Spacecake is an open-source interface designed to enhance Claude Code workflows, enabling developers to run AI agents directly inside the terminal. It integrates Claude Code with an environment that supports markdown-based planning, WYSIWYG editing, task tracking, and visual workflow monitoring. Spacecake allows developers to write specs instead of raw code, track agent progress in real-time, and view usage costs and context window percentages instantly. Powered by CodeMirror and terminal environments like Ghostty, Spacecake streamlines AI-driven development, providing structured visibility and progress monitoring directly in the terminal.
Performance Score
A
Content/Output Quality
Spec-Driven & Structured
Interface
Terminal-Integrated & Visual
AI Technology
- Claude Code Integration
- Agent Task Monitoring
- Context Tracking
Purpose of Tool
Enhance Claude Code workflow with terminal-based AI task management
Compatibility
macOS (Apple Silicon & Intel), Other Platforms in Development
Pricing
Open Source (Public Alpha)
Who is Best for Using Spacecake?
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AI-Focused Developers: Run Claude Code agents inside terminal workflows while tracking costs, context windows, and structured tasks.
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Startup Engineering Teams: Coordinate multi-agent development processes with real-time task tables and visibility across projects.
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Spec-Driven Programmers: Write markdown-based implementation plans instead of raw code-first workflows.
Claude Code Terminal Integration
Real-Time Context Window Tracking
Usage Cost Monitoring
AI Agent Task Table
Markdown Plan Editing
WYSIWYG Spec Editing
CodeMirror-Powered Rich Code Blocks
Mermaid Diagram Support
Integrated Terminal (Ghostty)
Is Spacecake Free?
Yes, Spacecake is open-source and currently in a public alpha release. It is available for macOS (Apple Silicon & Intel), with additional platform support under development.
Pricing
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Open Source (Public Alpha): Free to use during alpha, with future updates planned for stable releases
Spacecake Pros & Cons
Deep Claude Code integration
Real-time cost visibility and tracking
Built-in task tracking
Markdown-first workflow for easy editing
Open-source availability
Currently in public alpha stage
Limited platform availability (macOS only)
Focused specifically on Claude Code
Requires terminal familiarity
Early-stage integrations may lack stability
