markitdown

markitdown is a skill for Claude Code, Codex from hyperbolic-c/auto-writing. It costs 53 tokens per session (3,198 once invoked), scanned B, original, no licence file.

A file-conversion tool that turns documents and other media into Markdown, a plain-text format commonly used in code and documentation. It supports formats such as PDF, Word, PowerPoint, spreadsheets, images with OCR, audio with transcription, web pages, and data files.

In plain words
What is it for?
Use it to extract text from files, convert office documents and data into Markdown, read text from images, and transcribe audio.
Why use it?
It removes the need to handle each file format separately when you need readable text for a coding agent or documentation workflow.

Skill for Claude CodeCodex

Part of the claude-scientific-writer plugin — 30 skills, 1 command 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/hyperbolic-c/auto-writing/markitdown
Any agent
npx skills add hyperbolic-c/auto-writing --skill markitdown
Clone the repo
git clone --depth 1 https://github.com/hyperbolic-c/auto-writing

Made for: Claude Code, Codex.

Or install claude-scientific-writer, the plugin that ships this one along with the rest of its 30 skills, 1 command.

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 markitdown

README.md
[![agentmods](https://agentmods.dev/badge/skills/hyperbolic-c/auto-writing/markitdown.svg)](https://agentmods.dev/skills/hyperbolic-c/auto-writing/markitdown)
Your own site
<a href="https://agentmods.dev/skills/hyperbolic-c/auto-writing/markitdown"><img src="https://agentmods.dev/badge/skills/hyperbolic-c/auto-writing/markitdown.svg" alt="Measured on agentmods" height="20"></a>
Per session 53 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,198 The whole file, excluding the scripts and references it only reads on demand.
Security scan B 1 finding. Scan, not verified.
Origin unknown 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 $0.00053 $0.03198
Opus 5 $0.00026 $0.01599
Sonnet 5 $0.00011 $0.00640
Haiku 4.5 $0.00005 $0.00320

Measured 3d ago against content hash 671133fff4d9, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade B, and why

markitdown scanned grade B 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 3d ago.

The scan reads SKILL.md. This mod also ships 3 executable files (scripts/batch_convert.py, scripts/convert_literature.py, scripts/convert_with_ai.py), 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.

Asks for rootmediumPrivilege escalation

A mod that escalates privileges can change anything on the machine, not only the project.

sudo apt-get install tesseract-ocr
claude-scientific-writer/skills/markitdown/SKILL.md · 490 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

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 · 490 lines · 53 tokens per session scan B 671133fff4d9

Subscribe to this mod's changes

markitdown is a skill published in the GitHub repository hyperbolic-c/auto-writing (6 stars, last pushed 5mo ago), with no licence file. It adds 53 tokens to every session and 3,198 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it B with 1 finding (asks for root). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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