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

xiaomi/mimo-v2.5 · d2_webhooks · rep 2

pass
model
xiaomi/mimo-v2.5
task
d2_webhooks
rep
2
day
2
steps
21
tokens
80,340
est. cost
$0.016
agent time
72s
wave
s4c
started
2026-07-26T03:47:00Z

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. Every INSERT into the existing table public.signups must deliver an HTTP webhook: a POST request with a JSON body containing at least the new row's email and plan values, sent to the receiver endpoint {SUPABASE_URL}/functions/v1/hook-recorder (an edge function that is already deployed on this project; SUPABASE_URL is in your environment). The receiver requires a valid project JWT in the Authorization header and records every payload it accepts. Implement the delivery from the database itself, so it fires for ANY insert into signups no matter which client performs it — no external workers, no cron, no client-side code. Delivery may be asynchronous (a few seconds is fine). Prove it end-to-end with a test insert before finishing: the receiver stores accepted payloads in public.webhook_receipts.

What it ran — 21 commands

#1exit 0
echo "SUPABASE_URL: $SUPABASE_URL"
echo "SUPABASE_PROJECT_REF: $SUPABASE_PROJECT_REF"
echo "SUPABASE_ANON_KEY: $SUPABASE_ANON_KEY"
echo "SUPABASE_SERVICE_ROLE_KEY: $SUPABASE_SERVICE_ROLE_KEY"
echo "SUPABASE_DB_URL: $SUPABASE_DB_URL"
echo "SUPABASE_DB_PASSWORD: $SUPABASE_DB_PASSWORD"
SUPABASE_URL: https://<ref>.supabase.co
SUPABASE_PROJECT_REF: <ref>
SUPABASE_ANON_KEY: <redacted:SUPABASE_ANON_KEY>
SUPABASE_SERVICE_ROLE_KEY: <redacted:SUPABASE_SERVICE_ROLE_KEY>
SUPABASE_DB_URL: <redacted:SUPABASE_DB_URL>
SUPABASE_DB_PASSWORD: <redacted:SUPABASE_DB_PASSWORD>
#2exit 0
# Check the signups table structure
psql "$SUPABASE_DB_URL" -c "\d public.signups"
                                     Table "public.signups"
   Column   |           Type           | Collation | Nullable |             Default              
------------+--------------------------+-----------+----------+----------------------------------
 id         | bigint                   |           | not null | generated by default as identity
 email      | text                     |           | not null | 
 plan       | text                     |           | not null | 'free'::text
 created_at | timestamp with time zone |           | not null | now()
Indexes:
    "signups_pkey" PRIMARY KEY, btree (id)

#3exit 0
# Check if pg_net extension exists
psql "$SUPABASE_DB_URL" -c "SELECT * FROM pg_extension WHERE extname = 'pg_net';"

# Check if webhook_receipts table exists
psql "$SUPABASE_DB_URL" -c "\d public.webhook_receipts" 2>&1
 oid | extname | extowner | extnamespace | extrelocatable | extversion | extconfig | extcondition 
-----+---------+----------+--------------+----------------+------------+-----------+--------------
(0 rows)

                                 Table "public.webhook_receipts"
   Column    |           Type           | Collation | Nullable |             Default              
-------------+--------------------------+-----------+----------+----------------------------------
 id          | bigint                   |           | not null | generated by default as identity
 received_at | timestamp with time zone |           | not null | now()
 payload     | jsonb                    |           | not null | 
Indexes:
    "webhook_receipts_pkey" PRIMARY KEY, btree (id)

