List library URLs that have been installed to this session (via library_install or the browser library dialog).
AI agents call library_list_installed to retrieve information from Whiteboard without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs a retrieval operation ('list') on installed library metadata. It queries state without creating, modifying, deleting, executing code, or causing any irreversible changes. The output is informational only, making it a Read category tool with low severity since listing configuration data poses minimal risk even if misused by an AI agent.
From the tool's definition Tool name 'library_list_installed' and description 'List library URLs that have been installed' indicate a query operation that retrieves and returns existing data about installed libraries with no modification or side effects.
Attacks that exploit this kind of access
List library URLs that have been installed to this session (via library_install or the browser library dialog). It is categorised as a Read tool in the Whiteboard MCP Server, which means it retrieves data without modifying state.
Register the Whiteboard MCP server in PolicyLayer and add a rule for library_list_installed: 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 Whiteboard. Nothing to install.
library_list_installed 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 library_list_installed 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 library_list_installed. 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.
library_list_installed is provided by the Whiteboard MCP server (kamiazya/whiteboard). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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