Exclude an instruction from history

[Amoki]

Question

We want to provide some real time context to an agent. We currently use an @instructions to provide the context to the agent. The next message, the context may have changed but the agent seems to still remember the previous instructions from the message_history so its response is out of date.

Is there a way to exclude this specific instructions (or system_prompt) from being stored in the history?

Thanks for this amazing lib.

Additional Context

No response

[DouweM]

@Amoki The old instructions should not be used when you use instructions, only with system_prompt. See https://ai.pydantic.dev/agents/#instructions:

when an explicit message_history is provided in a call to Agent.run and similar methods, instructions from any existing messages in the history are not included in the request to the model — only the instructions of the current agent are included.

So the model should always see only the most recently dynamically generated instructions.

If you're seeing something else, can you share some code that reproduces the issue?

[github-actions]

This issue is stale, and will be closed in 3 days if no reply is received.

[Amoki]

It may be an issue own our side, I'll reopen if not.
Sorry!