New: 98,000+ skills indexed from GitHub repos with 100+ stars · every skill safety-checkedBrowse top skillsTop skills
Esc to closeBrowse all skills
Submit a skillBrowse skills
Submit a skillBrowse skills

Agent skill

Add Frontmatter

by heyitsnoah in heyitsnoah/claudesidian

Add or update YAML frontmatter properties to enhance Obsidian note organization.

MITAuto-check passedKnowledge Management

Install Add Frontmatter

skills CLI
$ npx skills add heyitsnoah/claudesidian --skill add-frontmatter -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install heyitsnoah/claudesidian add-frontmatter --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/heyitsnoah/claudesidian.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agents/skills/add-frontmatter .claude/skills/add-frontmatter && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
add-frontmatter
GitHub stars
2.6k
Token cost
~951 tokens
SKILL.md length
272 words
Files
1
Skills in repo
17
Repo updated
First seen
Licence
MIT

At a glance

Add or update YAML frontmatter properties to enhance Obsidian note organization.

  • Works in 5 steps: Identify Notes to Process → Analyze Note Content → Generate Appropriate Properties → …
  • The user asks to add
  • SKILL.md covers Input, Your Task, Property Guidelines and Special Cases, plus 1 more section
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Add Frontmatter is an agent skill from heyitsnoah/claudesidian. Add or update YAML frontmatter properties to enhance Obsidian note organization. Use when the user asks to add, fix, normalize, or improve frontmatter, properties, metadata, tags, or YAML on a note or folder of notes.

Its SKILL.md is about 950 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Knowledge Management, covering Note-taking. The licence is MIT.

When your agent uses it

  • The user asks to add
  • Improve frontmatter
  • Folder of notes

Example prompts

  • “/add-frontmatter”

Workflow steps

5 steps, taken from the step headings in SKILL.md.

  1. Identify Notes to Process
  2. Analyze Note Content
  3. Generate Appropriate Properties
  4. Apply Properties
  5. Update File

What it can do on your machine

Read from SKILL.md and the folder at commit 6c56f35. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    No scripts in the folder and no shell commands in SKILL.md (its code samples are yaml, markdown and bash).

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Add Frontmatter loads about 951 tokens when it runs. Until then it costs about 58 tokens; SKILL.md has 272 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~58
When it runs · the whole SKILL.md, loaded when a task matches
~951

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from heyitsnoah/claudesidian at commit 6c56f35, republished under its MIT licence (© heyitsnoah). 272 words, ~951 tokens.

Download SKILL.mdSave it as .claude/skills/add-frontmatter/SKILL.md (or your agent's skills folder).
name
add-frontmatter
description
Add or update YAML frontmatter properties to enhance Obsidian note organization. Use when the user asks to add, fix, normalize, or improve frontmatter, properties, metadata, tags, or YAML on a note or folder of notes.

You will analyze Obsidian notes and add intelligent YAML frontmatter properties to enhance organization and discoverability.

Input

  • Path: file or folder to process
  • Current date: use the system date

Your Task

Step 1: Identify Notes to Process
bash
# If single file
Read the specified file

# If folder
Find all .md files in folder
Step 2: Analyze Note Content

For each note, examine:

  • Main topics and themes
  • Note type (meeting, daily, reference, project)
  • Key entities (people, projects, dates)
  • Existing properties (preserve valid ones)
  • Title quality (add/improve if needed)
Step 3: Generate Appropriate Properties
Standard Properties by Note Type

Meeting Notes:

yaml
---
title: [Descriptive meeting title]
date: YYYY-MM-DD
type: meeting
attendees: ['Person 1', 'Person 2']
project: Project Name
tags: [meeting, project-name]
action_items:
  - 'Action item 1'
  - 'Action item 2'
status: complete
---

Daily Notes:

yaml
---
title: Daily Note - YYYY-MM-DD
date: YYYY-MM-DD
type: daily-note
tags: [daily]
highlights:
  - 'Key event or thought'
mood: productive
---

Reference/Article Notes:

yaml
---
title: [Article or concept title]
type: reference
source: "[[Source Note]]" or URL
author: Author Name
date_saved: YYYY-MM-DD
tags: [topic1, topic2]
key_concepts: [concept1, concept2]
---

