Perform a code review on the specified file.
AI agents call code_review to retrieve information from MCP Server Foundation Template without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Code review is inherently a read-only operation that examines and assesses code content for quality, bugs, and best practices. It retrieves and analyzes data without side effects, reversible changes, code execution, or data destruction. This fits the Read category definition of 'retrieves or queries data; no side effects'.
From the tool's definition Tool description states 'Perform a code review on the specified file' - code review is an analysis/inspection operation that reads and evaluates code without modifying, executing, or deleting it.
Attacks that exploit this kind of access
Perform a code review on the specified file. It is categorised as a Read tool in the MCP Server Foundation Template MCP Server, which means it retrieves data without modifying state.
Register the MCP Server Foundation Template MCP server in PolicyLayer and add a rule for code_review: 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 MCP Server Foundation Template. Nothing to install.
code_review 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 code_review 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 code_review. 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.
code_review is provided by the MCP Server Foundation Template MCP server (joeyheath65/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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