Practical overview
When it fits
Use Mnemon when an agent must preserve and retrieve knowledge across sessions and the memory engine should remain a separate local component from the agent runtime and host LLM.
Who it is for
- Developers adding durable memory to AI coding assistants
- Teams building agent workflows that need cross-session knowledge recall
- Users of Claude Code, DeepSeek Harness, or OpenClaw seeking a local memory layer
- Builders who want the host LLM to supervise memory decisions while a local binary handles storage and graph operations
Documented uses
- Retain important decisions between conversations
- Recall relevant knowledge after context compaction
- Create linked project or agent knowledge stores
- Reduce duplicate memory entries through automatic deduplication
- Add a local memory surface to named agent environments
Requirements & limits
The repository is public and licensed under Apache-2.0. The README documents npm installation for macOS, Linux, and Windows, with source installation documented for macOS and Linux. Node.js 22 or newer is required for the npm installation route. The README states that the memory path uses no separate API keys.
- Mnemon is a memory layer, not a replacement for the agent runtime.
- Its architecture assigns judgment calls to the host LLM and deterministic storage, indexing, search, and decay to the binary.
- The memory path is described as a single local binary.
- The repository names DeepSeek Harness, Claude Code, and OpenClaw as supported agent environments.
- The separate Agency Preview is Pi-first and has a documented macOS/Linux boundary; it is distinct from Memory.
Check current requirements in the official documentation. Source-based guidance does not mean OpenViST has run or independently tested this project.
Install Mnemon through npm
Install the native Mnemon executable on a supported desktop operating system and check the installed command.
Before you start
- macOS, Linux, or Windows
- Node.js 22 or newer
- npm
Steps
Run npm install --global @mnemon-dev/mnemon.
Run mnemon --version to check the installation.
Run mnemon agency --version to check the separately distributed Agency surface.
Expected outcome
The npm package installs the matching native Go executable for the host operating system and CPU, with Node.js used by the launcher and package manager.
Guide limitations
- The documented npm route targets macOS, Linux, and Windows; the source-install route is documented for macOS and Linux.
- Agency remains unavailable on Windows until its local authority boundary has native Windows security.
- Checking a version command confirms command availability only; it is not an execution test, audit, or compatibility guarantee.
Enable Mnemon memory for Claude Code
Deploy Mnemon’s documented Claude Code skill, hooks, and behavioral guide.
Before you start
- Mnemon installed and available as the mnemon command
- Claude Code detected by Mnemon setup
Steps
Run mnemon setup.
Allow the command to auto-detect Claude Code and deploy the skill, hooks, and behavioral guide.
Start a new Claude Code session.
Expected outcome
The documented setup places Mnemon’s memory integration into the Claude Code workflow for subsequent sessions.
Guide limitations
- The supplied setup instructions do not describe the individual hook files or configuration changes.
- The evidence names the workflow but does not provide a demonstrated integration test.
Sources & review
Source record details
- Source availability
- Active
- Sources checked
- 3 October 2026
- Original website title
- mnemon-dev/mnemon · Official homepage title · retained in its source language