Preferring throwaway code over design docs

Role of design docs vs. throwaway code

• Many report rarely seeing design docs that actually guide implementation; some see them mostly as performative or for management.
• Others argue design docs are crucial for capturing goals, constraints, alternatives considered, and especially “why” certain choices were made.
• Several emphasize that code and design docs serve different purposes: protos prove feasibility; docs communicate intent, trade‑offs, and scope.

Value and risks of prototyping / “throwaway” code

• Strong support for prototypes as the fastest way to:
  • Discover unknown constraints, integration issues, and data problems.
  • Clarify requirements with stakeholders via “show, don’t tell.”
  • Learn new tools/technologies and de‑risk hard technical choices.
• Multiple people note that “throwaway” prototypes almost never get thrown away; they are frequently shipped or become the basis of production.
• Shipping prototypes can generate outsized business value quickly, but also long‑term tech debt that is hard to unwind.

Documentation, communication, and audience

• Design docs (or ADRs, technical analyses, whiteboard diagrams) are seen as:
  • Easier to review than large PRs.
  • More accessible to non‑developers, and better for alignment across teams.
  • Helpful for onboarding, architecture understanding, and future “code archaeology.”
• Others prefer rich draft PRs / issues as living design threads, with design docs treated as historical snapshots rather than always up to date.
• Several stress that good writing is hard; many design docs are unreadable or ignored without careful editing.

Planning, estimation, and project scale

• Some argue “how long will it take?” is inherently unknowable; time‑boxed discovery/prototyping is more honest.
• Others say timelines are unavoidable in B2B, competitive, or large‑product contexts; estimates drive prioritization and contracts.
• There’s broad agreement that:
  • Prototyping is better when technical unknowns dominate.
  • Design docs and up‑front planning are more critical for large, cross‑team, safety‑critical, or complex systems.

Hybrid and cultural considerations

• Many advocate a hybrid: sketch a design, prototype to learn, then refine and document a stable design.
• Organizational culture often:
  • Punishes “wasted” prototypes and rewards shipping, pushing prototypes into production.
  • Uses design docs for performance/promotion even when they’re weak engineering tools.
• Overall consensus: the real goal is deep thinking and shared understanding; whether that’s best achieved via docs, prototypes, or both is context‑ and team‑dependent.