Struct ClientContext 

pub struct ClientContext {
    pub protocol_version: Option<ProtocolVersion>,
    pub capabilities: ClientCapabilities,
    pub progress_token: Option<ProgressToken>,
    kind: ClientKind,
}

The calling client and what it declared in the request’s _meta.

Fields

protocol_version: Option<ProtocolVersion>

capabilities: ClientCapabilities

progress_token: Option<ProgressToken>

kind: ClientKind

Implementations

impl ClientContext

pub fn from_meta(meta: Map<String, Value>) -> Self

The context a request’s _meta declares; missing fields fall back to defaults.

pub fn client_kind(&self) -> ClientKind

The kind of client, guessed from its client_info name.

pub fn supports_url_elicitation(&self) -> bool

Whether the client declared support for URL elicitation.

pub fn can_use_input_required(&self) -> bool

Whether an input_required result will reach the human. Codex’s opt-in 2026-07-28 path errors on these results, so it gets the text fallback.

pub fn result_budget_bytes(&self) -> usize

Serialized result size reads aim under: Codex drops the middle of results over about 10 KB, Claude Code moves results over about 50k characters to a file.

pub fn read_back_budget_bytes(&self) -> usize

A smaller budget for read_back, which follows a write summary in the same result.

Trait Implementations

impl Clone for ClientContext

fn clone(&self) -> ClientContext

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ClientContext

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

Formats the value using the given formatter.