Searches curated Cartesi resources and returns lightweight result cards with MCP URIs and external links, but not full page body text.
AI agents call search_knowledge_resources to retrieve information from Cartesi Knowledge MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs a query operation that retrieves and returns information from curated Cartesi developer documentation without any side effects, data modification, code execution, or destructive capability. The lightweight result format (URIs and links) reinforces that it is a simple information retrieval function.
From the tool's definition Tool description explicitly states it 'Searches curated Cartesi resources and returns lightweight result cards' without full page content, and the server is described as providing 'read-only knowledge access'.
Attacks that exploit this kind of access
Searches curated Cartesi resources and returns lightweight result cards with MCP URIs and external links, but not full page body text. It is categorised as a Read tool in the Cartesi Knowledge MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Cartesi Knowledge MCP Server MCP server in PolicyLayer and add a rule for search_knowledge_resources: 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 Cartesi Knowledge MCP Server. Nothing to install.
search_knowledge_resources 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 search_knowledge_resources 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 search_knowledge_resources. 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.
search_knowledge_resources is provided by the Cartesi Knowledge MCP Server MCP server (mugen-builders/mcp-server). 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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