Sessions

Sessions provide conversation context isolation for each sender. Every DM, group chat, or thread gets its own session with persistent message history, model settings, and conversation state.

What is a Session?

A session is a conversation context that includes:

Message History: Full conversation transcript
Agent State: Current model, settings, and configuration
Metadata: Sender info, channel, timestamps
Delivery Context: Last known route for replies
Usage Tracking: Token counts and model information

Session Keys

Session Key Format

Each session has a unique key that identifies the conversation:

agent:{agentId}:{channel}:{accountId}:{chatType}:{peerId}

Examples:

agent:main:telegram:default:direct:123456789
agent:main:discord:default:group:987654321
agent:coding:slack:work:channel:C01234567
agent:main:whatsapp:default:group:120363012345678901@g.us

Location: src/routing/session-key.ts:142

Session Key Components

Component	Description	Example
`agent`	Prefix (always “agent”)	`agent`
`agentId`	Agent identifier	`main`, `coding`
`channel`	Messaging platform	`telegram`, `discord`
`accountId`	Channel account ID	`default`, `work`
`chatType`	Chat type	`direct`, `group`, `channel`
`peerId`	User/group identifier	`123456789`

Location: src/routing/session-key.ts:90

DM Session Scoping

Direct messages can share or separate sessions:

{
  "session": {
    "dmScope": "main"
  }
}

DM Scope Options:

main: All DMs share one session (default)
per-peer: Separate session per sender
per-channel-peer: Separate per sender+channel
per-account-channel-peer: Separate per account+channel+sender

Example with main (shared):

agent:main:main

Example with per-peer:

agent:main:direct:alice
agent:main:direct:bob

Example with per-channel-peer:

agent:main:telegram:direct:alice
agent:main:discord:direct:alice

Location: src/routing/session-key.ts:149, src/config/types.base.ts:6

Identity Links

Link identities across platforms to share sessions:

{
  "session": {
    "dmScope": "per-peer",
    "identityLinks": {
      "alice": [
        "telegram:123456789",
        "discord:987654321",
        "+15551234567"
      ]
    }
  }
}

Now Alice’s messages from Telegram, Discord, and WhatsApp all use:

agent:main:direct:alice

Location: src/routing/session-key.ts:190, src/config/types.base.ts:92

Session Storage

Storage Location

Sessions are stored as JSONL files:

~/.openclaw/sessions/
├── agent:main:telegram:default:direct:123456789.jsonl
├── agent:main:discord:default:group:987654321.jsonl
├── agent:coding:slack:work:channel:C01234567.jsonl
└── sessions.json

Location: src/config/sessions/paths.ts:1

Session Transcript Format

Each .jsonl file contains one message per line:

{"timestamp":"2026-02-19T10:00:00.000Z","message":{"role":"user","content":"Hello!"}}
{"timestamp":"2026-02-19T10:00:05.000Z","message":{"role":"assistant","content":"Hi! How can I help?"}}
{"timestamp":"2026-02-19T10:01:00.000Z","message":{"role":"user","content":"What's the weather?"}}
{"timestamp":"2026-02-19T10:01:03.000Z","message":{"role":"assistant","content":"I'll check for you..."}}

Line Format:

type TranscriptLine = {
  timestamp: string;
  message: {
    role: "user" | "assistant" | "system";
    content: string | Array<ContentBlock>;
  };
};

Location: src/config/sessions/transcript.ts:1, src/gateway/session-utils.fs.ts:69

Session Metadata

Session metadata is stored in sessions.json:

{
  "agent:main:telegram:default:direct:123456789": {
    "sessionId": "abc123-def456",
    "updatedAt": 1708344000000,
    "label": "Alice (Telegram)",
    "channel": "telegram",
    "chatType": "direct",
    "model": "anthropic/claude-opus-4-6",
    "inputTokens": 1234,
    "outputTokens": 567,
    "totalTokens": 1801,
    "compactionCount": 2,
    "lastChannel": "telegram",
    "lastTo": "123456789"
  }
}

Key Fields:

sessionId: Unique UUID for this session
updatedAt: Last message timestamp (ms)
label: Display name for UI
channel: Originating channel
chatType: direct, group, channel, or thread
model: Current AI model
compactionCount: Number of compactions performed
lastChannel, lastTo: Delivery context for replies

Location: src/config/sessions/types.ts:25, src/config/sessions/store.ts:1

Session Lifecycle

Session Creation

Sessions are created automatically on first message:

User sends first message
Router generates session key based on agent, channel, and sender
Gateway creates session with empty history
Agent processes message and generates response
Session saved to disk with metadata

Location: src/config/sessions/store.ts:1

Session Reset

Sessions can be reset manually or automatically: Manual Reset:

User: /new
Bot: [Session reset. Starting fresh conversation.]

