Copilot SDK lifecycle events

gistfile1.txt

    type: "session.start";
    type: "session.resume";
    type: "session.error";
    type: "session.idle";
    type: "session.title_changed";
    type: "session.info";
    type: "session.warning";
    type: "session.model_change";
    type: "session.mode_changed";
    type: "session.plan_changed";
    type: "session.workspace_file_changed";
    type: "session.handoff";
    type: "session.truncation";
    type: "session.snapshot_rewind";
    type: "session.shutdown";
    type: "session.context_changed";
    type: "session.usage_info";
    type: "session.compaction_start";
    type: "session.compaction_complete";
    type: "session.task_complete";
    type: "user.message";
    type: "file";
    type: "directory";
    type: "selection";
    type: "github_reference";
    type: "pending_messages.modified";
    type: "assistant.turn_start";
    type: "assistant.intent";
    type: "assistant.reasoning";
    type: "assistant.reasoning_delta";
    type: "assistant.streaming_delta";
    type: "assistant.message";
    type: "assistant.message_delta";
    type: "assistant.turn_end";
    type: "assistant.usage";
    type: "abort";
    type: "tool.user_requested";
    type: "tool.execution_start";
    type: "tool.execution_partial_result";
    type: "tool.execution_progress";
    type: "tool.execution_complete";
    type: "text";
    type: "terminal";
    type: "image";
    type: "audio";
    type: "resource_link";
    type: "resource";
    type: "skill.invoked";
    type: "subagent.started";
    type: "subagent.completed";
    type: "subagent.failed";
    type: "subagent.selected";
    type: "subagent.deselected";
    type: "hook.start";
    type: "hook.end";
    type: "system.message";
    type: "permission.requested";
    type: "permission.completed";
    type: "user_input.requested";
    type: "user_input.completed";
    type: "elicitation.requested";
    type: "object";
    type: "elicitation.completed";
    type: "external_tool.requested";
    type: "external_tool.completed";
    type: "command.queued";
    type: "command.completed";
    type: "exit_plan_mode.requested";
    type: "exit_plan_mode.completed";