sdsrss/claude-mem-lite
46 stars · Last commit 2026-06-04
Persistent long-term memory for Claude Code via MCP — captures coding decisions, bugfixes, and context across sessions. Hybrid FTS5 + TF-IDF search with episode batching. Single SQLite DB, no external services. Alternative to claude-mem with 600x lower cost.
README preview
[English](README.md) | [中文](README.zh-CN.md) # claude-mem-lite `claude-mem-lite` is a **persistent memory** (also called *long-term memory* or *cross-session context*) system for **[Claude Code](https://docs.anthropic.com/en/docs/claude-code)** — Anthropic's CLI coding agent. It runs as an **[MCP](https://modelcontextprotocol.io/) server** plus a set of Claude Code hooks, automatically capturing coding observations, decisions, and bug fixes during sessions, then providing hybrid full-text + semantic search to recall them later. Compared to general-purpose LLM memory frameworks like [`mem0`](https://github.com/mem0ai/mem0) or the MCP reference [`memory`](https://github.com/modelcontextprotocol/servers/tree/main/src/memory) server, claude-mem-lite is purpose-built for Claude Code's hook lifecycle: episode batching cuts LLM calls 7–10× vs the original [claude-mem](https://github.com/thedotmack/claude-mem) (an estimated ~600× lower total cost — see the cost model below; this is an architecture estimate, not a measured benchmark), while the hybrid FTS5 + TF-IDF retriever benchmarks at 0.88 Recall@10 / 0.96 Precision@10. > 中文简介：claude-mem-lite 是 Claude Code 的轻量级**持久化记忆 / 长期记忆 / 跨会话上下文**插件，基于 MCP 协议 + 钩子机制，自动捕获编码会话中的决策、修复和上下文，并通过 FTS5 + TF-IDF 混合检索召回。详见 [中文 README](README.zh-CN.md)。 Zero external services. Single SQLite database. Minimal overhead. ## Why claude-mem-lite? A ground-up redesign of [claude-mem](https://github.com/thedotmack/claude-mem), replacing its heavyweight architecture with a smarter, leaner approach. ### Architecture comparison | | claude-mem (original) | claude-mem-lite | |---|---|---|