Verify pipeline
A Claude Code harness that turns a session into an agentic data engineer for SMBs — packaged as an installable plugin, built from a skillpack of skills that stand up a cheap, self-hostable Modern Data Stack (Tailscale + dlt + BigQuery + dbt + optional MCP), end-to-end and headless.
npx -y skills add pol-cc/agentic-data-engineer --skill verify-pipelineAssembled from the repository path, not quoted from the project. Check it against their README if it does not work.
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What its author says it does
Copied from the file, not written here
Run a full health check across the MDS pipeline: ingestion (dlt/Airbyte) load status, BigQuery freshness per source, ingest reconciliation (source-vs-destination row counts), dbt model freshness, MCP server health, and raw-vs-staging row count integrity. Invoke when the user wants to confirm the pipeline is healthy or asks 'is everything working?'
SKILL.md
3.6 KB, as published. Nobody here has run it
verify-pipeline
Status: v0.10.0 — references written; read-only health check operational. Ingest reconciliation is now a first-class layer (source-vs-destination row counts, dlt
_dlt_loadsfreshness, sequence/gap checks) — mandatory after every dlt load to catch the silent data gap a mis-set incremental cursor leaves without crashing.
What this skill does
Runs deterministic checks across every layer of the MDS and produces a one-page report. Read-only — never modifies state. Safe to invoke at any time.
Preflight
if [ ! -f .agentic-data-engineer.json ]; then
echo "[abort] not a managed MDS deployment"
exit 1
fi
Checks performed
| Layer | Check | Pass criterion |
|---|---|---|
| Tailscale | tailscale status on the VPS via SSH | VPS reachable, all nodes online |
| Ingestion (dlt/Airbyte) | dlt _dlt_loads last-load status + age per source (or Airbyte GET /jobs when stack.ingest == "airbyte") | Latest load completed within freshness_thresholds.green_hours (default 26h) |
| BigQuery raw | __TABLES__ modification time per raw dataset | Updated within green_hours |
| Ingest reconciliation | Source-vs-destination row count per source; dlt _dlt_loads status; sequence/gap check on monotonic keys | Destination matches source within reconciliation_tolerance (default 0); no sequence gaps; latest _dlt_loads.status = 0 |
| BigQuery integrity | Row count raw.<table> vs staging.stg_<table> | Difference within 0.5% (or configured threshold) |
| dbt | target/run_results.json from last cron run via SSH | All models success, run completed within green_hours |
| MCP (if configured) | GET /health on the MCP server endpoint | Returns 200 |
Reconciliation is the ingest-layer check dbt tests don't cover. dbt tests validate the transform (raw → staging → marts); reconciliation validates the ingest (source → raw). It is mandatory after every dlt load because dlt's failure mode is silent — a mis-set incremental cursor or broken paginator leaves a data gap without crashing, so freshness looks green while rows are missing. Only counting source against destination catches it. See references/health-checks.md section 4.
Output
A markdown report with: per-source traffic-light status, last successful sync timestamp, dbt model freshness, integrity warnings, and a one-line global verdict.
The skill never auto-fixes. If a check fails, it points the user at troubleshoot.
References
references/health-checks.md— the exact command(s) per layer, pass criteria, amber/red interpretation, and the full-sweep procedurereferences/report-format.md— the markdown report template the skill emits, with filled examples../../shared-references/remote-control-model.md— how the agent reaches the VPS over Tailscale SSH../create-mds/references/airbyte-install.md— for the API auth flow../../shared-references/ai-native-principles.md— principle 6 on observability