§ Open-source · MCP
Giving Claude a long-term memory without a database.
A file-backed memory server that works across sessions, integrates with any MCP host, and ships with zero config.
- Sector
- Developer tools
- Year
- 2026
- Role
- Lead engineering
- Stack
- Node.js · TypeScript · MCP SDK
01 · Problem
LLM assistants forget everything at the end of a conversation. Teams wanted continuity — remembering the user, the project, the preferences — without standing up a vector DB per user.
02 · Approach
- 01
Designed a typed memory schema (user, feedback, project, reference) with frontmatter-based storage.
- 02
Shipped an MCP server in Node that reads/writes memory files locally.
- 03
Wrote a reference client + recall heuristics tuned for agentic workflows.
03 · Outcome
< 60s
Install time
npx one-liner, no services, no secrets.
+38%
Recall quality
Internal eval vs. no-memory baseline on multi-session coding tasks.
1.2k
Stars in wk 1
Shared on HN and the MCP community Discord.
Stack
- Node.js
- TypeScript
- MCP SDK
- Zod
- Vitest
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