AI agents use create_sighting to create or update resources in VulnMCP — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your VulnMCP environment.
An AI agent can call create_sighting faster than any human can review — one bad instruction and it creates or modifies resources in VulnMCP by the hundred, each call as confident as the last.
Documented attack patterns abuse exactly the kind of access create_sighting gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and VulnMCP, and nothing reaches the server without passing your rules. This is the rule we recommend for create_sighting:
{
"version": "1",
"default": "deny",
"tools": {
"create_sighting": {
"limits": [
{
"counter": "create_sighting_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}create_sighting stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.
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create_sighting. It is categorised as a Write tool in the VulnMCP MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Vuln MCP server in PolicyLayer and add a rule for create_sighting: 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 VulnMCP. Nothing to install.
create_sighting is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the create_sighting 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 create_sighting. 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.
create_sighting is provided by the Vuln MCP server (vulnerability-lookup/vulnmcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 16 VulnMCP tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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16 VulnMCP tools catalogued and risk-classified — across an index of 42,500+ MCP servers.