gists_list_public

THE RISK

Low Risk

Why gists_list_public needs a policy

This tool retrieves or queries publicly available gist data without creating, modifying, deleting, or executing any operations. It is a read-only operation with minimal security risk, appropriate for low severity classification.

From the tool's definition Tool name 'gists_list_public' and description 'List public gists' indicate data retrieval with no modification. The action is a query/list operation on already-public data.

Documented attack patterns abuse exactly the kind of access gists_list_public gives an agent:

POLICY

How to control gists_list_public

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

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "gists_list_public": {}
  }
}

gists_list_public 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 TypeSpec 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

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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 gists_list_public

What does the gists_list_public tool do? +

List public gists. It is categorised as a Read tool in the TypeSpec MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on gists_list_public? +

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

What risk level is gists_list_public? +

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

Can I rate-limit gists_list_public? +

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

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

gists_list_public is provided by the TypeSpec MCP Server MCP server (microsoft/typespec-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every TypeSpec MCP Server tool call.

Start from TypeSpec 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 →