gsd-core
Git. Ship. Done - Core
GSD Core is a context-engineering and spec-driven development framework that orchestrates AI coding agents through a disciplined five-phase workflow. It combats context rot—the quality degradation that occurs as AI assistants fill their context windows—by delegating heavy research, planning, and execution tasks to fresh-context sub-agents while maintaining a lean main session. The system works with Claude Code, OpenCode, Antigravity CLI, Kimi CLI, Codex, Copilot, Cursor, Windsurf, and similar AI coding tools, guiding them through discuss, plan, execute, verify, and ship phases for each development milestone.
Key Features
Use Cases
- 01Building complex features across multiple milestones without AI output quality degradation
- 02Onboarding AI coding assistants to existing codebases with structured context management
- 03Running parallel implementation waves with isolated, fresh AI contexts for each task
- 04Maintaining consistent code quality through automated verification before shipping phases
- 05Managing long-running development projects where session memory persistence is critical
- 06Coordinating AI-assisted development across teams with shared state artifacts
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gsd-core — FAQ
What is GSD Core?+
GSD Core is a meta-prompting and context-engineering framework that drives AI coding agents through a structured five-phase loop (Discuss, Plan, Execute, Verify, Ship). It prevents context rot by running heavy work in fresh sub-agents while maintaining lean main sessions with persistent state artifacts.
How do I install GSD Core?+
Run 'npx @opengsd/gsd-core@latest' and follow the installer prompts to select your runtime (Claude Code, Cursor, Windsurf, etc.) and installation scope. After installation, use '/gsd-new-project' for new projects or '/gsd-onboard' for existing codebases.
Which AI coding assistants work with GSD Core?+
GSD Core supports Claude Code, OpenCode, Antigravity CLI, Kimi CLI, Kilo, Codex, GitHub Copilot, Cursor, Windsurf, and other compatible AI coding tools. The cross-runtime installer handles compatibility automatically.
Do I need API keys or prerequisites for GSD Core?+
You need Node.js to run the installer via npx. The framework itself works with your existing AI coding assistant; no separate API keys are required beyond what your chosen runtime already uses.
Is GSD Core free to use?+
Yes, GSD Core is open source and released under the MIT License. You can use it freely in personal and commercial projects.
How does GSD Core prevent context rot?+
GSD Core runs all heavy research, planning, and execution work in fresh-context sub-agents that start with clean context windows, while structured artifacts like STATE.md and CONTEXT.md preserve essential information across sessions. This prevents the quality degradation that occurs when AI context windows fill up.
How do I install gsd-core?+
Open the source repository on GitHub and follow its README. gsd-core is a agent — MCP Agents Market links you directly to the official repo.
Is gsd-core free?+
gsd-core is an open-source project hosted on GitHub. Check the repository for its license and any usage requirements.