Enum McpServerConfig 

#[non_exhaustive]
pub enum McpServerConfig {
    Stdio(McpStdioServerConfig),
    Http(McpHttpServerConfig),
    Sse(McpHttpServerConfig),
}

Configuration for a single MCP server.

MCP (Model Context Protocol) servers expose external tools to the agent. Local servers run as a subprocess over stdio; remote servers speak HTTP or Server-Sent Events.

Serialized as a JSON object with a type discriminator ("stdio" | "http" | "sse").

Example

let mut servers = HashMap::new();
servers.insert(
    "playwright".to_string(),
    McpServerConfig::Stdio(McpStdioServerConfig {
        tools: vec!["*".to_string()],
        command: "npx".to_string(),
        args: vec!["-y".to_string(), "@playwright/mcp".to_string()],
        ..Default::default()
    }),
);
servers.insert(
    "weather".to_string(),
    McpServerConfig::Http(McpHttpServerConfig {
        tools: vec!["forecast".to_string()],
        url: "https://example.com/mcp".to_string(),
        ..Default::default()
    }),
);

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Stdio(McpStdioServerConfig)

Local MCP server launched as a subprocess and addressed over stdio. On the wire this serializes as {"type": "stdio", ...}. The CLI also accepts "local" as an alias on input.

Http(McpHttpServerConfig)

Remote MCP server addressed over HTTP.

Sse(McpHttpServerConfig)

Remote MCP server addressed over Server-Sent Events.

Trait Implementations

impl Clone for McpServerConfig

fn clone(&self) -> McpServerConfig

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for McpServerConfig

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for McpServerConfig

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for McpServerConfig

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.