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A Capsule (or “Context Pack”) is a portable bundle of your decisions and memories. It is the mechanism Hopsule uses to transfer your project’s strict context to external tools like Claude, ChatGPT, and Cursor AI.

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Why Capsules?

Sharing context with AI is usually messy. Pasting raw documentation leads to hallucinated code because LLMs can’t distinguish between a strict rule and a loose suggestion. Capsules solve this by packaging:
  • Decisions: The strictly enforced architectural constraints.
  • Memories: The advisory, explanatory context answering “why something was decided”.

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Using Capsules

MCP Server

Load Capsules directly into Claude Desktop via the Model Context Protocol.

IDE Integration

Export to .contextpack.json format to share with Cursor AI via the IDE addon.
When a Capsule is set to FROZEN, it becomes an immutable snapshot of your architecture at a specific point in time, perfect for onboarding new developers.