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@vitaminm/lcm-mcp

v0.0.3

Published

MCP server exposing Local Conversational Memory tools (lcm_grep, lcm_describe, lcm_expand, lcm_insert) to any MCP-compatible host.

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Readme

@vitaminm/lcm-mcp

MCP server that exposes @vitaminm/lcm-core memory tools to any MCP-compatible host: Claude Code, NanoClaw v2, custom agents, etc.

Tools exposed

| Tool | Purpose | |---|---| | lcm_grep | Full-text search of an agent's message history via SQLite FTS5 | | lcm_describe | Metadata for a message or summary by id | | lcm_expand | Recover original messages covered by a summary | | lcm_insert | Insert a new message into an agent's lcm.db |

Every tool takes an agent parameter; the server is multi-tenant and opens each agent's lcm.db on demand. DBs live at <LCM_DB_DIR>/<agent>/lcm.db.

Install

npm install -g @vitaminm/lcm-mcp
# or run via npx (preferred for MCP host configs)

Configure as MCP server

In Claude Code:

claude mcp add lcm "npx @vitaminm/lcm-mcp" --env LCM_DB_DIR=$HOME/.config/lcm

In NanoClaw v2 (per agent group):

ncl groups config add-mcp-server --group whatsapp_sage \
  --name lcm --command "npx @vitaminm/lcm-mcp" --env LCM_DB_DIR=$HOME/.config/lcm

Configuration

| Env var | Default | Meaning | |---|---|---| | LCM_DB_DIR | ~/.config/lcm | Base directory for per-agent lcm.db files |

Smoke test

LCM_DB_DIR=$HOME/.config/lcm npx @vitaminm/lcm-mcp
# (server runs on stdio; ctrl-C to exit)

To smoke-test against your existing nanoclaw v1 lcm.dbs without copying:

LCM_DB_DIR="$HOME/Library/Application Support/nanoclaw/agents" npx @vitaminm/lcm-mcp

(v1 already stores DBs at <base>/<agent>/lcm.db which matches the layout this server expects.)