server_files_mutate

对远程文件执行一次精确变更；每次都需要单独确认。覆盖已有文件必须提供 server_files_read 返回且文件未变化的 editToken；不允许递归删除、修改权限或自动重试。

SERVERDutyDeck SOURCEtaokoplay/DutyDeck

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/dutydeck/server-files-mutate.md

WHAT IT DOES

What server_files_mutate does on DutyDeck

AI agents call server_files_mutate to retrieve information from DutyDeck without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why server_files_mutate is rated Low

Even though server_files_mutate only reads data, uncontrolled read access leaks sensitive information and racks up API costs: an agent caught in a retry loop can make thousands of calls a minute without anyone noticing.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs server_files_mutate safely

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

server_files_mutate Allowed

server_files_mutate is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "server_files_mutate": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

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

FAQ

Questions about server_files_mutate

What does the server_files_mutate tool do? +

对远程文件执行一次精确变更；每次都需要单独确认。覆盖已有文件必须提供 server_files_read 返回且文件未变化的 editToken；不允许递归删除、修改权限或自动重试。. It is categorised as a Read tool in the DutyDeck MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on server_files_mutate? +

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

What risk level is server_files_mutate? +

server_files_mutate is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit server_files_mutate? +

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

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

server_files_mutate is provided by the DutyDeck MCP server (taokoplay/DutyDeck). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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