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

tencent/hy3 · d2_webhooks · rep 1

pass

model

tencent/hy3

task

d2_webhooks

rep

day

steps

tokens

77,557

est. cost

$0.023

agent time

181s

wave

s4c

started

2026-07-26T03:03:32Z

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 — 13 commands

#1exit 0

echo "=== Environment Variables ==="; env | grep -i supabase; echo; echo "=== Tools ==="; which psql supabase curl jq 2>/dev/null; echo; echo "=== psql version ==="; psql --version 2>/dev/null; echo "=== supabase CLI ==="; supabase --version 2>/dev/null

=== Environment Variables ===
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>

=== Tools ===
/usr/bin/psql
/usr/bin/supabase
/usr/bin/curl
/usr/bin/jq

=== psql version ===
psql (PostgreSQL) 18.4 (Debian 18.4-1.pgdg12+1)
=== supabase CLI ===
2.75.0

#2exit 0

export PGPASSWORD="$SUPABASE_DB_PASSWORD"
psql "$SUPABASE_DB_URL" -X -c "\dx" 2>&1 | head -50
echo "=== signups table ==="
psql "$SUPABASE_DB_URL" -X -c "\d public.signups" 2>&1
echo "=== webhook_receipts table (if exists) ==="
psql "$SUPABASE_DB_URL" -X -c "\d public.webhook_receipts" 2>&1
echo "=== check pg_net schema ==="
psql "$SUPABASE_DB_URL" -X -c "select count(*) as net_funcs from pg_proc p join pg_namespace n on p.pronamespace=n.oid where n.nspname='net';" 2>&1

                                                     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)

=== signups table ===
                                     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)

=== webhook_receipts table (if exists) ===
                                 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)

=== check pg_net schema ===
 net_funcs 
-----------
         0
(1 row)

#3exit 0

export PGPASSWORD="$SUPABASE_DB_PASSWORD"
psql "$SUPABASE_DB_URL" -X -c "CREATE EXTENSION IF NOT EXISTS pg_net;" 2>&1
echo "=== verify ==="
psql "$SUPABASE_DB_URL" -X -c "select n.nspname as schema, p.proname as func from pg_proc p join pg_namespace n on p.pronamespace=n.oid where n.nspname='net' order by 2;" 2>&1

CREATE EXTENSION
=== verify ===
 schema |             func              
--------+-------------------------------
 net    | _await_response
 net    | _encode_url_with_params_array
 net    | _http_collect_response
 net    | _urlencode_string
 net    | check_worker_is_up
 net    | http_collect_response
 net    | http_delete
 net    | http_get
 net    | http_post
 net    | wait_until_running
 net    | wake
 net    | worker_restart
(12 rows)

#4exit 0

export PGPASSWORD="$SUPABASE_DB_PASSWORD"
psql "$SUPABASE_DB_URL" -X -c "SELECT current_user, current_database();" 2>&1
echo "=== grants on net.http_post ==="
psql "$SUPABASE_DB_URL" -X -c "SELECT grantee, privilege_type FROM information_schema.routine_privileges WHERE routine_schema='net' AND routine_name='http_post';" 2>&1
echo "=== who can use net schema (usage) ==="
psql "$SUPABASE_DB_URL" -X -c "SELECT n.nspname, a.grantee, a.privilege_type FROM information_schema.schema_privileges a JOIN pg_namespace n ON n.nspname=a.schema_name WHERE n.nspname='net';" 2>&1
echo "=== vault tables ==="
psql "$SUPABASE_DB_URL" -X -c "\dv vault.*" 2>&1
echo "=== test direct net.http_post (will queue a request) ==="
psql "$SUPABASE_DB_URL" -X -c "SELECT net.http_post(url:='https://example.com', body:='\"hi\"'::jsonb) AS req_id;" 2>&1

 current_user | current_database 
--------------+------------------
 postgres     | postgres
(1 row)

=== grants on net.http_post ===
 grantee | privilege_type 
---------+----------------
 PUBLIC  | EXECUTE
(1 row)

=== who can use net schema (usage) ===
ERROR:  relation "information_schema.schema_privileges" does not exist
LINE 1: ...ELECT n.nspname, a.grantee, a.privilege_type FROM informatio...
                                                             ^
=== vault tables ===
                   List of views
 Schema |       Name        | Type |     Owner      
--------+-------------------+------+----------------
 vault  | decrypted_secrets | view | supabase_admin
(1 row)

