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

qwen/qwen3-coder-plus · d2_webhooks · rep 3

pass

model

qwen/qwen3-coder-plus

task

d2_webhooks

rep

day

steps

tokens

81,208

est. cost

$0.130

agent time

77s

wave

s4c

started

2026-07-26T02:14:32Z

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. 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 — 25 commands

#1exit 0

env | grep SUPABASE_

SUPABASE_DB_PASSWORD=<redacted:SUPABASE_DB_PASSWORD>
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>

#2exit 0

psql "${SUPABASE_DB_URL}" -c "\\dt public.signups"

           List of tables
 Schema |  Name   | Type  |  Owner   
--------+---------+-------+----------
 public | signups | table | postgres
(1 row)

#3exit 0

psql "${SUPABASE_DB_URL}" -c "\\dt public.webhook_receipts"

                List of tables
 Schema |       Name       | Type  |  Owner   
--------+------------------+-------+----------
 public | webhook_receipts | table | postgres
(1 row)

#4exit 0

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)

#5exit 0

psql "${SUPABASE_DB_URL}" -c "\\d public.webhook_receipts"

                                 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)

#6exit 0

psql "${SUPABASE_DB_URL}" -c "SELECT * FROM pg_extension WHERE extname = 'http';"

 oid | extname | extowner | extnamespace | extrelocatable | extversion | extconfig | extcondition 
-----+---------+----------+--------------+----------------+------------+-----------+--------------
(0 rows)

#7exit 0

psql "${SUPABASE_DB_URL}" -c "\\dx"

                                                     List of installed extensions
        Name        | Version | Default version |   Schema   |                              Description                               
--------------------+---------+-----------------+------------+------------------------------------------------------------------------
 pg_stat_statements | 1.11    | 1.11            | extensions | track planning and execution statistics of all SQL statements executed
 pgcrypto           | 1.3     | 1.3             | extensions | cryptographic functions
 plpgsql            | 1.0     | 1.0             | pg_catalog | PL/pgSQL procedural language
 supabase_vault     | 0.3.1   | 0.3.1           | vault      | Supabase Vault Extension
 uuid-ossp          | 1.1     | 1.1             | extensions | generate universally unique identifiers (UUIDs)
(5 rows)

#8exit 0

psql "${SUPABASE_DB_URL}" -c "CREATE EXTENSION IF NOT EXISTS pg_net WITH SCHEMA extensions;"

CREATE EXTENSION

#9exit 0

psql "${SUPABASE_DB_URL}" -c "
CREATE OR REPLACE FUNCTION public.send_signup_webhook()
 RETURNS trigger
 LANGUAGE plpgsql
AS \$\$
BEGIN
  -- Queue the webhook POST in the background
  PERFORM net.http_post(
    url := '${SUPABASE_URL}/functions/v1/hook-recorder',
    body := json_build_object('email', NEW.email, 'plan', NEW.plan)::text,
    headers := json_build_object(
      'Content-Type', 'application/json',
      'Authorization', 'Bearer ${SUPABASE_SERVICE_ROLE_KEY}'
    )::text
  );
  RETURN NEW;
END;
\$\$;"

CREATE FUNCTION

#10exit 0

psql "${SUPABASE_DB_URL}" -c "
CREATE TRIGGER signup_webhook_trigger
  AFTER INSERT ON public.signups
  FOR EACH ROW
  EXECUTE FUNCTION public.send_signup_webhook();"

CREATE TRIGGER

#11exit 1

psql "${SUPABASE_DB_URL}" -c "INSERT INTO public.signups (email, plan) VALUES ('test@example.com', 'premium');"

ERROR:  function net.http_post(url => unknown, body => text, headers => text) does not exist
LINE 1: SELECT net.http_post(
               ^
HINT:  No function matches the given name and argument types. You might need to add explicit type casts.
QUERY:  SELECT net.http_post(
    url := 'https://<ref>.supabase.co/functions/v1/hook-recorder',
    body := json_build_object('email', NEW.email, 'plan', NEW.plan)::text,
    headers := json_build_object(
      'Content-Type', 'application/json',
      'Authorization', 'Bearer <redacted:SUPABASE_SERVICE_ROLE_KEY>'
    )::text
  )
CONTEXT:  PL/pgSQL function send_signup_webhook() line 4 at PERFORM

