List user notification channels

Outcome

List stored verified/pending address rows for self or platform-authorized target; primary account email and delivery are separate.

These examples prove local handler behavior with real isolated notification SQL and explicitly simulated identity dependencies.

Before you start

• Verify pinned identity and the exact published action. Preference/address storage permits self or platform authority; organization admin alone cannot manage another user. Organization forbid rules require authority over the exact organization.

• Discover the intended user/org independently. These storage handlers do not verify target existence and stored preference lists do not resolve effective delivery. Omitted preference org_id means global wildcard *, while replacement selects organization scope through query.org_id.

• Before replacement capture the complete previous scope, review the full intended rows and inspect the validated plan. Empty rows clears explicit rules and may permit more delivery. Replacement is sequential and can leave partial state.

• Channel verify only sets a stored flag and performs no possession challenge. Retain independent authorized ownership evidence before approving it; fixture addresses are unused and authorize no live verification or outreach.

Discover the target

topolo whoami --json
topolo apps --json
topolo actions get app_topolo_auth.user_notification_channels.list --detail --json

Discover the authorized target user and exact organization. Read user_notification_preferences.list for each scope separately, user_notification_channels.list for stored channel_id values, or organization_notification_policy.list for the managed organization. Copy ids only from the exact selected scope. Effective delivery requires the published resolve action and delivery read-back separately.

Input fields

Effects

• Reads stored address rows only; does not return a synthesized primary account email or deliver a message.

Interpret the response

Returns stored address rows ordered by channel then descending created_at with no pagination. metadata_json is serialized JSON TEXT or null; verified_at and label are nullable.

It does not synthesize the verified primary account email that effective delivery may use. Empty rows do not prove no user or no delivery route. A stored verified flag does not prove address ownership or receipt.

Worked examples

These are complete raw target-handler responses, not CLI/gateway envelopes or live authorization proof. Synthetic users, organizations and unused addresses exist only in isolated fixtures. Discover real intended targets and review effects separately. Save only reviewed input as payload.json; validate and inspect the unchanged plan before an authorized call. --confirm assumes intended approval. Cookie/Bearer identities must consistently select the intended principal. Stored rows, ownership evidence, effective policy and actual delivered messages are separate outcomes. No fixture sends a message or performs an address challenge.

An empty stored address list does not prove no primary account email exists

Input · payload.json:

{
  "userId": "usr_self"
}

CLI:

topolo actions validate app_topolo_auth.user_notification_channels.list --data @payload.json --json
topolo actions plan app_topolo_auth.user_notification_channels.list --data @payload.json --json
topolo actions call app_topolo_auth.user_notification_channels.list --data @payload.json --json

MCP call after validation and plan review:

{
  "tool": "topolo_read_action",
  "arguments": {
    "actionId": "app_topolo_auth.user_notification_channels.list",
    "input": {
      "userId": "usr_self"
    }
  }
}

Captured local handler response · HTTP 200:

{
  "success": true,
  "message": "Notification channels fetched",
  "data": {
    "userId": "usr_self",
    "channels": []
  },
  "timestamp": "2026-10-02T00:00:00.000Z"
}

Stored addresses remain pending until the explicit flag mutation

Input · payload.json:

{
  "userId": "usr_self"
}

CLI:

topolo actions validate app_topolo_auth.user_notification_channels.list --data @payload.json --json
topolo actions plan app_topolo_auth.user_notification_channels.list --data @payload.json --json
topolo actions call app_topolo_auth.user_notification_channels.list --data @payload.json --json

MCP call after validation and plan review:

{
  "tool": "topolo_read_action",
  "arguments": {
    "actionId": "app_topolo_auth.user_notification_channels.list",
    "input": {
      "userId": "usr_self"
    }
  }
}

Captured local handler response · HTTP 200:

{
  "success": true,
  "message": "Notification channels fetched",
  "data": {
    "userId": "usr_self",
    "channels": [
      {
        "channel_id": "nch_DUthNOwIONWASRT_",
        "user_id": "usr_self",
        "channel": "email",
        "address": "fixture-address@example.test",
        "label": "Fixture email",
        "metadata_json": "{\"source\":\"isolated-doc-fixture\"}",
        "verified_at": null,
        "created_at": 1790971419
      }
    ]
  },
  "timestamp": "2026-10-02T00:00:00.000Z"
}

