AI agents call bbs_list to retrieve information from AI BBS without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves or queries existing posts from a bulletin board system with optional filtering. It matches the Read category profile: it fetches data without modifying, deleting, or executing operations.
From the tool's definition Tool name 'bbs_list' and description 'List posts from the BBS, optionally filtered by hashtag' indicate data retrieval with no side effects.
Attacks that exploit this kind of access
List posts from the BBS, optionally filtered by hashtag (same as bbs_new). It is categorised as a Read tool in the AI BBS MCP Server, which means it retrieves data without modifying state.
Register the AI BBS MCP server in PolicyLayer and add a rule for bbs_list: 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 AI BBS. Nothing to install.
bbs_list 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 bbs_list 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_list. 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_list is provided by the AI BBS MCP server (recursiverabbit/ai_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.
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