architecture-decision-records
Architecture Decision Records
Overview
Use this skill to make architecture decisions auditable, reversible when possible, and maintainable as constraints evolve.
Scope Boundaries
- A technical decision changes long-term system direction.
- Multiple viable options exist and trade-offs must be explicit.
- Teams need a durable rationale for future reviewers.
Core Judgments
- Decision scope: what is affected and what is intentionally out of scope.
- Option set quality: whether alternatives are truly viable.
- Reversibility: cost and risk if the decision is later changed.
- Expiry/revisit trigger: what future signal should force reevaluation.
Practitioner Heuristics
- Record decisions at the same abstraction level as the problem; avoid mixing architecture and local code style debates.
- Rejected options are as important as selected ones for future context.
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