Liú Tuì 劉蛻 (?–868, zì Fùyú 復愚, hào Wénquánzǐ 文泉子), of Chángshā 長沙 (Húnán) by his self-preface — though Wáng Dìngbǎo’s Táng zhāiyán records him as of Shāngzhōu, and Sūn Guāngxiàn’s Běimèng suǒyán gives a different Tónglú Liú Tuì — biographical record unsettled, possibly with homonyms. Jìnshì of Dàzhōng 4 (850); rose under Xiántōng (860–874) to Zuǒ shíyí (Reminder of the Left); demoted as Huáyīn lìng after impeaching Lìnghú Tāo’s son Lìnghú Hào 令狐滈 for trading on his father’s power and accepting bribes (recorded in Jiù Tángshū Lìnghú Chǔ zhuàn).
Liú is the canonical exemplar of the obscurer xiǎnjué gǔwén school of the WǎnTáng — representing a stylistic position between Sūn Qiáo 孫樵 and Fán Zōngshī 樊宗師. His prose deliberately roots in Yáng Xióng (the Tàixuán-style archaism). The Wén zhǒng míng 文冢銘 (Inscription for the Tomb of My Writings) — composed when Liú gathered his unsuccessful drafts and ceremonially “buried” them — became the canonical model for later writers’ similar self-purgation rituals (Sū Shì’s Wénbēi míng, etc.).
Principal work in the corpus: Wénquánzǐ jí KR4c0080 — originally 10 juǎn (per Liú’s self-preface), now reduced to 1 juǎn of late-Míng (Hán Xī, 1640) recovery from anthological sources. CBDB id 190147 gives ?–868.