Posts

Posts are time-based write-ups, what I learned this week, notes from a project, experiments. Newer posts appear first.

Each post lives at posts/YYYY-MM-DD-<slug>.md. Posts are meant to be portable: the same markdown can be pasted into dev.to, Medium, or LinkedIn with minimal edits.

Post series

• Engineering Guardrails for AI Systems, a 14-part path through threat models, prompt injection, enforceable tool boundaries, MCP and agent controls, security evals, causal tracing, and incident response.
• Home-health routing system, a project-shaped sequence through home-health data, compliance, tenancy, workflow states, route optimization, ML scoring, and async fanout.
• Auth and browser security, browser boundaries, token placement, stateless auth, rate limits, and prompt-injection failure modes.
• Software design principles, design advice grounded in SOLID, composition, and concurrency control.
• CS reference sheets, quick-reference posts for data structures and named algorithms.
• Modern React development, a 40-part React sequence covering core React, common frameworks, tooling, testing, and production concerns.
• Zero to iOS Hero, a production-shaped path through Swift, Xcode, SwiftUI, UIKit, architecture, testing, shipping, Apple platform capabilities, and complete app case studies.
• Domain-Specific Languages in Practice, a research-backed guide to DSL definitions, concrete examples, gotchas, tooling, business value, calculator-based evaluation, and production operation.
• MCP Server Design, a nine-part path from HTTP and REST comparisons through protocol mechanics, TypeScript server and client implementation, model tool loops, bidirectional features, and production security.
• Coding Agent Internals, a clean-room path through terminal agent loops, context assembly, tools, permissions, hooks, subagents, MCP, evals, and containment.