add-frontmatter

You can add YAML frontmatter to multiple Obsidian notes by running an automated skill on a folder, which analyzes note content and inserts consistent metadata across all files. It processes single files or entire folders, detecting note types like meeting, daily, reference, or project to apply relevant properties.

Updating existing frontmatter preserves valid properties while merging new metadata. The skill analyzes current YAML syntax, keeps existing valid data intact, migrates deprecated keys like tag to tags or alias to aliases, and normalizes the structure to ensure consistency without duplicating values.

Standardizing YAML metadata across an Obsidian vault is best handled by an automated tool that detects note types, migrates deprecated keys like cssclass to cssclasses, and ensures valid YAML syntax. This process improves organization and searchability by applying consistent metadata structure vault-wide.

Yes, frontmatter automation detects note types including meeting, daily, reference, and project by analyzing content. It then generates and applies relevant metadata properties based on the detected type, ensuring the YAML frontmatter accurately reflects the nature of each note.

Migrating deprecated frontmatter keys like tag to tags, alias to aliases, and cssclass to cssclasses is handled automatically during the metadata update process. The skill scans your notes, replaces outdated keys with the correct pluralized versions, and ensures the resulting YAML remains syntactically valid.