AI ASSISTANT: Extract validation rules, constraints, and best practices directly from values.yaml comments. Returns structured rules for AI to understand complex relationships and semantic validations that procedural code cannot handle. USE THIS when you need to understand the
AI agents call extract-validation-rules to retrieve information from Vcluster Yaml without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries and retrieves validation metadata from configuration files. It performs information extraction only, with no side effects on system state, data modification, or command execution. The output is structured metadata intended for understanding configuration constraints, not for making changes. This is a straightforward Read operation with low risk.
From the tool's definition Tool description states it 'Extract[s] validation rules, constraints, and best practices directly from values.yaml comments' and 'Returns structured rules' — pure data retrieval with no modification, deletion, or execution.
Attacks that exploit this kind of access
AI ASSISTANT: Extract validation rules, constraints, and best practices directly from values.yaml comments. Returns structured rules for AI to understand complex relationships and semantic validations that procedural code cannot handle. USE THIS when you need to understand the. It is categorised as a Read tool in the Vcluster Yaml MCP Server, which means it retrieves data without modifying state.
Register the Vcluster Yaml MCP server in PolicyLayer and add a rule for extract-validation-rules: 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 Vcluster Yaml. Nothing to install.
extract-validation-rules 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 extract-validation-rules 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 extract-validation-rules. 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.
extract-validation-rules is provided by the Vcluster Yaml MCP server (vcluster-yaml-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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