Configuring Airflow Language Sdks

What it does

When your agent uses it

• The user wants Airflow to route a queue to a native-language coordinator
• Asks about the [sdk] coordinators/queuetocoordinator settings
• AIRFLOWSDKCOORDINATORS
• Executablesroot

Example prompts

• “Use the configuring-airflow-language-sdks skill to configure Airflow to run language SDK tasks (Java, Go, and future native SDKs) — register a…”
• “/configuring-airflow-language-sdks”

Requirements

• Python 3
• Docker

Workflow steps

2 steps, taken from the first numbered list in SKILL.md.

1. 1coordinators — a JSON object mapping a coordinator name you choose to its implementation (classpath) and constructor kwargs.
2. 2queue_to_coordinator — a JSON object mapping a task queue to a coordinator name.

What it can do on your machine

Read from SKILL.md and the folder at commit 486ee63. It shows what the files ask for, not the result of running them.

• Tool permissions

  Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

  From allowed-tools in the SKILL.md frontmatter.

• Runs code

  Shell commands in SKILL.md call:

  • java
  • docker

  From the folder's file list and the shell code blocks in SKILL.md.

• Network

  No URLs in SKILL.md. Its commands use docker, which can reach the network depending on how they are called.

  From URLs in SKILL.md, links to its own repository left out.

• Credentials

  Names no API keys, tokens, secrets or passwords.

  From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Configuring Airflow Language Sdks loads about 2.3k tokens when it runs. Until then it costs about 165 tokens; SKILL.md has 972 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it

~165

When it runs · the whole SKILL.md, loaded when a task matches

~2.3k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

• NoteMentions a .env fileSKILL.md:52

  This form is convenient for containers, `.env` files, Docker Compose, and Helm.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from astronomer/agents at commit 486ee63, republished under its Apache-2.0 licence (© astronomer). 972 words, ~2,345 tokens.

name

configuring-airflow-language-sdks

description

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).

[sdk]
coordinators = {
  "java-jdk17": {
    "classpath": "airflow.sdk.coordinators.java.JavaCoordinator",
    "kwargs": {"jars_root": ["/opt/airflow/jars"]}
  },
  "go": {
    "classpath": "airflow.sdk.coordinators.executable.ExecutableCoordinator",
    "kwargs": {"executables_root": ["/opt/airflow/executable-bundles"]}
  }
}
queue_to_coordinator = {"java": "java-jdk17", "golang": "go"}

export AIRFLOW__SDK__COORDINATORS='{"java-jdk17": {"classpath": "airflow.sdk.coordinators.java.JavaCoordinator", "kwargs": {"jars_root": ["/opt/airflow/jars"]}}, "go": {"classpath": "airflow.sdk.coordinators.executable.ExecutableCoordinator", "kwargs": {"executables_root": ["/opt/airflow/executable-bundles"]}}}'
export AIRFLOW__SDK__QUEUE_TO_COORDINATOR='{"java": "java-jdk17", "golang": "go"}'

[sdk]
coordinators = {
  "java-jdk17": {
    "classpath": "airflow.sdk.coordinators.java.JavaCoordinator",
    "kwargs": {
      "jars_root": ["/opt/airflow/jars"],
      "jvm_args": ["-Djava.util.logging.config.file=/opt/airflow/logging.properties"]
    }
  }
}

© astronomer, Apache-2.0. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

Just SKILL.md in skills/configuring-airflow-language-sdks of astronomer/agents.

Open the folder on GitHubat commit 486ee63