Project Notes:

yaml
---
title: [Project Name - Component]
type: project
status: in-progress
deadline: YYYY-MM-DD
stakeholders: ['Person 1', 'Team 2']
tags: [project, area]
priority: high
---
Step 4: Apply Properties

For each note:

  1. Check for existing frontmatter
  2. Merge new properties (don't duplicate)
  3. Fix any deprecated formats:
    • tag → tags
    • alias → aliases
    • cssclass → cssclasses
  4. Ensure valid YAML syntax
Step 5: Update File
yaml
# Format:
---
property: value
list_property: ['item1', 'item2']
date_property: YYYY-MM-DD
linked_property: '[[Note Name]]'
---
[Original content]

Property Guidelines

Naming Conventions
  • Use lowercase with underscores: date_created, action_items
  • Be consistent with existing vault patterns
  • Prefer clear over clever names
Value Types
  • Text: Simple strings, use quotes for links
  • List: Arrays for multiple values
  • Date: ISO format (YYYY-MM-DD)
  • Number: For counts, ratings, priorities
  • Checkbox: For boolean states
Quality Checks
  • ✅ Valid YAML syntax
  • ✅ No duplicate properties
  • ✅ Appropriate property types
  • ✅ Quoted internal links
  • ✅ Meaningful values (not empty)

Special Cases

Untitled Notes

Generate title from:

  1. First heading if exists
  2. First paragraph summary
  3. Main topic/concept discussed
Bulk Processing

When processing folders:

  • Maintain consistency across similar notes
  • Use same property names for same concepts
  • Report summary of changes made
Existing Properties
  • Preserve valid existing properties
  • Update deprecated formats
  • Merge new properties carefully
  • Never delete without reason

Examples

Before:
markdown
Had a great meeting with the team about Q1 planning...
After:
markdown
---
title: Q1 Planning Team Meeting
date: 2025-09-02
type: meeting
attendees: ['Team']
project: Q1 Planning
tags: [meeting, planning, q1-2025]
status: complete
---

Had a great meeting with the team about Q1 planning...

Remember: Properties should enhance organization, not clutter. Only add what provides value for finding and connecting notes.

© heyitsnoah, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

Just SKILL.md in .agents/skills/add-frontmatter of heyitsnoah/claudesidian.

Open the folder on GitHubat commit 6c56f35

Compare with similar skills

Add Frontmatter next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Add Frontmatter compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Add Frontmatter this skillheyitsnoah/claudesidian2.6k—~951Automated safety check: PassMIT
Qmdalsk1992/CloddsBot2.9k3 repos~1.2kAutomated safety check: PassMIT
Obsidian Canvas BoardsAgriciDaniel/claude-obsidian15k—~1.4kAutomated safety check: PassMIT
LLM Wikilewislulu/llm-wiki-skill655—~3.7kAutomated safety check: PassNone
Para Memory Filespaperclipai/paperclip99k1 repos~909Automated safety check: PassMIT
Obsidian Bases EditorAgriciDaniel/claude-obsidian15k—~1.2kAutomated safety check: PassMIT

Similar skills

  • Qmd

    alsk1992/CloddsBot

    Local hybrid search for markdown notes and docs. An agent skill from alsk1992/CloddsBot.

    2.9k GitHub starsUsed in 3 repos~1.2k tokens
    Knowledge ManagementAuto-check passed

  • Obsidian Canvas Boards

    AgriciDaniel/claude-obsidian

    Creates, inspects and updates Obsidian JSON Canvas boards in a vault, with text, file, link, group and edge nodes, using safe recoverable edits.

    15k GitHub stars~1.4k tokensUpdated 29 days ago
    Knowledge ManagementAuto-check passed

  • LLM Wiki

    lewislulu/llm-wiki-skill

    Build and maintain a Karpathy-style LLM knowledge base — a self-compiling Obsidian markdown wiki where an Agent ingests raw sources, compiles cross-linked concept/entity/summary pages, answers…

    655 GitHub stars~3.7k tokensUpdated 5 mo ago
    Knowledge ManagementAuto-check passed

  • Para Memory Files

    paperclipai/paperclip

    Use a file-based PARA memory system to store, retrieve, and organize durable knowledge across sessions.

    99k GitHub starsUsed in 1 repo~909 tokens
    Knowledge ManagementAuto-check passed

  • Obsidian Bases Editor

    AgriciDaniel/claude-obsidian

    Explains, drafts and validates Obsidian Bases .base files, building filters, formulas and table, card or list views, and applying edits only through one inspected transaction.

