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# OpenClaw

Local, long term memory for [OpenClaw](https://openclaw.ai) agents using [Hindsight](https://vectorize.io/hindsight).

This plugin integrates [hindsight-embed](https://vectorize.io/hindsight/cli), a standalone daemon that bundles Hindsight's memory engine (API + PostgreSQL) into a single command. Everything runs locally on your machine, reuses the LLM you're already paying for, and costs nothing extra.

## Quick Start

**Step 1: Set up LLM for memory extraction**

Choose one provider and set its API key:

```bash
# Option A: OpenAI (uses gpt-4o-mini for memory extraction)
export OPENAI_API_KEY="sk-your-key"

# Option B: Anthropic (uses claude-3-5-haiku for memory extraction)
export ANTHROPIC_API_KEY="your-key"

# Option C: Gemini (uses gemini-2.5-flash for memory extraction)
export GEMINI_API_KEY="your-key"

# Option D: Groq (uses openai/gpt-oss-20b for memory extraction)
export GROQ_API_KEY="your-key"

# Option E: Claude Code (uses claude-sonnet-4-20250514, no API key needed)
export HINDSIGHT_API_LLM_PROVIDER=claude-code

# Option F: OpenAI Codex (uses gpt-4o-mini, no API key needed)
export HINDSIGHT_API_LLM_PROVIDER=openai-codex
```

**Step 2: Install the plugin**

```bash
openclaw plugins install @vectorize-io/hindsight-openclaw
```

**Step 3: Start OpenClaw**

```bash
openclaw gateway
```

The plugin will automatically:
- Start a local Hindsight daemon (port 9077)
- Capture conversations after each turn
- Inject relevant memories before agent responses

**Important:** The LLM you configure above is **only for memory extraction** (background processing). Your main OpenClaw agent can use any model you configure separately.

## How It Works

**Auto-Capture:** Every conversation is automatically stored after each turn. Facts, entities, and relationships are extracted in the background.

**Auto-Recall:** Before each agent response, relevant memories are automatically injected into the context (up to 1024 tokens). The agent uses past context without needing to call tools.

**Feedback Loop Prevention:** The plugin automatically strips injected memory tags (`<hindsight_memories>`) before storing conversations. This prevents recalled memories from being re-extracted as new facts, which would cause exponential memory growth and duplicate entries.

Traditional memory systems give agents a `search_memory` tool - but models don't use it consistently. Auto-recall solves this by injecting memories automatically before every turn.

## Configuration

### Plugin Settings

Optional settings in `~/.openclaw/openclaw.json`:

```json
{
  "plugins": {
    "entries": {
      "hindsight-openclaw": {
        "enabled": true,
        "config": {
          "apiPort": 9077,
          "daemonIdleTimeout": 0,
          "embedVersion": "latest"
        }
      }
    }
  }
}
```

**Options:**
- `apiPort` - Port for the openclaw profile daemon (default: `9077`)
- `daemonIdleTimeout` - Seconds before daemon shuts down from inactivity (default: `0` = never)
- `embedVersion` - hindsight-embed version (default: `"latest"`)
- `bankMission` - Custom context for the memory bank (optional)

### LLM Configuration

The plugin auto-detects your LLM provider from these environment variables:

| Provider | Env Var | Default Model | Notes |
|----------|---------|---------------|-------|
| OpenAI | `OPENAI_API_KEY` | `gpt-4o-mini` | |
| Anthropic | `ANTHROPIC_API_KEY` | `claude-3-5-haiku-20241022` | |
| Gemini | `GEMINI_API_KEY` | `gemini-2.5-flash` | |
| Groq | `GROQ_API_KEY` | `openai/gpt-oss-20b` | |
| Claude Code | `HINDSIGHT_API_LLM_PROVIDER=claude-code` | `claude-sonnet-4-20250514` | No API key needed |
| OpenAI Codex | `HINDSIGHT_API_LLM_PROVIDER=openai-codex` | `gpt-4o-mini` | No API key needed |

**Override with explicit config:**

```bash
export HINDSIGHT_API_LLM_PROVIDER=openai
export HINDSIGHT_API_LLM_MODEL=gpt-4o-mini
export HINDSIGHT_API_LLM_API_KEY=sk-your-key

# Optional: custom base URL (OpenRouter, Azure, vLLM, etc.)
export HINDSIGHT_API_LLM_BASE_URL=https://openrouter.ai/api/v1
```

