Get code review rules (builtin + custom project rules).
AI agents call get_review_rules to retrieve information from Code Review without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves code review rules (both builtin and custom project rules) without modifying, deleting, or executing any operations. It is purely informational and carries minimal risk—the worst case is information disclosure about review policies, which is low severity.
From the tool's definition Tool name 'get_review_rules' and description 'Get code review rules' indicate a retrieval operation with no side effects. The verb 'Get' is a standard read operation that queries existing configuration data.
Attacks that exploit this kind of access
Get code review rules (builtin + custom project rules). It is categorised as a Read tool in the Code Review MCP Server, which means it retrieves data without modifying state.
Register the Code Review MCP server in PolicyLayer and add a rule for get_review_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 Code Review. Nothing to install.
get_review_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 get_review_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 get_review_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.
get_review_rules is provided by the Code Review MCP server (oldjii/code-review-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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