This record as markdown: /tools/libi/get-model-schema.md
What get_model_schema does on Libi
AI agents call get_model_schema to retrieve information from Libi without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why get_model_schema is rated Low
Retrieves schema data for testing; read-only operation with minimal side effects.
From the tool's definition Test-mode fal mirror; retrieves schema information, no modifications.
Attacks that exploit this kind of access
The rule that runs get_model_schema safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Libi, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For get_model_schema, this is the rule to start with:
get_model_schema 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 Libi, apply this rule, and every get_model_schema call is checked against it from then on.
Questions about get_model_schema
Test-mode fal mirror. It is categorised as a Read tool in the Libi MCP Server, which means it retrieves data without modifying state.
Register the Libi MCP server in PolicyLayer and add a rule for get_model_schema: 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 Libi. Nothing to install.
get_model_schema 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 get_model_schema 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 get_model_schema. 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.
get_model_schema is provided by the Libi MCP server (Nagellabs/libi). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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