Method execute

crates/chat-cli/src/cli/chat/cli/tangent.rs:50–171

(self, os: &Os, session: &mut ChatSession)

    }

    pub async fn execute(self, os: &Os, session: &mut ChatSession) -> Result<ChatState, ChatError> {
        // Check if tangent mode is enabled
        if !ExperimentManager::is_enabled(os, ExperimentName::TangentMode) {
            execute!(
                session.stderr,
                StyledText::error_fg(),
                style::Print("\nTangent mode is disabled. Enable it with: q settings chat.enableTangentMode true\n"),
                StyledText::reset(),
            )?;
            return Ok(ChatState::PromptUser {
                skip_printing_tools: true,
            });
        }

        match self.subcommand {
            Some(TangentSubcommand::Tail) => {
                // Check if checkpoint is enabled
                if ExperimentManager::is_enabled(os, ExperimentName::Checkpoint) {
                    execute!(
                        session.stderr,
                        StyledText::warning_fg(),
                        style::Print(
                            "⚠️ Checkpoint is disabled while in tangent mode. Please exit tangent mode if you want to use checkpoint.\n"
                        ),
                        StyledText::reset(),
                    )?;
                }
                if session.conversation.is_in_tangent_mode() {
                    let duration_seconds = session.conversation.get_tangent_duration_seconds().unwrap_or(0);
                    session.conversation.exit_tangent_mode_with_tail();
                    Self::send_tangent_telemetry(os, session, duration_seconds).await;

                    execute!(
                        session.stderr,
                        StyledText::secondary_fg(),
                        style::Print("Restored conversation from checkpoint ("),
                        StyledText::warning_fg(),
                        style::Print("↯"),
                        StyledText::secondary_fg(),
                        style::Print(") with last conversation entry preserved.\n"),
                        StyledText::reset(),
                    )?;
                } else {
                    execute!(
                        session.stderr,
                        StyledText::error_fg(),
                        style::Print("You need to be in tangent mode to use tail.\n"),
                        StyledText::reset(),
                    )?;
                }
            },
            None => {
                if session.conversation.is_in_tangent_mode() {
                    let duration_seconds = session.conversation.get_tangent_duration_seconds().unwrap_or(0);
                    session.conversation.exit_tangent_mode();
                    Self::send_tangent_telemetry(os, session, duration_seconds).await;

                    execute!(