ralph_hero__create_comment · Ralph Hero MCP: Risk & Policy

WHAT IT DOES

What ralph_hero__create_comment does on Ralph Hero

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

WHY IT NEEDS A POLICY

Why ralph_hero__create_comment needs a policy

The tool creates a new comment artifact on an issue, which is a Write operation (creates data reversibly). While comments are typically not sensitive financial or destructive operations, they modify GitHub project state and could be misused to spam, harass, or inject misleading information into issue discussions.

From the tool's definition Tool performs 'Add a comment to a GitHub issue' — this creates new data (a comment) in GitHub that can be edited or deleted by authorized users but represents a reversible modification.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

ralph_hero__create_comment Rate-limited

ralph_hero__create_comment 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": {
    "ralph_hero__create_comment": {
      "limits": [
        {
          "counter": "ralph_hero__create_comment_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 Ralph Hero, so you can run agents against it safely.

FAQ

Questions about ralph_hero__create_comment

What does the ralph_hero__create_comment tool do? +

Add a comment to a GitHub issue. Returns: commentId, issueNumber. Recovery: if issue not found, verify the issue number exists in the repository. It is categorised as a Write tool in the Ralph Hero MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on ralph_hero__create_comment? +

Register the Ralph Hero MCP server in PolicyLayer and add a rule for ralph_hero__create_comment: 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 Ralph Hero. Nothing to install.

What risk level is ralph_hero__create_comment? +

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

Can I rate-limit ralph_hero__create_comment? +

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

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

ralph_hero__create_comment is provided by the Ralph Hero MCP server (ralph-hero-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.