platform

System architecture for software products. Use when designing services, boundaries, data flow, trade-offs, ADRs, or reviewing whether a change fits the current architecture.

Application security engineering. Use when reviewing authn/z, secrets, threat models, dependency risk, or hardening APIs and infrastructure-as-code.

Quality engineering for software teams. Use when designing test strategy, regression suites, exploratory charters, release gates, or reproducing and isolating defects.