index-init

index-init is a skill for Claude Code, Codex from AI4CreativityLab/Index.skill. It costs 26 tokens per session (3,342 once invoked), scanned A, original, MIT.

A setup skill for creating an Obsidian knowledge vault and defining an agent's personality. Obsidian is a note-taking app that stores linked notes in a local vault.

In plain words
What is it for?
Use it to initialize the IndexVault folder structure, copy note templates, and create a persona.md file from the user's preferences.
Why use it?
It removes the manual work of creating the vault's folders and starter templates. It also gives the agent a place to store new notes, deeper research, memory, images, and downloads.

Skill for Claude CodeCodex

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/ai4creativitylab/index.skill/index-init
Any agent
npx skills add AI4CreativityLab/Index.skill --skill index-init
Clone the repo
git clone --depth 1 https://github.com/AI4CreativityLab/Index.skill

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for index-init

README.md
[![agentmods](https://agentmods.dev/badge/skills/ai4creativitylab/index.skill/index-init.svg)](https://agentmods.dev/skills/ai4creativitylab/index.skill/index-init)
Your own site
<a href="https://agentmods.dev/skills/ai4creativitylab/index.skill/index-init"><img src="https://agentmods.dev/badge/skills/ai4creativitylab/index.skill/index-init.svg" alt="Measured on agentmods" height="20"></a>
Per session 26 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,342 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00026 $0.03342
Opus 5 $0.00013 $0.01671
Sonnet 5 $0.00005 $0.00668
Haiku 4.5 $0.00003 $0.00334

Measured 3d ago against content hash 7f9adf8af1e9, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

index-init scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 3d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

.claude/skills/index-init/SKILL.md · 320 lines

How it starts

The opening of the file, as written. The whole thing — 320 lines — stays where its author put it; the contents beside it link to each section on GitHub.

You are IndexInit, the Setup Assistant.

Objective

Initialize the Obsidian vault (./IndexVault/) for first-time users, then create a persona.md that defines the Agent's personality based on user preferences.

Usage: /index-init

Important Paths

VAULT_PATH     = ./IndexVault
TEMPLATE_DIR   = ./IndexVault/_template
NEW_DIR        = ./IndexVault/_new
DEEP_DIR       = ./IndexVault/deep
MEMORY_DIR     = ./IndexVault/memory
IMAGES_DIR     = ./IndexVault/_images
DOWNLOADS_DIR  = ./IndexVault/_downloads
RESOURCES_DIR  = ./skills/index-init/resources

Workflow

Step 1: Create Vault Directory Structure

mkdir -p ./IndexVault/_new \
         ./IndexVault/deep \
         ./IndexVault/memory \
         ./IndexVault/_images \
         ./IndexVault/_downloads \
         ./IndexVault/_template \
         ./IndexVault/_chat \
         ./IndexVault/.obsidian

Step 2: Copy Templates

Copy all 6 template files from the skill's resources directory to the vault:

cp ./skills/index-init/resources/*.md ./IndexVault/_template/

The following template files should be copied:

  • idea_template.md
  • project_template.md
  • book_template.md
  • paper_template.md
  • webinfo_template.md
  • webnews_template.md

Step 3: Create Obsidian Configuration

Write the following config files to ./IndexVault/.obsidian/:

core-plugins.json:

{
  "file-explorer": true,
  "global-search": true,
  "switcher": true,
  "graph": true,
  "backlink": true,
  "outgoing-link": true,
  "tag-pane": true,
  "page-preview": true,
  "daily-notes": false,
  "templates": false,
  "note-composer": true,
  "command-palette": true,
  "slash-command": false,
  "editor-status": true,
  "markdown-importer": true,
  "zk-prefixer": false,
  "random-note": false,
  "outline": true,
  "word-count": true,
  "slides": false,
  "audio-recorder": false,
  "workspaces": false,
  "file-recovery": true,
  "publish": false,
  "sync": false,
  "canvas": true,
  "footnotes": false,
  "properties": true,
  "bookmarks": true,
  "bases": true,
  "webviewer": false
}

Read the full file on GitHub · 320 lines

Files

What ships with it

6 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 3d ago First seen · 320 lines · 26 tokens per session scan A 7f9adf8af1e9

Subscribe to this mod's changes

index-init is a skill published in the GitHub repository AI4CreativityLab/Index.skill (77 stars, last pushed 2mo ago), licensed MIT. It adds 26 tokens to every session and 3,342 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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