Full-stack and AI engineer. I build open-source tools that make coding agents (Claude Code, Codex, Cursor) finish what they start, remember what they learn and spend less. More at nirfeinste.in.
| Project | What it does | |
|---|---|---|
| most-capable-agent-system-prompt | A copy-paste system prompt that has your coding agent build a self-improving agent system for any computer work |  |
| agent-harness | Skills, rules and hooks that make Claude Code or Codex act as a product team, a CEO or a portfolio manager |  |
| frugal | Your agent finds free tiers, programs, verified promo codes and cheaper alternatives before it pays for anything |  |
| flipback | An automatic /goal for every turn: sends Claude Code back when it stops before the work is done |
 |
| recall | Your Claude Code memory in every agent: Codex, Cursor and others read and write it over MCP |  |
| conductor | Verified, retried and fallback-backed commands for Claude Code, served as MCP tools |  |
| account-access | Scoped, resumable account access for coding agents, with OAuth renewal |  |
| mac-keepawake | Keep your Mac awake with the lid closed, and dim the backlight while it's shut |  |
| handy-ai | Android assistant that completes tasks on your phone: it taps, types and follows through |  |
| regressguard | Self-hosted CI eval harness for prompt regression testing (Docker + CLI) |  |
| standup | Writes your standup update from your git commits, in one command |  |
If one of these saves you time or money, a star helps other people find it.