Get the current Browserbase context ID for persistent sessions
AI agents call get_context_id to retrieve information from Twitter 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 the current context identifier used for maintaining browser sessions. It is a pure read operation that queries state without modifying, deleting, or executing code. The context ID is metadata needed for session management, not data that would cause harm if accessed.
From the tool's definition Tool name is 'get_context_id' and description states it 'Get[s] the current Browserbase context ID for persistent sessions' — a retrieval operation with no side effects.
Attacks that exploit this kind of access
Get the current Browserbase context ID for persistent sessions. It is categorised as a Read tool in the Twitter MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Twitter MCP Server MCP server in PolicyLayer and add a rule for get_context_id: 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 MCP Server. Nothing to install.
get_context_id 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 get_context_id 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 get_context_id. 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.
get_context_id is provided by the Twitter MCP Server MCP server (kylejeong2/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.
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