Query a Notion database with optional filter
AI agents call query_database to retrieve information from Multi-MCPs without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves data from a Notion database without creating, modifying, or deleting any content. It performs a read operation with optional filtering parameters, which is a standard query operation with no side effects. The severity is low because read access to user's own Notion workspace poses minimal risk compared to other categories.
From the tool's definition Tool name 'query_database' combined with description 'Query a Notion database with optional filter' indicates data retrieval with no modification. The verb 'query' and 'filter' are characteristic of read-only operations.
Attacks that exploit this kind of access
Query a Notion database with optional filter. It is categorised as a Read tool in the Multi-MCPs MCP Server, which means it retrieves data without modifying state.
Register the Multi-MCPs MCP server in PolicyLayer and add a rule for query_database: 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 Multi-MCPs. Nothing to install.
query_database 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_database 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_database. 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_database is provided by the Multi-MCPs MCP server (taylorchen/muti-mcps). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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