AI agents use apply_types 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.
This tool writes type annotations to an IDA Pro reverse engineering database. While type annotations are metadata and technically reversible (types can be changed or cleared), applying types modifies the state of the analysis database in a way that persists and affects downstream analysis.
From the tool's definition apply_types: Apply types (function/global/local/stack) – this modifies type information in an IDA Pro database, which is a reversible write operation that changes analysis metadata.
Documented attack patterns abuse exactly the kind of access apply_types 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 apply_types:
{
"version": "1",
"default": "deny",
"tools": {
"apply_types": {
"limits": [
{
"counter": "apply_types_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}apply_types 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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Apply types (function/global/local/stack). 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 apply_types: 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.
apply_types 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 apply_types 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 apply_types. 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.
apply_types 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.
Free to start. No card required.
74 Ida Domain tools catalogued and risk-classified — across an index of 43,000+ MCP servers.