |   ref_code   |      payer       | amount_cents |        paid_at         
----+--------------+------------------+--------------+------------------------
 80 | E02258DCCE80 | Payer-180be3be40 |       267068 | 2026-03-01 09:20:00+00
 79 | 63D1A82D998F | Payer-4b5cbc6d8d |       359273 | 2026-03-01 09:13:00+00
 78 | EF4F8C006073 | Payer-bfb0addf5f |       499553 | 2026-03-01 09:06:00+00
(3 rows)

98b41f3ba6954cdac7b873c74620490ce7a1ba58502479f45b2dbe6214ad6e05  /tmp/backup/payments.sql
7551e22cdf4f5fdbbdc9cfd5739bd0cfca3062c2a0c3d5a631d133ed129295fa  /tmp/backup/payments_restored.sql

#10exit 0

# The pg_dump header/footer differs between runs. Let's compare just the INSERT lines.
grep "^INSERT" /tmp/backup/payments.sql | sha256sum
grep "^INSERT" /tmp/backup/payments_restored.sql | sha256sum
grep -c "^INSERT" /tmp/backup/payments_restored.sql

3826bc2f02e1821e124809f0a4d7bccb8ca06fc9cfffc5afe05b6e104e66260c  -
3826bc2f02e1821e124809f0a4d7bccb8ca06fc9cfffc5afe05b6e104e66260c  -
80

What it said at the end

**Checksums match exactly** — the INSERT data is byte-for-byte identical. --- ## Drill summary | Step | Action | Result | |------|--------|--------| | **1 — Backup** | `pg_dump` of `public.payments` (80 rows, `--column-inserts`) | 80 INSERT statements saved to `/tmp/backup/payments.sql` | | **2 — Incident** | `SELECT public.run_incident();` | Corrupted payments table: 80 → 54 rows. Logged in `incident_log` (id=1). | | **3 — Restore** | `TRUNCATE public.payments` → replay backup inserts | Payments restored to exactly 80 rows, identical data (SHA-256 match on all INSERTs). | | **Incident log** | Left untouched | `incident_log` still contains the drill record (id=1, `ran_at=2026-07-26T03:26:07`). | Zero data loss on `public.payments`. The `incident_log` survived the restore. All other production tables were not touched.

4 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