Skip to content
Aryawijaya
← Side projects

(Open source, Rust)

marrow.works homepage

Shared memory for AI coding agents, so context survives the session.

Role:
Creator
When:
2026
Stack:
Rust, MCP, semantic retrieval
Live:
marrow.works ↗
Code:
GitHub ↗

Marrow

(Context)

Coding agents forget everything when the session ends, so every new session re-reads the same files and burns tokens. Marrow gives Claude Code, Codex and Cursor one shared memory.

(What I built)

  1. 01Semantic retrieval over project facts.
  2. 02Code-linked staleness detection, so a fact expires when the code under it changes.
  3. 03Shared context across agents and a hash-chained audit history.
  4. 04Spinal Cloud, the hosted relay that lets a team share one memory across machines.

(Results)

Marrow

52%

Less context per turn

$0.50

Task cost, down from $0.90

75

Benchmark runs, p = 0.002

(Next)

Stuart →