Mnemos: Open-Sourced Local-First Memory Layer for Coding Agents

What Mnemos Solves

Mnemos addresses three specific problems the creator observed in agent memory systems: repo-specific facts bleeding into unrelated work, old facts persisting alongside new facts indefinitely, and transcript storage growing without clean compaction.

Current Beta Features

• Local-first architecture
• SQLite starter profile
• MCP support for Claude Code, Claude Desktop, and generic stdio hosts
• Documented Codex setup through MCP + AGENTS.md

Biomimetic Pipeline Components

• SurprisalGate: Filters noise to prevent low-signal interactions from becoming long-term memory
• MutableRAG: Rewrites stale facts instead of accumulating duplicates
• AffectiveRouter & SpreadingActivation: Make retrieval more contextual than plain vector lookup
• SleepDaemon: Consolidates raw episodic logs into durable facts and prunes the rest

Installation & Setup

Install with: pip install "mnemos-memory[mcp]"

Run diagnostics: mnemos-cli doctor

Feedback Focus Areas

The creator is specifically seeking feedback on: scope isolation in real repo workflows, retrieval quality during actual coding tasks, MCP host behavior, and Codex workflows.

Resources

• Website: https://mnemos.making-minds.ai
• GitHub: https://github.com/anthony-maio/mnemos
• Technical deep dive: https://anthonymaio.substack.com/p/your-agent-has-amnesia