vibefix_submit_solution · Vibefix MCP: Risk & Policy

WHAT IT DOES

What vibefix_submit_solution does on Vibefix

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

WHY IT NEEDS A POLICY

Why vibefix_submit_solution needs a policy

This tool creates or modifies data in the bounty platform by submitting a solution/fix. It is a write operation that adds new records to the system (submissions) but is reversible—submissions can be withdrawn or replaced. It does not execute arbitrary code, delete data irreversibly, or move money.

From the tool's definition Submit your fix for a VibeFix bounty. Include a clear description of what you changed and a link to the repo/branch with your fix.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

vibefix_submit_solution Rate-limited

vibefix_submit_solution 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": {
    "vibefix_submit_solution": {
      "limits": [
        {
          "counter": "vibefix_submit_solution_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 Vibefix, so you can run agents against it safely.

FAQ

Questions about vibefix_submit_solution

What does the vibefix_submit_solution tool do? +

Submit your fix for a VibeFix bounty. Include a clear description of what you changed and a link to the repo/branch with your fix. Requires VIBEFIX_API_KEY. It is categorised as a Write tool in the Vibefix MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on vibefix_submit_solution? +

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

What risk level is vibefix_submit_solution? +

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

Can I rate-limit vibefix_submit_solution? +

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

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

vibefix_submit_solution is provided by the Vibefix MCP server (vibefix-technologies/mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.