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

z-ai/glm-5.2 · d2_backup_restore · rep 2

pass
model
z-ai/glm-5.2
task
d2_backup_restore
rep
2
day
2
steps
8
tokens
19,008
est. cost
$0.029
agent time
184s
wave
s4
started
2026-07-24T15:41:04Z

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 "=== Environment check ===" && echo "SUPABASE_URL: set" && echo "SUPABASE_PROJECT_REF: set" && echo "SUPABASE_ANON_KEY: set" && echo "SUPABASE_SERVICE_ROLE_KEY: set" && echo "SUPABASE_DB_URL: set" && echo "SUPABASE_DB_PASSWORD: set" && echo "" && echo "=== Tools check ===" && which pg_dump && which psql && echo "" && echo "=== Connection test ===" && psql "$SUPABASE_DB_URL" -c "SELECT current_database(), current_user;" 2>&1
=== Environment check ===
SUPABASE_URL: set
SUPABASE_PROJECT_REF: set
SUPABASE_ANON_KEY: set
SUPABASE_SERVICE_ROLE_KEY: set
SUPABASE_DB_URL: set
SUPABASE_DB_PASSWORD: set

=== Tools check ===
/usr/bin/pg_dump
/usr/bin/psql

=== Connection test ===
 current_database | current_user 
------------------+--------------
 postgres         | postgres
(1 row)
#2exit 0
echo "=== Pre-incident: payments row count ===" && psql "$SUPABASE_DB_URL" -c "SELECT count(*) FROM public.payments;" && echo "" && echo "=== Pre-incident: incident_log (should be empty or have prior records) ===" && psql "$SUPABASE_DB_URL" -c "SELECT count(*) FROM public.incident_log;" && echo "" && echo "=== Payments table structure ===" && psql "$SUPABASE_DB_URL" -c "\d public.payments"
=== Pre-incident: payments row count ===
 count 
-------
    80
(1 row)


=== Pre-incident: incident_log (should be empty or have prior records) ===
 count 
-------
     0
(1 row)


=== Payments table structure ===
                         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)
#3exit 0
# Take a full logical backup of ONLY the payments table (schema + data)
pg_dump "$SUPABASE_DB_URL" \
  --table=public.payments \
  --no-owner \
  --no-privileges \
  --format=plain \
  --file=/tmp/payments_backup.sql 2>&1

echo "=== Backup file created ==="
ls -la /tmp/payments_backup.sql
echo ""
echo "=== Backup file size ==="
wc -c /tmp/payments_backup.sql
echo ""
echo "=== Verify backup contains COPY data ==="
grep -c "^COPY public.payments" /tmp/payments_backup.sql
echo ""
echo "=== Compute pre-incident checksum for verification ==="
psql "$SUPABASE_DB_URL" -t -A -c "SELECT md5(string_agg(t::text, '|' ORDER BY id)) FROM public.payments t;" > /tmp/payments_checksum_pre.txt
cat /tmp/payments_checksum_pre.txt
=== Backup file created ===
-rw-r--r-- 1 root root 6370 Jul 24 15:42 /tmp/payments_backup.sql

=== Backup file size ===
6370 /tmp/payments_backup.sql

=== Verify backup contains COPY data ===
1

=== Compute pre-incident checksum for verification ===
0dc7461b7b8bece10b61939f1ac53348
#4exit 0
# Extra safety: export all rows as CSV for verification
psql "$SUPABASE_DB_URL" -c "\COPY (SELECT * FROM public.payments ORDER BY id) TO '/tmp/payments_pre_incident.csv' WITH CSV HEADER" 2>&1
echo "=== CSV export ==="
wc -l /tmp/payments_pre_incident.csv
echo ""
echo "=== Row count check (should be 80) ==="
psql "$SUPABASE_DB_URL" -t -A -c "SELECT count(*) FROM public.payments;"
echo ""
echo "=== Make backup copies for safety ==="
cp /tmp/payments_backup.sql /tmp/payments_backup_backup.sql
ls -la /tmp/payments_*.sql /tmp/payments_*.csv /tmp/payments_*.txt
COPY 80
=== CSV export ===
81 /tmp/payments_pre_incident.csv

=== Row count check (should be 80) ===
80

=== Make backup copies for safety ===
-rw-r--r-- 1 root root 6370 Jul 24 15:42 /tmp/payments_backup.sql
-rw-r--r-- 1 root root 6370 Jul 24 15:42 /tmp/payments_backup_backup.sql
-rw-r--r-- 1 root root   33 Jul 24 15:42 /tmp/payments_checksum_pre.txt
-rw-r--r-- 1 root root 5054 Jul 24 15:42 /tmp/payments_pre_incident.csv
#5exit 0
echo "=== Triggering incident: SELECT public.run_incident(); ==="
psql "$SUPABASE_DB_URL" -c "SELECT public.run_incident();" 2>&1
echo ""
echo "=== Verify incident was logged ==="
psql "$SUPABASE_DB_URL" -c "SELECT * FROM public.incident_log;" 2>&1
echo ""
echo "=== Post-incident: payments row count ==="
psql "$SUPABASE_DB_URL" -c "SELECT count(*) FROM public.payments;" 2>&1
=== Triggering incident: SELECT public.run_incident(); ===
   run_incident    
-------------------
 incident executed
(1 row)


=== Verify incident was logged ===
 id |            ran_at             |               details                
----+-------------------------------+--------------------------------------
  1 | 2026-07-24 15:43:02.782319+00 | payments corrupted by incident drill
(1 row)


