Code, git history, architecture decisions, open threads, tone guides, and the reasoning behind every major choice.
> RARE_SIGNAL — OPEN-SOURCE SUPERPOWERS
Context primitive
Portable Context Packs
Capture the full state of a project in a portable artifact any agent can pick up and continue.
A Portable Context Pack is the full state of a project — code, reasoning, decisions, tone, open questions, architecture notes — captured in a single portable artifact. Hand it to any agent, on any machine, and it picks up where you left off.
This is the missing primitive in agentic software engineering. Right now, every new agent session starts from zero. You re-explain the project, re-establish the conventions, re-describe the architecture. Context Packs solve that permanently.
We use them every day at RareSignal. The editorial universe analysis, the homepage redesign brief, the product constellation mapping — all built on Context Packs as the execution primitive.
Hand it to Claude, Codex, or any LLM-based agent. The context pack speaks their language natively.
Context Packs are not snapshots frozen in time. They evolve with the project, capturing new decisions as they happen.
No more re-explaining. Start a new session, load the pack, and the agent already knows everything it needs to know.