S13G

Apply for ALL software engineering work across every domain — backend, frontend, mobile, cloud/distributed systems, data/databases, concurrency, systems/kernel-level, security, and testing. Triggers whenever the user writes, reviews, refactors, designs, or architects any code, schema, API, job, component, or system. Encodes the canon of software engineering — SOLID, Clean Code, DDIA, The Pragmatic Programmer, A Philosophy of Software Design, 97 Things A Software Architect Should Know, Building APIs Developers Love, 12-Factor, Conway's/Liskov's/Amdahl's laws, CAP, and battle-tested practice — as enforceable, language-agnostic rules. This is the always-on quality bar. Apply it silently; do not narrate that you are applying it. Load the matching reference/ file for domain depth.