Writing and editing are different skills, and most developers are much better at one than the other. Writing is generative — starting from nothing, producing something. Editing is evaluative — starting from something, making it better. In agentic programming, the agent handles a significant portion of the writing. The developer's primary job becomes editing, and that shift requires a different cognitive posture than most developers have been trained to adopt.

The author's posture is creative and forward-looking. You're making decisions, generating options, building toward something that doesn't exist yet. The editor's posture is critical and precise. You're reading carefully, finding what's wrong, making targeted improvements, knowing when to cut and when to keep. Good editors are disciplined about not rewriting what doesn't need rewriting — they intervene where intervention adds value and leave the rest alone.

Applied to agent output, this means developing the ability to read critically without rewriting reflexively. The agent produces a draft. The instinct, especially for developers who are good writers, is to rewrite it in their own voice. Sometimes that's right. Often it's unnecessary — the draft is fine, the prose is clear, the rewrite would produce something different but not better. The editor's discipline is to distinguish between what needs changing and what just isn't how you would have written it.

The skill that separates good editors from bad ones is knowing what they're editing for. Not for personal style, not for comprehensiveness, not for the pleasure of revision — for the specific outcome the piece needs to achieve. Every change should have a reason: this was wrong, this was unclear, this was missing, this was redundant. Changes without reasons are noise.

For developers, this means bringing the same rigor to reviewing agent output that good editors bring to prose. Not "I would have done this differently" but "this doesn't achieve the goal because..." Not stylistic preference but functional judgment. The agent wrote it. You're responsible for it. Edit accordingly.

The author produces the draft. The editor produces the work.