Configuration:

{
  "session": {
    "resetTriggers": ["/new", "/reset"],
    "reset": {
      "mode": "daily",
      "atHour": 0
    },
    "resetByType": {
      "direct": {
        "mode": "idle",
        "idleMinutes": 60
      },
      "group": {
        "mode": "daily",
        "atHour": 3
      }
    }
  }
}

Reset Modes:

daily: Reset at specific hour each day
idle: Reset after N minutes of inactivity

Location: src/config/sessions/reset.ts:1, src/config/types.base.ts:71

Session Compaction

When a session grows too large, OpenClaw compacts it:

Trigger: Session exceeds token limit (e.g., 100k tokens)
Compaction LLM: Summarizes conversation history
Summary Injected: Replaces old messages with summary
Recent Messages Kept: Last N messages preserved
Transcript Updated: Compaction event logged

Compaction Entry:

{"type":"compaction","timestamp":"2026-02-19T12:00:00.000Z","summary":"Discussed weather, traffic, and dinner plans."}

Location: src/agents/pi-embedded-subscribe.handlers.compaction.ts:1

Compaction preserves conversation continuity while reducing token usage and cost.

Session Configuration

Basic Settings

{
  "session": {
    "scope": "per-sender",
    "dmScope": "main",
    "idleMinutes": 60,
    "store": "~/.openclaw/sessions"
  }
}

Location: src/config/types.base.ts:87

Reset Configuration

{
  "session": {
    "resetTriggers": ["/new", "/reset", "/fresh"],
    "reset": {
      "mode": "idle",
      "idleMinutes": 120
    },
    "resetByType": {
      "direct": {
        "mode": "idle",
        "idleMinutes": 60
      },
      "group": {
        "mode": "daily",
        "atHour": 3
      },
      "thread": {
        "mode": "idle",
        "idleMinutes": 30
      }
    },
    "resetByChannel": {
      "discord": {
        "mode": "idle",
        "idleMinutes": 10080
      }
    }
  }
}

Location: src/config/types.base.ts:71

Maintenance Configuration

{
  "session": {
    "maintenance": {
      "mode": "enforce",
      "pruneAfter": "30d",
      "maxEntries": 500,
      "rotateBytes": "10mb"
    }
  }
}

Maintenance Options:

mode: warn (log only) or enforce (apply limits)
pruneAfter: Remove sessions older than duration (e.g., 30d, 12h)
maxEntries: Maximum session count in sessions.json
rotateBytes: Rotate sessions.json when size exceeds limit

Location: src/config/types.base.ts:113

Session Pruning

Automatic Pruning

Old sessions are pruned automatically: Default Behavior:

Sessions older than 30 days are warned
Mode defaults to warn (no automatic deletion)

Enable Enforcement:

{
  "session": {
    "maintenance": {
      "mode": "enforce",
      "pruneAfter": "30d"
    }
  }
}

Location: src/config/sessions/store.ts:1

Manual Pruning

# List old sessions
oclaw sessions list --older-than 30d

# Delete old sessions
oclaw sessions prune --older-than 30d

# Delete specific session
oclaw sessions delete agent:main:telegram:default:direct:123456789

Location: src/commands/sessions.ts:1

Archival

Before pruning, sessions are archived:

~/.openclaw/sessions/archive/
├── 2026-02-19T12-00-00-agent-main-telegram-default-direct-123456789.jsonl.gz
└── archive.json

Location: src/gateway/session-utils.fs.ts:1

Session Management

List Sessions

# List all sessions
oclaw sessions list

# List active sessions (messaged in last 24h)
oclaw sessions list --active

# List by channel
oclaw sessions list --channel telegram

# List by agent
oclaw sessions list --agent coding

Output:

SESSION KEY                                      AGENT   CHANNEL   LAST MESSAGE    TOKENS
agent:main:telegram:default:direct:123456789     main    telegram  2 minutes ago   1.8k
agent:main:discord:default:group:987654321       main    discord   5 minutes ago   12.3k
agent:coding:slack:work:channel:C01234567        coding  slack     1 hour ago      45.6k