Stored verification flag is not proof of ownership or message delivery

Input · payload.json:

{
  "userId": "usr_self"
}

CLI:

topolo actions validate app_topolo_auth.user_notification_channels.list --data @payload.json --json
topolo actions plan app_topolo_auth.user_notification_channels.list --data @payload.json --json
topolo actions call app_topolo_auth.user_notification_channels.list --data @payload.json --json

MCP call after validation and plan review:

{
  "tool": "topolo_read_action",
  "arguments": {
    "actionId": "app_topolo_auth.user_notification_channels.list",
    "input": {
      "userId": "usr_self"
    }
  }
}

Captured local handler response · HTTP 200:

{
  "success": true,
  "message": "Notification channels fetched",
  "data": {
    "userId": "usr_self",
    "channels": [
      {
        "channel_id": "nch_DUthNOwIONWASRT_",
        "user_id": "usr_self",
        "channel": "email",
        "address": "fixture-address@example.test",
        "label": "Fixture email",
        "metadata_json": "{\"source\":\"isolated-doc-fixture\"}",
        "verified_at": 1790971419,
        "created_at": 1790971419
      }
    ]
  },
  "timestamp": "2026-10-02T00:00:00.000Z"
}

Platform-authorized target list can be empty without target-user existence verification

Input · payload.json:

{
  "userId": "usr_other"
}

CLI:

topolo actions validate app_topolo_auth.user_notification_channels.list --data @payload.json --json
topolo actions plan app_topolo_auth.user_notification_channels.list --data @payload.json --json
topolo actions call app_topolo_auth.user_notification_channels.list --data @payload.json --json

MCP call after validation and plan review:

{
  "tool": "topolo_read_action",
  "arguments": {
    "actionId": "app_topolo_auth.user_notification_channels.list",
    "input": {
      "userId": "usr_other"
    }
  }
}

Captured local handler response · HTTP 200:

{
  "success": true,
  "message": "Notification channels fetched",
  "data": {
    "userId": "usr_other",
    "channels": []
  },
  "timestamp": "2026-10-02T00:00:00.000Z"
}

Verify the result

• Require returned userId and each row user_id to match the intended target. Keep channel_id/address separate and inspect nullable flags/serialized metadata.

• Use effective resolution separately; stored verified_at is not an ownership challenge or delivery receipt.

Errors and recovery

Organization admin alone cannot read another user addresses

Captured local refusal · HTTP 401:

{
  "input": {
    "userId": "usr_other"
  },
  "response": {
    "success": false,
    "error": {
      "message": "Access denied",
      "code": "AUTH_ERROR",
      "details": null,
      "timestamp": "2026-10-02T00:00:00.000Z"
    }
  }
}

Published recovery guidance

• AUTH_ERROR (HTTP 401): Verify pinned identity. If authenticated, respect self/platform user authority or exact organization management denial; organization ownership alone does not authorize another user address/preferences. Do not assume OAuth expiry or change context automatically.

• VALIDATION_ERROR (HTTP 400): Correct the reported fields only. Use unique event/channel pairs and valid channel-specific addresses. Validate and review the exact complete replacement again before approval.

• NOT_FOUND (HTTP 404): Refresh the target user channels list. A row for another user is not authorized by a known channel id; repeated delete is already absent, not a new successful deletion.

• SERVER_ERROR (HTTP 500): Preserve the result and read the exact stored scope before any new write. A replacement may have deleted old rules and inserted only some new ones; review finishing the intended set or restoring the captured set as a new approved replacement.

Recovery boundaries

Read-only stored metadata. Refresh exact scope after separately approved changes; effective resolution and delivery require their own verification.

Discovery and evidence

This record belongs to app_topolo_auth. Fixtures prove actual NotificationPreferencesController and AuthController authority, validation, canonical notification SQL, duplicate/address identity and sequential replacement failure boundaries. Authenticated identities and unused targets/addresses are simulated and second-insert SQL failures injected. No live storage, ownership challenge, notification, deployment or production publication is proved.