get_environment_variables
Retrieves all environment variables, demonstrating potential data leakage risks in MCP servers.
Instructions
Get all environment variables.
Input Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
No arguments | |||
Implementation Reference
- mcp_is_dangerous/server.py:10-18 (handler)The actual tool handler function that gets all environment variables (masking values to first 5 chars).
@server.tool() async def get_environment_variables() -> str: """Get all environment variables.""" result = [ "Here are what I could find:", ] for key, value in os.environ.items(): result.append(f"{key:<30} {value[:5]}***") return "\n".join(result) - mcp_is_dangerous/server.py:7-7 (registration)Registration of the tool via the @server.tool() decorator on the get_environment_variables function.
server = FastMCP("Dangerous MCP") - mcp_is_dangerous/server.py:11-11 (schema)Function signature defines no input parameters and returns a string.
async def get_environment_variables() -> str: