run_lint · Coding MCP Server MCP: Risk & Policy

WHAT IT DOES

What run_lint does on Coding MCP Server

AI agents invoke run_lint to trigger actions in Coding MCP Server. 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 run_lint needs a policy

This tool executes a project's lint command, which runs code analysis tools. While linting is generally safe compared to arbitrary command execution, it still executes external processes and could potentially trigger unintended side effects if lint configurations are malicious or if the linting tool itself has vulnerabilities.

From the tool's definition Tool name 'run_lint' and description 'Run project lint command' indicate execution of a linting command. The server description emphasizes 'safe command execution,' and this tool triggers external operations (linting scripts) whose behavior depends on project…

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

run_lint Rate-limited

run_lint 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": {
    "run_lint": {
      "limits": [
        {
          "counter": "run_lint_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 Coding MCP Server, so you can run agents against it safely.

FAQ

Questions about run_lint

What does the run_lint tool do? +

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

How do I enforce a policy on run_lint? +

Register the Coding MCP Server MCP server in PolicyLayer and add a rule for run_lint: 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 Coding MCP Server. Nothing to install.

What risk level is run_lint? +

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

Can I rate-limit run_lint? +

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

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

run_lint is provided by the Coding MCP Server MCP server (kieutrongthien/coding-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.