tracing-upstream-lineage
Trace upstream data lineage. Use when the user asks where data comes from, what feeds a table, upstream dependencies, data sources, or needs to understand data origins.
npx skills add majiayu000/claude-skill-registry --skill tracing-upstream-lineage-astronomer-agents --agent claude-code
Same command for any agent — swap --agent for codex, cursor, copilot.
Weekly change comes from our own snapshots, not the repository page — it measures attention, not adoption.
# Upstream Lineage: Sources Trace the origins of data - answer "Where does this data come from?" ## Lineage Investigation ### Step 1: Identify the Target Type Determine what we're tracing: - **Table**: Trace what populates this table - **Column**: Trace where this specific column comes from - **DAG**: Trace what data sources this DAG reads from ### Step 2: Find the Producing DAG Tables are typically populated by Airflow DAGs. Find the connection: 1. **Search DAGs by name**: Use `af dags list` and look for DAG names matching the table name - `load_customers` -> `customers` table - `etl_daily_orders` -> `orders` table 2. **Explore DAG source code**: Use `af dags source <dag_id>` to read the DAG definition - Look for INSERT, MERGE, CREATE TABLE statements - Find the target table in the code 3. **Check DAG tasks**: Use `af tasks list <dag_id>` to see what operations the DAG performs ### On Astro If you're running on Astro, the **Lineage tab** in the Astro UI provides visual lineage exploration across DAGs and datasets. Use it to quickly trace upstream dependencies without manually searching DAG source code. ### On OSS Airflow Use DAG source code and task logs to trace lineage (no built
- Lineage Investigation
- Step 1: Identify the Target Type
- Step 2: Find the Producing DAG
- On Astro
- On OSS Airflow
- Step 3: Trace Data Sources
- Step 4: Build the Lineage Chain
- Step 5: Check Source Health
- Lineage for Columns
- Output: Lineage Report
- Summary
- Lineage Diagram
- Source Details
- Transformation Chain
What does the tracing-upstream-lineage skill do?
Trace upstream data lineage. Use when the user asks where data comes from, what feeds a table, upstream dependencies, data sources, or needs to understand data origins.
How do I install it?
Run `npx skills add majiayu000/claude-skill-registry --skill tracing-upstream-lineage-astronomer-agents --agent claude-code` — it drops the skill into your project so the agent can pick it up. Swap the --agent value for codex, cursor or copilot if you use one of those.
Where does this skill come from?
From majiayu000/claude-skill-registry, a repository with 534 stars. We read it straight from the repository tree rather than a submitted listing, so what you see here is what is actually published.
Is a popular skill a good skill?
Not necessarily. Stars measure attention, not adoption — a repository can trend for a week and be abandoned. That is why we show the weekly change from our own snapshots next to the total, instead of a single flattering number.