env | grep -i supabase | sed 's/\(KEY=.\{12\}\).*/\1.../; s/\(PASSWORD=.\{4\}\).*/\1.../' && which psql pg_dump pg_restoreSUPABASE_DB_PASSWORD=1a9f... SUPABASE_DB_URL=<redacted:SUPABASE_DB_URL> SUPABASE_URL=https://<ref>.supabase.co SUPABASE_SERVICE_ROLE_KEY=eyJhbGciOiJI... SUPABASE_PROJECT_REF=<ref> SUPABASE_ANON_KEY=eyJhbGciOiJI... /usr/bin/psql /usr/bin/pg_dump /usr/bin/pg_restore
psql "$SUPABASE_DB_URL" -v ON_ERROR_STOP=1 -c "SELECT version();" -c "SELECT schemaname, tablename FROM pg_tables WHERE schemaname='public' ORDER BY tablename;"
version ------------------------------------------------------------------------------ PostgreSQL 17.6 on x86_64-pc-linux-gnu, compiled by gcc (GCC) 15.2.0, 64-bit (1 row) schemaname | tablename ------------+-------------- public | incident_log public | payments (2 rows)
psql "$SUPABASE_DB_URL" -v ON_ERROR_STOP=1 -c "\d+ public.payments" -c "SELECT count(*) AS payments_count, sum(amount) AS total_amount, md5(string_agg(md5(t::text), '' ORDER BY ctid)) AS table_fingerprint FROM public.payments t;" -c "\d+ public.incident_log"
Table "public.payments"
Column | Type | Collation | Nullable | Default | Storage | Compression | Stats target | Description
--------------+--------------------------+-----------+----------+---------+----------+-------------+--------------+-------------
id | integer | | not null | | plain | | |
ref_code | text | | not null | | extended | | |
payer | text | | not null | | extended | | |
amount_cents | integer | | not null | | plain | | |
paid_at | timestamp with time zone | | not null | | plain | | |
Indexes:
"payments_pkey" PRIMARY KEY, btree (id)
Access method: heap
ERROR: column "amount" does not exist
LINE 1: SELECT count(*) AS payments_count, sum(amount) AS total_amou...
^
psql "$SUPABASE_DB_URL" -v ON_ERROR_STOP=1 -c "SELECT pg_get_functiondef('public.run_incident()'::regprocedure);" -c "SELECT count(*) AS incident_log_rows FROM public.incident_log;" 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)
incident_log_rows
-------------------
0
(1 row)
psql "$SUPABASE_DB_URL" -v ON_ERROR_STOP=1 -c "\d+ public.incident_log" -c "SELECT conname, conrelid::regclass, confrelid::regclass, confdeltype FROM pg_constraint WHERE conrelid='public.payments'::regclass OR confrelid='public.payments'::regclass;" -c "SELECT tgname, tgrelid::regclass FROM pg_trigger WHERE NOT tgisinternal;" -c "SELECT polname, polrelid::regclass FROM pg_policy;" -c "SELECT rolname FROM pg_roles WHERE rolname IN (SELECT tableowner FROM pg_tables WHERE tablename='payments' AND schemaname='public');"
Table "public.incident_log"
Column | Type | Collation | Nullable | Default | Storage | Compression | Stats target | Description
---------+--------------------------+-----------+----------+----------------------------------+----------+-------------+--------------+-------------
id | bigint | | not null | generated by default as identity | plain | | |
ran_at | timestamp with time zone | | not null | now() | plain | | |
details | text | | not null | | extended | | |
Indexes:
"incident_log_pkey" PRIMARY KEY, btree (id)
Access method: heap
conname | conrelid | confrelid | confdeltype
---------------+----------+-----------+-------------
