Read your saved/bookmarked tweets on Twitter/X. Requires auth cookies.
AI agents call twitter_bookmarks to retrieve information from Twitter/X MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and displays previously saved tweets from the user's bookmarks. It performs a query operation that does not modify, delete, or execute actions—it only accesses existing data. The severity is low because misuse would result in unauthorized information disclosure rather than system compromise or irreversible data loss. Authentication is required (cookies), limiting exposure.
From the tool's definition Tool description explicitly states 'Read your saved/bookmarked tweets'. The verb 'Read' and the action of retrieving bookmarked content indicates data retrieval with no side effects.
Attacks that exploit this kind of access
Read your saved/bookmarked tweets on Twitter/X. Requires auth cookies. It is categorised as a Read tool in the Twitter/X MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Twitter/X MCP Server MCP server in PolicyLayer and add a rule for twitter_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 Twitter/X MCP Server. Nothing to install.
twitter_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 twitter_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 twitter_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.
twitter_bookmarks is provided by the Twitter/X MCP Server MCP server (miles0sage/twitter-mcp). 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 →