knowledge_index_skill

Skill for using the KnowledgeIndex registry to discover which directories contain .knowledge.yaml files without walking the filesystem. KnowledgeIndex is a lightweight SQLite cache. It maps directory paths to file metadata (mtime, memory_count, link_count). The database path is caller-provided — npcpy does not hardcode a default. Key operations: — Upsert a directory after writing to its YAML:…