Ask a question about your bookmarks. Uses AI to find relevant saved tweets and answer based on them.
AI agents call ask_bookmarks to retrieve information from Krill To MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries existing bookmark data to answer questions. It retrieves and searches bookmarks (Read category operations) without creating, modifying, or deleting any data. The AI agent cannot cause irreversible changes, financial impact, or execute external operations. Severity is low because access to a user's own bookmarks poses minimal risk even if misused by an agent.
From the tool's definition Tool description states it 'Ask a question about your bookmarks' and 'find relevant saved tweets and answer based on them' — a retrieval and query operation with no modification or deletion of data.
Attacks that exploit this kind of access
Ask a question about your bookmarks. Uses AI to find relevant saved tweets and answer based on them. It is categorised as a Read tool in the Krill To MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Krill To MCP Server MCP server in PolicyLayer and add a rule for ask_bookmarks: 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 Krill To MCP Server. Nothing to install.
ask_bookmarks 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 ask_bookmarks 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 ask_bookmarks. 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.
ask_bookmarks is provided by the Krill To MCP Server MCP server (krillto/mcp-server). 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.
Teams ship this data inside their own products. See what a licence covers →