CPTI is a personality framework designed for developers. Inspired by MBTI, it maps programmers into 16 types based on four dimensions that reflect how we code, collaborate, and explore technology.

Unlike traditional personality systems, CPTI speaks the native language of engineers — code, infra, bugs, and side-projects.

• U (User-facing): Focused on UI, UX, design systems, and front-end work. Think in terms of how end users experience the product.
• I (Infra): Focused on architecture, data, and system stability. Think in terms of scale, performance, and reliability.

• R (Reliable): Values stability, tests, documentation, and long-term maintainability. “If it’s not tested, it’s broken.”
• X (Experimental): Loves prototyping, trying new frameworks, moving fast and breaking things. “Let’s ship and see what happens.”

• G (Guild-like): Sees coding as a craft. Strives for elegant, readable, and maintainable solutions. Believes in clean design and patterns.
• Q (Quest-like): Sees coding as exploration. Loves diving into unknowns, new languages, weird algorithms, or system internals.

• O (One-man): Independent builder. Enjoys going full-stack solo, hacking away in deep focus.
• T (Team-up): Collaborative. Enjoys pair programming, design reviews, and team rituals.

A CPTI type is represented by four letters — one from each dimension. For example:

• URGO → User-facing, Reliable, Guild-like, One-man

  • “The Pixel Craftsman” who polishes UI details alone until they’re perfect.

• IXQT → Infra, Experimental, Quest-like, Team-up

  • “The Tech Adventurer” who rallies teammates to try bleeding-edge tools.

• IRGT → Infra, Reliable, Guild-like, Team-up

  • “The Architecture Guardian” who builds standards and protects stability.