Slack Prefect To Orchestra

Use this skill when the user wants to convert Prefect Slack notifications into an equivalent Orchestra pipeline alert or task. This covers both hook-based notifications — SlackWebhook block, @flow on_failure/on_completion hooks, Prefect Automation Slack notifications — AND explicit mid-flow Slack messages, including a plain @task that calls the Slack Web API directly (slack_sdk, WebClient, chat_postMessage) rather than going through prefect_slack. Triggers: any mention of migrating or rewriting Prefect Slack notifications to Orchestra; any Prefect flow code importing from prefect_slack; on_failure= or on_completion= flow arguments posting to Slack; send_incoming_webhook_m…