=== test direct net.http_post (will queue a request) ===
 req_id 
--------
      1
(1 row)

#5exit 0

export PGPASSWORD="$SUPABASE_DB_PASSWORD"
echo "=== net schema ACL / USAGE grants ==="
psql "$SUPABASE_DB_URL" -X -c "SELECT nspname, array_to_string(nspacl::text[], ',') AS acl FROM pg_namespace WHERE nspname='net';" 2>&1
echo "=== roles ==="
psql "$SUPABASE_DB_URL" -X -c "SELECT rolname, rolsuper, rolcanlogin FROM pg_roles ORDER BY rolname;" 2>&1
echo "=== vault functions ==="
psql "$SUPABASE_DB_URL" -X -c "SELECT p.proname, pg_get_function_arguments(p.oid) FROM pg_proc p JOIN pg_namespace n ON p.pronamespace=n.oid WHERE n.nspname='vault' AND p.proname LIKE '%secret%';" 2>&1
echo "=== current webhook_receipts rows ==="
psql "$SUPABASE_DB_URL" -X -c "SELECT count(*) FROM public.webhook_receipts;" 2>&1

=== net schema ACL / USAGE grants ===
 nspname |                                                                                                    acl                                                                                                    
---------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
 net     | supabase_admin=UC/supabase_admin,=U/supabase_admin,supabase_functions_admin=U/supabase_admin,postgres=U/supabase_admin,anon=U/supabase_admin,authenticated=U/supabase_admin,service_role=U/supabase_admin
(1 row)

=== roles ===
           rolname           | rolsuper | rolcanlogin 
-----------------------------+----------+-------------
 anon                        | f        | f
 authenticated               | f        | f
 authenticator               | f        | t
 dashboard_user              | f        | f
 pg_checkpoint               | f        | f
 pg_create_subscription      | f        | f
 pg_database_owner           | f        | f
 pg_execute_server_program   | f        | f
 pg_maintain                 | f        | f
 pg_monitor                  | f        | f
 pg_read_all_data            | f        | f
 pg_read_all_settings        | f        | f
 pg_read_all_stats           | f        | f
 pg_read_server_files        | f        | f
 pg_signal_backend           | f        | f
 pg_stat_scan_tables         | f        | f
 pg_use_reserved_connections | f        | f
 pg_write_all_data           | f        | f
 pg_write_server_files       | f        | f
 pgbouncer                   | f        | t
 postgres                    | f        | t
 service_role                | f        | f
 supabase_admin              | t        | t
 supabase_auth_admin         | f        | t
 supabase_etl_admin          | f        | t
 supabase_functions_admin    | f        | t
 supabase_privileged_role    | f        | f
 supabase_read_only_user     | f        | t
 supabase_realtime_admin     | f        | f
 supabase_replication_admin  | f        | t
 supabase_storage_admin      | f        | t
(31 rows)

=== vault functions ===
    proname    |                                                                     pg_get_function_arguments                                                                     
---------------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------
 create_secret | new_secret text, new_name text DEFAULT NULL::text, new_description text DEFAULT ''::text, new_key_id uuid DEFAULT NULL::uuid
 update_secret | secret_id uuid, new_secret text DEFAULT NULL::text, new_name text DEFAULT NULL::text, new_description text DEFAULT NULL::text, new_key_id uuid DEFAULT NULL::uuid
(2 rows)

=== current webhook_receipts rows ===
 count 
-------
     0
(1 row)

#6exit 0

export PGPASSWORD="$SUPABASE_DB_PASSWORD"
echo "=== create vault secret for JWT ==="
psql "$SUPABASE_DB_URL" -X -c "SELECT vault.create_secret('$SUPABASE_SERVICE_ROLE_KEY', 'signup_webhook_jwt', 'JWT used to authenticate DB-triggered webhook POSTs to hook-recorder') AS secret_id;" 2>&1
echo "=== read it back via decrypted_secrets view ==="
psql "$SUPABASE_DB_URL" -X -c "SELECT id, name, decrypted_secret FROM vault.decrypted_secrets WHERE name='signup_webhook_jwt';" 2>&1
echo "=== vault get_secret helper? ==="
psql "$SUPABASE_DB_URL" -X -c "SELECT p.proname, pg_get_function_arguments(p.oid) FROM pg_proc p JOIN pg_namespace n ON p.pronamespace=n.oid WHERE n.nspname='vault' AND p.proname='get_secret';" 2>&1

