List all crosspad-core interfaces (I*-prefixed classes in crosspad-core/include/crosspad/).
Part of the Crosspad server.
Free to start. No card required.
AI agents call crosspad_list_interfaces to retrieve information from Crosspad without modifying any data. This is common in research, monitoring, and reporting workflows where the agent needs context before taking action. Because read operations don't change state, they are generally safe to allow without restrictions -- but you may still want rate limits to control API costs.
Even though crosspad_list_interfaces only reads data, uncontrolled read access can leak sensitive information or rack up API costs. An agent caught in a retry loop could make thousands of calls per minute. A rate limit gives you a safety net without blocking legitimate use.
Read-only tools are safe to allow by default. No rate limit needed unless you want to control costs.
{
"version": "1",
"default": "deny",
"tools": {
"crosspad_list_interfaces": {}
}
}See the full Crosspad policy for all 28 tools.
These attack patterns abuse exactly the kind of access crosspad_list_interfaces gives an agent. Each links to the full case and the policy that stops it:
Other read tools across the catalogue. The same approach applies to each: allow, with a rate cap to control cost.
List all crosspad-core interfaces (I*-prefixed classes in crosspad-core/include/crosspad/).. It is categorised as a Read tool in the Crosspad MCP Server, which means it retrieves data without modifying state.
Register the Crosspad MCP server in PolicyLayer and add a rule for crosspad_list_interfaces: 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 Crosspad. Nothing to install.
crosspad_list_interfaces 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 crosspad_list_interfaces 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 crosspad_list_interfaces. 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.
crosspad_list_interfaces is provided by the Crosspad MCP server (crosspad-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 28 Crosspad tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
4,600+ MCP servers and 31,000+ tools scanned and risk-classified.