AI agents invoke lexq_deploy_undeploy to trigger actions in LexQ. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call — builds kicked off, notifications sent, workflows started.
This tool triggers a deployment operation that diverts live traffic away from a version. While not destructive (the version persists), and not a write to data itself, it executes a significant operational change whose real-world impact depends on context (e.g., undeploying a critical system could cause service disruption). This fits Execute: it runs a command/procedure with side effects external to the tool itself.
From the tool's definition Tool name 'lexq_deploy_undeploy' combined with description 'Remove the live version from traffic' indicates an operational action that changes system state and behavior.
Attacks that exploit this kind of access
Remove the live version from traffic. The version stays ACTIVE but no longer serves requests. It is categorised as a Execute tool in the LexQ MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.
Register the LexQ MCP server in PolicyLayer and add a rule for lexq_deploy_undeploy: 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 LexQ. Nothing to install.
lexq_deploy_undeploy is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.
Yes. Add a rate_limit block to the lexq_deploy_undeploy 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 lexq_deploy_undeploy. 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.
lexq_deploy_undeploy is provided by the LexQ MCP server (lexq-io/lexq-cli). 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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