AI agents call bigquery_list_tables to retrieve information from Mimi Seed without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves metadata about tables in a BigQuery dataset. It performs a read-only query operation with no side effects—it neither creates, modifies, deletes data, nor executes arbitrary code. The blast radius of misuse is minimal: an attacker could enumerate dataset structure but cannot access, modify, or delete actual data through this tool alone.
From the tool's definition Tool name 'bigquery_list_tables' and description '조회' (query/retrieve) indicate a data retrieval operation that lists tables in a BigQuery dataset with no modification or deletion.
Attacks that exploit this kind of access
BigQuery 데이터셋의 테이블 목록 조회. It is categorised as a Read tool in the Mimi Seed MCP Server, which means it retrieves data without modifying state.
Register the Mimi Seed MCP server in PolicyLayer and add a rule for bigquery_list_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 Mimi Seed. Nothing to install.
bigquery_list_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 bigquery_list_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 bigquery_list_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.
bigquery_list_tables is provided by the Mimi Seed MCP server (@yoonion/mimi-seed-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
bigquery_list_tables is one line of Mimi Seed'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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