Compare two AI artifacts side-by-side. Shows capabilities, pricing, rank, and graph signals for each. Uses search-based lookup (best-effort name matching). Use this when deciding between alternatives.
AI agents call compare to retrieve information from Unfragile without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and displays comparative information about AI artifacts from an existing knowledge graph. It has no side effects—it queries data and presents it to the user without creating, modifying, deleting, or executing anything. The blast radius of misuse is minimal; an agent could only retrieve potentially sensitive comparative data but cannot harm systems or commit to actions.
From the tool's definition Tool performs 'side-by-side' comparison and 'shows' capabilities, pricing, rank, and graph signals. Description explicitly states 'search-based lookup' which is a retrieval operation with no modification, deletion, or execution of external systems.
Attacks that exploit this kind of access
Compare two AI artifacts side-by-side. Shows capabilities, pricing, rank, and graph signals for each. Uses search-based lookup (best-effort name matching). Use this when deciding between alternatives. It is categorised as a Read tool in the Unfragile MCP Server, which means it retrieves data without modifying state.
Register the Unfragile MCP server in PolicyLayer and add a rule for compare: 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 Unfragile. Nothing to install.
compare 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 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. 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 is provided by the Unfragile MCP server (savirinc/unfragile-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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