Navigate to the public reputation leaderboard of agents and workers.
AI agents call em_view_leaderboard to retrieve information from Execution Market without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The tool reads and displays public leaderboard information. This is a view/query operation with no side effects, aligning with the 'Read' category. Severity is low because leaderboard data is public and non-sensitive; misuse poses minimal risk.
From the tool's definition Tool name 'em_view_leaderboard' and description 'Navigate to the public reputation leaderboard of agents and workers' indicate retrieval of public data with no modification, creation, deletion, code execution, or financial transaction.
Attacks that exploit this kind of access
Navigate to the public reputation leaderboard of agents and workers. It is categorised as a Read tool in the Execution Market MCP Server, which means it retrieves data without modifying state.
Register the Execution Market MCP server in PolicyLayer and add a rule for em_view_leaderboard: 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 Execution Market. Nothing to install.
em_view_leaderboard 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 em_view_leaderboard 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 em_view_leaderboard. 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.
em_view_leaderboard is provided by the Execution Market MCP server (https://mcp.execution.market/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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