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Mnemosyne Hermes Memory Providers - Setup Guide

Source: mnemosyne-oss/mnemosyne GitHub: github.com/mnemosyne-oss/mnemosyne (2.3K⭐) Category: Memory / Knowledge Infrastructure First Seen: July 14, 2026 Security: Gen Agent Trust Hub Pass · Socket Pass · Snyk Pass

Mnemosyne is a local-first memory layer for AI agents. Deployed as a Hermes memory provider, it replaces the built-in MEMORY.md/USER.md flat-file system with SQLite-backed vector + FTS5 hybrid search, episodic consolidation, temporal knowledge graphs, and optional bidirectional sync.

100% local. Zero cloud. Sub-millisecond recall.


Installation

npx skills add https://github.com/mnemosyne-oss/mnemosyne --skill hermes-memory-providers

The provider ships with its own SQLite storage engine; no external vector database or cloud account is required.


What It Gives You

Capability Detail
System prompt injection # Mnemosyne Memory context block in every prompt
Pre-turn prefetch Relevant memories injected before each LLM call
Post-turn sync Conversation turns auto-stored to episodic memory
20 injected tools remember, recall, sleep, triples, scratchpad, graph, sync, diagnostics, and more
3 lifecycle hooks pre_llm_call, on_session_start, post_tool_call
CLI hermes mnemosyne {stats|sleep|inspect|export|import|clear|version}

CLI Reference

hermes mnemosyne stats     # memory counts, storage size, health
hermes mnemosyne inspect   # browse stored memories
hermes mnemosyne export    # portable JSON export
hermes mnemosyne import    # restore from export
hermes mnemosyne sleep     # consolidation cycle (vector re-index)
hermes mnemosyne clear     # wipe memory store
hermes mnemosyne version   # provider version

Prerequisites

Requirement Details
Hermes Agent Current version with memory-provider support
Python 3.9+ For the provider runtime
SQLite Bundled with Python; no separate install
Disk space Local-only storage; sized by memory volume

CorpusIQ Use Cases

Use Case How
Structured memory upgrade Replace flat MEMORY.md with queryable vector + FTS5 recall across agent sessions
Episodic consolidation Auto-archive conversation turns; run sleep cycles to consolidate patterns
Memory analytics stats and graph surface what the agent actually remembers and uses
Portable backups export/import for agent migrations between machines
Local-first compliance Zero-cloud memory for sensitive business data

Integration with CorpusIQ

CorpusIQ is the connector layer that lets AI assistants read the systems a business already runs on - accounting, payments, CRM, email, files and analytics - and answer with the source named. It is read-only by design: it retrieves data and never writes to, or acts in, a connected system, which is what makes it safe to point at live accounts.

This page is part of the CorpusIQ directory, the reference we maintain for the MCP server and agent-skill ecosystem. Run alongside CorpusIQ, a third-party server like this one can be combined with a company's own business data in a single answer.

See what CorpusIQ connects

Limitations / Verification

  • Provider replaces MEMORY.md/USER.md - migrate existing memory files before enabling
  • 4 installs on skills.sh; the repo (2.3K⭐) is established but the Hermes provider integration is new
  • Verify: hermes mnemosyne version returns the provider version, and a fresh session shows the # Mnemosyne Memory context block

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