Overview
The OpenClaw plugin gives claude-mem persistent memory to agents running on the OpenClaw gateway. It handles three things:- Observation recording — Captures tool usage from OpenClaw’s embedded runner and sends it to the claude-mem worker for AI processing
- System prompt context injection — Injects the observation timeline into each agent’s system prompt via the
before_prompt_buildhook, keepingMEMORY.mdfree for agent-curated memory - Observation feed — Streams new observations to messaging channels (Telegram, Discord, Slack, etc.) in real-time via SSE
OpenClaw’s embedded runner (
pi-embedded) calls the Anthropic API directly without spawning a claude process, so claude-mem’s standard hooks never fire. This plugin bridges that gap by using OpenClaw’s event system to capture the same data.How It Works
Event Lifecycle
Agent starts (before_agent_start)
When an OpenClaw agent starts, the plugin initializes a session by sending the user prompt to
POST /api/sessions/init so the worker can create a new session and start processing.Context injected (before_prompt_build)
Before each LLM call, the plugin fetches the observation timeline from the worker’s
/api/context/inject endpoint and returns it as appendSystemContext. This injects cross-session context directly into the agent’s system prompt without writing any files.The context is cached for 60 seconds to avoid re-fetching on every LLM turn within a session.Tool use recorded (tool_result_persist)
Every time the agent uses a tool (Read, Write, Bash, etc.), the plugin sends the observation to
POST /api/sessions/observations with the tool name, input, and truncated response (max 1000 chars). This is fire-and-forget — it doesn’t block the agent from continuing work.Tools prefixed with memory_ are skipped to avoid recursive recording.Agent finishes (agent_end)
When the agent completes, the plugin extracts the last assistant message and sends it to
POST /api/sessions/summarize, then calls POST /api/sessions/complete to close the session. Both are fire-and-forget.System Prompt Context Injection
The plugin injects cross-session observation context into each agent’s system prompt via OpenClaw’sbefore_prompt_build hook. The content comes from the worker’s GET /api/context/inject?projects=<project> endpoint, which generates a formatted markdown timeline from the SQLite database.
This approach keeps MEMORY.md under the agent’s control for curated long-term memory (decisions, preferences, durable facts), while the observation timeline is delivered through the system prompt where it belongs.
Context is cached for 60 seconds per project to avoid re-fetching on every LLM turn. The cache is cleared on gateway restart. Use
syncMemoryFileExclude to opt specific agents out of context injection entirely.Observation Feed (SSE → Messaging)
The plugin runs a background service that connects to the worker’s SSE stream (GET /stream) and forwards new_observation events to a configured messaging channel. This lets you monitor what your agents are learning in real-time from Telegram, Discord, Slack, or any supported OpenClaw channel.
The SSE connection uses exponential backoff (1s → 30s) for automatic reconnection.
Setting Up the Observation Feed
The observation feed sends a formatted message to your OpenClaw channel every time claude-mem creates a new observation. Each message includes the observation title and subtitle so you can follow along as your agents work. Messages look like this in your channel:Step 1: Choose your channel
The observation feed works with any channel that your OpenClaw gateway has configured. You need two pieces of information:- Channel type — The name of the channel plugin registered with OpenClaw (e.g.,
telegram,discord,slack,signal,whatsapp,line) - Target ID — The chat ID, channel ID, or user ID where messages should be sent
Telegram
Telegram
Channel type:
telegramTarget ID: Your Telegram chat ID (numeric). To find it:- Message @userinfobot on Telegram
- It will reply with your chat ID (e.g.,
123456789) - For group chats, the ID is negative (e.g.,
-1001234567890)
Discord
Discord
Channel type:
discordTarget ID: The Discord channel ID. To find it:- Enable Developer Mode in Discord (Settings → Advanced → Developer Mode)
- Right-click the channel → Copy Channel ID
Slack
Slack
Channel type:
slackTarget ID: The Slack channel ID (not the channel name). To find it:- Open the channel in Slack
- Click the channel name at the top
- Scroll to the bottom of the channel details — the ID looks like
C01ABC2DEFG
Signal
Signal
Channel type:
signalTarget ID: The Signal phone number or group ID configured in your OpenClaw gateway.WhatsApp
Channel type:
whatsappTarget ID: The WhatsApp phone number or group JID configured in your OpenClaw gateway.LINE
LINE
Channel type:
lineTarget ID: The LINE user ID or group ID from the LINE Developer Console.Step 2: Add the config to your gateway
Add theobservationFeed block to your claude-mem plugin config in your OpenClaw gateway configuration:
Step 3: Verify the connection
After starting the gateway, check that the feed is connected:-
Check the logs — You should see:
-
Use the status command — Run
/claude_mem_feedin any OpenClaw chat to see: - Trigger a test — Have an agent do some work. When the worker processes the tool usage into an observation, you’ll receive a message in your configured channel.
The feed only sends
new_observation events — not raw tool usage. Observations are generated asynchronously by the worker’s AI agent, so there’s a 1-2 second delay between tool use and the observation message appearing in your channel.Troubleshooting the Feed
| Symptom | Cause | Fix |
|---|---|---|
Connection: disconnected | Worker not running or wrong port | Check workerPort config, run npm run worker:status |
Connection: reconnecting | Worker was running but connection dropped | The plugin auto-reconnects with backoff — wait up to 30s |
Unknown channel type in logs | Channel plugin not loaded on gateway | Verify your OpenClaw gateway has the channel plugin configured |
| No messages appearing | Feed connected but no observations being created | Check that agents are running and the worker is processing observations |
Observation feed disabled in logs | enabled is false or missing | Set observationFeed.enabled to true |
Observation feed misconfigured in logs | Missing channel or to | Both channel and to are required |
Installation
Run this one-liner to install everything automatically:Manual Configuration
Addclaude-mem to your OpenClaw gateway’s plugin configuration:
The claude-mem worker service must be running on the same machine as the OpenClaw gateway. The plugin communicates with it via HTTP on
localhost:37777.Configuration
Project name for scoping observations in the memory database. All observations from this gateway will be stored under this project name.
Inject observation context into the agent system prompt via
before_prompt_build hook. When true, agents receive cross-session context automatically. Set to false to disable context injection entirely (observations are still recorded).Agent IDs excluded from automatic context injection. Useful for agents that curate their own memory and don’t need the observation timeline (e.g.,
["snarf", "debugger"]). Observations are still recorded for excluded agents — only the context injection is skipped.Port for the claude-mem worker service. Override if your worker runs on a non-default port.
Enable live observation streaming to messaging channels.
Channel type:
telegram, discord, signal, slack, whatsapp, lineTarget chat/user/channel ID to send observations to.
Commands
/claude_mem_feed
Show or toggle the observation feed status./claude_mem_status
Check worker health and session status.Architecture
The plugin uses HTTP calls to the already-running claude-mem worker service rather than spawning subprocesses. This means:- No
bundependency required on the gateway - No process spawn overhead per event
- Uses the same worker API that Claude Code hooks use
- All operations are non-blocking (fire-and-forget where possible)
Session Tracking
Each OpenClaw agent session gets a uniquecontentSessionId (format: openclaw-<sessionKey>-<timestamp>) that maps to a claude-mem session in the worker. The plugin tracks:
sessionIds— Maps OpenClaw session keys to content session IDscontextCache— TTL cache (60s) for context injection responses, keyed by project
gateway_start.
Requirements
- Claude-mem worker service running on
localhost:37777(or configured port) - OpenClaw gateway with plugin support
- Network access between gateway and worker (localhost only)