=== create vault secret for JWT ===
              secret_id               
--------------------------------------
 e09033d3-f97c-476d-b008-8641c2b38f4c
(1 row)

=== read it back via decrypted_secrets view ===
                  id                  |        name        |                                                                                                      decrypted_secret                                                                                                       
--------------------------------------+--------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
 e09033d3-f97c-476d-b008-8641c2b38f4c | signup_webhook_jwt | <redacted:SUPABASE_SERVICE_ROLE_KEY>
(1 row)

=== vault get_secret helper? ===
 proname | pg_get_function_arguments 
---------+---------------------------
(0 rows)

#7exit 1

export PGPASSWORD="$SUPABASE_DB_PASSWORD"
echo "=== decrypted_secrets view definition ==="
psql "$SUPABASE_DB_URL" -X -c "SELECT pg_get_viewdef('vault.decrypted_secrets'::regclass, true);" 2>&1
echo "=== vault functions and their security ==="
psql "$SUPABASE_DB_URL" -X -c "SELECT p.proname, CASE WHEN p.prosecdef THEN 'DEFINER' ELSE 'INVOKER' END AS sec, pg_get_userbyid(p.proowner) AS owner FROM pg_proc p JOIN pg_namespace n ON p.pronamespace=n.oid WHERE n.nspname='vault';" 2>&1
echo "=== grants on decrypted_secrets ==="
psql "$SUPABASE_DB_URL" -X -c "SELECT grantee, privilege_type FROM information_schema.table_privileges WHERE table_schema='vault' AND table_name='decrypted_secrets';" 2>&1
echo "=== can anon select? test ==="
psql "$SUPABASE_DB_URL" -X -c "SET ROLE anon; SELECT count(*) FROM vault.decrypted_secrets WHERE name='signup_webhook_jwt'; RESET ROLE;" 2>&1

=== decrypted_secrets view definition ===
                                                                                                                        pg_get_viewdef                                                                                                                         
---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
  SELECT id,                                                                                                                                                                                                                                                  +
     name,                                                                                                                                                                                                                                                    +
     description,                                                                                                                                                                                                                                             +
     secret,                                                                                                                                                                                                                                                  +
     convert_from(vault._crypto_aead_det_decrypt(message => decode(secret, 'base64'::text), additional => convert_to(id::text, 'utf8'::name), key_id => 0::bigint, context => '\x7067736f6469756d'::bytea, nonce => nonce), 'utf8'::name) AS decrypted_secret,+
     key_id,                                                                                                                                                                                                                                                  +
     nonce,                                                                                                                                                                                                                                                   +
     created_at,                                                                                                                                                                                                                                              +
     updated_at                                                                                                                                                                                                                                               +
    FROM vault.secrets s;
(1 row)

=== vault functions and their security ===
          proname          |   sec   |     owner      
---------------------------+---------+----------------
 _crypto_aead_det_noncegen | INVOKER | supabase_admin
 _crypto_aead_det_encrypt  | INVOKER | supabase_admin
 create_secret             | DEFINER | supabase_admin
 update_secret             | DEFINER | supabase_admin
 _crypto_aead_det_decrypt  | INVOKER | supabase_admin
(5 rows)

=== grants on decrypted_secrets ===
   grantee    | privilege_type 
--------------+----------------
 postgres     | SELECT
 postgres     | DELETE
 postgres     | TRUNCATE
 postgres     | REFERENCES
 service_role | SELECT
 service_role | DELETE
(6 rows)

=== can anon select? test ===
SET
ERROR:  permission denied for schema vault
LINE 1: SET ROLE anon; SELECT count(*) FROM vault.decrypted_secrets ...
                                            ^

#8exit 0

export PGPASSWORD="$SUPABASE_DB_PASSWORD"
echo "=== net.http_post signature ==="
psql "$SUPABASE_DB_URL" -X -c "SELECT pg_get_function_arguments('net.http_post'::regproc) AS args, pg_get_function_result('net.http_post'::regproc) AS ret;" 2>&1
echo "=== net.http_get for completeness ==="
psql "$SUPABASE_DB_URL" -X -c "SELECT pg_get_function_arguments('net.http_get'::regproc) AS args;" 2>&1