#4exit 0
# Enable pg_net extension
psql "$SUPABASE_DB_URL" -c "CREATE EXTENSION IF NOT EXISTS pg_net SCHEMA extensions;"
CREATE EXTENSION
#5exit 1
# Verify pg_net is installed
psql "$SUPABASE_DB_URL" -c "SELECT net.available();"
ERROR:  function net.available() does not exist
LINE 1: SELECT net.available();
               ^
HINT:  No function matches the given name and argument types. You might need to add explicit type casts.
#6exit 0
# Check what functions are available in pg_net
psql "$SUPABASE_DB_URL" -c "SELECT routine_name FROM information_schema.routines WHERE routine_schema = 'net';"
         routine_name          
-------------------------------
 check_worker_is_up
 _await_response
 _urlencode_string
 _encode_url_with_params_array
 worker_restart
 wait_until_running
 wake
 http_get
 http_post
 http_delete
 _http_collect_response
 http_collect_response
(12 rows)

#7exit 0
# Check pg_net worker status
psql "$SUPABASE_DB_URL" -c "SELECT net.check_worker_is_up();"

# Check http_post function signature
psql "$SUPABASE_DB_URL" -c "SELECT pg_get_function_identity_arguments('net.http_post'::regproc);"
 check_worker_is_up 
--------------------
 
(1 row)

                       pg_get_function_identity_arguments                        
---------------------------------------------------------------------------------
 url text, body jsonb, params jsonb, headers jsonb, timeout_milliseconds integer
(1 row)

#8exit 0
psql "$SUPABASE_DB_URL" <<'SQL'
-- Create the trigger function that fires on INSERT into signups
CREATE OR REPLACE FUNCTION public.send_signups_webhook()
RETURNS trigger
LANGUAGE plpgsql
SECURITY DEFINER
AS $$
DECLARE
  _payload jsonb;
  _url text;
  _headers jsonb;
BEGIN
  -- Build the payload with email and plan
  _payload := jsonb_build_object(
    'email', NEW.email,
    'plan',  NEW.plan
  );

  _url := current_setting('app.settings.supabase_url') || '/functions/v1/hook-recorder';

  _headers := jsonb_build_object(
    'Content-Type',  'application/json',
    'Authorization', current_setting('app.settings.service_role_key')
  );

  -- Fire async HTTP POST via pg_net
  PERFORM net.http_post(
    url     := _url,
    body    := _payload,
    params  := NULL::jsonb,
    headers := _headers,
    timeout_milliseconds := 5000
  );

  RETURN NEW;
END;
$$;

-- Create the trigger on the signups table
CREATE TRIGGER trg_send_signups_webhook
  AFTER INSERT ON public.signups
  FOR EACH ROW
  EXECUTE FUNCTION public.send_signups_webhook();
SQL
CREATE FUNCTION
CREATE TRIGGER
#9exit 1
# Set the custom GUC settings that the trigger function reads
psql "$SUPABASE_DB_URL" -c "
ALTER DATABASE postgres SET app.settings.supabase_url = '$SUPABASE_URL';
ALTER DATABASE postgres SET app.settings.service_role_key = '$SUPABASE_SERVICE_ROLE_KEY';
"
ERROR:  permission denied to set parameter "app.settings.supabase_url"
#10exit 2
# Try connecting directly as postgres user (not through pooler)
DB_URL_DIRECT="postgresql://postgres:<redacted>@db.${SUPABASE_PROJECT_REF}.supabase.co:5432/postgres"
psql "$DB_URL_DIRECT" -c "
ALTER DATABASE postgres SET app.settings.supabase_url = '$SUPABASE_URL';
ALTER DATABASE postgres SET app.settings.service_role_key = '$SUPABASE_SERVICE_ROLE_KEY';
"
psql: error: connection to server at "db.<ref>.supabase.co" (2600:1f18:5b28:201:95fb:32bf:d264:4d3e), port 5432 failed: Network is unreachable
	Is the server running on that host and accepting TCP/IP connections?
#11exit 0
# Simpler approach: hardcode the values directly in the function
psql "$SUPABASE_DB_URL" <<SQL
CREATE OR REPLACE FUNCTION public.send_signups_webhook()
RETURNS trigger
LANGUAGE plpgsql
SECURITY DEFINER
AS \\\$\\\$
DECLARE
  _payload jsonb;
  _url text;
  _headers jsonb;
BEGIN
  _payload := jsonb_build_object(
    'email', NEW.email,
    'plan',  NEW.plan
  );

