Test the status of HeaderHawk
AI agents call say_hello to retrieve information from HeaderHawk without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This is a diagnostic ping/status endpoint that verifies server availability. It retrieves no meaningful data, creates no changes, executes no external operations, and has no destructive or financial implications. It is a standard Read category tool with minimal blast radius if misused.
From the tool's definition Tool name 'say_hello' and description 'Test the status of HeaderHawk' indicate a simple health check or status query with no data retrieval, modification, execution, or side effects.
Attacks that exploit this kind of access
Test the status of HeaderHawk. It is categorised as a Read tool in the HeaderHawk MCP Server, which means it retrieves data without modifying state.
Register the HeaderHawk MCP server in PolicyLayer and add a rule for say_hello: 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 HeaderHawk. Nothing to install.
say_hello 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 say_hello 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 say_hello. 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.
say_hello is provided by the HeaderHawk MCP server (nervpeng/headerhawk_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.
Teams ship this data inside their own products. See what a licence covers →