Advanced search with filters
AI agents call advanced_search to retrieve information from Follow Plan MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool searches and queries project data (tasks, bugs, features, messages) using filters. It retrieves information without creating, modifying, or deleting any data. The lack of parameters that would enable writes or destructive actions, combined with the descriptive language indicating search/query functionality, places this firmly in the Read category with minimal security risk when misused by an AI agent.
From the tool's definition Tool name 'advanced_search' and description 'Advanced search with filters' indicate data retrieval with no modification or side effects. Consistent with the server's stated 'full-text search capabilities' feature.
Attacks that exploit this kind of access
Advanced search with filters. It is categorised as a Read tool in the Follow Plan MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Follow Plan MCP Server MCP server in PolicyLayer and add a rule for advanced_search: 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 Follow Plan MCP Server. Nothing to install.
advanced_search 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 advanced_search 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 advanced_search. 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.
advanced_search is provided by the Follow Plan MCP Server MCP server (vibeclasses/follow-plan-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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