logosdb-memory

name	logosdb-memory
description	Semantic memory for Mistral Vibe — index code/docs, search across sessions, forget outdated knowledge using LogosDB + Mistral embeddings.
license	MIT
compatibility	Python 3.9+
user-invocable	true
allowed-tools	["bash","read_file","grep"]

LogosDB Memory Skill

Gives Vibe persistent semantic memory across sessions by indexing your project into a local LogosDB vector store and performing sub-millisecond semantic search.

Prerequisites

pip install 'logosdb[mistral]'   # or: pip install logosdb requests numpy
export MISTRAL_API_KEY="..."

Setup

Add LOGOSDB_PATH to your environment (or .vibe/.env) to set where databases are stored (default: ./.logosdb):

LOGOSDB_PATH=./.logosdb
MISTRAL_API_KEY=your_key_here

Slash commands (inside Vibe)

Three focused slash commands are available once this skill is enabled:

Command	Example
/ldb-index	/ldb-index ./src --namespace=backend
/ldb-search	/ldb-search "JWT validation" --namespace=backend
/ldb-forget	/ldb-forget --namespace=backend --id=42

Example session

$ cd myproject && vibe

> /ldb-index ./src --namespace=backend
Indexed 42 files into 'backend' collection

> Find where we handle JWT validation
Searching... Found 3 matches:
  1. src/auth/jwt.ts (score: 0.94)
  2. src/middleware/auth.ts (score: 0.87)
  3. src/utils/token.ts (score: 0.72)

> Show me the first one
[Vibe displays src/auth/jwt.ts with explanation]

> /ldb-search "retry logic" --namespace=backend --top-k=3
Searching... Found 3 matches:
  1. src/utils/retry.ts (score: 0.91)
  2. src/api/client.ts (score: 0.83)
  3. src/jobs/queue.ts (score: 0.77)

> /ldb-forget --namespace=backend --id=42
Deleted 1 entry from 'backend' namespace.

Natural-language queries (> Find where we...) also work without a slash command — Vibe calls logosdb-vibe search automatically when it understands you are asking about the indexed codebase.

Standalone CLI

logosdb-vibe index ./src --namespace code
logosdb-vibe search "retry logic" --namespace code --top-k 5
logosdb-vibe forget --namespace code --id 42
logosdb-vibe info --namespace code
logosdb-vibe list

Python API (inside a Vibe tool or script)

from logosdb.vibe import VibeMemory

mem = VibeMemory(uri="./.logosdb")        # reads MISTRAL_API_KEY from env

# Index an entire directory
mem.index("./src", namespace="code")

# Search
results = mem.search("where is JWT validated?", namespace="code", top_k=5)
for r in results:
    print(r["score"], r["file"], r["text"][:120])

# Forget by semantic match
mem.forget(namespace="code", query="deprecated auth module")

# Forget by ID (from search result)
mem.forget(namespace="code", memory_id=42)

# Stats
print(mem.info())

Namespaces

Use separate namespaces to keep concerns isolated:

Namespace	Content
code	Source files (./src, ./lib)
docs	Markdown, RST (./docs)
tests	Test files (./tests)
notes	Free-form session notes

MCP alternative

Vibe also supports MCP servers. To use the same LogosDB server as Claude Code, see .vibe/config.toml in this project for the [[mcp_servers]] configuration.