AI agents use declare_type to create or update resources in Ida Domain — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Ida Domain environment.
Declaring types modifies IDA Pro's internal database by adding or changing type information, which is reversible (types can be redeclared or removed). This is a Write operation rather than Read (no mere querying), Execute (not running code directly), or Destructive (changes can be undone).
From the tool's definition Tool name: 'declare_type'; description: 'Declare types' - indicates creation or modification of type declarations in IDA Pro's analysis database.
Documented attack patterns abuse exactly the kind of access declare_type gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Ida Domain, and nothing reaches the server without passing your rules. This is the rule we recommend for declare_type:
{
"version": "1",
"default": "deny",
"tools": {
"declare_type": {
"limits": [
{
"counter": "declare_type_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}declare_type 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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Declare types. It is categorised as a Write tool in the Ida Domain MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Ida Domain MCP server in PolicyLayer and add a rule for declare_type: 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 Ida Domain. Nothing to install.
declare_type 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 declare_type 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 declare_type. 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.
declare_type is provided by the Ida Domain MCP server (xxyyue/ida_domain_mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Ida Domain, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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74 Ida Domain tools catalogued and risk-classified — across an index of 43,000+ MCP servers.