Retrieves the input schema for a specific saved flow
AI agents call retrieveInputSchema to retrieve information from OpenAI Web Search MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs a retrieval operation that queries metadata about a saved flow's input structure. It does not create, modify, delete, or execute anything—it only fetches and returns information. The read-only nature and absence of side effects place it firmly in the Read category with low severity.
From the tool's definition Tool name 'retrieveInputSchema' and description 'Retrieves the input schema for a specific saved flow' indicate a read-only query operation with no side effects or data modification.
Attacks that exploit this kind of access
Retrieves the input schema for a specific saved flow. It is categorised as a Read tool in the OpenAI Web Search MCP Server MCP Server, which means it retrieves data without modifying state.
Register the OpenAI Web Search MCP Server MCP server in PolicyLayer and add a rule for retrieveInputSchema: 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 OpenAI Web Search MCP Server. Nothing to install.
retrieveInputSchema 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 retrieveInputSchema 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 retrieveInputSchema. 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.
retrieveInputSchema is provided by the OpenAI Web Search MCP Server MCP server (tiovikram/gumloop-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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