Minimalist Architecture
DRY removes repeated knowledge. KISS keeps the shape of the solution understandable. YAGNI keeps speculative architecture from growing faster than the actual requirement.
These principles are not about making code tiny for its own sake. They are about keeping a system easier to read, easier to change, and easier to ship.
Minimal Notes
- DRY gives one source of truth.
- KISS prefers the simplest direct path that works.
- YAGNI cuts unused abstraction before it becomes permanent overhead.
Lab 3.1: Structural De-duplication
Move the stream validation and hashing pipeline into one shared helper so both uploaders inherit the same safety rule.
Duplication Mutation Engine
Exercise 3.1: Structural De-duplication
Analyzer idle
Extract shared stream validation and hashing so both uploaders inherit one safety rule.
Architecture Signals
Buffer limitduplicated in two uploaders
Checksum flowduplicated in two uploaders
Validation Trace
- Edit the code, then run the architecture check.
Lab 3.2: Pruning Speculative Scope
Reduce the overbuilt feature-flag stack to a direct synchronous checker that matches the current team size and current need.
Speculative Scope Pruner
Exercise 3.2: YAGNI & KISS
Analyzer idle
Reduce an overbuilt feature flag service to the immediate synchronous configuration path.
Architecture Signals
gRPC streamingunused for single team
Redis poolingspeculative layer
Plugin registryfuture-proofing cost
Validation Trace
- Edit the code, then run the architecture check.