Get parameters used in a specific build
AI agents call get_build_parameters to retrieve information from Jenkins without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves historical build parameter data without creating, modifying, deleting, or executing any operations. It is a read-only query operation on Jenkins build records. The blast radius is minimal since it only exposes build configuration details that are typically already visible within Jenkins to authorized users. No code execution, data modification, or destructive actions are possible.
From the tool's definition Tool name 'get_build_parameters' and description 'Get parameters used in a specific build' indicate retrieval of build metadata with no modification or execution.
Documented attack patterns abuse exactly the kind of access get_build_parameters gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Jenkins, and nothing reaches the server without passing your rules. This is the rule we recommend for get_build_parameters:
{
"version": "1",
"default": "deny",
"tools": {
"get_build_parameters": {}
}
}get_build_parameters is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Get parameters used in a specific build. It is categorised as a Read tool in the Jenkins MCP Server, which means it retrieves data without modifying state.
Register the Jenkins MCP server in PolicyLayer and add a rule for get_build_parameters: 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. Nothing to install.
get_build_parameters 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_build_parameters 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_build_parameters. 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_build_parameters is provided by the Jenkins MCP server (truxt-ai/jenkins-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Jenkins, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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14 Jenkins tools catalogued and risk-classified — across an index of 43,000+ MCP servers.