codebrain_generate · CodeBrain MCP: Risk & Policy

WHAT IT DOES

What codebrain_generate does on CodeBrain

AI agents invoke codebrain_generate to trigger actions in CodeBrain. 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 codebrain_generate needs a policy

The tool name and server context strongly suggest it generates code via a local LLM. Code generation typically falls under Execute as it runs an LLM process and produces code that may be applied to a codebase. However, the description is empty, so confidence is lowered. Based on sibling tools and server description, this is most likely a code generation tool, which is Execute-level risk.

From the tool's definition Tool name 'codebrain_generate' on a server that 'offloads bulk coding tasks to local LLMs' and performs 'boilerplate generation'; sibling tools include codebrain_batch_generate and codebrain_generate_verified suggesting code generation capabilities.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

codebrain_generate Rate-limited

codebrain_generate 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": {
    "codebrain_generate": {
      "limits": [
        {
          "counter": "codebrain_generate_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 CodeBrain, so you can run agents against it safely.

FAQ

Questions about codebrain_generate

What does the codebrain_generate tool do? +

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

How do I enforce a policy on codebrain_generate? +

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

What risk level is codebrain_generate? +

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

Can I rate-limit codebrain_generate? +

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

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

codebrain_generate is provided by the CodeBrain MCP server (tschonsen/codebrain). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.