By 1898, Alexei P. Skliarenko had joined the Russian Social Democratic Labor Party or RSDLP. In 1898-1903, he did field work for the party first in Tula and then in Harbin. By 1903, his work for the party took him to St. Petersburg. From 1905 to 1907, Skliarenko served on the Bureau of the RSDLP where he represented the Central Region of Saratov and where he also worked on the Samara committee of the RSDLP. In 1907, Skliarenko was both one of the 338 delegates to the 5th Congress of the Russian Social Democratic Labour Party and was also once again arrested and on this occasion he was exiled to Syktyvkar. In 1911, Skliarenko returned to St. Petersburg where he adopted the pen-name "Bosoi" and where he would write items for the Bolshevik newspapers "Zvezka" and "Pravda" as well as the journal "Prosveshchenie" ("Enlightenment").