AI agents call collection_stats to retrieve information from Omni Rag 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 statistical information about an indexed collection. The verb 'Get' combined with 'statistics' (descriptive metadata) clearly indicates a read-only operation. There are no side effects, no data modification, and no code execution. The deprecation note further confirms it is a simple informational query.
From the tool's definition Tool name 'collection_stats' and description 'Get index statistics' indicate retrieval of metadata about an existing index with no modification or deletion capability.
Attacks that exploit this kind of access
[Deprecated: use 'stats'] Get index statistics. It is categorised as a Read tool in the Omni Rag MCP Server, which means it retrieves data without modifying state.
Register the Omni Rag MCP server in PolicyLayer and add a rule for collection_stats: 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 Omni Rag. Nothing to install.
collection_stats 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 collection_stats 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 collection_stats. 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.
collection_stats is provided by the Omni Rag MCP server (suyash2013/codebase-rag-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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