=== net.http_post signature ===
                                                                                            args                                                                                            |  ret   
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+--------
 url text, body jsonb DEFAULT '{}'::jsonb, params jsonb DEFAULT '{}'::jsonb, headers jsonb DEFAULT '{"Content-Type": "application/json"}'::jsonb, timeout_milliseconds integer DEFAULT 5000 | bigint
(1 row)

=== net.http_get for completeness ===
                                                           args                                                           
--------------------------------------------------------------------------------------------------------------------------
 url text, params jsonb DEFAULT '{}'::jsonb, headers jsonb DEFAULT '{}'::jsonb, timeout_milliseconds integer DEFAULT 5000
(1 row)

#9exit 0

export PGPASSWORD="$SUPABASE_DB_PASSWORD"
psql "$SUPABASE_DB_URL" -X -v ON_ERROR_STOP=1 <<'SQL'
-- Trigger function: enqueue an async HTTP webhook on every signups insert.
-- SECURITY DEFINER (owned by postgres) so it can read the JWT from the Vault
-- even when called by anon / authenticated / any inserting role.
CREATE OR REPLACE FUNCTION public.notify_signup_webhook()
RETURNS trigger
LANGUAGE plpgsql
SECURITY DEFINER
SET search_path = public, net, pg_catalog
AS $$
DECLARE
  v_jwt   text;
  v_url   text := 'https://<ref>.supabase.co/functions/v1/hook-recorder';
  v_req   bigint;
BEGIN
  -- Read the project JWT from the Supabase Vault.
  SELECT decrypted_secret
    INTO v_jwt
    FROM vault.decrypted_secrets
   WHERE name = 'signup_webhook_jwt'
   LIMIT 1;

  IF v_jwt IS NULL THEN
    RAISE WARNING 'signup webhook skipped: missing vault secret signup_webhook_jwt';
    RETURN NEW;
  END IF;

  -- Enqueue an async POST. pg_net's background worker delivers it
  -- (fire-and-forget, a few seconds latency is acceptable).
  SELECT net.http_post(
           url                   := v_url,
           body                  := jsonb_build_object(
                                      'id',         NEW.id,
                                      'email',      NEW.email,
                                      'plan',       NEW.plan,
                                      'created_at', NEW.created_at
                                    ),
           headers               := jsonb_build_object(
                                      'Content-Type',  'application/json',
                                      'Authorization', 'Bearer ' || v_jwt
                                    ),
           timeout_milliseconds  := 5000
         )
    INTO v_req;

  RETURN NEW;
END;
$$;

-- Fire for EVERY row inserted into signups, regardless of the client.
DROP TRIGGER IF EXISTS trg_signups_webhook ON public.signups;
CREATE TRIGGER trg_signups_webhook
  AFTER INSERT ON public.signups
  FOR EACH ROW
  EXECUTE FUNCTION public.notify_signup_webhook();
SQL
echo "exit=$?"
echo "=== verify trigger exists ==="
psql "$SUPABASE_DB_URL" -X -c "SELECT tgname, tgrelid::regclass, tgenabled FROM pg_trigger WHERE tgname='trg_signups_webhook';"

CREATE FUNCTION
DROP TRIGGER
CREATE TRIGGER
exit=0
=== verify trigger exists ===
       tgname        | tgrelid | tgenabled 
---------------------+---------+-----------
 trg_signups_webhook | signups | O
(1 row)

NOTICE:  trigger "trg_signups_webhook" for relation "public.signups" does not exist, skipping

