v0.1.33-preview.0

Feature: pre-select a custom agent at session creation

You can now specify which custom agent should be active when a session starts, without needing a separate session.rpc.agent.select() call. (#722)

const session = await client.createSession({
  customAgents: [
    { name: "researcher", prompt: "You are a research assistant." },
    { name: "editor", prompt: "You are a code editor." },
  ],
  agent: "researcher",  // active agent at session start
  onPermissionRequest: approveAll,
});

var session = await client.CreateSessionAsync(new SessionConfig {
    CustomAgents = [
        new CustomAgentConfig { Name = "researcher", Prompt = "You are a research assistant." },
        new CustomAgentConfig { Name = "editor", Prompt = "You are a code editor." },
    ],
    Agent = "researcher",  // active agent at session start
});

Feature: custom model listing for BYOK

Applications using bring-your-own-key providers can now supply onListModels in client options to override client.listModels() with their own model list, instead of forwarding the call to the CLI. (#730)

const client = new CopilotClient({ onListModels: () => myProviderModels });

var client = new CopilotClient(new CopilotClientOptions {
    OnListModels = () => Task.FromResult(myProviderModels)
});

• Python: on_list_models=lambda: my_provider_models
• Go: OnListModels: func(ctx context.Context) ([]copilot.ModelInfo, error) { return myModels, nil }

Feature: new events and APIs (system notifications, session log, extension support)

Updated to match the latest CLI runtime, adding: system.notification events, a session log RPC API, reasoningEffort changes after model switch, alreadyInUse flag on sessions, and the groundwork for extension-based integrations. (#737)

Other changes

• feature: add no-result permission outcome so extensions can attach to sessions without actively answering permission requests (#802)
• bugfix: fix race condition where events emitted during session creation (e.g. session.start) could be dropped; also adds OnEvent catch-all handler to SessionConfig (#664)
• improvement: [C#] optional RPC params are now represented as optional C# method params for forward-compatible generated code (#733)
• bugfix: [C#] fix codegen for discriminated unions nested within other types (#736)
• improvement: [C#] emit XML doc comments from schema descriptions in generated RPC code (#724)
• improvement: [C#] use lazy property initialization in generated RPC classes (#725)
• improvement: [C#] add DebuggerDisplay attribute to SessionEvent for easier debugging (#726)
• improvement: [.NET] add NuGet package icon (#688)
• bugfix: [Node] don't resolve cliPath when cliUrl is already set (#787)

New contributors

• @sergiou87 made their first contribution in #787
• @kirankashyap made their first contribution in #740

Generated by Release Changelog Generator

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