update_contact

Update an existing contact's fields by UID. Uses CardDAV ETag-based optimistic concurrency. Only provided fields are changed.

SERVERAIquila — Nextcloud MCP Server SOURCEelgorro/aiquila

Medium RISK CLASS

Category Write

Parameters 121 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/aiquila-nextcloud-mcp-server/update-contact.md

WHAT IT DOES

What update_contact does on AIquila — Nextcloud MCP Server

AI agents use update_contact to create or update resources in AIquila — Nextcloud MCP Server, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your AIquila — Nextcloud MCP Server environment.

Parameter	Type	Required	Description
`org`	object	—	New organization, or null to remove
`uid`	string	Yes	The UID of the contact to update
`url`	object	—	New website URL, or null to remove
`note`	object	—	New notes, or null to remove
`title`	object	—	New job title, or null to remove
`emails`	array	—	Replace all emails with these
`phones`	array	—	Replace all phone numbers with these
`birthday`	object	—	New birthday (YYYY-MM-DD or YYYYMMDD), or null to remove
`fullName`	string	—	New full display name
`lastName`	object	—	New last name, or null to clear
`addresses`	array	—	Replace all addresses with these
`firstName`	object	—	New first name, or null to clear

Parameters from the server's own tool schema.

RISK

Why update_contact is rated Medium

This tool modifies contact records in a Nextcloud contacts system. The operation is reversible—fields can be updated again or reverted—and does not delete data or execute arbitrary code. It falls squarely into the Write category (modifies data reversibly).

From the tool's definition Tool name 'update_contact' and description 'Update an existing contact's fields' indicate modification of existing data. The phrase 'Only provided fields are changed' confirms reversible, targeted updates without deletion.

Risk signalsAccepts URL/endpoint input (url) · High parameter count (24 properties)

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs update_contact safely

PolicyLayer is an MCP gateway: it sits between your AI agents and AIquila — Nextcloud MCP Server, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For update_contact, this is the rule to start with:

update_contact Rate-limited

update_contact 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.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "update_contact": {
      "limits": [
        {
          "counter": "update_contact_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect AIquila — Nextcloud MCP Server, apply this rule, and every update_contact call is checked against it from then on.

FAQ

Questions about update_contact

What does the update_contact tool do? +

Update an existing contact's fields by UID. Uses CardDAV ETag-based optimistic concurrency. Only provided fields are changed. It is categorised as a Write tool in the AIquila — Nextcloud MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

What parameters does update_contact accept? +

update_contact accepts 12 parameters: org, uid, url, note, title, emails, phones, birthday, fullName, lastName, addresses, firstName. Required: uid. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on update_contact? +

Register the AIquila — Nextcloud MCP Server MCP server in PolicyLayer and add a rule for update_contact: 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 AIquila — Nextcloud MCP Server. Nothing to install.

What risk level is update_contact? +

update_contact is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit update_contact? +

Yes. Add a rate_limit block to the update_contact 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.

How do I block update_contact completely? +

Set action: deny in the PolicyLayer policy for update_contact. 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.

What MCP server provides update_contact? +

update_contact is provided by the AIquila — Nextcloud MCP Server MCP server (elgorro/aiquila). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

KEEP EXPLORING

More on AIquila — Nextcloud MCP Server, and thousands of servers like it.

This server

All 301 AIquila — Nextcloud MCP Server tools →

Across the catalogue

aroflo_create_or_update_record on AroFlo MCP →team_manager_update_budget on Team Manager MCP → The MCP Attack Database →

Guides

Govern customer-ops agents →Argument validation →Scoped token →