migrating-dagster-to-airflow
Guide for migrating Dagster projects to Apache Airflow 3 on Astro. Use when the user mentions migrating, converting, or porting Dagster (or Dagster+) code to Airflow or Astro, wants to plan or assess such a migration, or asks what a Dagster construct maps to in Airflow. Covers assets, partitions, schedules, sensors, declarative automation, resources, IO managers, ops/jobs, dbt, Pipes, Components, and Dagster+ platform config. Always load this skill as the first step for any Dagster-to-Airflow request.
Install
With your agent
Install OMGSkills skill "astronomer/agents:skills/migrating-dagster-to-airflow" into this agent's normal skills directory: call the OMGSkills MCP get_install_plan tool for your agent and run the script it returns (it installs only the pinned commit and verifies SKILL.md), and stop if MCP or the pin is unavailable. Do not overwrite or change existing skills without asking me.
Manual command
git clone https://github.com/astronomer/agents /tmp/agents && ln -s /tmp/agents/skills/migrating-dagster-to-airflow ~/.claude/skills/migrating-dagster-to-airflowFrom README
Dagster → Airflow 3 (Astro) migration Migrate a Dagster project to Airflow 3 on Astro Runtime, honestly. The migration is asset-first (Dagster asset graphs translate to Airflow assets and asset-aware schedules, not flattened DAGs), incremental (domain by domain, Dagster stays authoritative until parity), and honest (every definition gets an explicit disposition; semantic deltas are documented, never papered over). First time driving this? Read reference/quickstart.md first: hour-one commands, the glossary, and what can and cannot break. Migration at a glance Baseline the source project's tests, then inventory it read-only (scripts/inventory.py → manifest). Review classifications (MECH/JUDG/REDESIGN/NONE per reference/mapping.md); make the go/no-go call (three outcomes; migrate-with-conditions is the common case, stay is the narrow one); plan DAG boundaries, per-edge IO decisions, and Gate 3 expectations into the manifest.
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