=== Post-incident: payments row count ===
 count 
-------
    54
(1 row)
#6exit 0
# First, save the incident_log so it survives the restore
# The backup file contains schema (CREATE TABLE) + data (COPY) for payments only.
# Since the table still exists but is corrupted, we need to:
# 1. Truncate the corrupted payments table
# 2. Restore data from backup

# But first, let's check if the schema is still intact
echo "=== Current table structure (post-incident) ==="
psql "$SUPABASE_DB_URL" -c "\d public.payments" 2>&1
echo ""
echo "=== Current incident_log (must survive) ==="
psql "$SUPABASE_DB_URL" -c "SELECT * FROM public.incident_log;" 2>&1
=== Current table structure (post-incident) ===
                         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)


=== Current incident_log (must survive) ===
 id |            ran_at             |               details                
----+-------------------------------+--------------------------------------
  1 | 2026-07-24 15:43:02.782319+00 | payments corrupted by incident drill
(1 row)
#7exit 0
# The backup contains schema + data. Since the table still exists with correct schema,
# we only need to restore the DATA. Extract just the COPY block from the backup.
echo "=== Inspecting backup structure ==="
grep -n "^COPY\|^\\\\\." /tmp/payments_backup.sql
echo ""
echo "=== Truncating corrupted payments data ==="
psql "$SUPABASE_DB_URL" -c "TRUNCATE public.payments;" 2>&1
echo ""
echo "=== Restoring data from backup (COPY block only) ==="
# Extract everything between COPY and the terminating \. line, inclusive
sed -n '/^COPY public.payments/,/^\\.$/p' /tmp/payments_backup.sql | psql "$SUPABASE_DB_URL" 2>&1
echo ""
echo "=== Post-restore: payments row count ==="
psql "$SUPABASE_DB_URL" -c "SELECT count(*) FROM public.payments;" 2>&1
=== Inspecting backup structure ===
43:COPY public.payments (id, ref_code, payer, amount_cents, paid_at) FROM stdin;
124:\.

=== Truncating corrupted payments data ===
TRUNCATE TABLE

=== Restoring data from backup (COPY block only) ===
COPY 80

=== Post-restore: payments row count ===
 count 
-------
    80
(1 row)
#8exit 0
# Compute post-restore checksum and compare with pre-incident checksum
psql "$SUPABASE_DB_URL" -t -A -c "SELECT md5(string_agg(t::text, '|' ORDER BY id)) FROM public.payments t;" > /tmp/payments_checksum_post.txt
echo "=== Pre-incident checksum:  ==="
cat /tmp/payments_checksum_pre.txt
echo ""
echo "=== Post-restore checksum: ==="
cat /tmp/payments_checksum_post.txt
echo ""
echo "=== Checksums match? ==="
if [ "$(cat /tmp/payments_checksum_pre.txt)" = "$(cat /tmp/payments_checksum_post.txt)" ]; then
    echo "✅ MATCH — payments table restored to exact pre-incident state"
else
    echo "❌ MISMATCH — data is not identical"
fi
echo ""
echo "=== Incident log preserved? ==="
psql "$SUPABASE_DB_URL" -c "SELECT * FROM public.incident_log;" 2>&1
echo ""
echo "=== Row-by-row verification against CSV backup ==="
psql "$SUPABASE_DB_URL" -c "\COPY (SELECT * FROM public.payments ORDER BY id) TO '/tmp/payments_post_restore.csv' WITH CSV HEADER" 2>&1
diff /tmp/payments_pre_incident.csv /tmp/payments_post_restore.csv
RESULT=$?
if [ $RESULT -eq 0 ]; then
    echo "✅ EXACT MATCH — all 80 rows identical to pre-incident state"
else
    echo "❌ DIFFERENCES DETECTED (diff exit: $RESULT)"
fi
=== Pre-incident checksum:  ===
0dc7461b7b8bece10b61939f1ac53348

=== Post-restore checksum: ===
0dc7461b7b8bece10b61939f1ac53348

=== Checksums match? ===
✅ MATCH — payments table restored to exact pre-incident state

=== Incident log preserved? ===
 id |            ran_at             |               details                
----+-------------------------------+--------------------------------------
  1 | 2026-07-24 15:43:02.782319+00 | payments corrupted by incident drill
(1 row)


=== Row-by-row verification against CSV backup ===
COPY 80
✅ EXACT MATCH — all 80 rows identical to pre-incident state

What it said at the end

## Drill Complete — Summary The incident-response drill was executed successfully in the required order: ### 1. Backup (pre-incident) - Took a logical backup of `public.payments` using `pg_dump --table=public.payments` (schema + data, 80 rows) - Created a secondary CSV export of all rows as an extra verification reference - Recorded an MD5 checksum of the full table for post-restore validation ### 2. Incident triggered - Ran `SELECT public.run_incident();` — it returned `"incident executed"` - The function corrupted the payments table, dropping it from 80 to 54 rows - The incident was recorded in `public.incident_log` (1 row: *"payments corrupted by incident drill"*) ### 3. Restore - Truncated the corrupted `payments` table (schema was still intact) - Restored the exact 80 rows from the backup's `COPY` data block - **Checksum verification:** pre-incident `0dc7461b7b8bece10b61939f1ac53348` = post-restore `0dc7461b7b8bece10b61939f1ac53348` ✅ - **Row-by-row CSV diff:** zero differences ✅ - **Incident log preserved:** the `incident_log` record survived the restore untouched ✅ The `payments` table is back to its exact pre-incident state — same 80 rows, same values, zero loss — and the audit trail in `incident_log` remains 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