ruff-check

Runs ruff check and returns structured lint diagnostics (file, line, code, message).

SERVERGit SOURCEDave-London/Pare

High RISK CLASS

Category Execute

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/io-github-dave-london-git/ruff-check.md

WHAT IT DOES

What ruff-check does on Git

AI agents invoke ruff-check to trigger actions in Git. 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.

RISK

Why ruff-check is rated High

The tool runs an external command (ruff check) on the filesystem. While read-only in intent (lint diagnostics only, no file modifications), it executes an external process whose behavior depends on arguments (which files/paths are targeted). This qualifies as Execute.

From the tool's definition 'Runs ruff check' — explicitly executes an external linting process against code files

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs ruff-check safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Git, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For ruff-check, this is the rule to start with:

ruff-check Rate-limited

ruff-check 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": {
    "ruff-check": {
      "limits": [
        {
          "counter": "ruff-check_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Git, apply this rule, and every ruff-check call is checked against it from then on.

FAQ

Questions about ruff-check

What does the ruff-check tool do? +

Runs ruff check and returns structured lint diagnostics (file, line, code, message). It is categorised as a Execute tool in the Git MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on ruff-check? +

Register the Git MCP server in PolicyLayer and add a rule for ruff-check: 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 Git. Nothing to install.

What risk level is ruff-check? +

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

Can I rate-limit ruff-check? +

Yes. Add a rate_limit block to the ruff-check 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 ruff-check completely? +

Set action: deny in the PolicyLayer policy for ruff-check. 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 ruff-check? +

ruff-check is provided by the Git MCP server (Dave-London/Pare). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

KEEP EXPLORING

More on Git, and thousands of servers like it.

This server

All 202 Git tools → High-risk tools on this server →

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All high-risk MCP tools → The MCP Attack Database →

Guides

Govern code and CI agents →Agent sandbox →Least privilege for MCP →