Obsidian plugins with #note-retrieval#

The Karpathy LLM Wiki plugin turns notes into an interlinked wiki and lets you query that graph from a side panel inside the editor. It extracts entities and concepts into separate pages, adds aliases, builds bidirectional wiki links and maintains an index, while keeping source notes unchanged. Retrieval uses a five stage cascade with lexical matching, LLM generated keywords, local substring scanning, fallback reseeding and Personalized PageRank over wiki links instead of embeddings or a vector database. The plugin also includes linting, duplicate and contradiction checks, smart repair flows, batch ingestion, PDF ingestion with provider specific and local OCR paths and support for many cloud and local model providers. Query answers link back into the wiki and PDF markdown can be cached under .obsidian/plugins/karpathywiki/pdf-cache/.

The Smart Lookup plugin adds question first semantic search for your vault, so notes can be retrieved by meaning instead of exact phrase matches. It opens a dedicated lookup view where you enter a plain language query, inspect ranked results, expand previews and then open, link or reuse the most relevant match. The plugin makes a clear distinction between semantic retrieval and lexical search, which helps when you remember an idea but not the exact wording, file name or heading. It also works with the wider Smart Environment setup for indexing, exclusions and model handling, and can surface source level or block level results where that environment supports them. Core retrieval can run locally, and the workflow stays centered on reviewing previews before trusting a match.