update_branch_protection · GitHub MCP Server MCP

WHAT IT DOES

What update_branch_protection does on GitHub MCP Server

AI agents use update_branch_protection to create or update resources in GitHub MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your GitHub MCP Server environment.

WHY IT NEEDS A POLICY

Why update_branch_protection needs a policy

The tool modifies repository branch protection settings (a reversible Write operation), which control access control, merge requirements, and code review enforcement. Misuse could weaken security policies or lock developers out of workflows, creating significant operational impact. Without a description, confidence is reduced but the verb 'update' clearly indicates Write rather than Read or destructive action.

From the tool's definition Tool name 'update_branch_protection' indicates modification of branch protection rules; no description provided but sibling tools include create_branch, create_commit_status, create_pr_review, suggesting this server manages repository settings and policies.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

update_branch_protection Rate-limited

update_branch_protection stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "update_branch_protection": {
      "limits": [
        {
          "counter": "update_branch_protection_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

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 update_branch_protection

What does the update_branch_protection tool do? +

update_branch_protection. It is categorised as a Write tool in the GitHub MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on update_branch_protection? +

Register the GitHub MCP Server MCP server in PolicyLayer and add a rule for update_branch_protection: 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 update_branch_protection? +

update_branch_protection is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit update_branch_protection? +

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

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

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