1jehuang/jcode

jcode The next generation coding agent harness to raise the skill ceiling. Built for multi-session workflows, infinite customizability, and performance. Website · Features · Install · Quick Start · Further Reading · Contributing Installation # macOS & Linux curl -fsSL https://jcode.sh/install | bash # Windows 11 (PowerShell 5.1+) irm https: // jcode.sh / install.ps1 | iex Need Homebrew, source builds, provider setup, or want an agent to set it up for you? Jump to detailed installation . Performance & Resource Efficiency jcode is built to be as performant and resource efficient as possible. Every metric is optimized to the bone, which is important for scaling multi-session workflows. Here we sample a few metrics to show the difference: RAM usage and boot up. RAM comparison 1 active session Tool PSS Comparison jcode (local embedding off) 27.8 MB baseline jcode 167.1 MB 6.0× more RAM pi 144.4 MB 5.2× more RAM Codex CLI 140.0 MB 5.0× more RAM OpenCode 371.5 MB 13.4× more RAM GitHub Copilot CLI 333.3 MB 12.0× more RAM Cursor Agent 214.9 MB 7.7× more RAM Claude Code 386.6 MB 13.9× more RAM Antigravity CLI 243.7 MB 8.8× more RAM 10 active sessions Tool PSS Comparison jcode (local embedding off) 117.0 MB baseline jcode 260.8 MB 2.2× more RAM pi 833.0 MB 7.1× more RAM Codex CLI 334.8 MB 2.9× more RAM OpenCode 3237.2 MB 27.7× more RAM GitHub Copilot CLI 1756.5 MB 15.0× more RAM Cursor Agent 1632.4 MB 14.0× more RAM Claude Code 2300.6 MB 19.7× more RAM Antigravity CLI 1021.2 MB 8.7× mor