Method create_user_message

crates/opencode-session/src/prompt.rs:172–261

(
        &self,
        input: &PromptInput,
        session: &mut Session,
    )

    }

    pub async fn create_user_message(
        &self,
        input: &PromptInput,
        session: &mut Session,
    ) -> anyhow::Result<()> {
        // Collect text parts for the primary message
        let text = input
            .parts
            .iter()
            .filter_map(|p| match p {
                PartInput::Text { text } => Some(text.clone()),
                _ => None,
            })
            .collect::<Vec<_>>()
            .join("\n");

        let has_non_text = input
            .parts
            .iter()
            .any(|p| !matches!(p, PartInput::Text { .. }));

        if text.is_empty() && !has_non_text {
            return Err(anyhow::anyhow!("No content in prompt"));
        }

        let project_root = session.directory.clone();

        // Create the user message with text (or empty if only non-text parts)
        let msg = if text.is_empty() {
            session.add_user_message(" ")
        } else {
            session.add_user_message(&text)
        };

        // Add non-text parts to the message
        for part in &input.parts {
            match part {
                PartInput::Text { .. } => {} // already handled above
                PartInput::File {
                    url,
                    filename,
                    mime,
                } => {
                    self.add_file_part(
                        msg,
                        url,
                        filename.as_deref(),
                        mime.as_deref(),
                        &project_root,
                    )
                    .await;
                }
                PartInput::Agent { name } => {
                    msg.add_agent(name.clone());
                    // Add synthetic text instructing the LLM to invoke the agent
                    msg.add_text(format!(
                        "Use the above message and context to generate a prompt and call the task tool with subagent: {}",
                        name