Get the column schema for a database view. Returns an array of column definitions with key (opaque 8-char ID, needed for update_database_cell), name (human-readable), type (string, number, date, label, checkbox, etc.), and edit settings. Use this to understand a database
AI agents call get_database_schema to retrieve information from Fusebase MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool only queries and returns structural information about a database schema (column definitions, types, edit settings). It performs no data modification, deletion, code execution, or financial operations. The returned metadata is necessary for understanding database structure but does not change system state. This is a classic Read operation with minimal blast radius if misused by an AI agent.
From the tool's definition Tool description states 'Get the column schema for a database view. Returns an array of column definitions' - purely retrieves and returns schema metadata without modification or side effects.
Attacks that exploit this kind of access
Get the column schema for a database view. Returns an array of column definitions with key (opaque 8-char ID, needed for update_database_cell), name (human-readable), type (string, number, date, label, checkbox, etc.), and edit settings. Use this to understand a database. It is categorised as a Read tool in the Fusebase MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Fusebase MCP Server MCP server in PolicyLayer and add a rule for get_database_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 Fusebase MCP Server. Nothing to install.
get_database_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_database_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_database_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_database_schema is provided by the Fusebase MCP Server MCP server (ryan-haver/fusebase-mcp). 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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