GhostCode
Open-source starter template for a terminal coding harness
6 followers
Open-source starter template for a terminal coding harness
6 followers
I built GhostCode because coding harnesses got smarter and I understood them less. Small open-source terminal harness you can read and fork ā not a Claude Code clone. Local-first, your API keys. Bun + AI SDK. PLAN + BUILD modes, custom TUI, prompts, tools, Ghost.md memory, JSONL sessions. Good for developers who want to own their harness, not rent one.
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GhostCode is an open-source starter template for a terminal coding harness ā not a Claude Code or OpenCode replacement.
I built it because I wanted to understand how coding agent harnesses actually work: streaming, tool calls, local execution, session persistence. The big tools got smarter; I understood them less. So I made something small enough to read in an afternoon and fork without drowning in code.
What you get:
ā¢ Local-first ā your API keys, your machine, no hosted account stack
ā¢ PLAN mode (read-only) + BUILD mode (edit files + shell)
ā¢ Bun + AI SDK ā swap Anthropic and OpenAI at runtime
ā¢ Customizable TUI, prompts, tools, and Ghost.md project memory
ā¢ Session persistence as JSONL under ~/.ghostcode/projects/
ā¢ MIT license ā fork it, rename it, ship your version
What's missing (on purpose): no MCP, no sub-agents yet. This is a learning template, not a feature parity play.
Good for developers who want to own their harness, not rent one.
Try it: npm install -g ghostcode-cli (needs Bun)
Quick start:
npm install -g ghostcode-cli
export ANTHROPIC_API_KEY=...
ghostcode
Build-your-own walkthrough