jsr_approve_authorization · JSR MCP: Risk & Policy

WHAT IT DOES

What jsr_approve_authorization does on JSR MCP

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

WHY IT NEEDS A POLICY

Why jsr_approve_authorization needs a policy

The tool approves (modifies) an authorization record, which is a write operation that creates or modifies data reversibly. While it doesn't delete data, the consequence of approving an authorization could enable elevated access or permissions for the authenticated entity. The high severity reflects that misuse could grant unintended access to packages or scopes.

From the tool's definition Tool name 'jsr_approve_authorization' and description 'Approve an authorization' indicate modification of authorization state. This is a reversible write operation that grants or enables access permissions.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

jsr_approve_authorization Rate-limited

jsr_approve_authorization 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": {
    "jsr_approve_authorization": {
      "limits": [
        {
          "counter": "jsr_approve_authorization_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 JSR MCP, so you can run agents against it safely.

FAQ

Questions about jsr_approve_authorization

What does the jsr_approve_authorization tool do? +

Approve an authorization (requires authentication). It is categorised as a Write tool in the JSR MCP MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on jsr_approve_authorization? +

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

What risk level is jsr_approve_authorization? +

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

Can I rate-limit jsr_approve_authorization? +

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

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

jsr_approve_authorization is provided by the JSR MCP server (wyattjoh/jsr-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.