Persistent Agent Memory Semantic Search

---
name: persistent-agent-memory-semantic-search
description: "Save and recall agent memory with semantic search. Context that persists across every session."
category: "AI & Agents"
author: community
version: "1.3.2"
icon: bot
---

# Neutron Memory

Every conversation, preference, and decision your agent makes can persist across sessions. Save what matters, and when you need it, semantic search finds the right context by meaning — not keywords. Every session builds on the last.

## How It Works

**Manual** — save and search with simple commands:
1. `./scripts/neutron-memory.sh save "user prefers dark mode" "Preferences"` — save context
2. `./scripts/neutron-memory.sh search "what theme does the user like"` — find it by meaning

**Automatic** (opt-in) — enable hooks to capture and recall automatically:
1. **Auto-Capture** saves conversations after each AI turn
2. **Auto-Recall** finds relevant memories before each AI turn and injects them as context

## Quick Start

See **[SETUP.md](SETUP.md)** for the full setup guide. TL;DR:

1. Get a free API key at **https://openclaw.vanarchain.com/** ($20 free credits, no credit card)
2. `export API_KEY=nk_your_key`
3. `./scripts/neutron-memory.sh test`

## Commands

### Save
```bash
./scripts/neutron-memory.sh save "Content to remember" "Title"
```

### Search
```bash
./scripts/neutron-memory.sh search "what do I know about X" 10 0.5
```

Arguments: `QUERY` `LIMIT` `THRESHOLD(0-1)`

### Diagnose
```bash
./scripts/neutron-memory.sh diagnose
```

Checks all prerequisites: curl, jq, API key, connectivity, and authentication.

## Hooks (Auto-Capture & Auto-Recall)

- `hooks/pre-tool-use.sh` — **Auto-Recall**: Queries memories before AI turn, injects relevant context
- `hooks/post-tool-use.sh` — **Auto-Capture**: Saves conversation after AI turn

Both are **disabled by default** (opt-in only). To enable:

```bash
export VANAR_AUTO_RECALL=true
export VANAR_AUTO_CAPTURE=true
```

## API Endpoints

- `POST /memory/save` — Save text (multipart/form-data)
- `POST /memory/search` — Semantic search (JSON body)

**Auth:** `Authorization: Bearer $API_KEY` — that's it. No other credentials needed.

## Security & Privacy

**No data is sent unless you run a command or explicitly enable auto-capture/auto-recall.** Both hooks are disabled by default.

This skill only sends data you explicitly save (or opt-in auto-captured conversations) to the Neutron API. Here's exactly what happens:

| Action | What's sent | Where |
|--------|------------|-------|
| **Save** | The text you pass to `save` or auto-captured conversation turns | `POST /memory/save` over HTTPS |
| **Search** | Your search query text | `POST /memory/search` over HTTPS |
| **Auto-Recall** | The user's latest message (used as search query) | `POST /memory/search` over HTTPS |
| **Auto-Capture** | `User: {message}\nAssistant: {response}` | `POST /memory/save` over HTTPS |

**What is NOT sent:**
- No local files are read or uploaded
- No environment variables (other than the API key for auth)
- No system information, file paths, or directory contents
- No data from other tools or skills

All communication is over HTTPS to `api-neutron.vanarchain.com`. The source code is fully readable in the `scripts/` and `hooks/` directories — three short bash scripts, no compiled binaries.