Forbidden

Now I have the cluster details. Let me invoke the RCA skill.

I have the cluster details:

Now let me search Datadog logs for this error.

The error is coming from `Cupix::NotificationService` class, specifically `unsubscribe` and `delete_

The `::` in the class name is problematic for Datadog query parsing. Let me escape it.

The raw search with escaped class names returns empty. Let me try with the URL from the cluster file

Excellent! Now I have key information:

Now let me explore the source code in the tesla repository for `Cupix::NotificationService`.

Now I can see the code clearly. The `unsubscribe` method at line 110 logs `e.response` directly (whi

Now I see the pattern. When a `FacilityPermission` is destroyed:

Now let me look at the notification service endpoint to understand why it returns "Forbidden". Let m

Important finding! The recipe proxy returns `403` with `{"message": "Item not found"}` for `ItemNotF

Now I see that `handleError` is shared from the recipe proxy. When authorization fails (returns `isA

The keyword search doesn't work well here because the facility_key is in a separate log attribute, n

Now I can see the pattern clearly. Successful calls (e.g., `jina.choi@cupix.com`, `sunnie.park@cupix

The errors are all clustered at the same timestamps (10:03:01-11 KST on 2026-05-24). Let me also che

All errors occur at 10:01 KST on 2026-05-23 and 10:03 KST on 2026-05-24. This is a recurring pattern

Now let me find where `FacilityPermission` is destroyed and if there's a scheduled job running at 10

The errors happen at exactly 10:01-10:03 KST (= 01:01-01:03 UTC) which matches a daily pattern. Let

Interesting — the `ProjectPermissionCleanupWorker` uses `delete_all` (line 38) which **bypasses Acti

Now I understand the PubSub mechanism. `FacilityPermission` includes `PubSub::Publisher`, which mean

`FacilityPermission` includes `PubSub::Publisher` (line 7). So when a `FacilityPermission` is destro

Line 175-178: `every '0 1 * * *'` (01:00 UTC everyday = 10:00 KST):

Now I need to find what `facility.unshare(user)` does.

Now I have the full picture:

This confirms it. The cron job `revoke_expired_editor_permissions` runs at 01:00 UTC (10:00 KST) and

Now I have the cluster details. Let me invoke the RCA skill.

Let me search Datadog logs and explore the source code in parallel.

Good, I have Datadog context. The error comes from `Cupix::NotificationService` — specifically `dele

Now I can see the code. The `delete_user_recipe` (line 48-68) and `unsubscribe` (line 95-113) method

The `UserRecipeCleaner` and `SubscriptionCleaner` are event subscribers triggered when `FacilityPerm

No scheduled job in config/schedule.rb for notifications. Let me look at the broader schedule and ch

Found it! Line 175-178 in schedule.rb: **`every '0 1 * * *'` (01:00 UTC daily)** runs `Cupix::Cron::

Now I can see the full chain. The `facility.unshare(user)` call at line 61 triggers the `FacilityPer

Now let me check how the notification-service authenticates the `x-cupix-auth` token. The notificati

Now I have a very clear picture. The authorizer (line 31-33) returns `isAuthorized: false` when the

Now let me look at the `PubSub::Publisher` include to understand the event flow. The `_permission.de

Now I have the full picture. Let me check how the Tesla API `/api/v1/me` handles the token. The noti

Now I have the full authentication flow. The key insight is at line 26: `User.find_by_api_token(raw_

Let me check the verification controller to understand how `/api/v1/me` actually works — whether it

Now I understand the flow. If `$CUPIX_AUTH_METHOD` is `COGNITO` (which is likely the case in product

Now I have the complete picture. Line 45-46 in `verification.rb`:

Line 40: `self.model.expires_at = 100.years.from_now` for `api_token` grant type. So the session nev

Now I have the key pieces. Let me look at one more critical detail — the `SessionFactory` calls `sup

I see — `SessionFactory.new(current_user: self)` (at user.rb:113) sets `current_team` to `opts[:curr

Now the full picture is clear. The notification-service URL comes from AWS SSM. The authorizer calls

`User.find_by_api_token` is Rails' dynamic finder — it simply does `User.find_by(api_token: value)`.

Now let me update the cluster frontmatter (rca_status only, without modifying the body).

Now I have the cluster details. Let me invoke the RCA skill.

Let me search Datadog logs and explore the source code in parallel.

Good findings. The Datadog agent identified `Cupix::NotificationService` as the source. Let me now e

Now let me look at how the `unsubscribe` method logs the error — it logs `e.response` directly (line

Now I see the `PubSub::Publisher` include in FacilityPermission. Let me check how the PubSub publish

Now I have a clear picture. Let me also check the `HttpClient` to understand how it handles the resp

Now let me look at what triggers the mass cleanup. The Datadog logs showed it happened right after a

Now I have a complete picture. Let me also check on the notification-service side to understand why

The notification-service subscription handling is in the cupixworks repo but only as SDK types. Let

Now I understand the full picture. The notification-service uses a Lambda authorizer that validates

I now have all the evidence needed. Let me update todos and write the RCA report.

The file exists already. Let me read it first before overwriting.

The existing RCA report is already comprehensive and well-structured. It was previously written with

The existing RCA report is accurate and comprehensive. It correctly identifies:

The cluster file has `status: "pending"` but no `rca_status` field. Per the instructions, I should N

RCA report written to `./content/docs/incidents/ae62d269-9dba-4c1e-8767-69f09cdb564b/rca.mdx`.

RCA complete. The report is written to `./content/docs/incidents/ae62d269-9dba-4c1e-8767-69f09cdb564