AI agents use bbs_keepalive to create or update resources in Mcp Bbs — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Mcp Bbs environment.
This tool creates or modifies configuration settings for the keepalive mechanism (a reversible change to connection parameters), fitting the Write category. The severity is low because misconfiguration only affects connection stability, not data integrity or external systems.
From the tool's definition Tool configures keepalive interval, which modifies connection settings. The description states "Configure keepalive interval" indicating a state-changing operation on the BBS connection parameters.
Attacks that exploit this kind of access
Configure keepalive interval in seconds (<=0 disables). It is categorised as a Write tool in the Mcp Bbs MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Mcp Bbs MCP server in PolicyLayer and add a rule for bbs_keepalive: 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 Mcp Bbs. Nothing to install.
bbs_keepalive is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the bbs_keepalive 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 bbs_keepalive. 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.
bbs_keepalive is provided by the Mcp Bbs MCP server (livingstaccato/mcp-bbs). 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 →