AegisContractGuard: Autonomous API Drift Guard

Problem: In modern enterprise architectures, microservice APIs evolve continuously. Upstream breaking changes, such as altered response structures, removed fields, or new mandatory headers frequently break downstream clients silently in production. Resolving contract drift manually demands tedious triage across frontend and integration teams, slowing deployment cycles and risking production outages. Solution: AegisContractGuard is an autonomous integration agent orchestrated with IBM Bob that establishes a reliable, closed-loop API contract drift detection and self-healing lifecycle. When an upstream schema drifts, the agent automatically detects breaking modifications, establishes baseline truth, creates verifiable integration tests, and synthesizes an isolated client-side patch to restore full contract compatibility without human intervention. Target Users & Workflow: AegisContractGuard is designed for enterprise platform engineers, backend/API teams, and frontend integration developers. Rather than wrestling with manual troubleshooting, developers trigger AegisContractGuard in their CI/CD pipeline or orchestration workspace. The agent orchestrates three specialized subagents: 1. Subagent Alpha (Static Contract Diff): Analyzes OpenAPI specifications against existing client schemas alongside an independent runtime baseline runner. 2. Subagent Beta (Failure Formalization): Codifies the identified breakages into executable failing integration tests (failing.test.ts). 3. Subagent Gamma (Self-Healing Synthesis): Synthesizes precise client-side updates (updating TypeScript types, headers, and request models) until all regression tests pass. What Makes It Unique & Creative: - Strict Architectural Guardrails: AegisContractGuard strictly treats backend source code as read-only. Fixes are confined entirely to client boundaries, preventing unintended backend side-effects. - Evaluation Integrity: Unlike naive AI code generators that modify test assertions to force a false "pass", AegisContractGuard preserves baseline tests (client.test.ts) as immutable, failing before-evidence. It produces separate verification suites to maintain absolute audit transparency. - Full Audit Artifacts: Every decision, diff, and schema inspection is captured in structured Markdown session summaries for human-in-the-loop review. Efficiency & Results: AegisContractGuard demonstrates extreme determinism and cost efficiency. Operating inside IBM Bob, the entire closed-loop diagnostic, test creation, and self-healing patch workflow completed in a single iteration consuming only 2.73 Bobcoins with zero retries. AegisContractGuard transforms fragile enterprise API integrations into self-recovering, robust systems.