Show changes in the working directory
AI agents call git_diff to retrieve information from MCP Git Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
git_diff is a read-only operation that retrieves and displays the differences between files or commits. It has no side effects on the repository state, does not execute code, and does not destructively alter data. The blast radius of misuse is minimal since an agent cannot cause harm by viewing diffs.
From the tool's definition Tool name is 'git_diff' and description states 'Show changes in the working directory' — this displays a diff output without modifying, deleting, or executing any code.
Attacks that exploit this kind of access
Show changes in the working directory. It is categorised as a Read tool in the MCP Git Server MCP Server, which means it retrieves data without modifying state.
Register the MCP Git Server MCP server in PolicyLayer and add a rule for git_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 MCP Git Server. Nothing to install.
git_diff 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 git_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.
Set action: deny in the PolicyLayer policy for git_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.
git_diff is provided by the MCP Git Server MCP server (mikeybeez/mcp-git). 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.
Teams ship this data inside their own products. See what a licence covers →