Return Jenkins version from the X-Jenkins response header.
AI agents call jenkins_version to retrieve information from Jenkins Http without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs a read-only operation that fetches Jenkins version information via an HTTP response header. It has no capability to modify, execute, delete, or move resources. The blast radius of misuse is minimal—an attacker gains only version information, which while useful for reconnaissance, causes no direct harm to systems or data.
From the tool's definition Tool name 'jenkins_version' and description 'Return Jenkins version from the X-Jenkins response header' indicate a simple query operation that retrieves version metadata with no side effects.
Attacks that exploit this kind of access
Return Jenkins version from the X-Jenkins response header. It is categorised as a Read tool in the Jenkins Http MCP Server, which means it retrieves data without modifying state.
Register the Jenkins Http MCP server in PolicyLayer and add a rule for jenkins_version: 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 Jenkins Http. Nothing to install.
jenkins_version 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 jenkins_version 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 jenkins_version. 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.
jenkins_version is provided by the Jenkins Http MCP server (mdtahmidhossain/jenkins-http-mcp-server). 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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