Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add astronomer/agents --skill migrating-airflow-2-to-3git clone --depth 1 https://github.com/astronomer/agentsWrote 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.
[](https://agentmods.dev/skills/astronomer/agents/migrating-airflow-2-to-3)<a href="https://agentmods.dev/skills/astronomer/agents/migrating-airflow-2-to-3"><img src="https://agentmods.dev/badge/skills/astronomer/agents/migrating-airflow-2-to-3/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.
<a href="https://agentmods.dev/skills/astronomer/agents/migrating-airflow-2-to-3"><img src="https://agentmods.dev/badge/skills/astronomer/agents/migrating-airflow-2-to-3.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- Socket pass
- Snyk pass
- NVIDIA SkillSpector pass
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 | $0.00098 | $0.02222 |
| Opus 5 | $0.00049 | $0.01111 |
| Sonnet 5 | $0.00020 | $0.00444 |
| Haiku 4.5 | $0.00010 | $0.00222 |
Grade A, and why
migrating-airflow-2-to-3 scanned grade A with 1 finding 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 12d 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.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
response = requests.get( Copies of this mod
1 near-identical copy found in the catalogue:
- migrating-airflow-2-to-3 — 100% identical, 0 lines differ
How it starts
The opening of the file, as written. The whole thing — 201 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Airflow 2 to 3 Migration
This skill helps migrate Airflow 2.x DAG code to Airflow 3.x, focusing on code changes (imports, operators, hooks, context, API usage).
Important: Before migrating to Airflow 3, strongly recommend upgrading to Airflow 2.11 first, then to at least Airflow 3.0.11 (ideally directly to 3.1). Other upgrade paths would make rollbacks impossible. See: https://www.astronomer.io/docs/astro/airflow3/upgrade-af3#upgrade-your-airflow-2-deployment-to-airflow-3. Additionally, early 3.0 versions have many bugs - 3.1 provides a much better experience.
Migration at a Glance
- Run Ruff's Airflow migration rules to auto-fix detectable issues (AIR30/AIR301/AIR302/AIR31/AIR311/AIR312).
ruff check --preview --select AIR --fix --unsafe-fixes .
- Scan for remaining issues using the manual search checklist in reference/migration-checklist.md.
- Focus on: direct metadata DB access, legacy imports, scheduling/context keys, XCom pickling, datasets-to-assets, REST API/auth, plugins, and file paths.
- Hard behavior/config gotchas to explicitly review:
- Cron scheduling semantics: consider
AIRFLOW__SCHEDULER__CREATE_CRON_DATA_INTERVAL=Trueif you need Airflow 2-style cron data intervals. .airflowignoresyntax changed from regexp to glob; setAIRFLOW__CORE__DAG_IGNORE_FILE_SYNTAX=regexpif you must keep regexp behavior.- OAuth callback URLs add an
/auth/prefix (e.g./auth/oauth-authorized/google). - Shared utility imports: Bare imports like
import commonfromdags/common/no longer work on Astro. Use fully qualified imports:import dags.common.
- Cron scheduling semantics: consider
- Plan changes per file and issue type:
- Fix imports - update operators/hooks/providers - refactor metadata access to using the Airflow client instead of direct access - fix use of outdated context variables - fix scheduling logic.
- Implement changes incrementally, re-running Ruff and code searches after each major change.
- Explain changes to the user and caution them to test any updated logic such as refactored metadata, scheduling logic and use of the Airflow context.
What ships with it
4 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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.
- 12d ago First seen · 201 lines · 98 tokens per session scan A 9a4d1851754c
migrating-airflow-2-to-3 is a skill published in the GitHub repository astronomer/agents (440 stars, last pushed today), licensed Apache-2.0. It adds 98 tokens to every session and 2,222 once invoked, about $0.0005 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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