Repeatability
High
Circuit breaker implementation follows a well-established structural pattern: annotate service calls, configure beans, define fallbacks, write WireMock or MockServer integration tests. The same pattern repeats across all four API integrations with minor variation.
Ambiguity Tolerance
Medium
The deliverables are concrete — four circuit-breaker configurations, fallback methods, and integration tests — but threshold values (failure rate %, wait duration, timeout ms) require domain-specific SLA knowledge the task description doesn't fully supply. An agent must either make reasonable defaults explicit or ask for them.
Data & Tool Availability
Medium
The agent needs access to the existing codebase, build files, and any existing API client classes to wire things correctly. Without repo access, it can produce correct template code but cannot guarantee it compiles against the actual service structure.
Error Cost
Medium
Misconfigured circuit breakers (e.g., thresholds too aggressive) could cause unnecessary open-circuit states in production, degrading availability. However, the work is code-reviewed before deployment and integration tests provide a safety net, making the risk manageable and reversible.
Human Judgment Required
Low
Resilience4j configuration is largely mechanical and well-documented. Fallback strategy design (return cached data, return empty response, throw specific exception) follows standard patterns. A senior engineer should review threshold choices, but the implementation itself doesn't require intuition or taste.