**Example: Free OpenRouter model**

```bash
export HINDSIGHT_API_LLM_PROVIDER=openai
export HINDSIGHT_API_LLM_MODEL=xiaomi/mimo-v2-flash  # FREE!
export HINDSIGHT_API_LLM_API_KEY=sk-or-v1-your-openrouter-key
export HINDSIGHT_API_LLM_BASE_URL=https://openrouter.ai/api/v1
```

### External API (Advanced)

Connect to a remote Hindsight API server instead of running a local daemon. This is useful for:

- **Shared memory** across multiple OpenClaw instances
- **Production deployments** with centralized memory storage
- **Team environments** where agents share knowledge

#### Plugin Configuration

Configure in `~/.openclaw/openclaw.json`:

```json
{
  "plugins": {
    "entries": {
      "hindsight-openclaw": {
        "enabled": true,
        "config": {
          "hindsightApiUrl": "https://your-hindsight-server.com",
          "hindsightApiToken": "your-api-token"
        }
      }
    }
  }
}
```

**Options:**
- `hindsightApiUrl` - Full URL to external Hindsight API (e.g., `https://mcp.hindsight.example.com`)
- `hindsightApiToken` - API token for authentication (optional, only if API requires auth)

#### Environment Variables (Alternative)

You can also configure via environment variables:

```bash
export HINDSIGHT_EMBED_API_URL=https://your-hindsight-server.com
export HINDSIGHT_EMBED_API_TOKEN=your-api-token  # Optional

openclaw gateway
```

**Note:** Plugin config takes precedence over environment variables.

#### Behavior

When external API mode is enabled:
- **No local daemon** is started (no hindsight-embed process)
- **Health check** runs on startup to verify API connectivity
- **All memory operations** (retain, recall, reflect) go to the external API
- **Faster startup** since no local PostgreSQL or embedding models are needed

#### Verification

Check OpenClaw logs for external API mode:

```bash
tail -f /tmp/openclaw/openclaw-*.log | grep Hindsight

# Should see on startup:
# [Hindsight] External API mode enabled: https://your-hindsight-server.com
# [Hindsight] External API health check passed
```

If you see daemon startup messages instead, verify your configuration is correct.

## Inspecting Memories

### Check Configuration

View the daemon config that was written by the plugin:

```bash
cat ~/.hindsight/profiles/openclaw.env
```

This shows the LLM provider, model, port, and other settings the daemon is using.

### Check Daemon Status

```bash
# Check if daemon is running
uvx hindsight-embed@latest -p openclaw daemon status

# View daemon logs
tail -f ~/.hindsight/profiles/openclaw.log
```

### Query Memories

```bash
# Search memories
uvx hindsight-embed@latest -p openclaw memory recall openclaw "user preferences"

# View recent memories
uvx hindsight-embed@latest -p openclaw memory list openclaw --limit 10

# Open web UI (uses openclaw profile's daemon)
uvx hindsight-embed@latest -p openclaw ui
```

## Troubleshooting

### Plugin not loading

```bash
openclaw plugins list | grep hindsight
# Should show: ✓ enabled │ Hindsight Memory │ ...

# Reinstall if needed
openclaw plugins install @vectorize-io/hindsight-openclaw
```

### Daemon not starting

```bash
# Check daemon status (note: -p openclaw uses the openclaw profile)
uvx hindsight-embed@latest -p openclaw daemon status

# View logs for errors
tail -f ~/.hindsight/profiles/openclaw.log

# Check configuration
cat ~/.hindsight/profiles/openclaw.env

# List all profiles
uvx hindsight-embed@latest profile list
```

### No API key error

Make sure you've set one of the provider API keys (or use a provider that doesn't require one):

```bash
# Option 1: OpenAI
export OPENAI_API_KEY="sk-your-key"

# Option 2: Anthropic
export ANTHROPIC_API_KEY="your-key"

# Option 3: Claude Code (no API key needed)
export HINDSIGHT_API_LLM_PROVIDER=claude-code

# Option 4: OpenAI Codex (no API key needed)
export HINDSIGHT_API_LLM_PROVIDER=openai-codex

# Verify it's set
echo $OPENAI_API_KEY
# or
echo $HINDSIGHT_API_LLM_PROVIDER
```

### Verify it's working

Check gateway logs for memory operations:

```bash
tail -f /tmp/openclaw/openclaw-*.log | grep Hindsight

# Should see on startup:
# [Hindsight] ✓ Using provider: openai, model: gpt-4o-mini
# or
# [Hindsight] ✓ Using provider: claude-code, model: claude-sonnet-4-20250514

# Should see after conversations:
# [Hindsight] Retained X messages for session ...
# [Hindsight] Auto-recall: Injecting X memories
```