list_address_books
List all address books available to the current user, including their display names and metadata.
This record as markdown: /tools/aiquila-nextcloud-mcp-server/list-address-books.md
What list_address_books does on AIquila — Nextcloud MCP Server
AI agents call list_address_books to retrieve information from AIquila — Nextcloud MCP Server without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why list_address_books is rated Low
The tool performs a listing/querying operation on address book metadata. It has no side effects—it does not create, modify, delete, execute code, or commit financial obligations. The blast radius of misuse is minimal since it only exposes information the current user already has access to within their Nextcloud account.
From the tool's definition Tool name 'list_address_books' and description 'List all address books available to the current user, including their display names and metadata' indicate a read-only query operation that retrieves contact management data without modification.
Attacks that exploit this kind of access
The rule that runs list_address_books 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 list_address_books, this is the rule to start with:
list_address_books is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect AIquila — Nextcloud MCP Server, apply this rule, and every list_address_books call is checked against it from then on.
Questions about list_address_books
List all address books available to the current user, including their display names and metadata. It is categorised as a Read tool in the AIquila — Nextcloud MCP Server MCP Server, which means it retrieves data without modifying state.
Register the AIquila — Nextcloud MCP Server MCP server in PolicyLayer and add a rule for list_address_books: 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.
list_address_books is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the list_address_books 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 list_address_books. 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.
list_address_books 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.
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