Location: src/commands/sessions.ts:1

Inspect Session

# Show session metadata
oclaw sessions show agent:main:telegram:default:direct:123456789

# Show full transcript
oclaw sessions show agent:main:telegram:default:direct:123456789 --transcript

# Export session to file
oclaw sessions export agent:main:telegram:default:direct:123456789 > session.jsonl

Location: src/commands/sessions.ts:1

Reset Session

# Reset specific session
oclaw sessions reset agent:main:telegram:default:direct:123456789

# Reset all sessions for a channel
oclaw sessions reset --channel telegram

# Reset all sessions for an agent
oclaw sessions reset --agent coding

Location: src/commands/sessions.ts:1

Session Persistence

Write Lock

Session writes are protected by a lock to prevent corruption:

await acquireSessionWriteLock(sessionKey, async () => {
  // Write session data
  await fs.writeFile(sessionPath, data);
});

Location: src/agents/session-write-lock.ts:4

Atomic Writes

Session updates use atomic write-then-rename:

Write to .tmp file
Verify write succeeded
Rename to final path

Location: src/config/sessions/store.ts:1

Cache Management

Session metadata is cached in memory:

TTL: 45 seconds (default)
Invalidation: On write
Size Limit: 5000 entries

Location: src/config/sessions/store.ts:39

Advanced Features

Thread Sessions

Threaded conversations create sub-sessions:

Parent: agent:main:discord:default:channel:987654321
Thread: agent:main:discord:default:channel:987654321:thread:1234567890

Location: src/routing/session-key.ts:254

Group History Keys

Group chats use a shared history key:

const historyKey = buildGroupHistoryKey({
  channel: "telegram",
  accountId: "default",
  peerKind: "group",
  peerId: "-1001234567890"
});
// => "telegram:default:group:-1001234567890"

Location: src/routing/session-key.ts:236

Session Send Policy

Control which sessions can send outbound messages:

{
  "session": {
    "sendPolicy": {
      "default": "deny",
      "rules": [
        {
          "action": "allow",
          "match": {
            "channel": "telegram",
            "chatType": "direct"
          }
        },
        {
          "action": "allow",
          "match": {
            "keyPrefix": "agent:main:discord"
          }
        }
      ]
    }
  }
}

Location: src/config/types.base.ts:50

Troubleshooting

Session Not Loading

# Check if session exists
oclaw sessions list | grep <session-key>

# Verify session file
ls -la ~/.openclaw/sessions/

# Check session metadata
oclaw sessions show <session-key>

Session Corruption

# Validate session transcript
oclaw sessions validate <session-key>

# Restore from backup
cp ~/.openclaw/sessions/archive/<backup>.jsonl.gz ~/.openclaw/sessions/
gzip -d ~/.openclaw/sessions/<backup>.jsonl.gz

High Token Usage

# List sessions by token count
oclaw sessions list --sort-by tokens

# Force compaction
oclaw sessions compact <session-key>

# Reset high-token sessions
oclaw sessions reset --min-tokens 50000

Session files contain full conversation history. Back up regularly and secure access.

Next Steps

Message Routing

Configure multi-agent routing rules

Agent Configuration

Customize agent behavior and models

Channel Setup

Connect messaging platforms

Session Commands

CLI reference for session management

​Sessions

​What is a Session?

​Session Keys

​Session Key Format

​Session Key Components

​DM Session Scoping

​Identity Links

​Session Storage

​Storage Location

​Session Transcript Format

​Session Metadata

​Session Lifecycle

​Session Creation

​Session Reset

​Session Compaction

​Session Configuration

​Basic Settings

​Reset Configuration

​Maintenance Configuration

​Session Pruning

​Automatic Pruning

​Manual Pruning

​Archival

​Session Management

​List Sessions

​Inspect Session

​Reset Session

​Session Persistence

​Write Lock

​Atomic Writes

​Cache Management

​Advanced Features

​Thread Sessions

​Group History Keys

​Session Send Policy

​Troubleshooting

​Session Not Loading

​Session Corruption

​High Token Usage

​Next Steps

Message Routing

Agent Configuration

Channel Setup

Session Commands

Sessions

What is a Session?

Session Keys

Session Key Format

Session Key Components

DM Session Scoping

Identity Links

Session Storage

Storage Location

Session Transcript Format

Session Metadata

Session Lifecycle

Session Creation

Session Reset

Session Compaction

Session Configuration

Basic Settings

Reset Configuration

Maintenance Configuration

Session Pruning

Automatic Pruning

Manual Pruning

Archival

Session Management

List Sessions

Inspect Session

Reset Session

Session Persistence

Write Lock

Atomic Writes

Cache Management

Advanced Features

Thread Sessions

Group History Keys

Session Send Policy

Troubleshooting

Session Not Loading

Session Corruption

High Token Usage

Next Steps