SELECTED WORK & ENGINEERING
From everyday problems to working software
Three inspectable examples of my work: native Mac apps, shortcut diagnostics, and production web delivery. Each case explains the problem, the implementation, and what is available to try today.
This page holds the case narratives. The full product list — iPhone/Mac apps, sites, mini-programs — lives at apps.tianli.cyou →
More engineering work

Cross-Platform Agent Engineering Harness (Claude Code / Codex)
A personal engineering harness for Claude Code and OpenAI Codex, sharing rules, skills and tools while adapting execution entry points and checks to each platform.

Industrial Park Water Efficiency Assessment System
Engineering implementation of AHP-CRITIC combined weighting and TOPSIS multi-criteria decision algorithms.

Daily Briefing Auto-Push System
LLM-powered daily information aggregation — automatic collection, intelligent summarization, and scheduled push delivery.

River and Reservoir Pollutant Assimilation Capacity Calculator
Numerical computation of the river channel decay model combined with AI-assisted development practice — engineering path from formula to product.