Execute a SELECT query against the database. Only SELECT statements are allowed for safety.
AI agents call query to retrieve information from LocalDB MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool is restricted to SELECT statements, which are read-only operations that query and retrieve data without modifying, deleting, or executing arbitrary code. The explicit safety constraint further confirms its read-only nature. Severity is low because even if misused, SELECT queries cannot cause data loss or unintended modifications; the blast radius is limited to unauthorized information disclosure.
From the tool's definition Tool description explicitly states 'Only SELECT statements are allowed for safety.' SELECT queries retrieve data without side effects.
Attacks that exploit this kind of access
Execute a SELECT query against the database. Only SELECT statements are allowed for safety. It is categorised as a Read tool in the LocalDB MCP Server MCP Server, which means it retrieves data without modifying state.
Register the LocalDB MCP Server MCP server in PolicyLayer and add a rule for query: 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 LocalDB MCP Server. Nothing to install.
query 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 query 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 query. 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.
query is provided by the LocalDB MCP Server MCP server (sam2332/localdb-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
query is one line of LocalDB MCP Server's registry record.
The record carries the whole server: verified identity, auth posture, risk grade, every tool classified, recommended policy — re-checked continuously.
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