study-vault

study-vault is a skill for Claude Code from lsh1215/oh-my-study-with-me. It costs 56 tokens per session (2,522 once invoked), scanned A, original, MIT.

An automatic note-making workflow that turns a book PDF, web page, or GitHub repository into a structured study workspace.

In plain words
What is it for?
It creates a dashboard, quick-reference tables, comparisons between concepts, and practice problems from a selected source or chapter range.
Why use it?
It gives a quick overview of unfamiliar material without requiring an interactive study session first.

Skill for Claude Code

Written for Claude Code: user-invocable in frontmatter.

Needs its repository: it reads a path above its own folder, which exists only inside the repository. The line is - [Concept C](../03-topic/concepts.md#concept-c) is a higher-level abstraction of Concept A.

Part of the oh-my-study-with-me plugin — 6 skills, 1 hook shipped together

Good fit It creates a dashboard, quick-reference tables, comparisons between concepts, and practice problems from a selected source or chapter range.

Compare 6 skills from other repositories ↓
Install

Getting it into your agent

It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.

Clone the repo
git clone --depth 1 https://github.com/lsh1215/oh-my-study-with-me
agentmods
npx agentmods add skills/lsh1215/oh-my-study-with-me/study-vault

Made for: Claude Code.

Or install oh-my-study-with-me, the plugin that ships this one along with the rest of its 6 skills, 1 hook.

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 study-vault

README.md
[![agentmods](https://agentmods.dev/badge/skills/lsh1215/oh-my-study-with-me/study-vault/github.svg)](https://agentmods.dev/skills/lsh1215/oh-my-study-with-me/study-vault)
Your own site
<a href="https://agentmods.dev/skills/lsh1215/oh-my-study-with-me/study-vault"><img src="https://agentmods.dev/badge/skills/lsh1215/oh-my-study-with-me/study-vault/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for study-vault

Your own site · 80×15
<a href="https://agentmods.dev/skills/lsh1215/oh-my-study-with-me/study-vault"><img src="https://agentmods.dev/badge/skills/lsh1215/oh-my-study-with-me/study-vault.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 56 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,522 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
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 5.1 $0.00056 $0.02522
Opus 5 $0.00028 $0.01261
Sonnet 5 $0.00011 $0.00504
Haiku 4.5 $0.00006 $0.00252

Measured 10d ago against content hash d1827cac13a9, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

study-vault 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 10d 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.

skills/study-vault/SKILL.md · 300 lines

How it starts

The opening of the file, as written. The whole thing — 300 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Study Vault - Pre-Note Generation Skill

Argument Parsing

  • No argument → start from source selection
  • [book-name keyword] → start immediately with that book (PDF flow)
  • [URL] → fetch and generate vault from the URL content (web/GitHub flow)
  • [book-name] [chapter-range] → specific chapters only (e.g., kafka Ch3-Ch5)

Argument: $ARGUMENTS


Difference from /oh-my-study-with-me:study

study study-vault
Approach Read and converse interactively to build understanding Analyze the whole first, then generate notes
Speed Slow (interactive) Fast (auto-generated)
Depth Deep (Why? conversation) Broad (grasp overall structure)
Best for Deep diving into key chapters Bird's-eye view of a new book, structuring concept relationships, review notes

The two skills are complementary:

  1. Use /oh-my-study-with-me:study-vault to get an overview of the book's entire structure first.
  2. Use /oh-my-study-with-me:study to deep dive into key chapters.
  3. Review using the vault's practice problems.

Design Principles

  1. Source verification: Only write notes after actually reading and confirming the content, not just the filename.
  2. Active recall: Write all answers in collapsed state (details/summary). Make the learner think before expanding.
  3. Concept connections: Every note cross-references related notes.
  4. Self-review: Run a quality checklist at the end.

Phase 1: Source Exploration and Structure Analysis

Detect the source type from the argument or user input:

Web URL Flow

  1. Use WebFetch to retrieve the article/documentation content.
  2. Extract the content structure (headings, sections, subsections).
  3. Build a topic hierarchy from the extracted structure.
  4. Continue to step 3 below.

GitHub Repo Flow

  1. Use WebFetch to fetch the README.
  2. Use gh CLI or WebFetch to get the repo structure (directory tree, key files).
  3. Identify the main architectural components and documentation sections.
  4. Build a topic hierarchy from the repo structure and README.
  5. Continue to step 3 below.

Read the full file on GitHub · 300 lines

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. 10d ago First seen · 300 lines · 0 tokens per session scan A d1827cac13a9

Subscribe to this mod's changes

study-vault is a skill published in the GitHub repository lsh1215/oh-my-study-with-me (8 stars, last pushed 6mo ago), licensed MIT. It adds 56 tokens to every session and 2,522 once invoked, about $0.0003 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 2026-08-31.

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