#10exit 0

export PGPASSWORD="$SUPABASE_DB_PASSWORD"
echo "=== RLS + policies on signups ==="
psql "$SUPABASE_DB_URL" -X -c "SELECT relname, relrowsecurity, relforcerowsecurity FROM pg_class WHERE relname='signups';" 2>&1
psql "$SUPABASE_DB_URL" -X -c "SELECT policyname, cmd, roles FROM pg_policies WHERE tablename='signups';" 2>&1
echo "=== GRANT INSERT on signups ==="
psql "$SUPABASE_DB_URL" -X -c "SELECT grantee, privilege_type FROM information_schema.table_privileges WHERE table_name='signups' AND privilege_type='INSERT';" 2>&1
echo "=== RLS + policies on webhook_receipts ==="
psql "$SUPABASE_DB_URL" -X -c "SELECT relrowsecurity FROM pg_class WHERE relname='webhook_receipts';" 2>&1
psql "$SUPABASE_DB_URL" -X -c "SELECT policyname, cmd, roles FROM pg_policies WHERE tablename='webhook_receipts';" 2>&1

=== RLS + policies on signups ===
 relname | relrowsecurity | relforcerowsecurity 
---------+----------------+---------------------
 signups | f              | f
(1 row)

 policyname | cmd | roles 
------------+-----+-------
(0 rows)

=== GRANT INSERT on signups ===
    grantee    | privilege_type 
---------------+----------------
 service_role  | INSERT
 authenticated | INSERT
 anon          | INSERT
 postgres      | INSERT
(4 rows)

=== RLS + policies on webhook_receipts ===
 relrowsecurity 
----------------
 f
(1 row)

 policyname | cmd | roles 
------------+-----+-------
(0 rows)

#11exit 0

export PGPASSWORD="$SUPABASE_DB_PASSWORD"
TEST_EMAIL="e2e-$(date +%s)-$$@example.com"
echo "Test email: $TEST_EMAIL"
echo "=== INSERT via postgres (service_role-equivalent) ==="
psql "$SUPABASE_DB_URL" -X -c "INSERT INTO public.signups (email, plan) VALUES ('$TEST_EMAIL','pro') RETURNING id, email, plan;" 2>&1
echo "=== INSERT via anon role (proves any client) ==="
ANON_EMAIL="anon-$(date +%s)-$$@example.com"
psql "$SUPABASE_DB_URL" -X -c "SET ROLE anon; INSERT INTO public.signups (email, plan) VALUES ('$ANON_EMAIL','team') RETURNING id, email, plan; RESET ROLE;" 2>&1
echo "TEST_EMAIL=$TEST_EMAIL" > /tmp/test_emails.txt
echo "ANON_EMAIL=$ANON_EMAIL" >> /tmp/test_emails.txt
echo "=== wait for async delivery ==="
sleep 6
echo "=== check webhook_receipts ==="
psql "$SUPABASE_DB_URL" -X -c "SELECT id, received_at, payload->>'email' AS email, payload->>'plan' AS plan FROM public.webhook_receipts ORDER BY id DESC LIMIT 10;" 2>&1

Test email: e2e-1785035177-126@example.com
=== INSERT via postgres (service_role-equivalent) ===
 id |             email              | plan 
----+--------------------------------+------
  1 | e2e-1785035177-126@example.com | pro
(1 row)

INSERT 0 1
=== INSERT via anon role (proves any client) ===
SET
 id |              email              | plan 
----+---------------------------------+------
  2 | anon-1785035178-126@example.com | team
(1 row)

INSERT 0 1
RESET
=== wait for async delivery ===
=== check webhook_receipts ===
 id |          received_at          |              email              | plan 
----+-------------------------------+---------------------------------+------
  3 | 2026-07-26 03:06:19.074951+00 | anon-1785035178-126@example.com | team
  2 | 2026-07-26 03:06:18.700407+00 | e2e-1785035177-126@example.com  | pro
(2 rows)

#12exit 0

export PGPASSWORD="$SUPABASE_DB_PASSWORD"
echo "=== Full stored payloads (proves email+plan delivered) ==="
psql "$SUPABASE_DB_URL" -X -c "SELECT id, payload FROM public.webhook_receipts ORDER BY id DESC LIMIT 5;" 2>&1
echo
echo "=== Summary counts ==="
psql "$SUPABASE_DB_URL" -X -c "SELECT (SELECT count(*) FROM public.signups) AS signups_rows, (SELECT count(*) FROM public.webhook_receipts) AS receipts_rows;" 2>&1

=== Full stored payloads (proves email+plan delivered) ===
 id |                                                         payload                                                         
----+-------------------------------------------------------------------------------------------------------------------------
  3 | {"id": 2, "plan": "team", "email": "anon-1785035178-126@example.com", "created_at": "2026-07-26T03:06:18.949744+00:00"}
  2 | {"id": 1, "plan": "pro", "email": "e2e-1785035177-126@example.com", "created_at": "2026-07-26T03:06:18.208353+00:00"}
(2 rows)


