git_diff_file

Show the diff for a single file.

SERVERLocalAnt SOURCEyuga-hashimoto/localant

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/yuga-hashimoto-localant/git-diff-file.md

WHAT IT DOES

What git_diff_file does on LocalAnt

AI agents call git_diff_file to retrieve information from LocalAnt without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why git_diff_file is rated Low

This tool retrieves and displays git diff output for a file, which is a read-only operation that queries version control history. It has no side effects, does not modify data, and does not execute arbitrary commands. The blast radius of misuse is minimal—an agent could only view file change history that likely already has appropriate access controls via git permissions.

From the tool's definition Tool name 'git_diff_file' and description 'Show the diff for a single file' indicate retrieval and display of version control differences without modification.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs git_diff_file safely

PolicyLayer is an MCP gateway: it sits between your AI agents and LocalAnt, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For git_diff_file, this is the rule to start with:

git_diff_file Allowed

git_diff_file is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "git_diff_file": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect LocalAnt, apply this rule, and every git_diff_file call is checked against it from then on.

FAQ

Questions about git_diff_file

What does the git_diff_file tool do? +

Show the diff for a single file. It is categorised as a Read tool in the LocalAnt MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on git_diff_file? +

Register the LocalAnt MCP server in PolicyLayer and add a rule for git_diff_file: 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 LocalAnt. Nothing to install.

What risk level is git_diff_file? +

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

Can I rate-limit git_diff_file? +

Yes. Add a rate_limit block to the git_diff_file 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 git_diff_file completely? +

Set action: deny in the PolicyLayer policy for git_diff_file. 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 git_diff_file? +

git_diff_file is provided by the LocalAnt MCP server (yuga-hashimoto/localant). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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