Engrene Memory Bridge: memory tool for Hermes Agent

Local-first project memory for AI coding agents, shared through plain files in .memory-bridge

What Engrene Memory Bridge does

Engrene Memory Bridge keeps sessions, decisions and a handoff snapshot as plain JSONL and Markdown inside .memory-bridge/ in the project, so different AI tools can pick up the same context. It retrieves relevant context with a hybrid of BM25 and what the README calls Joint Embedding Vectors rather than replaying whole chat histories, and a consolidated handoff.md summarizes goals and next steps. It has zero runtime dependencies and works offline using Node.js built-ins.

On Node.js 22.5 or newer it uses node:sqlite for FTS5, semantic and hybrid search; on Node.js 20 the CLI still works but search falls back to in-memory BM25. The init command adds .memory-bridge/ to .gitignore, and the README describes how to share memory across machines through git instead. Secret redaction runs before anything is written, optional encryption protects committed memory, and a bidirectional Obsidian vault sync turns decisions and sessions into notes with wikilinks. Short mb-* commands such as mb-claude, mb-codex and mb-hermes wrap the same shared code.

Key features

Plain JSONL and Markdown memory in .memory-bridge/
Hybrid BM25 and vector search with an in-memory BM25 fallback on Node.js 20
Consolidated handoff.md snapshot of goals and next steps
Secret redaction before writing and optional encryption
Bidirectional Obsidian vault sync with wikilinks
mb-* wrapper commands including mb-hermes

When to use it

Switching between Hermes, Claude Code and Cursor on the same project without losing context
Handing a task to a remote server or SSH container through a git pull
Browsing decision history as a graph in Obsidian

Who it is for: Developers who move between several AI coding tools and want one local, file-based project memory.

How it fits with Hermes Agent

It supports Hermes among many agents, with an mb-hermes wrapper command, and its repository carries Hermes skill topics.

How to install Engrene Memory Bridge

These commands are copied from the project's README. Check the repository for the latest steps before you run them.

npm install -g engrene-memory-bridge
npx engrene-memory-bridge init

Requirements: Node.js 20 or newer, with Node.js 22.5+ for FTS5, semantic and hybrid search

FAQ

What is Engrene Memory Bridge?

Engrene Memory Bridge is an open, local-first memory protocol for AI coding agents. It stores project memory as JSONL and Markdown files so different tools can share sessions, decisions and handoff state.

Does Engrene Memory Bridge work with Hermes Agent?

Yes. Hermes is one of the supported agents, with an mb-hermes wrapper command. The same memory also works with Claude Code, Codex, Cursor and others.

How do I install Engrene Memory Bridge?

Run npm install -g engrene-memory-bridge, then npx engrene-memory-bridge init inside your repository to initialize memory.