Critical Risk →

reset

Resets the current HEAD to a specified state. Supports soft, mixed, hard, merge, and keep modes. The

How to control reset ↓

What reset does on Build

AI agents call reset to permanently remove resources in Build — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.

Critical Risk

Why reset needs a policy

Although the tool supports multiple reset modes (soft, mixed, hard, merge, keep), the hard mode capability makes this Destructive rather than Execute, as it irreversibly modifies repository state and discards data. Even soft/mixed resets alter HEAD state in ways that can lose work if misused by an agent.

From the tool's definition "Resets the current HEAD to a specified state" with support for "hard" mode indicates irreversible changes to version control state. Hard reset discards uncommitted changes and rewrites history, which cannot be undone without recovery tools.

Documented attack patterns abuse exactly the kind of access reset gives an agent:

How to control reset

PolicyLayer is an MCP gateway — it sits between your AI agents and Build, and nothing reaches the server without passing your rules. This is the rule we recommend for reset:

policy.json
{
  "version": "1",
  "default": "deny",
  "hide": [
    "reset"
  ]
}

reset disappears from the agent's tool list entirely, and any attempt to call it is denied. The rest of the server keeps working.

  1. Create a free account and register Build — nothing to install.
  2. Add this policy — paste it, or build it visually.
  3. Point your MCP client (Claude, Cursor, anything) at your gateway URL.
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Related tools and policies

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Questions about reset

What does the reset tool do? +

Resets the current HEAD to a specified state. Supports soft, mixed, hard, merge, and keep modes. The. It is categorised as a Destructive tool in the Build MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.

How do I enforce a policy on reset? +

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

What risk level is reset? +

reset is a Destructive tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.

Can I rate-limit reset? +

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

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

reset is provided by the Build MCP server (Dave-London/Pare). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Build tool call.

Start from Build, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

Free to start. No card required.

202 Build tools catalogued and risk-classified — across an index of 43,000+ MCP servers.

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