    15k GitHub stars~1.2k tokensUpdated 29 days ago
    Knowledge ManagementAuto-check passed

  • My LLM Wiki

    MartinLwx/dotfiles

    Provides access to the user's personal wiki, including notes, research, project documentation, decisions, and archived knowledge.

    140 GitHub stars~2.7k tokensUpdated yesterday
    Knowledge ManagementAuto-check passed

More from heyitsnoah/claudesidian

All 17 skills in this repo

  • JSON Canvas

    heyitsnoah/claudesidian

    Create and edit JSON Canvas files (.canvas) with nodes, edges, groups, and connections.

    2.6k GitHub starsUsed in 18 repos~3.5k tokens
    Auto-check passed

  • De AI Ify

    heyitsnoah/claudesidian

    Remove AI-generated jargon and restore human voice to text. An agent skill from heyitsnoah/claudesidian.

    2.6k GitHub stars~526 tokensUpdated 6 mo ago
    Auto-check passed

  • Download Attachment

    heyitsnoah/claudesidian

    Download files from URLs to the Obsidian attachments folder and organize them with descriptive names.

    2.6k GitHub stars~836 tokensUpdated 6 mo ago
    Auto-check passed

  • Git Worktrees

    heyitsnoah/claudesidian

    Work with git worktrees for isolated parallel development. An agent skill from heyitsnoah/claudesidian.

    2.6k GitHub stars~1.1k tokensUpdated 6 mo ago
    Auto-check: notes

  • Install Claudesidian Command

    heyitsnoah/claudesidian

    Install claudesidian shell command to launch Claude Code from anywhere.

    2.6k GitHub stars~2.7k tokensUpdated 6 mo ago
    Auto-check passed

  • Pragmatic Review

    heyitsnoah/claudesidian

    Interactive pragmatic code review focusing on YAGNI and KISS principles.

    2.6k GitHub stars~2.6k tokensUpdated 6 mo ago
    Auto-check passed

Categories

Questions about Add Frontmatter

What does Add Frontmatter do?

Add or update YAML frontmatter properties to enhance Obsidian note organization. Add Frontmatter is an agent skill from heyitsnoah/claudesidian. Add or update YAML frontmatter properties to enhance Obsidian note organization.

When should I use Add Frontmatter?

Add Frontmatter fits situations like: the user asks to add; improve frontmatter; folder of notes.

How do I install Add Frontmatter in Claude Code?

Run `npx skills add heyitsnoah/claudesidian --skill add-frontmatter -a claude-code`. Or copy the skill folder (.agents/skills/add-frontmatter in heyitsnoah/claudesidian) into .claude/skills/add-frontmatter in your project. Claude Code loads it when a task matches its description.

How do I install Add Frontmatter in Codex?

Run `npx skills add heyitsnoah/claudesidian --skill add-frontmatter -a codex`. Or copy the skill folder (.agents/skills/add-frontmatter in heyitsnoah/claudesidian) into .agents/skills/add-frontmatter in your project. Codex loads it when a task matches its description.

Can I use Add Frontmatter in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add heyitsnoah/claudesidian --skill add-frontmatter -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/add-frontmatter, .gemini/skills/add-frontmatter, .github/skills/add-frontmatter and .opencode/skills/add-frontmatter in your project.

What does Add Frontmatter need to run?

SKILL.md names no scripts, command-line tools or credentials: Add Frontmatter is instructions for the agent only.

Does Add Frontmatter access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Add Frontmatter safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Add Frontmatter use?

Add Frontmatter is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Add Frontmatter use?

About 951 tokens (SKILL.md is roughly 3.8k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Add Frontmatter?

Skills that share tags, products or a category with Add Frontmatter: Qmd (alsk1992/CloddsBot, 2.9k stars), Obsidian Canvas Boards (AgriciDaniel/claude-obsidian, 15k stars), LLM Wiki (lewislulu/llm-wiki-skill, 655 stars) and Para Memory Files (paperclipai/paperclip, 99k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Add Frontmatter?

heyitsnoah (a GitHub user) maintains it in heyitsnoah/claudesidian, which has 2,598 GitHub stars. The repository holds 17 skills in this directory. The repository was last updated on April 11, 2026.

Source: heyitsnoah/claudesidian on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.