This article reports an action research project carried out with university students in the course Introduction to Philosophy. The aim was to improve comprehension of philosophical texts and critical thinking through epistemic-oriented monograph writing. The pedagogical intervention, grounded in epistemic writing as knowledge construction through reading and reflective argumentation, unfolded in three phases: diagnosis, implementation, and evaluation. Activities included guided reading, monograph writing, peer assessment, and formative feedback. Results showed marked improvement in synthesis, argumentation, and conceptual reconstruction, confirming that well-guided monograph writing activates the epistemic function of writing and fosters meaningful learning. Collaborative reflection enhanced self-regulation, metacognitive awareness, and ownership of philosophical discourse. The study also calls for critical and ethical use of artificial intelligence as a support tool, warning against cognitive dependency. Overall, the strategy proved relevant and replicable for strengthening academic literacy and philosophical thinking in higher education.