This record as markdown: /tools/sbox/describe-type.md
What describe_type does on Sbox
AI agents call describe_type to retrieve information from Sbox without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why describe_type is rated Low
The tool retrieves and returns information about a type in the s&box game engine without modifying, deleting, or executing anything. It is a read-only introspection capability, similar to a documentation lookup or type query. Blast radius is minimal since it only exposes existing type metadata.
From the tool's definition Tool name is 'describe_type' and description states 'Inspect a type' — this is a query/inspection operation with no side effects.
Attacks that exploit this kind of access
The rule that runs describe_type safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Sbox, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For describe_type, this is the rule to start with:
describe_type is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Sbox, apply this rule, and every describe_type call is checked against it from then on.
Questions about describe_type
Inspect a type. It is categorised as a Read tool in the Sbox MCP Server, which means it retrieves data without modifying state.
Register the Sbox MCP server in PolicyLayer and add a rule for describe_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 Sbox. Nothing to install.
describe_type 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 describe_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 describe_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.
describe_type is provided by the Sbox MCP server (sbox-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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