study

study is a skill for Claude Code, Codex from alaliqing/claude-paper. It costs 25 tokens per session (2,405 once invoked), scanned A, a copy of claude-paper-study, MIT.

A guided workflow for studying a research paper provided as a PDF. It is designed to build understanding and reusable notes, not just produce a short summary.

In plain words
What is it for?
Use it to read, analyze, and study research papers, including extracting images and preparing materials in the user's language.
Why use it?
It gives readers a structured way to understand difficult research and think about its ideas in depth.

Skill for Claude CodeCodex

Installs and runs on its own, but its text points at files inside its plugin — anything it tells you to read at a ${CLAUDE_PLUGIN_ROOT} path is only there once the plugin is installed. Installing the plugin gets both.

Part of the claude-paper plugin — 3 skills, 1 command, 1 hook shipped together

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/alaliqing/claude-paper/study
Any agent
npx skills add alaliqing/claude-paper --skill study
Clone the repo
git clone --depth 1 https://github.com/alaliqing/claude-paper

Made for: Claude Code, Codex.

Or install claude-paper, the plugin that ships this one along with the rest of its 3 skills, 1 command, 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

README.md
[![agentmods](https://agentmods.dev/badge/skills/alaliqing/claude-paper/study.svg)](https://agentmods.dev/skills/alaliqing/claude-paper/study)
Your own site
<a href="https://agentmods.dev/skills/alaliqing/claude-paper/study"><img src="https://agentmods.dev/badge/skills/alaliqing/claude-paper/study.svg" alt="Measured on agentmods" height="20"></a>
Per session 25 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,405 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin 94% copy Near-identical to another mod 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 $0.00025 $0.02405
Opus 5 $0.00013 $0.01203
Sonnet 5 $0.00005 $0.00481
Haiku 4.5 $0.00003 $0.00241

Measured 4d ago against content hash fbaeecaf2e18, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

study 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 4d ago.

The scan reads SKILL.md. This mod also ships 4 executable files (scripts/download-pdf.cjs, scripts/extract-images.py, scripts/parse-pdf-core.js, …), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

Origin

This is a copy

94% identical to claude-paper-study — 32 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

plugin/skills/study/SKILL.md · 468 lines

How it starts

The opening of the file, as written. The whole thing — 468 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Paper Study Workflow

Invoke this skill with a paper PDF path.

Language Detection: Detect the user's language from their input and generate ALL materials in that language.

  • Example: User says "我们学习一下这篇论文吧" → Generate materials in Chinese
  • Example: User says "Let's study this paper" → Generate materials in English

Core Philosophy

Primary Objective: Facilitate deep conceptual understanding and research-level thinking.

Secondary Objective: Create a structured, reusable paper knowledge system.

This workflow is not just for summarizing — it builds a learning environment around the paper.


Step 0: Check Dependencies (First Run Only)

if [ ! -f "${CLAUDE_PLUGIN_ROOT}/.installed" ]; then
  echo "First run - installing dependencies..."
  cd "${CLAUDE_PLUGIN_ROOT}"
  npm install || exit 1

  # Install Python dependencies for image extraction
  python3 -m pip install pymupdf --user 2>/dev/null || pip3 install pymupdf --user 2>/dev/null || echo "Warning: Failed to install pymupdf"

  touch "${CLAUDE_PLUGIN_ROOT}/.installed"
  echo "Dependencies installed!"
fi

Recommended:

  • Node >= 18
  • Python 3 with pip (for image extraction)

Step 1: Download and Parse PDF

Supports multiple input formats:

  • Local path: ~/Downloads/paper.pdf
  • Direct PDF URL: https://arxiv.org/pdf/1706.03762.pdf
  • arXiv URL: https://arxiv.org/abs/1706.03762

Step 1a: Check input type and download if URL

USER_INPUT="<user-input>"

# Check if input is a URL (starts with http:// or https://)
if [[ "$USER_INPUT" =~ ^https?:// ]]; then
  # Download PDF from URL
  INPUT_PATH=$(node ${CLAUDE_PLUGIN_ROOT}/skills/study/scripts/download-pdf.cjs "$USER_INPUT")
else
  # Use local path directly
  INPUT_PATH="$USER_INPUT"
fi

For URLs, the download script will:

  • Download PDFs to /tmp/claude-paper-downloads/
  • Convert arXiv /abs/ URLs to PDF URLs automatically
  • Validate that URLs point to PDF files
  • Return the local file path for processing

Read the full file on GitHub · 468 lines

Files

What ships with it

4 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. 4d ago First seen · 468 lines · 25 tokens per session scan A fbaeecaf2e18

Subscribe to this mod's changes

study is a skill published in the GitHub repository alaliqing/claude-paper (333 stars, last pushed 20d ago), licensed MIT. It adds 25 tokens to every session and 2,405 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. It is 94% identical to claude-paper-study, differing in 32 lines, and is treated as a copy.

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