Career & Craft
Agile
An iterative approach to building software in small increments with frequent feedback, favouring working software and adaptation over big up-front plans (the Agile Manifesto). It reduces the risk of building the wrong thing. In practice its value depends entirely on execution — cargo-culted rituals without the underlying mindset deliver very little.
Purpose
Agile is an approach to building software in small increments with fast feedback, crystallised by the Agile Manifesto: working software over comprehensive documentation, responding to change over following a plan. Its core bet is that learning from real users beats predicting them — so ship small, learn, adjust.
When to Use It
Product development under uncertainty — which is most software: requirements will change once users touch the thing, so the process should expect it. Short iterations, continuous delivery and tight feedback loops are agile regardless of what ceremonies surround them.
Trade-offs
The manifesto's values are routinely inverted in practice: rituals without the mindset ('we do standups, therefore we are agile'), sprint theatre replacing actual iteration, and process tools becoming the work. Agile done as cargo cult costs the meetings and delivers none of the learning.
Implementation
Work in small, releasable slices; get real feedback each cycle and let it change the plan; keep the delivery pipeline fast enough that shipping is routine. Retrospect honestly — the one ceremony that improves the others — and measure success by outcomes delivered, not points burned.