update_portal_user
Change a person's account in a portal: their email address, login, first name, last name or phone. Pass only what the person asked to change; nothing else is touched. The answer says CHANGED (was → now) / UNCHANGED per item. A password is NEVER set here and never asked for in the chat: send_porta...
This record as markdown: /tools/com-quintadb-mcp/update-portal-user.md
What update_portal_user does on QuintaDB
AI agents use update_portal_user to create or update resources in QuintaDB, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your QuintaDB environment.
| Parameter | Type | Required | Description |
|---|---|---|---|
email | string | — | The new email address |
login | string | — | The new login. Changing the email does not change the login. |
phone | string | — | |
app_id | string | Yes | Project ID (from list_projects) |
user_id | string | Yes | The person's id from list_portal_users |
last_name | string | — | |
portal_id | string | Yes | Portal ID (from list_portals or describe_project) |
first_name | string | — |
Parameters from the server's own tool schema.
Why update_portal_user is rated Medium
An AI agent can call update_portal_user faster than any human can review: one bad instruction and it creates or modifies resources in QuintaDB by the hundred, each call as confident as the last.
Attacks that exploit this kind of access
The rule that runs update_portal_user safely
PolicyLayer is an MCP gateway: it sits between your AI agents and QuintaDB, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For update_portal_user, this is the rule to start with:
update_portal_user stays usable, but capped: an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect QuintaDB, apply this rule, and every update_portal_user call is checked against it from then on.
Questions about update_portal_user
Change a person's account in a portal: their email address, login, first name, last name or phone. Pass only what the person asked to change; nothing else is touched. The answer says CHANGED (was → now) / UNCHANGED per item. A password is NEVER set here and never asked for in the chat: send_portal_user_password_letter mails the person a link to set their own. It is categorised as a Write tool in the QuintaDB MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
update_portal_user accepts 8 parameters: email, login, phone, app_id, user_id, last_name, portal_id, first_name. Required: app_id, user_id, portal_id. The full parameter table on this page comes from the server's own tool schema.
Register the QuintaDB MCP server in PolicyLayer and add a rule for update_portal_user: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches QuintaDB. Nothing to install.
update_portal_user is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the update_portal_user rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for update_portal_user. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
update_portal_user is provided by the QuintaDB MCP server (https://quintadb.com/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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