unstack · Git Polite MCP: Risk & Policy

WHAT IT DOES

What unstack does on Git Polite

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

WHY IT NEEDS A POLICY

Why unstack needs a policy

Given the context of a Git commit organization tool with 'apply_changes' and 'auto_commit' peers, 'unstack' most likely performs a write operation that modifies Git history or staging state. While theoretically reversible via 'git reflog' or undoing, the primary effect is to create or modify Git commits/branches, placing it in Write rather than Destructive. Without explicit description, confidence is moderate (0.6).

From the tool's definition Tool 'unstack' is a sibling to 'apply_changes', 'auto_commit', 'diff', and 'list_changes' in a Git workflow server. The name 'unstack' suggests reversing or splitting commit stacks, which would modify Git state (commit history, branch state).

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

unstack Rate-limited

unstack 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": {
    "unstack": {
      "limits": [
        {
          "counter": "unstack_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 Git Polite, so you can run agents against it safely.

FAQ

Questions about unstack

What does the unstack tool do? +

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

How do I enforce a policy on unstack? +

Register the Git Polite MCP server in PolicyLayer and add a rule for unstack: 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 unstack? +

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

Can I rate-limit unstack? +

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

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

unstack 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.