Examples
A gallery of worked examples built with Overplane.
Beginner HTML
A mobile-friendly, web-based browser game set on a farm with live animals, inspired by MineSweeper. Demonstrates multi-agent builds and build caching using a simple, one-shottable prompt.
Claude Code 2026-07-09 claude-sonnet-5
cost (reported) $4.69
wall time 25m 19s
Codex 2026-07-09 gpt-5-codex
cost (computed) $1.26
wall time 5m 45s
OpenCode 2026-07-09 openrouter/deepseek/deepseek-v4-flash
cost (reported) $0.10
wall time 21m 2s
Intermediate Go
A multi-pane console TUI that browses your music folder and plays MP3s on the system default output: directory tree, track list with ID3 tags, and a live Now Playing pane. Cross-platform Go, built by one agent from three short specs.
Claude Code 2026-07-09 sonnet
cost (reported) $13
wall time 40m 58s
Intermediate Rust
A tiny, single-binary HTTP/S reverse proxy in the spirit of nginx or Caddy, but radically simpler: std-only Rust, host-based routing, SNI TLS passthrough, and a beautiful console log. Built by one agent from three short specs.
Claude Code 2026-07-09 sonnet
cost (reported) $6.09
wall time 29m 30s
Advanced Rust
A wire-compatible Redis clone in one std-only Rust binary: RESP2, strings, expiration, lists/hashes/sets, and a measured concurrency architecture. Seven specs, three verification layers derived from the raised IR — Z3 at build time, proptest properties, Kani proofs — and live redis-benchmark numbers against real Redis.
GET throughput, ×16 pipeline 2.56M req/s
vs. Redis 7, ×16 pipeline up to 127%
vs. Redis 7, unpipelined 89–96%
Claude Code 2026-07-09 claude-opus-4-8
cost (reported) $45
wall time 2h 51m