quire.putStorageValue · Quire MCP Server MCP: Risk & Policy

WHAT IT DOES

What quire.putStorageValue does on Quire MCP Server

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

WHY IT NEEDS A POLICY

Why quire.putStorageValue needs a policy

This tool writes/stores a value to Quire's storage system. It is a write operation (creating or updating a key-value entry) with no indication of irreversible deletion or financial impact. Misuse could lead to corrupted or malicious data being stored, warranting medium severity.

From the tool's definition 'Store a value in Quire' — creates or modifies stored data in the Quire platform

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

quire.putStorageValue Rate-limited

quire.putStorageValue 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": {
    "quire.putStorageValue": {
      "limits": [
        {
          "counter": "quire.putstoragevalue_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 Quire MCP Server, so you can run agents against it safely.

FAQ

Questions about quire.putStorageValue

What does the quire.putStorageValue tool do? +

Store a value in Quire. It is categorised as a Write tool in the Quire 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 quire.putStorageValue? +

Register the Quire MCP Server MCP server in PolicyLayer and add a rule for quire.putStorageValue: 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 Quire MCP Server. Nothing to install.

What risk level is quire.putStorageValue? +

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

Can I rate-limit quire.putStorageValue? +

Yes. Add a rate_limit block to the quire.putStorageValue 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 quire.putStorageValue completely? +

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

quire.putStorageValue is provided by the Quire MCP Server MCP server (jacob-hartmann/quire-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.