BrainLayer — Knowledge Pipeline

External repo: github.com/EtanHey/brainlayer Formerly "Zikaron". CLI: brainlayer. MCP tools: brain_search, brain_store, brain_recall.

BrainLayer indexes Claude Code conversation history into a searchable vector database. Query past solutions, code patterns, and debugging sessions.

MCP Tools (3 available)

Old brainlayer_* names still work as backward-compat aliases.

CLI Quick Reference

bash
1# Search past conversations
2brainlayer search "how did I implement authentication"
3brainlayer search "error handling" --project golems
4
5# Index conversations
6brainlayer index
7brainlayer index -p project-name
8
9# Run enrichment (local LLM metadata extraction)
10brainlayer enrich
11
12# Stats
13brainlayer stats
14
15# Interactive dashboard
16brainlayer dashboard

MCP Config

json
1{
2  "mcpServers": {
3    "brainlayer": {
4      "command": "brainlayer-mcp"
5    }
6  }
7}

Storage

text
1~/.local/share/brainlayer/
2├── brainlayer.db    # sqlite-vec database (vectors + metadata, ~1.4GB)
3└── prompts/         # Deduplicated system prompts

When to Use

• Finding past solutions: "How did I handle that API rate limiting before?"
• Debugging patterns: "What error messages have I seen with this library?"
• Code reuse: "Find my previous implementation of pagination"
• File history: "What sessions touched this file?"
• Regression detection: "What changed since this file last worked?"