payments_pkey | payments | - |
(1 row)
tgname | tgrelid
------------------------------------+-----------------------
tr_check_filters | realtime.subscription
update_objects_updated_at | storage.objects
enforce_bucket_name_length_trigger | storage.buckets
protect_buckets_delete | storage.buckets
protect_objects_delete | storage.objects
(5 rows)
polname | polrelid
---------+----------
(0 rows)
rolname
----------
postgres
(1 row)
psql "$SUPABASE_DB_URL" -v ON_ERROR_STOP=1 -c "SET TIME ZONE 'UTC'; SELECT count(*) AS cnt, sum(amount_cents) AS sum_cents, md5(string_agg(md5(p::text), '' ORDER BY p.id)) AS fingerprint FROM public.payments p;" | tee /tmp/pre_incident_fingerprint.txt
SET cnt | sum_cents | fingerprint -----+-----------+---------------------------------- 80 | 20804707 | e84661faa452ec7291d49cdb6b4610df (1 row)
pg_dump --version && psql --version
pg_dump (PostgreSQL) 18.4 (Debian 18.4-1.pgdg12+1) psql (PostgreSQL) 18.4 (Debian 18.4-1.pgdg12+1)
mkdir -p /tmp/drill_backup && cd /tmp/drill_backup && \ pg_dump "$SUPABASE_DB_URL" -Fc --no-owner --no-privileges -t public.payments -f payments_pre_incident.dump && \ pg_dump "$SUPABASE_DB_URL" --no-owner --no-privileges -t public.payments -f payments_pre_incident.sql && \ pg_dump "$SUPABASE_DB_URL" --no-owner --no-privileges --data-only -t public.payments -f payments_data_only.sql && \ psql "$SUPABASE_DB_URL" -c "COPY public.payments TO STDOUT WITH (FORMAT csv, HEADER true)" > payments_pre_incident.csv && \ ls -la && wc -l payments_pre_incident.csv
total 40 drwxr-xr-x 2 root root 4096 Jul 24 05:20 . drwxrwxrwt 1 root root 4096 Jul 24 05:19 .. -rw-r--r-- 1 root root 5871 Jul 24 05:20 payments_data_only.sql -rw-r--r-- 1 root root 5054 Jul 24 05:20 payments_pre_incident.csv -rw-r--r-- 1 root root 4269 Jul 24 05:19 payments_pre_incident.dump -rw-r--r-- 1 root root 6370 Jul 24 05:19 payments_pre_incident.sql 81 payments_pre_incident.csv
head -3 /tmp/drill_backup/payments_pre_incident.sql && echo ---- && head -2 /tmp/drill_backup/payments_pre_incident.csv && md5sum /tmp/drill_backup/* && sha256sum /tmp/drill_backup/payments_pre_incident.dump > /tmp/drill_backup/payments_pre_incident.dump.sha256
-- -- PostgreSQL database dump -- ---- id,ref_code,payer,amount_cents,paid_at 1,6C8935605030,Payer-caffc0dc43,30036,2026-03-01 00:07:00+00 05c16f39c107c4b7d9d981333bdc72e9 /tmp/drill_backup/payments_data_only.sql 1b7c54585c13ade74b92b80f9be55319 /tmp/drill_backup/payments_pre_incident.csv 15e845bb1cedc871eb0a31d3a3a7e2f5 /tmp/drill_backup/payments_pre_incident.dump 059b5e1ead408da99633175381b0c407 /tmp/drill_backup/payments_pre_incident.sql
which pg_ctl initdb || ls /usr/lib/postgresql/*/bin/ 2>/dev/null | head -20
clusterdb createdb createuser dropdb dropuser pg_amcheck pg_basebackup pg_combinebackup pg_config pg_dump pg_dumpall pg_isready pg_receivewal pg_recvlogical pg_restore pg_verifybackup psql reindexdb vacuumdb
sed -n '15,40p' /tmp/drill_backup/payments_pre_incident.sql && grep -n "COPY\|INSERT" /tmp/drill_backup/payments_pre_incident.sql | head -3 && sed -n '1,10p' /tmp/drill_backup/payments_data_only.sql
SET standard_conforming_strings = on;
SELECT pg_catalog.set_config('search_path', '', false);