#12exit 0

psql "${SUPABASE_DB_URL}" -c "SELECT proname, proargnames FROM pg_proc WHERE pronamespace = 'extensions'::regnamespace AND proname LIKE '%net%';"

       proname       | proargnames 
---------------------+-------------
 grant_pg_net_access | 
(1 row)

#13exit 0

psql "${SUPABASE_DB_URL}" -c "SELECT n.nspname, p.proname, pg_get_function_arguments(p.oid) FROM pg_proc p JOIN pg_namespace n ON p.pronamespace = n.oid WHERE n.nspname = 'net';"

 nspname |            proname            |                                                                                 pg_get_function_arguments                                                                                  
---------+-------------------------------+--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
 net     | check_worker_is_up            | 
 net     | _await_response               | request_id bigint
 net     | _urlencode_string             | string character varying
 net     | _encode_url_with_params_array | url text, params_array text[]
 net     | worker_restart                | 
 net     | wait_until_running            | 
 net     | wake                          | 
 net     | http_get                      | url text, params jsonb DEFAULT '{}'::jsonb, headers jsonb DEFAULT '{}'::jsonb, timeout_milliseconds integer DEFAULT 5000
 net     | http_post                     | url text, body jsonb DEFAULT '{}'::jsonb, params jsonb DEFAULT '{}'::jsonb, headers jsonb DEFAULT '{"Content-Type": "application/json"}'::jsonb, timeout_milliseconds integer DEFAULT 5000
 net     | http_delete                   | url text, params jsonb DEFAULT '{}'::jsonb, headers jsonb DEFAULT '{}'::jsonb, timeout_milliseconds integer DEFAULT 5000, body jsonb DEFAULT NULL::jsonb
 net     | _http_collect_response        | request_id bigint, async boolean DEFAULT true
 net     | http_collect_response         | request_id bigint, async boolean DEFAULT true
(12 rows)

#14exit 1

psql "${SUPABASE_DB_URL}" -c "DROP FUNCTION public.send_signup_webhook();"

ERROR:  cannot drop function send_signup_webhook() because other objects depend on it
DETAIL:  trigger signup_webhook_trigger on table signups depends on function send_signup_webhook()
HINT:  Use DROP ... CASCADE to drop the dependent objects too.

#15exit 0

psql "${SUPABASE_DB_URL}" -c "DROP TRIGGER signup_webhook_trigger ON public.signups;"

DROP TRIGGER

#16exit 0

psql "${SUPABASE_DB_URL}" -c "DROP FUNCTION public.send_signup_webhook();"

DROP FUNCTION

#17exit 0

psql "${SUPABASE_DB_URL}" -c "
CREATE OR REPLACE FUNCTION public.send_signup_webhook()
 RETURNS trigger
 LANGUAGE plpgsql
AS \$\$
DECLARE
  request_id bigint;
BEGIN
  SELECT net.http_post(
    url := '${SUPABASE_URL}/functions/v1/hook-recorder',
    body := json_build_object('email', NEW.email, 'plan', NEW.plan),
    headers := json_build_object(
      'Content-Type', 'application/json',
      'Authorization', 'Bearer ${SUPABASE_SERVICE_ROLE_KEY}'
    )
  ) INTO request_id;
  
  -- Optionally collect the response (non-blocking)
  PERFORM net._http_collect_response(request_id, async := true);
  
  RETURN NEW;
END;
\$\$;"

CREATE FUNCTION

#18exit 0

psql "${SUPABASE_DB_URL}" -c "
CREATE TRIGGER signup_webhook_trigger
  AFTER INSERT ON public.signups
  FOR EACH ROW
  EXECUTE FUNCTION public.send_signup_webhook();"

