AI agents call search_suitable_guides to retrieve information from Mcp Canon without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The tool appears to search a knowledge base for guides, which is a retrieval operation with no destructive, write, execute, or financial implications. The empty description lowers confidence slightly, but the semantic naming and sibling tool context provide sufficient evidence for Read categorization.
From the tool's definition Tool name 'search_suitable_guides' indicates a search operation. Sibling tools 'read_full_guide' and 'search_best_practices' are clearly Read operations (retrieve knowledge/guides).
Attacks that exploit this kind of access
search_suitable_guides. It is categorised as a Read tool in the Mcp Canon MCP Server, which means it retrieves data without modifying state.
Register the Mcp Canon MCP server in PolicyLayer and add a rule for search_suitable_guides: 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 Canon. Nothing to install.
search_suitable_guides 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_suitable_guides 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_suitable_guides. 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_suitable_guides is provided by the Mcp Canon MCP server (tripcher/canon). 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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