What is this?
GSD Core is a light-weight context-engineering and spec-driven development framework that drives AI coding agents like Claude Code, Codex, and Cursor through a disciplined phase loop.
GSD Core is a light-weight context-engineering and spec-driven development framework that drives AI coding agents like Claude Code, Codex, and Cursor through a disciplined phase loop.Is this a separate app, or something that lives inside my AI coding agent?It is not a standalone app — it is a framework you install on top of an agent you already use. The installer sets it up for your specific runtime, either globally or per-project.
It is not a standalone app — it is a framework you install on top of an agent you already use. The installer sets it up for your specific runtime, either globally or per-project.How do I get it set up?Run the installer — it needs Node.js 24+ and npm 10+ — and it prompts for your runtime and install scope. Then start a new project or onboard an existing repo; a 'Your first project' tutorial covers the whole flow from install to first shipped phase.
Run the installer — it needs Node.js 24+ and npm 10+ — and it prompts for your runtime and install scope. Then start a new project or onboard an existing repo; a 'Your first project' tutorial covers the whole flow from install to first shipped phase.Which coding agents does it work with?Claude Code, OpenCode, Antigravity CLI, Kimi CLI, Kilo, Codex, Copilot, Cursor, and Windsurf are named, plus an 'Install on your runtime' guide for anything else.
Claude Code, OpenCode, Antigravity CLI, Kimi CLI, Kilo, Codex, Copilot, Cursor, and Windsurf are named, plus an 'Install on your runtime' guide for anything else.Any install pitfalls I should know about?Yes — never copy files from agents/ or commands/ directly. The installer is required for cross-runtime compatibility, so manual copying breaks it.
Yes — never copy files from agents/ or commands/ directly. The installer is required for cross-runtime compatibility, so manual copying breaks it.What is context rot?It is the quality degradation that builds up as an AI fills its context window. GSD Core counters it by running all heavy research, planning, and execution in fresh-context subagents so your main session stays lean.
It is the quality degradation that builds up as an AI fills its context window. GSD Core counters it by running all heavy research, planning, and execution in fresh-context subagents so your main session stays lean.Does it check that the code actually works before a phase is done?Yes. The Verify step walks through what was built, diagnoses problems, and generates fix plans before a phase is declared done.
Yes. The Verify step walks through what was built, diagnoses problems, and generates fix plans before a phase is declared done.Can I use it on an existing codebase, or only for new projects?Both work. After installing you can start a new project or onboard an existing repo, with a dedicated 'Onboarding an existing codebase' guide for brownfield setup.
Both work. After installing you can start a new project or onboard an existing repo, with a dedicated 'Onboarding an existing codebase' guide for brownfield setup.What are similar projects?Trellis, get-shit-done, pstack-claude, superpowers-zh, Orbital, deer-flow, ruflo, oh-my-subagents
Trellis, get-shit-done, pstack-claude, superpowers-zh, Orbital, deer-flow, ruflo, oh-my-subagentsWhich topics is it in?spec-driven-development, subagents, context-engineering, agent-memory, workflow, agent-orchestration, cursor, coding-agent, claude, codex, framework, claude-code
spec-driven-development, subagents, context-engineering, agent-memory, workflow, agent-orchestration, cursor, coding-agent, claude, codex, framework, claude-code