Perform a READ-ONLY, whole-repo architecture review of the provided repository: {{Context:if used in an AI agent use the current project}}. Review Focus: {{Focus: Comprehensive, Fit and Boundaries, Execution and Data Flow, Quality Levers, Simplification Opportunities}} Do not modify files. Do not invent or speculate about files that do not exist. Ground every claim in concrete paths and code excerpts with line ranges. GOAL - Assess how well the current architecture fits the problem the code claims to solve. - Identify simplifications and refactors that reduce surface area without loss of functionality. - Propose a target architecture and a minimal, low-risk migration path. CONSTRAINTS - Cite: Use the exact format path:line-start-line-end for every finding. - Distinguish Facts (observed) vs Inferences (reasoned). - Prefer the smallest effective change that achieves the goal. - Do not run external services or mutate the repo. SCOPE - Include source code, tests, scripts, infra-as-code, build/CI, container files, configs, schemas, migrations, and docs. - Detect and list all languages and frameworks present. METHOD 1) Inventory - List modules, packages, services, binaries, CLIs, lambdas, and jobs. - Build a dependency map: in-repo imports, cross-service calls, third-party libs. - Detect data stores and message buses; list schemas, migrations, and ORMs. 2) Fit and boundaries - Identify logical domains and current boundaries. - Rate cohesion and coupling per boundary. - Flag "god" modules, cyclic deps, and feature leakage across layers. 3) Execution and data flow - Trace 3-5 key user journeys or API calls end to end. - For each: entry -> validation -> business rules -> I/O -> errors -> logging -> exit. 4) Quality levers - Error handling and resilience: timeouts, retries, idempotency, backoff. - Configuration: 12-factor, env vs code, secrets management. - Observability: logs, metrics, traces, structured context propagation. - State and concurrency: shared mutability, locking, async patterns. - Performance hotspots: N+1, large JSON, sync I/O on hot paths. - Security: secrets, authN/authZ, input validation, injection, SSRF, deserialization. - Testing strategy: unit vs integration vs e2e, flakiness, coverage of critical paths. - Build/CI/CD: determinism, caching, artifact versioning and promotion. 5) Simplification opportunities - Collapse layers that add no invariants. - Replace custom frameworks with well-known libraries. - Extract tight clusters into modules; inline trivial wrappers. - Delete unused code, flags, endpoints, migrations. - Consolidate duplicate models/DTOs and error types. - Normalize naming and directory structure. 6) Target architecture - Propose thin, explicit module/service boundaries. - Define minimal contracts: interfaces, DTOs, events. - Specify a "golden path" for a request and a background job. 7) Migration plan - Phased steps with acceptance checks. - Risk, blast radius, and rollback for each phase. - Success metrics: latency, error rate, cyclomatic complexity, bundle size, build time. HEURISTICS & SMELLS CHECKLIST - Cyclic imports; implicit singletons; wide constructors; global mutable state. - Overuse of DI or service locators. - Anemic domain model or business logic leaking into controllers/ORM models. - Fat util packages; duplicate validation or business rules. - N+1 DB queries; chatty network calls; sync I/O in request paths. - Feature flags never removed; dead code and endpoints. - Tests asserting implementation details rather than behavior. - Secrets in code; permissive CORS; missing authZ checks. - CI without pinned versions; non-reproducible builds. OUTPUT FORMAT (use every section; keep tight and sourced) A) Repo Overview - Stack summary - Module map - Runtime components B) Dependency Graph (text tree) - Intra-repo and key third-party deps - Cycles found C) Architectural Assessment - What works - What does not work - Top 10 risks (ranked) D) Simplification Opportunities (ranked) For each: - Name - Current state (Facts) with citations (path:line-start-line-end) - Proposed change - Expected impact (perf, reliability, complexity) - Risk level and effort (S/M/L) E) Target Architecture (concise) - Boundaries and contracts - Golden path sequence (request) - Golden path sequence (background job) F) Migration Plan - Phase 0: Baseline metrics to capture - Phase 1..N: Steps -> acceptance criteria -> rollback G) Metrics to Track - Example formulas and how to measure in this repo H) Appendix - Findings index: finding -> citations - Unused/dead code list - Glossary of key types, tables, and events CITATION RULES - Every non-obvious statement requires at least one citation. - Use multiple citations when a claim spans files or layers. - Quote short excerpts when helpful. Keep quotes under 25 words. Prefix with > and include a citation line. TRACE TEMPLATES - Finding: - Fact: (path:line-line) - Inference: - Journey Trace: - Entry: (path:line-line) - Validation: (path:line-line) - Business rules: (path:line-line) - I/O: (path:line-line) - Errors: (path:line-line) - Logging: (path:line-line) - Exit: (path:line-line) QUICK COMMANDS (suggested repo ops; adapt to tooling available) - List large files and hotspots. - Detect duplicate code and cycles. - Map import graph per package. - Grep for TODO/FIXME, feature flags, and unused exports. START - Print "Inventory" first with module map and detected entry points. - Then proceed in order. Stop if repo is too large; sample representative modules and note the sampling method.

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