add_tag_fs
Add tags to note frontmatter
How to use it
add_tag_fs is exposed by the Obsidian MCP MCP server. Add the server to your MCP client (Claude Desktop, Cursor, Windsurf and others), and the add_tag_fs tool becomes available to the model automatically. See the full listing for setup details and every tool this server provides.
Install Obsidian MCP
uv pip install .Other tools in Obsidian MCP (39)
Connect nodes with edges
Add text/file nodes
Add inline fields
Add cards to columns
Vault connectivity metrics
Extract frontmatter and inline tags
Append content to note end
Apply templates offline
Create tasks with metadata
Execute full DQL queries (LIST/TABLE/TASK)
Simple {{variable}} expansion
Parse all syntax variants (::, [], ())
Find highly connected notes
Identify isolated notes
Find all notes linking to a specific note
Identify broken wikilinks in vault
Analyze node relationships
Board analytics
Complete vault link graph
Multi-level connection exploration
Task completion analytics
Insert after block references
Insert content after specific headings
Browse available templates
Move cards between columns
Comprehensive stats for individual notes
Parse JSON Canvas v1.0 files
Parse markdown Kanban structure
Delete nodes
Remove inline fields
Remove tags from frontmatter
Find notes by field values
Find notes by tag
Search tasks with emoji metadata (📅⏫🔁✅)
Toggle card completion
Toggle complete/incomplete
Update/add frontmatter fields
Update due dates, priority, recurrence
Aggregate vault statistics