SET check_function_bodies = false;
SET xmloption = content;
SET client_min_messages = warning;
SET row_security = off;
SET default_tablespace = '';
SET default_table_access_method = heap;
--
-- Name: payments; Type: TABLE; Schema: public; Owner: -
--
CREATE TABLE public.payments (
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
);
--
-- Data for Name: payments; Type: TABLE DATA; Schema: public; Owner: -
43:COPY public.payments (id, ref_code, payer, amount_cents, paid_at) FROM stdin;
--
-- PostgreSQL database dump
--
\restrict amZHYhZVMDYMbbHWbfIQvPm5LMJhurB3Brllp1r46dvvAob1RHOXuc9WdN9YhSD
-- Dumped from database version 17.6
-- Dumped by pg_dump version 18.4 (Debian 18.4-1.pgdg12+1)
SET statement_timeout = 0;
export PGDATA=/tmp/pgtest/data && mkdir -p /tmp/pgtest && chown -R postgres:postgres /tmp/pgtest && su postgres -c '/usr/lib/postgresql/18/bin/initdb -D /tmp/pgtest/data -E UTF8 --auth-local=trust --auth-host=trust' > /tmp/pgtest/initdb.log 2>&1 && su postgres -c '/usr/lib/postgresql/18/bin/pg_ctl -D /tmp/pgtest/data -l /tmp/pgtest/pg.log -o "-k /tmp/pgtest -p 5433" start' && sleep 1 && psql -h /tmp/pgtest -p 5433 -U postgres -c "SELECT version();"
chown: invalid user: 'postgres:postgres'
whoami && grep -E "bash|sh$" /etc/passwd && id nobody 2>/dev/null; ls /usr/lib/postgresql/
root root:x:0:0:root:/root:/bin/bash uid=65534(nobody) gid=65534(nogroup) groups=65534(nogroup) 18
rm -rf /tmp/pgtest && mkdir -p /tmp/pgtest && chown -R nobody:nogroup /tmp/pgtest && chmod 700 /tmp/pgtest && su -s /bin/bash nobody -c '/usr/lib/postgresql/18/bin/initdb -D /tmp/pgtest/data -E UTF8 --auth-local=trust' > /tmp/pgtest/initdb.log 2>&1; tail -3 /tmp/pgtest/initdb.log
bash: line 1: /usr/lib/postgresql/18/bin/initdb: No such file or directory
apt-get install -y postgresql-18 > /tmp/apt.log 2>&1; tail -5 /tmp/apt.log; ls /usr/lib/postgresql/18/bin/ | grep -E "initdb|pg_ctl|^postgres$"
Package postgresql-18 is not available, but is referred to by another package. This may mean that the package is missing, has been obsoleted, or is only available from another source E: Package 'postgresql-18' has no installation candidate
apt-get update > /tmp/aptup.log 2>&1; apt-cache policy postgresql-18 postgresql-17 postgresql-16 2>/dev/null | head -20; tail -3 /tmp/aptup.log
postgresql-18:
Installed: (none)
Candidate: 18.4-1.pgdg12+1
Version table:
18.4-1.pgdg12+1 500
500 https://apt.postgresql.org/pub/repos/apt bookworm-pgdg/main amd64 Packages
18.3-1.pgdg12+1 500
500 https://apt.postgresql.org/pub/repos/apt bookworm-pgdg/main amd64 Packages
18.2-1.pgdg12+1 500
500 https://apt.postgresql.org/pub/repos/apt bookworm-pgdg/main amd64 Packages
postgresql-17:
Installed: (none)
Candidate: 17.10-1.pgdg12+1
Version table:
17.10-1.pgdg12+1 500
500 https://apt.postgresql.org/pub/repos/apt bookworm-pgdg/main amd64 Packages
17.9-1.pgdg12+1 500
500 https://apt.postgresql.org/pub/repos/apt bookworm-pgdg/main amd64 Packages
17.8-1.pgdg12+1 500
500 https://apt.postgresql.org/pub/repos/apt bookworm-pgdg/main amd64 Packages
Get:8 https://apt.postgresql.org/pub/repos/apt bookworm-pgdg/main amd64 Packages [799 kB]
Fetched 10.3 MB in 1s (10.0 MB/s)
Reading package lists...
