Function truncate_string_for_session_view

src/apps/desktop/src/api/agentic_api.rs:426–453

(text: &str, remaining_budget: &mut usize)

}

fn truncate_string_for_session_view(text: &str, remaining_budget: &mut usize) -> Option<String> {
    let char_count = text.chars().count();
    let available = SESSION_VIEW_TOOL_RESULT_STRING_CHAR_LIMIT.min(*remaining_budget);

    if char_count <= available {
        *remaining_budget = remaining_budget.saturating_sub(char_count);
        return None;
    }

    let omitted_chars = SESSION_VIEW_OMITTED_MARKER.chars().count();
    if available <= omitted_chars {
        *remaining_budget = remaining_budget.saturating_sub(omitted_chars.min(*remaining_budget));
        return Some(SESSION_VIEW_OMITTED_MARKER.to_string());
    }

    let suffix_chars = SESSION_VIEW_TRUNCATED_MARKER.chars().count();
    if available <= suffix_chars {
        *remaining_budget = remaining_budget.saturating_sub(omitted_chars.min(*remaining_budget));
        return Some(SESSION_VIEW_OMITTED_MARKER.to_string());
    }

    let keep_chars = available - suffix_chars;
    let mut preview = text.chars().take(keep_chars).collect::<String>();
    preview.push_str(SESSION_VIEW_TRUNCATED_MARKER);
    let preview_chars = preview.chars().count();
    *remaining_budget = remaining_budget.saturating_sub(preview_chars);
    Some(preview)
}

fn compact_json_for_session_view(value: &mut serde_json::Value, remaining_budget: &mut usize) {
    match value {