BrainBox

Session 1: agent greps for auth.ts, reads it, edits it (2000 tokens) Session 5: agent recalls auth.ts directly, skips search (500 tokens saved) Session 20: auth.ts is a superhighway — instant recall, zero search cost

That's it. The postinstall script automatically:
- AddsPostToolUsehook to~/.claude/settings.json(learns from every file read/edit/search)
- AddsUserPromptSubmithook (injects neural recall into prompts automatically)
- Registers the MCP server viaclaude mcp add(6 tools for manual recall/recording)
- Creates~/.brainbox/database directory

BrainBox learns passively from your next Claude Code session. No configuration needed.

ThemacOS daemon(system-wide FSEvents file watcher) is completely separate and opt-in:

# Only if you want BrainBox to learn from VS Code, Xcode, vim, shell, etc. brainbox daemon install # installs LaunchAgent, starts watching brainbox daemon status # check if running brainbox daemon uninstall # remove completely

The daemon watches file changes across all your editors — not just Claude Code. It requires explicit opt-in because it registers a LaunchAgent and monitors your configured project directories.

brainbox uninstall # removes hooks + MCP server, preserves database

Kill cold start by bootstrapping from your existing git history:

brainbox bootstrap --repo /path/to/project --imports

This seeds the neural network from git commit co-changes and import graphs so BrainBox starts with knowledge instead of from zero.

BrainBox implements neuroscience-inspired learning:

- Neurons— files, tools, and errors you interact with
- Synapses— connections formed when things are accessed together ("neurons that fire together wire together")
- Myelination— frequently-used paths get faster (like muscle memory)
- Spreading activation— recalling one file activates related files
- Decay— unused connections weaken naturally, keeping the network clean

If you're not using Claude Code, you can run the MCP server standalone:

# 6 tools: record, recall, error, predict_next, stats, decay npx tsx node_modules/brainbox-hebbian/src/mcp.ts

brainbox recall "authentication login" brainbox record src/auth.ts --context "authentication" brainbox stats brainbox error "TypeError: cannot read 'token'" brainbox predict Read brainbox embed # add vector embeddings for semantic recall brainbox hubs # most connected neurons brainbox stale # decaying superhighways brainbox projects # list project tags brainbox sessions # recent sessions with intents brainbox streaks # anti-recall ignore streaks brainbox graph # ASCII neural network brainbox highways # show superhighways brainbox decay # weaken unused connections

Files accessed together form synapses. Accessauth.tsthensession.ts10 times and BrainBox learns they're related — recalling one activates the other.

When you fix a bug, BrainBox remembers which files fixed which errors. Next time a similar error appears, it suggests the fix files immediately.

After 20 Grep-Read-Edit chains, BrainBox predicts you'll Read after Grep and pre-loads likely files.

Strong synapses resist further strengthening (like real neural synapses). Prevents any single connection from dominating the network.

Files recalled but never opened get progressively stronger decay. Consecutive ignores escalate: 1st = 10%, 2nd = 19%, 3rd = 27%. Opening the file resets the streak.

Identify the most-connected neurons in your network and detect decaying superhighways before they fade.

Auto-tag file neurons by project. Recall scoped to current project reduces cross-project noise.

src/ hebbian.ts # Core engine: record, recall, decay, SNAP, BCM, spreading activation db.ts # SQLite schema: neurons, synapses, access_log, sessions embeddings.ts # Optional vector embeddings (all-MiniLM-L6-v2, 384 dims) installer.ts # Auto-installer: adds hooks + MCP to ~/.claude/settings.json mcp.ts # MCP server (6 tools) hook.ts # Claude Code PostToolUse hook prompt-hook.ts # Claude Code UserPromptSubmit hook kilo-plugin.ts # Kilo/OpenCode native plugin bootstrap.ts # Git/vault/import seeder daemon.ts # FSEvents file watcher (macOS, opt-in) cli.ts # CLI interface test.ts # 59 tests, all passing

- Node.js 18+
- macOS or Linux (FSEvents daemon is macOS-only, everything else is cross-platform)

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