copilot-explain

THE RISK

Low Risk

Why copilot-explain needs a policy

This tool reads and analyzes code to provide explanations. It does not create, modify, delete, execute, or make financial transactions. It is a straightforward query/analysis tool that retrieves and presents information. The low severity reflects that misuse would only result in potentially misleading or verbose explanations, with no capability to harm systems or data.

From the tool's definition Tool description states 'Get detailed explanations of code or technical concepts' - a pure information retrieval operation with no side effects, data modification, or external actions.

Documented attack patterns abuse exactly the kind of access copilot-explain gives an agent:

POLICY

How to control copilot-explain

PolicyLayer is an MCP gateway — it sits between your AI agents and GitHub Copilot MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for copilot-explain:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "copilot-explain": {}
  }
}

copilot-explain is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.

Create a free account and register GitHub Copilot MCP Server — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

CAP THIS TOOL →

Free to start. No card required.

EXPLORE

Related tools and policies

More GitHub Copilot MCP Server tools

Write copilot-session-start Start a new Copilot conversation session Read ask-copilot Ask GitHub Copilot CLI to help with coding tasks, generate commands, explain code, or prov Read copilot-debug Help debug code errors and issues Read copilot-refactor Suggest refactoring improvements for code Read copilot-review Get a code review with suggestions Read copilot-session-history Retrieve the conversation history for the current session Read copilot-suggest Get CLI command suggestions for specific tasks Read copilot-test-generate Generate unit tests for code

All 9 GitHub Copilot MCP Server tools →

Read tools on other servers

M-Team MCP Server get_torrent_detail YouTube MCP Server search_channel Android Forensics ADB MCP Server parse_browser_history 0xarchive web3_challenge

Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Data exfiltration → How read access becomes an exfiltration channel when chained with untrusted content.
MCP token cost → What connecting this server costs in context-window tokens on every request.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about copilot-explain

What does the copilot-explain tool do? +

Get detailed explanations of code or technical concepts. It is categorised as a Read tool in the GitHub Copilot MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on copilot-explain? +

Register the GitHub Copilot MCP Server MCP server in PolicyLayer and add a rule for copilot-explain: 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 GitHub Copilot MCP Server. Nothing to install.

What risk level is copilot-explain? +

copilot-explain is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit copilot-explain? +

Yes. Add a rate_limit block to the copilot-explain 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 copilot-explain completely? +

Set action: deny in the PolicyLayer policy for copilot-explain. 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 copilot-explain? +

copilot-explain is provided by the GitHub Copilot MCP Server MCP server (poorgramer-zack/copilot-mcp-tool). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every GitHub Copilot MCP Server tool call.

Start from GitHub Copilot MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →