Ehsan.kolivand — Field Notes Long-form notes on Jetpack Compose, clean architecture, and building agentic dev tooling that actually ships — from seven years in fintech, banking & crypto. https://ehsankolivand.github.io/blog/ 2026-08-03T00:00:00Z Ehsan Kolivandhttps://ehsankolivand.github.io/ I Spent Twelve Days Trying to Cut My Coding Agent's Token Use by 30%. The Answer Was Arithmetic, Not Code. https://ehsankolivand.github.io/blog/semantic-index-coding-agent-token-cost/ 2026-08-03T00:00:00Z 2026-08-03T00:00:00Z A semantic index plus a compiler-grade call graph did not cut my coding agent's token bill. It came out 4.4% more expensive. Here is the arithmetic that made the 30% target impossible, and the one job the tool is genuinely good at. Ehsan Kolivand How I Cut My Claude Code Bill Without Losing Code Quality https://ehsankolivand.github.io/blog/codex-plugin-claude-code-cross-model-review/ 2026-07-14T00:00:00Z 2026-07-14T00:00:00Z Keep Claude Code writing, review every change with OpenAI's Codex plugin (a different model), and drop to a cheaper writer without losing code quality. Ehsan Kolivand Clean Code Didn't Make My Coding Agent Smarter. It Made It Cheaper. https://ehsankolivand.github.io/blog/clean-code-coding-agents-context-engineering/ 2026-07-06T00:00:00Z 2026-07-06T00:00:00Z A controlled 2026 SonarSource study found clean code doesn't raise a coding agent's success rate, but it cuts token cost and file re-reads. Here's the mechanism, and how I scoped context with per-module CLAUDE.md files in an Android project. Ehsan Kolivand Compose Multiplatform 1.12: the iOS fixes that matter most https://ehsankolivand.github.io/blog/compose-multiplatform-1-12-ios-fixes/ 2026-06-30T00:00:00Z 2026-06-30T00:00:00Z Compose Multiplatform 1.12's headline is mesh gradients. The changes that matter are two quiet iOS fixes: the HorizontalPager swipe-back conflict and ViewModel.onCleared. Ehsan Kolivand AnkiVoice: turn text Anki decks into native-audio decks, fully offline https://ehsankolivand.github.io/blog/ankivoice-offline-audio-anki-decks/ 2026-06-28T00:00:00Z 2026-06-28T00:00:00Z A Telegram bot that adds clear, native-accent English audio to your Anki cards — generated locally with Kokoro-82M on a 4 GB VPS, no cloud TTS, your text untouched. Ehsan Kolivand speakloop: offline interview practice for engineers who think in another language https://ehsankolivand.github.io/blog/speakloop-offline-interview-practice/ 2026-06-28T00:00:00Z 2026-06-28T00:00:00Z Why I built a fully offline CLI to practice technical interviews out loud — the 4/3/2 loop, local-only AI on Apple Silicon, and a Markdown report that names the one thing to fix next. Ehsan Kolivand I got added to a 10,000-message Telegram group. I read none of it. https://ehsankolivand.github.io/blog/telegram-topic-export-markdown-jsonl/ 2026-06-28T00:00:00Z 2026-06-28T00:00:00Z A small Python script that exports any Telegram group or topic to an LLM-friendly Markdown file — so you can drop it into NotebookLM and get a summary, a timeline, and the key points in minutes instead of days. Ehsan Kolivand