> ## Documentation Index
> Fetch the complete documentation index at: https://docs.lyzr.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Delete Session

> Clear all messages and memories from a session

The `delete_session()` method removes all messages and extracted memories for a specific session. Use it for GDPR compliance, user data cleanup, or resetting a conversation.

## Basic Usage

```python theme={null}
from lyzr import Cognis

cog = Cognis()

success = cog.delete_session(
    owner_id="user_alice",
    session_id="sess_001",
    agent_id="support_bot",  # optional
)
print(success)  # True
```

## Parameters

| Parameter    | Type  | Required | Description                                |
| ------------ | ----- | -------- | ------------------------------------------ |
| `owner_id`   | `str` | Yes      | User/tenant identifier                     |
| `session_id` | `str` | Yes      | Session to delete                          |
| `agent_id`   | `str` | No       | Agent scope (if memories are agent-scoped) |

## What Gets Deleted

* All raw messages stored in this session
* All memories extracted from this session's messages
* Session summaries associated with this session

## Async

```python theme={null}
success = await cog.adelete_session(
    owner_id="user_alice",
    session_id="sess_001",
)
```

<Note>
  The open-source equivalent is `m.clear(session_id="sess_001")` which clears memories scoped to a session.
</Note>