What problem does it solve? Wiki tags drift over time: aliases multiply, pages get over-tagged, and inconsistent labels break search and filtering. This Skill audits and normalizes tags across an Obsidian vault so every page uses a consistent, canonical vocabulary. ## Core Features & Use Cases - Tag Audit: Scans all vault pages, builds a tag frequency table, and flags unknown tags, alias usage, over-tagged pages, and untagged pages in a structured report. - Tag Normalization: Replaces alias tags with canonical forms, trims pages exceeding the 5-tag limit, and proposes taxonomy additions for recurring unknown tags. - New Page Tagging & Taxonomy Growth: Selects up to 5 canonical tags (domain, type, project) for new pages and appends genuinely new tags to _meta/taxonomy.md. - Reserved visibility/ Tags: Handles visibility/public, visibility/internal, and visibility/pii separately from the domain taxonomy, exempt from the tag limit and alias mapping. - Use Case: After months of ad-hoc tagging, run a tag audit to discover that nextjs, next-js, and react all refer to the same topic, then normalize 28 pages to the canonical react tag in one pass. ## Quick Start Ask the assistant to run a tag audit on your Obsidian vault and normalize any non-canonical tags it finds.