Readyz & Self-Probe Development Cycle

When to use

• New service being created
• Service has external dependencies (DB, cache, queue, HTTP upstreams)
• Service lacks /readyz or has incomplete dependency checks
• Service missing startup self-probe, SaaS TLS enforcement, or metrics

Skip when

• Pure library package with no deployable service or HTTP server
• Task is documentation-only, configuration-only, or non-code
• Service has no external dependencies AND no network listeners
• CLI tool or batch job that does not serve HTTP traffic

You orchestrate. Agents implement. NEVER use Edit/Write/Bash on source files. All code changes go through Task(subagent_type="ring:backend-go") or Task(subagent_type="ring:backend-ts") (by language). TDD mandatory for all implementation gates (RED → GREEN → REFACTOR).