git-rebase · GitHub MCP Server MCP: Risk & Policy

WHAT IT DOES

What git-rebase does on GitHub MCP Server

AI agents invoke git-rebase to trigger actions in GitHub MCP Server. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call — builds kicked off, notifications sent, workflows started.

WHY IT NEEDS A POLICY

Why git-rebase needs a policy

git-rebase rewrites commit history by replaying commits onto a new base. This is a complex operation that modifies the repository's commit graph. While it can be undone via reflog in some cases, it rewrites history and can cause data loss if used improperly (especially with --force-push or on shared branches).

From the tool's definition Rebase current branch onto another branch or commit

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

git-rebase Rate-limited

git-rebase stays usable, but rate-capped — a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "git-rebase": {
      "limits": [
        {
          "counter": "git-rebase_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches GitHub MCP Server, so you can run agents against it safely.

FAQ

Questions about git-rebase

What does the git-rebase tool do? +

Rebase current branch onto another branch or commit. It is categorised as a Execute tool in the GitHub MCP Server MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on git-rebase? +

Register the GitHub MCP Server MCP server in PolicyLayer and add a rule for git-rebase: 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 GitHub MCP Server. Nothing to install.

What risk level is git-rebase? +

git-rebase is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit git-rebase? +

Yes. Add a rate_limit block to the git-rebase 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-rebase completely? +

Set action: deny in the PolicyLayer policy for git-rebase. 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-rebase? +

git-rebase is provided by the GitHub MCP Server MCP server (jungchihoon/github-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.