AI agents call get_build_scripts 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 build script information without creating, modifying, deleting, or executing operations. However, severity is elevated from 'low' to 'medium' because build scripts may contain sensitive information (credentials, API keys, internal commands, or proprietary logic), and unauthorized access could leak this data to an AI agent that might then exfiltrate or misuse it.
From the tool's definition Tool name 'get_build_scripts' and description 'Get scripts used in a specific build' indicate data retrieval with no modification. The verb 'get' and passive phrasing confirm read-only semantics.
Attacks that exploit this kind of access
Get scripts 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_scripts: 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_scripts 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_scripts 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_scripts. 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_scripts is provided by the Jenkins MCP server (mcpland/jenkins-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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