split-pdf

split-pdf is a skill for Claude Code from flonat/flonat-research. It costs 48 tokens per session (2,866 once invoked), scanned A, original, MIT.

A workflow for downloading an academic paper as a PDF, splitting it into small page groups, and reading those groups in sequence. It is for papers that are not available through Paperpile, a research-library tool.

In plain words
What is it for?
It helps review, summarize, or deeply read a specific academic paper from a file path or search query.
Why use it?
Long PDFs can exceed an agent's reading limit and lead to incomplete or unreliable summaries. Splitting the file keeps each reading step manageable.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter. Also seen: mentions CLAUDE.md; mentions subagents.

Good fit It helps review, summarize, or deeply read a specific academic paper from a file path or search query.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/flonat/flonat-research/split-pdf
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.

Any agent
npx skills add flonat/flonat-research --skill split-pdf
Clone the repo
git clone --depth 1 https://github.com/flonat/flonat-research

Made for: Claude Code.

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 split-pdf

README.md
[![agentmods](https://agentmods.dev/badge/skills/flonat/flonat-research/split-pdf/github.svg)](https://agentmods.dev/skills/flonat/flonat-research/split-pdf)
Your own site
<a href="https://agentmods.dev/skills/flonat/flonat-research/split-pdf"><img src="https://agentmods.dev/badge/skills/flonat/flonat-research/split-pdf/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 split-pdf

Your own site · 80×15
<a href="https://agentmods.dev/skills/flonat/flonat-research/split-pdf"><img src="https://agentmods.dev/badge/skills/flonat/flonat-research/split-pdf.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 48 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,866 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
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 $0.00048 $0.02866
Opus 5 $0.00024 $0.01433
Sonnet 5 $0.00010 $0.00573
Haiku 4.5 $0.00005 $0.00287

Measured 8d ago against content hash f52112b967f8, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

split-pdf scanned grade A with 1 finding 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 8d 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

allowed-tools: Bash(uv:*), Bash(uv*), Bash(curl*), Bash(wget*), Bash(mkdir*), Bash(ls*), Bash(rm*), Read, Write, Edit, WebSearch, WebFetch, Agent, Bash(paperpile*)
skills/split-pdf/SKILL.md · 224 lines

How it starts

The opening of the file, as written. The whole thing — 224 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Split-PDF: Download, Split, and Deep-Read Academic Papers

CRITICAL RULE: Never read a full PDF. Never. Only read the 4-page split files, and only 3 splits at a time (~12 pages). Reading a full PDF will either crash the session with an unrecoverable "prompt too long" error — destroying all context — or produce shallow, hallucinated output. There are no exceptions.

When This Skill Is Invoked

The user wants you to read, review, or summarize an academic paper. The input is either:

  • A file path to a local PDF (e.g., ./articles/smith_2024.pdf)
  • A search query or paper title (e.g., "Gentzkow Shapiro Sinkinson 2014 competition newspapers")

Important: You cannot search for a paper you don't know exists. The user MUST provide either a file path or a specific search query. If the user invokes this skill without specifying what paper to read, ask them. Do not guess.

Prefer Paperpile when possible. If the paper is in Paperpile, call paperpile get-pdf-text(citekey=KEY) directly — you get the full structured text without any splitting. Only fall through to this skill's page-split workflow when the PDF is NOT in Paperpile (preprints, referee materials, ad-hoc reading, third-party shared PDFs).

Step 1: Acquire the PDF

If a local file path is provided:

  • Verify the file exists
  • Use the PDF in place — do not move or copy it. The folder containing the PDF becomes the working directory for splits and extracts.
  • If downstream work will cite page numbers, run the read-integrity preflight first (pdf-extract <file> --preflight) — a non-PASS verdict means page indices from this file are untrustworthy (truncated or silently repaired document).
  • Proceed to Step 2

If a search query or paper title is provided:

Determine the download directory:

  • Inside a research project (has CLAUDE.md, data/, paper/, etc.): use ./articles/ in the project directory (create if needed).
  • Outside a project (e.g., ad-hoc reading from Task Management root): use to-sort/downloads/ in the Task Management folder.

Read the full file on GitHub · 224 lines

Files

What ships with it

1 file 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. 8d ago First seen · 224 lines · 48 tokens per session scan A f52112b967f8

Subscribe to this mod's changes

split-pdf is a skill published in the GitHub repository flonat/flonat-research (133 stars, last pushed 16d ago), licensed MIT. It adds 48 tokens to every session and 2,866 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.

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