  _url := '${SUPABASE_URL}/functions/v1/hook-recorder';

  _headers := jsonb_build_object(
    'Content-Type',  'application/json',
    'Authorization', '${SUPABASE_SERVICE_ROLE_KEY}'
  );

  PERFORM net.http_post(
    url     := _url,
    body    := _payload,
    params  := NULL::jsonb,
    headers := _headers,
    timeout_milliseconds := 5000
  );

  RETURN NEW;
END;
\\\$\\\$;
SQL
COMMIT
invalid command \$
ERROR:  syntax error at or near "DECLARE"
LINE 6: DECLARE
        ^
ERROR:  syntax error at or near "_url"
LINE 1: _url text;
        ^
ERROR:  syntax error at or near "_headers"
LINE 1: _headers jsonb;
        ^
ERROR:  syntax error at or near "_payload"
LINE 2:   _payload := jsonb_build_object(
          ^
ERROR:  syntax error at or near "_url"
LINE 1: _url := 'https://<ref>.supabase.co/functions/...
        ^
ERROR:  syntax error at or near "_headers"
LINE 1: _headers := jsonb_build_object(
        ^
ERROR:  syntax error at or near "PERFORM"
LINE 1: PERFORM net.http_post(
        ^
ERROR:  syntax error at or near "RETURN"
LINE 1: RETURN NEW;
        ^
WARNING:  there is no transaction in progress
invalid command \$
#12exit 0
cat > /tmp/webhook_func.sql << 'EOSQL'
CREATE OR REPLACE FUNCTION public.send_signups_webhook()
RETURNS trigger
LANGUAGE plpgsql
SECURITY DEFINER
AS $$
DECLARE
  _payload jsonb;
  _url text;
  _headers jsonb;
BEGIN
  _payload := jsonb_build_object(
    'email', NEW.email,
    'plan',  NEW.plan
  );

  _url := '${SUPABASE_URL}/functions/v1/hook-recorder';

  _headers := jsonb_build_object(
    'Content-Type',  'application/json',
    'Authorization', '${SUPABASE_SERVICE_ROLE_KEY}'
  );

  PERFORM net.http_post(
    url     := _url,
    body    := _payload,
    params  := NULL::jsonb,
    headers := _headers,
    timeout_milliseconds := 5000
  );

  RETURN NEW;
END;
$$;
EOSQL

# Now substitute the environment variables
envsubst < /tmp/webhook_func.sql > /tmp/webhook_func_resolved.sql
cat /tmp/webhook_func_resolved.sql
bash: line 38: envsubst: command not found
#13exit 0
cat > /tmp/webhook_func.sql << 'EOSQL'
CREATE OR REPLACE FUNCTION public.send_signups_webhook()
RETURNS trigger
LANGUAGE plpgsql
SECURITY DEFINER
AS $$
DECLARE
  _payload jsonb;
  _url text;
  _headers jsonb;
BEGIN
  _payload := jsonb_build_object(
    'email', NEW.email,
    'plan',  NEW.plan
  );

  _url := '__SUPABASE_URL__/functions/v1/hook-recorder';

  _headers := jsonb_build_object(
    'Content-Type',  'application/json',
    'Authorization', '__SERVICE_ROLE_KEY__'
  );

  PERFORM net.http_post(
    url     := _url,
    body    := _payload,
    params  := NULL::jsonb,
    headers := _headers,
    timeout_milliseconds := 5000
  );