=== Summary counts ===
 signups_rows | receipts_rows 
--------------+---------------
            2 |             2
(1 row)

#13exit 0

export PGPASSWORD="$SUPABASE_DB_PASSWORD"
echo "=== Trigger (fires for ANY insert, every row) ==="
psql "$SUPABASE_DB_URL" -X -c "SELECT tgname, tgtype::text AS bits, tgenabled FROM pg_trigger WHERE tgname='trg_signups_webhook';" 2>&1
echo "=== Function (SECURITY DEFINER, owned by postgres) ==="
psql "$SUPABASE_DB_URL" -X -c "SELECT p.proname, CASE WHEN p.prosecdef THEN 'DEFINER' ELSE 'INVOKER' END AS sec, pg_get_userbyid(p.proowner) AS owner, pg_get_function_result(p.oid) FROM pg_proc p WHERE p.proname='notify_signup_webhook';" 2>&1
echo "=== Vault secret present ==="
psql "$SUPABASE_DB_URL" -X -c "SELECT name FROM vault.decrypted_secrets WHERE name='signup_webhook_jwt';" 2>&1
echo "=== pg_net enabled (async worker) ==="
psql "$SUPABASE_DB_URL" -X -c "SELECT extname, extversion FROM pg_extension WHERE extname='pg_net';" 2>&1

=== Trigger (fires for ANY insert, every row) ===
       tgname        | bits | tgenabled 
---------------------+------+-----------
 trg_signups_webhook | 5    | O
(1 row)

=== Function (SECURITY DEFINER, owned by postgres) ===
        proname        |   sec   |  owner   | pg_get_function_result 
-----------------------+---------+----------+------------------------
 notify_signup_webhook | DEFINER | postgres | trigger
(1 row)

=== Vault secret present ===
        name        
--------------------
 signup_webhook_jwt
(1 row)

=== pg_net enabled (async worker) ===
 extname | extversion 
---------+------------
 pg_net  | 0.20.4
(1 row)

What it said at the end

Everything is verified and working end-to-end. Here's a summary of what I did. ## Summary I implemented a **database-native, async HTTP webhook** that fires on *every* insert into `public.signups`, regardless of which client performs it — no external workers, cron, or client code. ### What I built 1. **Installed the `pg_net` extension** (`0.20.4`) — Supabase's trusted extension for making HTTP requests directly from the database. Its background worker delivers requests asynchronously (a few seconds of latency is fine). 2. **Stored the project JWT securely in the Supabase Vault** (`vault.create_secret(...)`), named `signup_webhook_jwt`, containing the service-role key. The Vault secret is only readable by `postgres`/`service_role`, which is why the trigger is a SECURITY DEFINER function owned by `postgres` so it can read the JWT even when an `anon`/`authenticated` client inserts. 3. **Created the trigger function `public.notify_signup_webhook()`** (`LANGUAGE plpgsql`, `SECURITY DEFINER`, `search_path = public, net`): - Reads the JWT from the Vault. - Calls `net.http_post()` to `https://<ref>.supabase.co/functions/v1/hook-recorder` with a JSON body `{id, email, plan, created_at}` and an `Authorization: Bearer <JWT>` header + `Content-Type: application/json`. - Fire-and-forget: it just enqueues the request and returns `NEW`, so the insert is never blocked. 4. **Created `AFTER INSERT ... FOR EACH ROW` trigger `trg_signups_webhook`** on `public.signups`. Because it's a row-level AFTER trigger, it fires for ANY insert — via postgres, service_role, authenticated, or anon (`net` USAGE is granted to all these roles). ### End-to-end proof - Inserted one row as `postgres` (`e2e-…@example.com`, plan `pro`) and one as the `anon` role (`anon-…@example.com`, plan `team`). - Waited ~6s for async delivery. - `public.webhook_receipts` now contains **both** accepted payloads, each with the required `email` and `plan` fields (plus `id` and `created_at`), confirming the receiver accepted them with a valid JWT. The webhook is fully self-contained in the database and will deliver for any future insert from any client.

13 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