generate_typescript_types
Generates TypeScript types for a project.
This record as markdown: /tools/supabase/generate-typescript-types.md
What generate_typescript_types does on Supabase
AI agents call generate_typescript_types to retrieve information from Supabase without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
| Parameter | Type | Required | Description |
|---|---|---|---|
project_id | string | — |
Parameters from the server's own tool schema.
Why generate_typescript_types is rated Low
Generating TypeScript types involves reading the database schema and producing output types. It does not modify data, execute commands, or have destructive effects. It is a read/introspection operation with minimal blast radius.
From the tool's definition 'Generates TypeScript types for a project' — this is a code generation/read operation that introspects the database schema to produce type definitions
Attacks that exploit this kind of access
The rule that runs generate_typescript_types safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Supabase, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For generate_typescript_types, this is the rule to start with:
generate_typescript_types is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Supabase, apply this rule, and every generate_typescript_types call is checked against it from then on.
Questions about generate_typescript_types
Generates TypeScript types for a project. It is categorised as a Read tool in the Supabase MCP Server, which means it retrieves data without modifying state.
generate_typescript_types accepts 1 parameter: project_id. The full parameter table on this page comes from the server's own tool schema.
Register the Supabase MCP server in PolicyLayer and add a rule for generate_typescript_types: 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 Supabase. Nothing to install.
generate_typescript_types 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 generate_typescript_types 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 generate_typescript_types. 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.
generate_typescript_types is provided by the Supabase MCP server (@modelcontextprotocol/server-supabase). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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