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The lifecycle of PRDs

Why static PRDs are out of date as soon as they're saved

You finish the PRD, share it in Slack, and engineering starts building. Within a week, a customer call changes the priority. A design review surfaces a constraint you missed. A decision in standup contradicts paragraph four. The document is still open in three tabs — but nobody trusts it anymore.

The PRD was accurate on the day it was written. That was also the last day it was accurate.
— Every product team, eventually

Why static specs decay so fast

  • Discovery does not stop at handoff — feedback, experiments, and stakeholder input keep arriving.
  • Decisions happen in threads, meetings, and tickets, not in the doc where requirements live.
  • Updating a 15-page spec feels like rework, so teams patch around it with side conversations.
  • Nobody owns keeping the document current once engineering has started.

What teams lose when the PRD goes stale

The document says

  • Scope from last Tuesday's planning session
  • Success metrics chosen before the prototype
  • Requirements that predate the architecture review
  • Open questions that were answered elsewhere

The team actually knows

  • What changed in Slack after the doc was shared
  • Which trade-offs were made in standup
  • Why eng scoped down the first milestone
  • What the PM told sales on a customer call

The fix is not "write better PRDs"

More detail does not solve decay — it accelerates it. A longer spec has more surface area to contradict reality. The problem is not the template. It is treating the PRD as a one-time export instead of a view on living product reasoning.

What living specs look like in practice

  1. 1

    Capture decisions where they happen

    Log choices with the context and alternatives — not as a post-hoc summary buried in a doc footer.

  2. 2

    Link requirements to evidence

    Every major requirement should trace back to feedback, research, or a decision record — so updates have a clear trigger.

  3. 3

    Generate snapshots, do not maintain them

    Treat the PRD as an output of current thinking, regenerated when context changes — not a file someone has to remember to edit.

  4. 4

    Make drift visible

    When a decision contradicts the spec, surface the gap — do not let silent divergence become the default.

Keep specs connected to live reasoning

Prodigent captures decisions, feedback, and context as your initiative evolves — then generates snapshots and PRDs from what your team actually knows right now.

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