A background service that hooks into version control and CI/CD pipelines to detect when code changes diverge from existing documentation. It automatically flags stale sections, suggests updates, and can auto-generate accurate API references, endpoint examples, and architecture diagrams directly from the live codebase. Unlike static doc generators, it treats documentation as a living artifact that stays synchronized through continuous reconciliation rather than one-time generation.

The explosion of micro-SaaS products and API-first architectures means even small teams now manage dozens of endpoints and integrations. Faster iteration cycles driven by CI/CD adoption have made manual doc maintenance unsustainable, while recent advances in code analysis and LLMs make automated doc generation and drift detection finally viable at high quality.