  RETURN NEW;
END;
$$;
EOSQL

# Substitute placeholders with actual values using sed
sed -i "s|__SUPABASE_URL__|${SUPABASE_URL}|g" /tmp/webhook_func.sql
sed -i "s|__SERVICE_ROLE_KEY__|${SUPABASE_SERVICE_ROLE_KEY}|g" /tmp/webhook_func.sql

cat /tmp/webhook_func.sql
CREATE OR REPLACE FUNCTION public.send_signups_webhook()
RETURNS trigger
LANGUAGE plpgsql
SECURITY DEFINER
AS $$
DECLARE
  _payload jsonb;
  _url text;
  _headers jsonb;
BEGIN
  _payload := jsonb_build_object(
    'email', NEW.email,
    'plan',  NEW.plan
  );

  _url := 'https://<ref>.supabase.co/functions/v1/hook-recorder';

  _headers := jsonb_build_object(
    'Content-Type',  'application/json',
    'Authorization', '<redacted:SUPABASE_SERVICE_ROLE_KEY>'
  );

  PERFORM net.http_post(
    url     := _url,
    body    := _payload,
    params  := NULL::jsonb,
    headers := _headers,
    timeout_milliseconds := 5000
  );

  RETURN NEW;
END;
$$;
#14exit 0
psql "$SUPABASE_DB_URL" -f /tmp/webhook_func.sql
CREATE FUNCTION
#15exit 0
# Verify the trigger exists
psql "$SUPABASE_DB_URL" -c "SELECT tgname, tgenabled FROM pg_trigger WHERE tgrelid = 'public.signups'::regclass AND NOT tgisinternal;"

# Verify the function source
psql "$SUPABASE_DB_URL" -c "\df+ public.send_signups_webhook"
          tgname          | tgenabled 
--------------------------+-----------
 trg_send_signups_webhook | O
(1 row)

                                                                                              List of functions
 Schema |         Name         | Result data type | Argument data types | Type | Volatility | Parallel |  Owner   | Security | Leakproof? |    Access privileges     | Language | Internal name | Description 
--------+----------------------+------------------+---------------------+------+------------+----------+----------+----------+------------+--------------------------+----------+---------------+-------------
 public | send_signups_webhook | trigger          |                     | func | volatile   | unsafe   | postgres | definer  | no         | =X/postgres             +| plpgsql  |               | 
        |                      |                  |                     |      |            |          |          |          |            | postgres=X/postgres     +|          |               | 
        |                      |                  |                     |      |            |          |          |          |            | anon=X/postgres         +|          |               | 
        |                      |                  |                     |      |            |          |          |          |            | authenticated=X/postgres+|          |               | 
        |                      |                  |                     |      |            |          |          |          |            | service_role=X/postgres  |          |               | 
(1 row)

#16exit 0
# Check current state of both tables
psql "$SUPABASE_DB_URL" -c "SELECT count(*) AS signups_count FROM public.signups;"
psql "$SUPABASE_DB_URL" -c "SELECT count(*) AS receipts_count FROM public.webhook_receipts;"
 signups_count 
---------------
             0
(1 row)

 receipts_count 
----------------
              0
(1 row)

#17exit 0
# Perform the test INSERT
psql "$SUPABASE_DB_URL" -c "INSERT INTO public.signups (email, plan) VALUES ('test-user@example.com', 'pro');"
INSERT 0 1
#18exit 0
# Wait a few seconds for async delivery, then check
sleep 5
psql "$SUPABASE_DB_URL" -c "SELECT * FROM public.webhook_receipts ORDER BY id;"
 id | received_at | payload 
----+-------------+---------
(0 rows)

