@Marvin How can I set a tag into a flow during runtime? I have a parameter that is an ID which is only send when the flow is executed, and I want to attache this id as a tag to my flow run, is that possible?

Let me search the Prefect documentation for the best way to set a tag into a flow during runtime. I'll also check for relevant GitHub issues for any additional insights. Let's think step-by-step: 1. Search the Prefect documentation for adding tags to a flow at runtime. 2. Look up GitHub issues related to setting tags dynamically in Prefect. I'll start with these steps. It looks like there isn't a straightforward example or direct documentation specifically about setting tags dynamically at runtime. However, you can leverage Prefect's

runtime

context to access flow run parameters and use Prefect's client to add tags to a flow run. Here's how you can approach it: 1. Use the

prefect.runtime.context

to access the flow run parameters. 2. Interact with the Prefect API to update the flow run with the appropriate tags. Here's an example of how you could implement this: ### Code Example

python
from prefect import flow, task
from prefect.runtime import flow_run
from prefect.client import get_client


@task
def add_tags(id: str):
    client = get_client()
    current_flow_run_id = flow_run.id
    current_tags = flow_run.tags
    new_tags = current_tags | {id}  # Add new tag to existing tags

    # Update flow run tags
    client.update_flow_run(current_flow_run_id, tags=list(new_tags))


@flow
def my_flow(id: str):
    add_tags(id)
    # Your flow logic here


# Example usage
my_flow("unique-flow-id")

In this example: 1. Retrieve the Flow Run ID: This is necessary to identify which flow run to update. 2. Retrieve Existing Tags: Use

flow_run.tags

to get the current tags. 3. Update Tags: Add the new ID to the existing set of tags. 4. Update the Flow Run: Use the Prefect client’s

update_flow_run

function to apply the new tags. References: - Prefect Runtime Context - Prefect Client - Flow Run Management This should allow you to dynamically set a tag to your flow during runtime based on the provided ID parameter.