modify_file

A write tool on the Hexstrike Ai MCP server.

SERVERHexstrike Ai SOURCE0x4m4/hexstrike-ai

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/hexstrike-ai/modify-file.md

WHAT IT DOES

What modify_file does on Hexstrike Ai

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

RISK

Why modify_file is rated Medium

The tool name 'modify_file' unambiguously indicates a write operation that creates or modifies files. In the context of a pentesting/security research server (HexStrike AI), file modification could include updating payloads, scripts, or configurations. While the empty description prevents full context, the name itself is sufficiently clear. This is Write (not Destructive) because modification is typically reversible.

From the tool's definition Tool name is 'modify_file' which directly indicates creation or modification of data. Description is empty, reducing confidence but not changing the core classification.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs modify_file safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Hexstrike Ai, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For modify_file, this is the rule to start with:

modify_file Rate-limited

modify_file 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": {
    "modify_file": {
      "limits": [
        {
          "counter": "modify_file_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Hexstrike Ai, apply this rule, and every modify_file call is checked against it from then on.

FAQ

Questions about modify_file

What does the modify_file tool do? +

modify_file is a write tool on the Hexstrike Ai MCP server. It is categorised as a Write tool in the Hexstrike Ai MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on modify_file? +

Register the Hexstrike Ai MCP server in PolicyLayer and add a rule for modify_file: 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 Hexstrike Ai. Nothing to install.

What risk level is modify_file? +

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

Can I rate-limit modify_file? +

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

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

modify_file is provided by the Hexstrike Ai MCP server (0x4m4/hexstrike-ai). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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