Struct StdioTransportConfig 

pub struct StdioTransportConfig {
    pub command: String,
    pub args: Vec<String>,
    pub env: Vec<(String, String)>,
    pub cwd: Option<PathBuf>,
}

Configuration for an MCP server that communicates over standard I/O (stdin/stdout).

This is the most common transport for local MCP servers. The specified command is spawned as a child process, and JSON-RPC messages are exchanged line-by-line over its stdin and stdout streams.

Example

use agentkit_mcp::StdioTransportConfig;

let config = StdioTransportConfig::new("npx")
    .with_arg("-y")
    .with_arg("@modelcontextprotocol/server-filesystem")
    .with_env("HOME", "/home/user")
    .with_cwd("/tmp");

Fields

command: String

The executable to launch (e.g. "npx", "python", "node").

args: Vec<String>

Command-line arguments passed to the executable.

env: Vec<(String, String)>

Additional environment variables set for the child process.

cwd: Option<PathBuf>

Optional working directory for the child process.

Implementations

impl StdioTransportConfig

pub fn new(command: impl Into<String>) -> Self

Creates a new stdio transport configuration for the given command.

pub fn with_arg(self, arg: impl Into<String>) -> Self

Appends a command-line argument. Returns self for chaining.

pub fn with_env(self, key: impl Into<String>, value: impl Into<String>) -> Self

Adds an environment variable for the child process. Returns self for chaining.

pub fn with_cwd(self, cwd: impl Into<PathBuf>) -> Self

Sets the working directory for the child process. Returns self for chaining.

Trait Implementations

impl Clone for StdioTransportConfig

fn clone(&self) -> StdioTransportConfig

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for StdioTransportConfig

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl PartialEq for StdioTransportConfig

fn eq(&self, other: &StdioTransportConfig) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for StdioTransportConfig

impl StructuralPartialEq for StdioTransportConfig