Get database schema reconstructed from migrations or ORM model definitions. Use to understand table structure. For ORM-level context with relationships use get_model_context instead. Read-only. Returns JSON: { tables: [{ name, columns: [{ name, type, nullable, default }], indexes }] }.
AI agents call get_schema to retrieve information from Trace without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs schema introspection—querying existing database structure metadata without any side effects. The explicit 'Read-only' designation and JSON return of schema details confirm it is a data retrieval operation. No data is modified, deleted, or executed. Low severity because exposing schema information is a common and relatively low-risk operation in code analysis contexts.
From the tool's definition Tool description explicitly states 'Read-only' and 'Get database schema reconstructed from migrations or ORM model definitions.
Documented attack patterns abuse exactly the kind of access get_schema gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Trace, and nothing reaches the server without passing your rules. This is the rule we recommend for get_schema:
{
"version": "1",
"default": "deny",
"tools": {
"get_schema": {}
}
}get_schema is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Get database schema reconstructed from migrations or ORM model definitions. Use to understand table structure. For ORM-level context with relationships use get_model_context instead. Read-only. Returns JSON: { tables: [{ name, columns: [{ name, type, nullable, default }], indexes }] }. It is categorised as a Read tool in the Trace MCP Server, which means it retrieves data without modifying state.
Register the Trace MCP server in PolicyLayer and add a rule for get_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 Trace. Nothing to install.
get_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_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_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_schema is provided by the Trace MCP server (nikolai-vysotskyi/trace-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 178 Trace tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
178 Trace tools catalogued and risk-classified — across an index of 42,500+ MCP servers.