Get current version information and check if updates are available
AI agents call get_version_info to retrieve information from Claude Critical Rules 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 passive information retrieval function—checking version metadata and update availability. It has no side effects, does not modify data, execute code, delete resources, or affect financial state. The sibling tool 'check_for_updates' confirms this is a monitoring/status function rather than an action tool. Confidence is high because the description unambiguously describes a read operation.
From the tool's definition Tool name 'get_version_info' and description 'Get current version information and check if updates are available' indicate a read-only query operation that retrieves status data without modifying state or executing external commands.
Documented attack patterns abuse exactly the kind of access get_version_info gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Claude Critical Rules MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for get_version_info:
{
"version": "1",
"default": "deny",
"tools": {
"get_version_info": {}
}
}get_version_info is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Get current version information and check if updates are available. It is categorised as a Read tool in the Claude Critical Rules MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Claude Critical Rules MCP Server MCP server in PolicyLayer and add a rule for get_version_info: 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 Claude Critical Rules MCP Server. Nothing to install.
get_version_info 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_version_info 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_version_info. 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_version_info is provided by the Claude Critical Rules MCP Server MCP server (optimaquantum/claude-critical-rules-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Claude Critical Rules 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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5 Claude Critical Rules MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.