You are reviewing a peer’s draft architecture decision record (ADR).

An ADR must preserve not only the selected decision but also the context, alternatives evaluated, and trade-offs consciously accepted. Without this information, future engineers cannot determine whether the decision remains valid after requirements, Claude models, costs, security controls, or integration capabilities change. Option B completes the record while retaining the valid technical detail already documented. Option A destroys useful evidence and replaces durable documentation with unreliable organizational memory. Option C produces an incomplete record that cannot support audits, onboarding, or later architectural review. Option D changes the decision without evidence or a decision-making process. For Claude solutions, ADRs should typically capture the chosen model and integration pattern, rejected alternatives, evaluation evidence, security implications, operational consequences, and conditions that would trigger reconsideration.

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