Summary
- Document significant technical decisions with structured context, rationale, and consequences.
- Provides five template formats (standard MADR, lightweight, Y-statement, deprecation, RFC-style) covering different decision complexity levels and team preferences Includes lifecycle management patterns for proposed, accepted, deprecated, and superseded decisions with clear status tracking Offers directory structure, indexing strategies, and automation tools (adr-tools) for maintaining ADR repositories at scale Covers review processes, best practices, and migration patterns for deprecating or superseding previous architectural choices