Struct McpConfig 

pub struct McpConfig {
    pub enabled: bool,
    pub allowed_origins: Vec<String>,
    pub discover_ttl_ms: Option<u64>,
    pub tools_list_ttl_ms: Option<u64>,
    pub task_poll_interval_ms: Option<u64>,
}

Model Context Protocol surface settings from [mcp].

The surface is DARK by default: with enabled = false (or the section absent) the /mcp route is not mounted and the path is a plain 404. An MCP endpoint hands a model the ability to start and cancel durable executions, so commissioning it is an explicit operator decision, never a side effect of upgrading.

allowed_origins is EMPTY by default and empty means “no browser origin”. A programmatic client sends no Origin header and is unaffected; a page in a browser always sends one, so the empty list refuses every browser-borne request. That is the DNS-rebinding defence the transport requires, and it is a real policy rather than an unset value.

Fields

enabled: bool

Whether the /mcp endpoint is mounted. Defaults to false.

allowed_origins: Vec<String>

Browser origins permitted to reach the MCP endpoint. Empty permits none.

discover_ttl_ms: Option<u64>

ttlMs on the server/discover result.

Defaults to DEFAULT_MCP_DISCOVER_TTL_MS when omitted and enabled = true, so switching the surface on does not force sizing two cache lifetimes first.

tools_list_ttl_ms: Option<u64>

ttlMs on the tools/list result. Defaults to DEFAULT_MCP_TOOLS_LIST_TTL_MS.

task_poll_interval_ms: Option<u64>

The pollIntervalMs advertised on a created task. Defaults to DEFAULT_MCP_TASK_POLL_INTERVAL_MS.

A hint to the client and nothing more: no server behaviour depends on it. There is no task lifetime beside it, because an MCP task here is a projection of a durable run and has nothing to expire.

Implementations

impl McpConfig

pub fn resolved(&self) -> ResolvedMcpConfig

Resolve every omitted knob to its default.

A zero poll interval resolves to the DEFAULT rather than to zero. Self::validate has already refused it on any loaded configuration, so this arm is reachable only from a hand-constructed config that skipped validation — and for that case a documented default is the safe direction, where a literal zero would be a busy loop.

Trait Implementations

impl Clone for McpConfig

fn clone(&self) -> McpConfig

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for McpConfig

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

Formats the value using the given formatter.

impl Default for McpConfig

fn default() -> McpConfig

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for McpConfig

where McpConfig: Default,

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for McpConfig

impl PartialEq for McpConfig

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for McpConfig