Low Risk

list_programs

List bug bounty programs you have access to on HackerOne. Auto-paginates to return all programs.

How to control list_programs ↓

AI agents call list_programs to retrieve information from HackerOne MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

Low Risk

This tool retrieves and lists program data without modifying it. It is a classic Read operation—specifically a list/query function that returns information about programs the user has access to. There are no side effects, no data modification, and no external actions triggered. The auto-pagination feature is a retrieval enhancement, not a modification capability.

From the tool's definition Tool name 'list_programs' and description 'List bug bounty programs you have access to' indicate a retrieval operation. The server description emphasizes 'read-only access' and the tool description contains no language suggesting mutation or side effects.

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

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

policy.json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "list_programs": {}
  }
}

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

  1. Create a free account and register HackerOne MCP Server — nothing to install.
  2. Add this policy — paste it, or build it visually.
  3. Point your MCP client (Claude, Cursor, anything) at your gateway URL.
CAP THIS TOOL →

Free to start. No card required.

Go deeper

What does the list_programs tool do? +

List bug bounty programs you have access to on HackerOne. Auto-paginates to return all programs. It is categorised as a Read tool in the HackerOne MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on list_programs? +

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

What risk level is list_programs? +

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

Can I rate-limit list_programs? +

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

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

list_programs is provided by the HackerOne MCP Server MCP server (sicks3c/hackerone-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every HackerOne MCP Server tool call.

Deterministic rules across all 16 HackerOne MCP Server tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.

Free to start. No card required.

16 HackerOne MCP Server tools catalogued and risk-classified — across an index of 42,500+ MCP servers.

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