diff · Git Polite MCP: Risk & Policy

WHAT IT DOES

What diff does on Git Polite

AI agents call diff to retrieve information from Git Polite without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

WHY IT NEEDS A POLICY

Why diff needs a policy

The tool name 'diff' strongly implies a read-only operation that shows changes between versions. The server context (organizing Git changes, staging precision) supports this interpretation. No description is provided to confirm or deny side effects, so confidence is reduced. Since it appears to be a standard Git diff operation, it is classified as Read with low severity.

From the tool's definition Tool name is 'diff'; description is empty. In the context of a Git tool server, 'diff' conventionally retrieves and displays differences between file versions without modifying anything.

Attacks that exploit this kind of access

Questions about diff

What does the diff tool do? +

diff. It is categorised as a Read tool in the Git Polite MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on diff? +

Register the Git Polite MCP server in PolicyLayer and add a rule for diff: 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 Git Polite. Nothing to install.

What risk level is diff? +

diff is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit diff? +

Yes. Add a rate_limit block to the diff 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.

How do I block diff completely? +

Set action: deny in the PolicyLayer policy for diff. 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.

What MCP server provides diff? +

diff is provided by the Git Polite MCP server (uneco/mcp-git-polite). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.