01 MEMORY HUB
It remembers
Nothing is overwritten. A correction writes a new fact and supersedes the old one, so what you believed last March is still there when it matters.
Myelin gives any MCP host a persistent, per-project brain. It never calls a model.
Nothing is overwritten. A correction writes a new fact and supersedes the old one, so what you believed last March is still there when it matters.
Workflows and skills served to the host as native MCP prompts, so the way work gets done travels to whichever model you are using.
A deterministic validate grades output against your standards in single-digit milliseconds, and hands back a line, a column, and a fix.
Repetition becomes a proposal. Nothing rewrites itself unasked, and safety-relevant settings can never be written automatically at all.
No API keys, because there is nothing to call. Storage, retrieval, ranking, validation and refusal are all deterministic code.
p95 over 5,000 memories. Asserted as a test, so a regression fails the build.
A brain is an encrypted file. The key is generated on your device and kept in your keychain — the server stores a one-way verifier and nothing else, so it can reject a wrong key without ever holding the right one.
One Go binary, one SQLite file. Claude Code, Claude Desktop, any MCP host.