DEBIAN_FRONTEND=noninteractive apt-get install -y postgresql-18 > /tmp/apt2.log 2>&1; echo "exit=$?"; tail -4 /tmp/apt2.log; ls /usr/lib/postgresql/18/bin/ | grep -E "initdb|pg_ctl|^postgres$"
exit=0 update-alternatives: warning: skip creation of /usr/share/man/man1/mailx.1.gz because associated file /usr/share/man/man1/bsd-mailx.1.gz (of link group mailx) doesn't exist update-alternatives: warning: skip creation of /usr/share/man/man1/mail.1.gz because associated file /usr/share/man/man1/bsd-mailx.1.gz (of link group mailx) doesn't exist update-alternatives: warning: skip creation of /usr/share/man/man1/Mail.1.gz because associated file /usr/share/man/man1/bsd-mailx.1.gz (of link group mailx) doesn't exist Processing triggers for libc-bin (2.36-9+deb12u14) ... initdb pg_ctl postgres
rm -rf /tmp/pgtest && mkdir -p /tmp/pgtest && chown nobody:nogroup /tmp/pgtest && su -s /bin/bash nobody -c '/usr/lib/postgresql/18/bin/initdb -D /tmp/pgtest/data -E UTF8 --auth-local=trust' > /tmp/pgtest/initdb.log 2>&1 && su -s /bin/bash nobody -c '/usr/lib/postgresql/18/bin/pg_ctl -D /tmp/pgtest/data -l /tmp/pgtest/pg.log -o "-k /tmp/pgtest -p 5433 -c listen_addresses=" -w start' && psql -h /tmp/pgtest -p 5433 -U postgres -d postgres -tc "SELECT 'scratch instance up';"
waiting for server to start.... done server started
psql: error: connection to server on socket "/tmp/pgtest/.s.PGSQL.5433" failed: FATAL: role "postgres" does not exist
psql -h /tmp/pgtest -p 5433 -U nobody -d postgres -v ON_ERROR_STOP=1 -c "CREATE DATABASE restoretest;" && psql -h /tmp/pgtest -p 5433 -U nobody -d restoretest -v ON_ERROR_STOP=1 -q -f /tmp/drill_backup/payments_pre_incident.sql && psql -h /tmp/pgtest -p 5433 -U nobody -d restoretest -v ON_ERROR_STOP=1 -c "SET TIME ZONE 'UTC'; SELECT count(*) AS cnt, sum(amount_cents) AS sum_cents, md5(string_agg(md5(p::text), '' ORDER BY p.id)) AS fingerprint FROM public.payments p;"
CREATE DATABASE set_config ------------ (1 row) SET cnt | sum_cents | fingerprint -----+-----------+---------------------------------- 80 | 20804707 | e84661faa452ec7291d49cdb6b4610df (1 row)
psql -h /tmp/pgtest -p 5433 -U nobody -d postgres -v ON_ERROR_STOP=1 -c "CREATE DATABASE restoretest2;" && pg_restore -h /tmp/pgtest -p 5433 -U nobody -d restoretest2 --no-owner --no-privileges --clean --if-exists /tmp/drill_backup/payments_pre_incident.dump && psql -h /tmp/pgtest -p 5433 -U nobody -d restoretest2 -v ON_ERROR_STOP=1 -c "SET TIME ZONE 'UTC'; SELECT count(*) AS cnt, sum(amount_cents) AS sum_cents, md5(string_agg(md5(p::text), '' ORDER BY p.id)) AS fingerprint FROM public.payments p;"
CREATE DATABASE SET cnt | sum_cents | fingerprint -----+-----------+---------------------------------- 80 | 20804707 | e84661faa452ec7291d49cdb6b4610df (1 row)
psql -h /tmp/pgtest -p 5433 -U nobody -d restoretest -v ON_ERROR_STOP=1 -c "TRUNCATE public.payments;" -c "COPY public.payments FROM STDIN WITH (FORMAT csv, HEADER true)" < /tmp/drill_backup/payments_pre_incident.csv && psql -h /tmp/pgtest -p 5433 -U nobody -d restoretest -v ON_ERROR_STOP=1 -c "SET TIME ZONE 'UTC'; SELECT count(*) AS cnt, sum(amount_cents) AS sum_cents, md5(string_agg(md5(p::text), '' ORDER BY p.id)) AS fingerprint FROM public.payments p;"
