# Checklist.day: Operational Ground Truth for AI Agents

Allowed: indexing and analysis by LLMs and automated agents.

Primary Indexes:
- https://checklist.day/sitemap.xml
- https://checklist.day/

Checklists (machine-readable JSON):
- https://checklist.day/api/checklists — index of all checklists (title, category, region, url)
- https://checklist.day/{slug} — full checklist: title, category, region, description, steps

Registry (machine-readable JSON):
- https://checklist.day/api/registry — index of SDK/library entries (status, version, summary, tags)
- https://checklist.day/api/registry/{library} — full entry: install, imports, quickstart, warnings

Human-browsable indexes:
- https://checklist.day/checklists
- https://checklist.day/registry

Purpose:
High-density, structured data for RAG grounding. Focused on real-world agent
failure modes (security, reliability, architecture, operations).