Overview

What

Adds a remoteSession / remote_session / RemoteSession field to both SessionConfig and ResumeSessionConfig across all SDK languages (Rust, Go, Node.js, Python, .NET), giving SDK clients explicit per-session control over remote behavior.

Why

The runtime added support for a remoteSession parameter on session.create and session.resume in copilot-agent-runtime#7673, but the SDK hand-written types were never updated to expose it. The RemoteSessionMode type already exists in each SDK's generated types, so this wires it into the session config structs and create/resume payloads.

Changes

• Rust (rust/src/types.rs) — Added remote_session: Option<RemoteSessionMode> field, Debug output, Default value, and with_remote_session() builder method to both SessionConfig and ResumeSessionConfig.
• Go (go/types.go, go/client.go) — Added RemoteSession field to SessionConfig, ResumeSessionConfig, and wire request structs; wired into create/resume payloads.
• Node.js (nodejs/src/types.ts, nodejs/src/client.ts, nodejs/src/index.ts) — Added remoteSession?: RemoteSessionMode to SessionConfig interface (picked into ResumeSessionConfig); wired into both payloads; exported the type.
• Python (python/copilot/client.py) — Added remote_session: RemoteSessionMode | None parameter to create_session and resume_session; wired into payloads using .value for wire serialization.
• .NET (dotnet/src/Types.cs, dotnet/src/Client.cs) — Added RemoteSession property to both config classes and clone constructors; added to wire records; wired into create/resume calls.

Usage

// Rust
let config = SessionConfig::new(session_id)
    .with_remote_session(RemoteSessionMode::Export);

// Go
config := copilot.SessionConfig{
    RemoteSession: rpc.RemoteSessionModeExport,
}

// Node.js
const session = await client.createSession({
    remoteSession: "export",
});

# Python
from copilot.generated.rpc import RemoteSessionMode
session = await client.create_session(
    remote_session=RemoteSessionMode.EXPORT,
)

// .NET
var config = new SessionConfig { RemoteSession = RemoteSessionMode.Export };

Downstream

This unblocks github/github-app#4914 which needs to set remoteSession: "export" for all sessions.