Memory infrastructure for engineering agents

Engineering Intelligence

Git stores your code. We store your engineering intelligence. CAIRN turns engineering decisions into a living knowledge graph so AI agents consume structured context instead of rereading entire repositories.

terminal

$cargo install cairn

Context decay

Your context window is burning money.

Decisions scatter across pull requests, terminal output, chats, markdown, and commits. Agents re-read the same repository because the memory of why the system exists was never given structure.

Living structure

Every decision becomes architecture.

Files orbit decisions. Commits bind to rationale. AI sessions attach to the concepts they changed. The graph is not a diagram; it is a navigable substrate for future work.

Mass and measurement

Statistics have weight.

76.6%Less repeated context in agent sessions

313Decision links recovered from one repository pass

~1sStructured context retrieval for the next task

Orbital workflow

Commands assemble the machine.

cairn init

The repository appears as an addressable memory space.

cairn mark

A decision becomes a node with files, commits, and rationale attached.

cairn dashboard

The graph awakens for humans and AI agents at the same time.

Final orbit

Git records history. CAIRN preserves intelligence.

Nothing else matters.