apply_objective_to_path

WHAT IT DOES

What apply_objective_to_path does on Hammerspace Storage Management MCP Server

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

WHY IT NEEDS A POLICY

Why apply_objective_to_path needs a policy

This tool modifies data placement and tiering policies on storage infrastructure, which are reversible configuration changes that affect how data is stored and managed across storage tiers. It does not delete data (Destructive), execute arbitrary code (Execute), or move money (Financial), but it does persistently change storage management state.

From the tool's definition 'Apply a Hammerspace objective to a path' with tier placement directives (placeonvolumes for tier1, place-on-tier0 for tier0) modifies storage tier assignments and data placement policies.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

apply_objective_to_path Rate-limited

apply_objective_to_path 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": {
    "apply_objective_to_path": {
      "limits": [
        {
          "counter": "apply_objective_to_path_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 Hammerspace Storage Management MCP Server, so you can run agents against it safely.

FAQ

Questions about apply_objective_to_path

What does the apply_objective_to_path tool do? +

Apply a Hammerspace objective to a path (e.g., placeonvolumes for tier1, place-on-tier0 for tier0). It is categorised as a Write tool in the Hammerspace Storage Management 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 apply_objective_to_path? +

Register the Hammerspace Storage Management MCP Server MCP server in PolicyLayer and add a rule for apply_objective_to_path: 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 Hammerspace Storage Management MCP Server. Nothing to install.

What risk level is apply_objective_to_path? +

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

Can I rate-limit apply_objective_to_path? +

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

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

apply_objective_to_path is provided by the Hammerspace Storage Management MCP Server MCP server (mbloomhammerspace/mcp-1.5-main). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.