compare_tools
Compare up to 5 ecosystem tools side-by-side (capabilities, trust dimensions, usage).
This record as markdown: /tools/404-directory/compare-tools.md
What compare_tools does on 404 Directory
AI agents call compare_tools to retrieve information from 404 Directory without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why compare_tools is rated Low
Retrieves and displays comparative metadata about tools; no modification or execution occurs.
From the tool's definition Compare tools side-by-side capabilities, trust dimensions, usage.
Attacks that exploit this kind of access
The rule that runs compare_tools safely
PolicyLayer is an MCP gateway: it sits between your AI agents and 404 Directory, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For compare_tools, this is the rule to start with:
compare_tools is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect 404 Directory, apply this rule, and every compare_tools call is checked against it from then on.
Questions about compare_tools
Compare up to 5 ecosystem tools side-by-side (capabilities, trust dimensions, usage). It is categorised as a Read tool in the 404 Directory MCP Server, which means it retrieves data without modifying state.
Register the 404 Directory MCP server in PolicyLayer and add a rule for compare_tools: 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 404 Directory. Nothing to install.
compare_tools 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 compare_tools 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 compare_tools. 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.
compare_tools is provided by the 404 Directory MCP server (MM-sheng/404-directory). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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