What problem does it solve? Documentation drifts out of sync with implemented features, specs, and configuration as projects evolve. This Skill systematically audits app feature docs or developer workflow guides against authoritative sources of truth, flags gaps and stale content, and applies confirmed updates without touching code or config files. ## Core Features & Use Cases - Dual sync modes: Sync user-facing app docs in a Nextcloud app's docs/ folder, or developer/Claude guides in the .github repo's docs/claude/ directory. - Spec-driven gap analysis: Cross-references OpenSpec specs, ADRs, and writing-docs.md principles to find outdated content, stale [Future] markers, broken links, duplicated content, and ADR compliance gaps. - Safe editing guardrails: Only modifies .md files, always asks for confirmation before writing, verifies git branch and remote divergence before editing the .github repo, and routes learnings through a candidates-to-learnings buffer. - Use Case: After shipping a new export feature in the OpenRegister app, run the sync to detect that docs/features/export.md is missing and the README still marks export as [Future], then apply confirmed fixes. ## Quick Start Ask the assistant to sync the docs for a specific app, for example by saying "sync the docs for openregister" or "check if the developer docs are up to date".
