Gets the detailed schema of multiple tables in parallel for improved performance.
AI agents call describe-batch-tables to retrieve information from MCP Firebird without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves metadata (table schema definitions) from the database without modifying, executing, or deleting any data. It is purely informational. The parallel retrieval optimization does not change its fundamental read-only nature. No side effects or destructive operations are possible.
From the tool's definition Tool description states it 'Gets the detailed schema of multiple tables' - a retrieval operation with no data modification. The word 'Gets' and 'schema' indicate read-only information retrieval.
Risk signalsBulk/mass operation — affects multiple targets
Documented attack patterns abuse exactly the kind of access describe-batch-tables gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and MCP Firebird, and nothing reaches the server without passing your rules. This is the rule we recommend for describe-batch-tables:
{
"version": "1",
"default": "deny",
"tools": {
"describe-batch-tables": {}
}
}describe-batch-tables is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Gets the detailed schema of multiple tables in parallel for improved performance. It is categorised as a Read tool in the MCP Firebird MCP Server, which means it retrieves data without modifying state.
Register the MCP Firebird MCP server in PolicyLayer and add a rule for describe-batch-tables: 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 MCP Firebird. Nothing to install.
describe-batch-tables 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-batch-tables 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-batch-tables. 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-batch-tables is provided by the MCP Firebird MCP server (purodelphi/mcpfirebird). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 22 MCP Firebird tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
22 MCP Firebird tools catalogued and risk-classified — across an index of 42,500+ MCP servers.