get_file_ledger

Get all logged changes that touched a specific file path. Use to understand the change history of a file before modifying it.

SERVERMcp Dev SOURCE2loch-ness6/mempalace-mcp-dev

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade D, identity unverified Pull the record →

This record as markdown: /tools/2loch-ness6-mempalace-mcp-dev/get-file-ledger.md

WHAT IT DOES

What get_file_ledger does on Mcp Dev

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

RISK

Why get_file_ledger is rated Low

This tool retrieves and queries a change ledger for a specific file. It produces no side effects, does not modify data, and does not execute code or delete anything. It is purely informational, helping an AI understand version history before making changes. The low severity reflects minimal blast radius — an agent could only access metadata about past changes.

From the tool's definition Tool description states 'Get all logged changes that touched a specific file path' — uses 'Get' and 'logged changes', indicating retrieval of historical data with no modification or deletion.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs get_file_ledger safely

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

get_file_ledger Allowed

get_file_ledger 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": {
    "get_file_ledger": {}
  }
}

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

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

FAQ

Questions about get_file_ledger

What does the get_file_ledger tool do? +

Get all logged changes that touched a specific file path. Use to understand the change history of a file before modifying it. It is categorised as a Read tool in the Mcp Dev MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on get_file_ledger? +

Register the Mcp Dev MCP server in PolicyLayer and add a rule for get_file_ledger: 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 Mcp Dev. Nothing to install.

What risk level is get_file_ledger? +

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

Can I rate-limit get_file_ledger? +

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

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

get_file_ledger is provided by the Mcp Dev MCP server (2loch-ness6/mempalace-mcp-dev). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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