#19exit 0
# Check pg_net request status
psql "$SUPABASE_DB_URL" -c "SELECT * FROM net._http_response;" 2>&1
psql "$SUPABASE_DB_URL" -c "SELECT * FROM net.http_request_queue;" 2>&1
 id | status_code |   content_type   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            headers                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            |                                          content                                           | timed_out | error_msg |            created            
----+-------------+------------------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+--------------------------------------------------------------------------------------------+-----------+-----------+-------------------------------
  1 |         401 | application/json | {"date": "Sun, 26 Jul 2026 03:48:01 GMT", "vary": "Accept-Encoding", "cf-ray": "a2106d247efad91c-IAD", "server": "cloudflare", "alt-svc": "h3=\":443\"; ma=86400", "set-cookie": "__cf_bm=BQEJkbR_gNMIv3hqB7aXkDZDN7kW7npdarI2w.IbYAc-1785037681.3604321-1.0.1.1-QCAffcSq47KJC1nZ55z6ck5KFyDCMVmdkTqbTVZRQ22se0EUBM9i0jVEZGgqc5gjtWGznkZ4KI62JB_exJOSHd5mdbnz__i9VU7HK1EaaJ5HXLTIymW7vgm6PpYSWVCZ; HttpOnly; SameSite=None; Secure; Path=/; Domain=supabase.co; Expires=Sun, 26 Jul 2026 04:18:01 GMT", "x-served-by": "supabase-edge-runtime", "content-type": "application/json", "sb-error-code": "UNAUTHORIZED_INVALID_JWT_FORMAT", "sb-request-id": "019f9c89-72d3-7f99-9bf6-71c7c9881813", "sb-project-ref": "<ref>", "cf-cache-status": "DYNAMIC", "x-sb-edge-region": "us-east-1", "sb-gateway-version": "1", "strict-transport-security": "max-age=31536000; includeSubDomains; preload", "access-control-allow-origin": "*", "access-control-allow-headers": "authorization, x-client-info, apikey"} | {"code":"UNAUTHORIZED_INVALID_JWT_FORMAT","message":"Auth header is not 'Bearer {token}'"} | f         |           | 2026-07-26 03:48:01.351067+00
(1 row)

 id | method | url | headers | body | timeout_milliseconds 
----+--------+-----+---------+------+----------------------
(0 rows)

#20exit 0
# Fix the function to use Bearer prefix
cat > /tmp/webhook_func.sql << 'EOSQL'
CREATE OR REPLACE FUNCTION public.send_signups_webhook()
RETURNS trigger
LANGUAGE plpgsql
SECURITY DEFINER
AS $$
DECLARE
  _payload jsonb;
  _url text;
  _headers jsonb;
BEGIN
  _payload := jsonb_build_object(
    'email', NEW.email,
    'plan',  NEW.plan
  );

  _url := '__SUPABASE_URL__/functions/v1/hook-recorder';

  _headers := jsonb_build_object(
    'Content-Type',  'application/json',
    'Authorization', 'Bearer __SERVICE_ROLE_KEY__'
  );

  PERFORM net.http_post(
    url     := _url,
    body    := _payload,
    params  := NULL::jsonb,
    headers := _headers,
    timeout_milliseconds := 5000
  );

  RETURN NEW;
END;
$$;
EOSQL

sed -i "s|__SUPABASE_URL__|${SUPABASE_URL}|g" /tmp/webhook_func.sql
sed -i "s|__SERVICE_ROLE_KEY__|${SUPABASE_SERVICE_ROLE_KEY}|g" /tmp/webhook_func.sql
psql "$SUPABASE_DB_URL" -f /tmp/webhook_func.sql
CREATE FUNCTION
#21exit 0
# Do a second test insert
psql "$SUPABASE_DB_URL" -c "INSERT INTO public.signups (email, plan) VALUES ('webhook-test-2@demo.com', 'enterprise');"

# Wait for async delivery
sleep 5

# Check webhook_receipts
psql "$SUPABASE_DB_URL" -c "SELECT * FROM public.webhook_receipts ORDER BY id;"
INSERT 0 1
 id |          received_at          |                          payload                           
----+-------------------------------+------------------------------------------------------------
  2 | 2026-07-26 03:48:20.434681+00 | {"plan": "enterprise", "email": "webhook-test-2@demo.com"}
(1 row)

What it said at the end

The error is clear: `Auth header is not 'Bearer {token}'`. The JWT needs a `Bearer ` prefix. Let me fix the function:

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