Architecture Decision Records

Capture architectural decisions as they happen during coding sessions. Instead of decisions living only in Slack threads, PR comments, or someone's memory, this skill produces structured ADR documents that live alongside the code.

When to Activate

• User explicitly says "let's record this decision" or "ADR this"
• User chooses between significant alternatives (framework, library, pattern, database, API design)
• User says "we decided to..." or "the reason we're doing X instead of Y is..."
• User asks "why did we choose X?" (read existing ADRs)
• During planning phases when architectural trade-offs are discussed

ADR Format

Use the lightweight ADR format proposed by Michael Nygard, adapted for AI-assisted development:

# ADR-NNNN: [Decision Title]