List files in a file batch
AI agents call vector-store-file-batch-files to retrieve information from Universal OpenAI Vector Store MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries and returns information about files within a batch operation without modifying, deleting, or executing anything. It is a straightforward read operation on vector store metadata.
From the tool's definition Tool name contains 'list' action (implied by 'batch-files') and description explicitly states 'List files in a file batch' — a retrieval operation with no side effects.
Risk signalsBulk/mass operation — affects multiple targets
Documented attack patterns abuse exactly the kind of access vector-store-file-batch-files gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Universal OpenAI Vector Store MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for vector-store-file-batch-files:
{
"version": "1",
"default": "deny",
"tools": {
"vector-store-file-batch-files": {}
}
} vector-store-file-batch-files is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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List files in a file batch. It is categorised as a Read tool in the Universal OpenAI Vector Store MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Universal OpenAI Vector Store MCP Server MCP server in PolicyLayer and add a rule for vector-store-file-batch-files: 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 Universal OpenAI Vector Store MCP Server. Nothing to install.
vector-store-file-batch-files 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 vector-store-file-batch-files 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 vector-store-file-batch-files. 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.
vector-store-file-batch-files is provided by the Universal OpenAI Vector Store MCP Server MCP server (jezweb/openai-vector-assistant-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Universal OpenAI Vector Store MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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21 Universal OpenAI Vector Store MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.