file_release · Forgespec MCP: Risk & Policy

WHAT IT DOES

What file_release does on Forgespec

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

WHY IT NEEDS A POLICY

Why file_release needs a policy

This tool releases advisory locks/reservations on files, which modifies coordination state (the reservation record) but does so reversibly — another agent can re-reserve the file afterward. It is a Write operation (modifying reservation state) rather than Destructive, since releasing a reservation does not delete the file or its contents.

From the tool's definition Release file reservations held by an agent

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

file_release Rate-limited

file_release 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": {
    "file_release": {
      "limits": [
        {
          "counter": "file_release_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 Forgespec, so you can run agents against it safely.

FAQ

Questions about file_release

What does the file_release tool do? +

Release file reservations held by an agent. It is categorised as a Write tool in the Forgespec MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on file_release? +

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

What risk level is file_release? +

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

Can I rate-limit file_release? +

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

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

file_release is provided by the Forgespec MCP server (lleontor705/forgespec-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.