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Single vs Multi-Session Modes

In most development and scripting use cases, having only one session active at a time is sufficient. The challenge comes when productionizing agents.

By default, AgentOps operates in single-session mode. All of the base SDK functions work as expected.

As soon as you create a second session, AgentOps enters Multi-Session Mode. As long as more than one session is active, the base SDK functions will no longer work.

If multiple sessions exist, you are expected to call the function on the relevant session. Ex:

Functions on agentops will no longer work in multi-session mode

When in multi-session mode:

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Entering Multi-Session Mode

Creating more than one session puts the AgentOps Client into multi-session mode.

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Single Session Examples

All of these examples show using AgentOps in single session mode

agentops.init()
agentops.end_session(end_state="Success")

agentops.init(auto_start_session=False)
session = agentops.start_session()
session.end_session(end_state="Success")

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Multi Session Examples

As soon as you create a second session, the SDK operates in multi-session mode.

session_1 = agentops.init()
session_2 = agentops.start_session()

agentops.init(auto_start_session=False)
session_1 = agentops.start_session()
session_2 = agentops.start_session()

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Managing Multiple Sessions

After creating a session, be sure to have the session reference available anywhere where data related to that session is collected.

The Session object has methods as described in the docs page.

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Start Sessions

Start a new session with init() or start_session() depending on whether or not AgentOps has already been initialized.

session_1 = agentops.init()
session_2 = agentops.start_session()

or

agentops.init(auto_start_session=False)
session_1 = agentops.start_session()
session_2 = agentops.start_session()

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Stop Sessions

To stop a currently active session, call end_session() on the session object.

session = agentops.start_session()
session.end_session()

If you lose access to the session object before calling end_session(), the session will be marked as Indeterminate.

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Functions on Sessions

All methods are described in the docs page.

These methods must be called on the session object:

session = agentops.start_session()
session.record(Event(...))

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Examples

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Assigning LLM Calls

When we have multiple active sessions, it’s impossible for AgentOps to know which session a particular LLM call belongs to without a little help.

To track an LLM call, use session.patch()

import agentops
import openai

session = agentops.start_session()
messages = [{"role": "user", "content": "Hello"}]
response = session.patch(openai.chat.completions.create)(
    model="gpt-3.5-turbo",
    messages=messages,
    temperature=0.5,
)

If you’re using the create function multiple times, you can create a new function with the same method.

observed_create = session.patch(openai.chat.completions.create)
obs_response = observed_create(
    model="gpt-3.5-turbo",
    messages=messages,
    temperature=0.5,
)

If you make an LLM completion call without one of these methods while you currently have more than one active session, a MultiSessionException will be raised.

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Exceptions

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MultiSessionException

”If multiple sessions exist, you must use session.function(). Example: session.add_tags(…) instead of agentops.add_tags(…).”

Receiving this exception means that you tried to perform a function on the SDK base, but at runtime had more than one active session.

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NoSessionException

A session action was attempted while no session existed on the client.