Discover available corporations and sites for the authenticated user
AI agents call discover_environment to retrieve information from Fastly NGWAF MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries and returns information about corporations and sites accessible to the authenticated user. It is a read/list operation with no data modification, execution, or destructive capability.
From the tool's definition 'Discover available corporations and sites for the authenticated user' — purely retrieves/lists available entities with no side effects
Attacks that exploit this kind of access
Discover available corporations and sites for the authenticated user. It is categorised as a Read tool in the Fastly NGWAF MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Fastly NGWAF MCP Server MCP server in PolicyLayer and add a rule for discover_environment: 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 Fastly NGWAF MCP Server. Nothing to install.
discover_environment 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 discover_environment 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 discover_environment. 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.
discover_environment is provided by the Fastly NGWAF MCP Server MCP server (purpleax/fastlymcp). 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.
Teams ship this data inside their own products. See what a licence covers →