Get all prerequisites data from OnSecurity for a specific round. Prerequisites are requirements that need to be fulfilled before a security assessment can begin.
AI agents call get-prerequisites to retrieve information from OnSecurity MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool only retrieves/queries prerequisite information from OnSecurity; it has no side effects, does not create, modify, or delete data, and does not execute commands or financial operations. It is a straightforward read operation with minimal risk—the worst outcome of misuse would be unauthorized data access or information disclosure.
From the tool's definition Tool description states 'Get all prerequisites data' — the verb 'Get' explicitly indicates data retrieval with no modification, deletion, or execution. The tool retrieves prerequisite requirements data for a specific round.
Attacks that exploit this kind of access
Get all prerequisites data from OnSecurity for a specific round. Prerequisites are requirements that need to be fulfilled before a security assessment can begin. It is categorised as a Read tool in the OnSecurity MCP Server MCP Server, which means it retrieves data without modifying state.
Register the OnSecurity MCP Server MCP server in PolicyLayer and add a rule for get-prerequisites: 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 OnSecurity MCP Server. Nothing to install.
get-prerequisites 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 get-prerequisites 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 get-prerequisites. 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.
get-prerequisites is provided by the OnSecurity MCP Server MCP server (onsecurity/onsecurity-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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