Get a build by number or Jenkins permalink such as lastBuild.
AI agents call jenkins_get_build 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 retrieves build information without side effects. It queries Jenkins to return build details using a build number or permalink (e.g., 'lastBuild'). No data is created, modified, deleted, or executed. This is a straightforward read operation with minimal risk.
From the tool's definition Tool name 'get_build' and description 'Get a build by number or Jenkins permalink' indicate retrieval/query operations with no modification of data.
Attacks that exploit this kind of access
Get a build by number or Jenkins permalink such as lastBuild. 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_get_build: 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_get_build 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_get_build 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_get_build. 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_get_build 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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