The short version
A decision without its rationale is a weak memory. Future colleagues and agents need the evidence, trade-offs, assumptions, and reconsideration trigger that made the choice sensible at the time.
Record reasoning, not hidden deliberation
The goal is a concise, accountable decision record, not a transcript of every thought. Capture the information another person would need to judge whether the decision still applies.
Use four fields:
- Decision: what the team chose.
- Reason: the evidence or priority that drove the choice.
- Conditions: the assumptions and constraints under which it remains valid.
- Revisit trigger: the change that should reopen the question.
Why this improves AI assistance
An agent that finds only “Vendor A selected” can repeat the result but cannot test its relevance. A record that explains that implementation time outweighed price, names the rejected alternative, and sets a cost or schedule threshold gives the agent a basis for comparison.
The agent can then ask whether the original constraint still exists and whether a trigger has been reached.
Where it helps
In finance, preserve why a variance was accepted and the materiality rule applied. In legal work, record the commercial reason and limits of a non-standard clause approval. In research, keep the strongest competing interpretation and unresolved uncertainty beside the conclusion.
These records reduce repeated reconstruction and prevent old decisions from turning into context-free precedent.
Quality rules
- Keep the record short enough to maintain.
- Cite the evidence or source location where appropriate.
- Name the owner of consequential assumptions.
- Avoid confidential detail that is unnecessary for future use.
- Review records when their trigger conditions change.
Try it
Choose one recent decision. Write a one-sentence result, then expand it with reason, conditions, and revisit trigger. Compare which version would help a new teammate make the next decision six months later.