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hackerone-mcp

hackerone-mcp

by AxiomSec
OverviewSchemaSourceRelated ServersDiscussionsAdmin
Python
Local

list_programs

Retrieve all HackerOne programs your account can access. Use compact mode for a concise list or count_programs for totals.

Instructions

List all HackerOne programs your account can access.

The full list is large; pass compact=true to get just handle/name/offers_bounties/submission_state/state per program, which stays well under the response size limit. For just totals, use count_programs instead.

Tool call template

This tool declares no required parameters. Add optional parameters from the input schema as needed.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {},
    "name": "list_programs"
  }
}

Input Schema

NameRequiredDescriptionDefault
compactNo
refreshNo

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv0.1.0

TDQS

A4.4/5.0
Behavior4/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

Discloses that the full list is large and compact reduces response size. No annotations exist, so description carries the burden well, though it omits stating it's read-only.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

Two sentences, no fluff, front-loaded with main purpose. Every sentence adds value.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Covers purpose, usage, and one parameter. Lacks explanation of refresh parameter and response format, but for a simple list tool, it's largely sufficient.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Explains compact parameter in detail (what fields it returns and size benefit), but refresh parameter is left unexplained. Schema coverage is 0%, so description partially compensates.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

Description clearly states 'List all HackerOne programs your account can access' – a specific verb and resource. It also distinguishes from sibling 'count_programs'.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines5/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

Explicitly suggests using compact=true for large lists and directs to count_programs for totals, providing clear when-to-use guidance.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

Deploy Server

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