# Track what entered and left the sitemaps

> Tier: recipe. Operating recipe: real tool sequence, core rules, known traps.

Sitemap deltas since last read: appeared, vanished, the early warning for generation bugs.

**Intent.** The site's own publication log, as Google sees it.

## When to use

- Weekly.
- After deploys touching routing.

## When not to use

- No specific contraindication beyond the preconditions below.

## Sources

Required: Search Console

## Preconditions

- The account is ticked in the dashboard, confirmed via list_accounts.

## Inputs

- `window`: Analysis window. Default: last 30 days.

## Procedure

1. Track deltas since the last run. — tools: `gsc_track_sitemap_deltas`
2. Verify vanished URLs were meant to vanish.

## Decision rules

- **When** URLs vanished that nobody deleted → **conclude** Generation regression: the sitemap is lying about the site, fix before Google believes it.

## Evidence requirements

- Every figure carries its account, metric and window.
- Anything below a readable sample size is reported as unjudged, not as zero.

## Human approval boundary

- The readout changes nothing. Any change it motivates goes through Safe Writes: preview, human confirmation, then apply.

## Failure modes

- Legitimate churn (products in and out of stock) needs a baseline: deltas without one cry wolf.

## Output

- **Readout**: The figures, with windows and accounts named.
- **Flags**: What deserves a deeper skill or a human decision.

## Related

- Skill: [indexation-health](https://www.getmcpads.com/skills/indexation-health.md)