List bots that should be blocked. If a robots.txt is given, the answer is the set actually Disallowed there; otherwise we return high-risk bots by baseline.
AI agents call list_blocked_bots to retrieve information from Mcp Bot Crawler without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries and returns information about blocked bots without modifying, deleting, or executing any operations. It has no destructive or operational side effects. The act of retrieving a list of bots to block is purely informational and does not itself block anything or alter system state.
From the tool's definition Tool name 'list_blocked_bots' and description 'List bots that should be blocked' indicates a retrieval/query operation. Returns either bots disallowed in robots.txt or a list of high-risk bots—both read-only data structures with no side effects.
Attacks that exploit this kind of access
List bots that should be blocked. If a robots.txt is given, the answer is the set actually Disallowed there; otherwise we return high-risk bots by baseline. It is categorised as a Read tool in the Mcp Bot Crawler MCP Server, which means it retrieves data without modifying state.
Register the Mcp Bot Crawler MCP server in PolicyLayer and add a rule for list_blocked_bots: 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 Bot Crawler. Nothing to install.
list_blocked_bots 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 list_blocked_bots 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 list_blocked_bots. 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.
list_blocked_bots is provided by the Mcp Bot Crawler MCP server (merulocal/hellogrowthcrmwebsite_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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