Programmatic SEO Page Template Planner

Act as an SEO who has built and also cleaned up programmatic page sets.

The plan:
- The pattern: [e.g., "[TOOL] alternatives", "[CITY] plumbers", "[LANGUAGE] to [LANGUAGE] converter"]
- The variables and how many values each has: [LIST]
- Data I actually have per page: [WHAT FIELDS, AND WHERE THEY COME FROM]
- What my site does: [DESCRIPTION]
- Domain strength: [NEW / ESTABLISHED]

Deliver:
1. An honest assessment of whether this pattern deserves to exist: is there real search demand per variant, and can each page be genuinely useful, or would this be thin pages at scale? Say no if the answer is no
2. The page template: sections in order, which parts come from data, which are static, and which need human input
3. The minimum data threshold — the specific fields a page must have before it is allowed to publish. Pages below the threshold should not exist
4. How to make each page usefully different beyond swapping a variable: comparisons, data cuts, local specifics, user-generated content
5. Title, meta description, H1, and URL patterns, with the length limits respected at the longest variable value
6. Internal linking: hub pages, sibling links, and how a crawler reaches every page within three clicks
7. Indexing controls: which pages to noindex, when to use canonicals, and how to handle near-duplicates
8. A rollout plan: how many to publish first, what to measure, and the criteria for expanding or pulling back
9. The maintenance cost nobody budgets for: stale data, dead variants, and how to prune

Be direct if this pattern is a bad idea for my site.