RC

Knowledge library

Articles

Engineering decisions, implementation notes, and operational field guides.

60 entries

PlaywrightCypressbrowser testing

Playwright vs Cypress: Choosing Browser Tests for Enterprise SPAs

A practical comparison of Playwright and Cypress for enterprise single-page applications, covering architecture, parallel execution, flake control, debugging, and governance requirements.

Harish KumarAug 28, 2026
prompt injectionLLM securitycode assistants

Hardening LLM Code Assistants Against Prompt Injection

A practical threat model and defense-in-depth guide for reducing prompt injection risk in AI pair-programming workflows while preserving human control over code, tools, and production changes.

Harish KumarAug 28, 2026
GitHub Actionscode reviewLLM

Architecting AI-Assisted Code Reviews with GitHub Actions

A practical architecture for adding LLM-assisted review to GitHub pull requests while controlling permissions, prompt injection, cost, comment noise, and developer latency.

Harish KumarAug 28, 2026
Next.jsAPI routesRoute Handlers

Practical Caching Strategies for Next.js API Routes

A practical guide to browser, CDN, and server-side caching for Next.js API routes and Route Handlers, including safe headers, invalidation patterns, and production tradeoffs.

Harish KumarAug 28, 2026
prompt engineeringenterprise AIAI risk management

Why Prompt Engineering Is Not an Enterprise AI Skill Strategy

Prompt techniques can improve individual outputs, but enterprise AI adoption depends on verification, workflow redesign, critical thinking, risk controls, and domain judgment. Here is a practical capability model for engineering leaders.

Harish KumarAug 25, 2026
microservicesdistributed monolithresilience

Why Your Microservices Architecture Became a Distributed Monolith

Excessive synchronous service calls can make independently deployed microservices fail and scale as one system. Learn how to identify runtime coupling, contain cascading failures, and incrementally introduce events, local read models, bulkheads, and sagas.

Harish KumarAug 22, 2026
domain APIsanti-corruption layerasynchronous messaging

How to Modernize Mainframe Integrations Without Exposing the Mainframe

A practical architecture for modernizing legacy financial systems with domain APIs, anti-corruption layers, asynchronous messaging, adapters, and stable contracts—without leaking mainframe records, protocols, or release constraints to consumers.

Harish KumarAug 21, 2026
AIROIEnterprise AI

How to Measure the Real ROI of Enterprise AI

A practical framework for proving enterprise AI value through counterfactual baselines, balanced operational metrics, total cost, risk-adjusted returns, and realized business outcomes.

Harish KumarAug 21, 2026
APILife InsurancePatterns

Practical REST APIs in Financial Services: Why Perfect REST Is Often Impractical

REST is a design philosophy, not a religion. In financial services, APIs have to survive legacy systems, long-running workflows, regulatory controls, distributed transactions, audit requirements, retries, failures, and decades of technology. Perfect REST may look elegant on a whiteboard, but practical enterprise API design is about consistency, security, resilience, clear domain semantics, and knowing when a deliberate compromise is better than architectural purity.

Harish Kumar Aug 20, 2026