simple_chat · Ollama_MCP_Guidance MCP: Risk & Policy

WHAT IT DOES

What simple_chat does on Ollama_MCP_Guidance

AI agents invoke simple_chat to trigger actions in Ollama_MCP_Guidance. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call — builds kicked off, notifications sent, workflows started.

WHY IT NEEDS A POLICY

Why simple_chat needs a policy

Given the server context (Ollama API interactions, LLM calls) and the tool name 'simple_chat', this likely sends a chat/prompt to a local LLM and returns a response. This is an Execute-class action as it triggers an external LLM inference operation. Confidence is low due to the empty description, but sibling tools like 'simple_generate' and the server's stated purpose of LLM API calls support this classification.

From the tool's definition Tool name 'simple_chat' on a server that interfaces with Ollama API for LLM-based API calls; description is empty and uninformative.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

simple_chat Rate-limited

simple_chat stays usable, but rate-capped — a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "simple_chat": {
      "limits": [
        {
          "counter": "simple_chat_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Ollama_MCP_Guidance, so you can run agents against it safely.

FAQ

Questions about simple_chat

What does the simple_chat tool do? +

simple_chat. It is categorised as a Execute tool in the Ollama_MCP_Guidance MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on simple_chat? +

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

What risk level is simple_chat? +

simple_chat is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit simple_chat? +

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

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

simple_chat is provided by the Ollama_MCP_Guidance MCP server (shadovvsinger/ollama_mcp_guidance). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.