What is add-adapter-method?

A coding command that adds the same method to adapters for Airflow 2.x and 3.x. An adapter is a layer that hides differences between external software versions.

Use it when adding an Airflow operation that must work through both version-specific adapters.

It keeps one server interface while handling different API paths, field names, and response formats in each Airflow version.

How astronomer/astro-airflow-mcp configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to astronomer/astro-airflow-mcp. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file

curl -O https://raw.githubusercontent.com/astronomer/astro-airflow-mcp/main/.claude/commands/add-adapter-method.md

Clone the repo

git clone --depth 1 https://github.com/astronomer/astro-airflow-mcp

Made for: Claude Code.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

README.md

[![agentmods](https://agentmods.dev/badge/commands/astronomer/astro-airflow-mcp/add-adapter-method/github.svg)](https://agentmods.dev/commands/astronomer/astro-airflow-mcp/add-adapter-method)

Your own site

<a href="https://agentmods.dev/commands/astronomer/astro-airflow-mcp/add-adapter-method"><img src="https://agentmods.dev/badge/commands/astronomer/astro-airflow-mcp/add-adapter-method/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/commands/astronomer/astro-airflow-mcp/add-adapter-method"><img src="https://agentmods.dev/badge/commands/astronomer/astro-airflow-mcp/add-adapter-method.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 9 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.

When invoked 254 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

Origin 100% copy Near-identical to another mod in the catalogue.

Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

Model	Per session	Once invoked
Fable 5.1	$0.00009	$0.00254
Opus 5	$0.00005	$0.00127
Sonnet 5	$0.00002	$0.00051
Haiku 4.5	$0.00001	$0.00025

Measured 9d ago against content hash a74c08d16111, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

add-adapter-method scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 9d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

Origin

This is a copy

100% identical to add-adapter-method — 0 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

.claude/commands/add-adapter-method.md · 41 lines

What it actually says

Add method $ARGUMENTS to both V2 and V3 adapters.

Steps

Add abstract method to adapters/base.py:

@abstractmethod
def method_name(self, param: str) -> dict[str, Any]:
    pass

Implement in adapters/airflow_v2.py:

def method_name(self, param: str) -> dict[str, Any]:
    return self._call(f"endpoint/{param}")

Implement in adapters/airflow_v3.py:

def method_name(self, param: str) -> dict[str, Any]:
    return self._call(f"endpoint/{param}")

Version Differences

Feature	Airflow 2.x	Airflow 3.x
API path	`/api/v1`	`/api/v2`
Assets	`datasets`	`assets`
DAG runs	`execution_date`	`logical_date`

Normalize V2 responses to match V3 field names when they differ.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

9d ago First seen · 41 lines · 9 tokens per session scan A a74c08d16111

Subscribe to this mod's changes

add-adapter-method is a command published in the GitHub repository astronomer/astro-airflow-mcp (13 stars, last pushed 7mo ago), licensed Apache-2.0. It adds 9 tokens to every session and 254 once invoked, about $0.0000 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to add-adapter-method, differing in 0 lines, and is treated as a copy.

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astro-airflow-mcp: Command for Claude Code