CREATE TRIGGER

#19exit 1

sleep 2 && psql "${SUPABASE_DB_URL}" -c "INSERT INTO public.signups (email, plan) VALUES ('test@example.com', 'premium') RETURNING id, email, plan, created_at;"

ERROR:  function net.http_post(url => unknown, body => json, headers => json) does not exist
LINE 1: SELECT net.http_post(
               ^
HINT:  No function matches the given name and argument types. You might need to add explicit type casts.
QUERY:  SELECT net.http_post(
    url := 'https://<ref>.supabase.co/functions/v1/hook-recorder',
    body := json_build_object('email', NEW.email, 'plan', NEW.plan),
    headers := json_build_object(
      'Content-Type', 'application/json',
      'Authorization', 'Bearer <redacted:SUPABASE_SERVICE_ROLE_KEY>'
    )
  )
CONTEXT:  PL/pgSQL function send_signup_webhook() line 5 at SQL statement

#20exit 0

psql "${SUPABASE_DB_URL}" -c "SELECT n.nspname, p.proname, pg_get_function_arguments(p.oid) FROM pg_proc p JOIN pg_namespace n ON p.pronamespace = n.oid WHERE n.nspname = 'net' AND p.proname = 'http_post';"

 nspname |  proname  |                                                                                 pg_get_function_arguments                                                                                  
---------+-----------+--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
 net     | http_post | url text, body jsonb DEFAULT '{}'::jsonb, params jsonb DEFAULT '{}'::jsonb, headers jsonb DEFAULT '{"Content-Type": "application/json"}'::jsonb, timeout_milliseconds integer DEFAULT 5000
(1 row)

#21exit 0

psql "${SUPABASE_DB_URL}" -c "
DROP TRIGGER signup_webhook_trigger ON public.signups;
DROP FUNCTION public.send_signup_webhook();
"

DROP TRIGGER
DROP FUNCTION

#22exit 0

psql "${SUPABASE_DB_URL}" -c "
CREATE OR REPLACE FUNCTION public.send_signup_webhook()
 RETURNS trigger
 LANGUAGE plpgsql
AS \$\$
DECLARE
  request_id bigint;
BEGIN
  SELECT net.http_post(
    url := '${SUPABASE_URL}/functions/v1/hook-recorder',
    body := json_build_object('email', NEW.email, 'plan', NEW.plan)::jsonb,
    headers := json_build_object(
      'Content-Type', 'application/json',
      'Authorization', 'Bearer ${SUPABASE_SERVICE_ROLE_KEY}'
    )::jsonb
  ) INTO request_id;
  
  -- Non-blocking, let it run in background
  PERFORM net._http_collect_response(request_id, async := true);
  
  RETURN NEW;
END;
\$\$;
"

CREATE FUNCTION

#23exit 0

psql "${SUPABASE_DB_URL}" -c "
CREATE TRIGGER signup_webhook_trigger
  AFTER INSERT ON public.signups
  FOR EACH ROW
  EXECUTE FUNCTION public.send_signup_webhook();"

CREATE TRIGGER

#24exit 0

psql "${SUPABASE_DB_URL}" -c "INSERT INTO public.signups (email, plan) VALUES ('testing@example.com', 'pro') RETURNING id, email, plan;"

 id |        email        | plan 
----+---------------------+------
  3 | testing@example.com | pro
(1 row)

INSERT 0 1

#25exit 0

sleep 3 && psql "${SUPABASE_DB_URL}" -c "SELECT id, received_at, payload->>'email' as email, payload->>'plan' as plan FROM public.webhook_receipts ORDER BY id DESC LIMIT 10;"

 id |          received_at          |        email        | plan 
----+-------------------------------+---------------------+------
  2 | 2026-07-26 02:15:57.268243+00 | testing@example.com | pro
(1 row)

What it said at the end

Great, the insert worked! Now let me wait a couple seconds and then check if the webhook payload was received:

24 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