Individual skill
configuring-airflow-language-sdks
Configures Airflow to run language SDK tasks (Java, Go, and future native SDKs) — register a coordinator, map a queue to it, ensure the runtime/artifact on workers, and tune coordinator options. Use when the user wants Airflow to route a queue to a native-language coordinator, asks about the `[sdk]` `coordinators`/`queue_to_coordinator` settings, `AIRFLOW__SDK__COORDINATORS`, `jars_root`, `executables_root` or other coordinator `kwargs`, `task_startup_timeout`, or why their native tasks aren't being picked up. Covers the shared routing mechanism plus per-coordinator options (e.g. JavaCoordinator, ExecutableCoordinator).
skills/configuring-airflow-language-sdks/SKILL.md
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# Configuring Airflow for Language SDKs
To run language SDK tasks, Airflow needs to know two things: which **coordinator** launches the native subprocess, and which **queue** routes to that coordinator. The mechanism is identical across every language SDK — only each coordinator's `classpath` and `kwargs` differ. This skill documents the shared wiring once, then the per-coordinator options. It is platform-neutral: the same settings apply on open-source Airflow and on managed platforms like Astro.
> **Experimental.** The language SDKs are in preview; configuration keys may change.
> For the task code, see **authoring-language-sdk-tasks** (and the per-language authoring skill, e.g. **authoring-java-sdk-tasks**, **authoring-go-sdk-tasks**). For building and shipping the artifact, see the per-language deploy skill (e.g. **deploying-java-sdk-bundles**, **deploying-go-sdk-bundles**).
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## Prerequisites on the worker
- The **runtime or artifact the SDK needs** must be present on the worker nodes, because the coordinator spawns a native subprocess per task instance. The exact requirement is per-SDK — see [Per-coordinator options](#per-coordinator-options) (the Java SDK needs a **JRE 17+**; the Go SDK needs no language runtime — the bundle is a self-contained native executable, but it must be built for the worker's OS/arch).
- The compiled/native **artifact(s)** must be reachable on the worker. See the per-language deploy skill.