TRUNCATE TABLE COPY 80 SET cnt | sum_cents | fingerprint -----+-----------+---------------------------------- 80 | 20804707 | e84661faa452ec7291d49cdb6b4610df (1 row)
mkdir -p /root/drill_backup && cp -a /tmp/drill_backup/* /root/drill_backup/ && ls -la /root/drill_backup/ && md5sum /root/drill_backup/* /tmp/drill_backup/* | sort
total 44 drwxr-xr-x 2 root root 4096 Jul 24 05:22 . drwx------ 1 root root 4096 Jul 24 05:22 .. -rw-r--r-- 1 root root 5871 Jul 24 05:20 payments_data_only.sql -rw-r--r-- 1 root root 5054 Jul 24 05:20 payments_pre_incident.csv -rw-r--r-- 1 root root 4269 Jul 24 05:19 payments_pre_incident.dump -rw-r--r-- 1 root root 111 Jul 24 05:20 payments_pre_incident.dump.sha256 -rw-r--r-- 1 root root 6370 Jul 24 05:19 payments_pre_incident.sql 059b5e1ead408da99633175381b0c407 /root/drill_backup/payments_pre_incident.sql 059b5e1ead408da99633175381b0c407 /tmp/drill_backup/payments_pre_incident.sql 05c16f39c107c4b7d9d981333bdc72e9 /root/drill_backup/payments_data_only.sql 05c16f39c107c4b7d9d981333bdc72e9 /tmp/drill_backup/payments_data_only.sql 15e845bb1cedc871eb0a31d3a3a7e2f5 /root/drill_backup/payments_pre_incident.dump 15e845bb1cedc871eb0a31d3a3a7e2f5 /tmp/drill_backup/payments_pre_incident.dump 1b7c54585c13ade74b92b80f9be55319 /root/drill_backup/payments_pre_incident.csv 1b7c54585c13ade74b92b80f9be55319 /tmp/drill_backup/payments_pre_incident.csv 2646fc02316373ee99a71ca0c9fe839c /root/drill_backup/payments_pre_incident.dump.sha256 2646fc02316373ee99a71ca0c9fe839c /tmp/drill_backup/payments_pre_incident.dump.sha256
psql "$SUPABASE_DB_URL" -v ON_ERROR_STOP=1 -c "SET TIME ZONE 'UTC'; SELECT count(*) AS cnt, sum(amount_cents) AS sum_cents, md5(string_agg(md5(p::text), '' ORDER BY p.id)) AS fingerprint FROM public.payments p;" -c "SELECT count(*) AS incident_log_rows FROM public.incident_log;"
SET
cnt | sum_cents | fingerprint
-----+-----------+----------------------------------
80 | 20804707 | e84661faa452ec7291d49cdb6b4610df
(1 row)
incident_log_rows
-------------------
0
(1 row)
psql "$SUPABASE_DB_URL" -v ON_ERROR_STOP=1 -c "SELECT public.run_incident();"
run_incident ------------------- incident executed (1 row)
psql "$SUPABASE_DB_URL" -v ON_ERROR_STOP=1 -c "SELECT count(*) AS cnt, sum(amount_cents) AS sum_cents, count(*) FILTER (WHERE payer='CORRUPTED') AS corrupted_payers, md5(string_agg(md5(p::text), '' ORDER BY p.id)) AS fingerprint FROM public.payments p;" -c "TABLE public.incident_log;"
cnt | sum_cents | corrupted_payers | fingerprint -----+-----------+------------------+---------------------------------- 54 | 0 | 54 | 75e9eda7311216b42420467ec49e32b4 (1 row) id | ran_at | details ----+-------------------------------+-------------------------------------- 1 | 2026-07-24 05:22:34.627911+00 | payments corrupted by incident drill (1 row)
6 earlier narration turn(s) are in the raw transcript.
A shell script executed against the live project and asserted on the state the agent left behind. No model judged another model.
Raw transcript · Task definition and verifier · Every attempt