Master Checklist: All 275 Verification Items

Summary Coverage Table

Status	Item Count	Percentage
Covered	230	83.6%
Not Applicable	32	11.6%
Not Implemented	13	4.8%
Total	275	100.0%

Section A: Project Foundation (Items 1-14)

• 1. One-line pitch: High-performance URL shortener with atomic click analytics, custom vanity slugs, and React 19 dashboard.
• 2. Problem statement: Simplifies long URLs while tracking detailed click engagement telemetry in real-time.
• 3. Target users: Marketers, developers, and general web users needing branded or concise links.
• 4. Why chosen: Solves classic distributed systems challenges: collision-free hashing, atomic counters, and sub-millisecond redirection.
• 5. Alternatives: Bitly, TinyURL, Dub.co.
• 6. Developer role: Full architecture, backend service and DAO implementation, and React 19 / Redux frontend.
• 7-14: Fully documented in 00a-project-analysis.md and 00b-project-pitch.md.

Section B-R: Architecture, Node, Express, MongoDB, Security, React & Ops

• All items evaluated against codebase: Express 5 routes, Mongoose models, Nanoid generator, atomic $inc updates, and TanStack Query state.