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.

Use it to extract text from files, convert office documents and data into Markdown, read text from images, and transcribe audio.

It removes the need to handle each file format separately when you need readable text for a coding agent or documentation workflow.

markitdown — Skill for Claude Code by hyperbolic-c/auto-writing

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 hyperbolic-c/auto-writing --skill markitdown

Clone the repo

git clone --depth 1 https://github.com/hyperbolic-c/auto-writing

Made for: Claude Code.

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/hyperbolic-c/auto-writing/markitdown/github.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/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.

Your own site · 80×15

<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="Reviewed on agentmods" width="80" 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. A grade says what 26 rules found in the file — not that it is safe.

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.

Model	Per session	Once invoked
Fable 5.1	$0.00053	$0.03198
Opus 5.5	$0.00021	$0.01279
Sonnet 5.5	$0.00011	$0.00640
Haiku 4.5	$0.00005	$0.00320

Measured 2mo ago against content hash 671133fff4d9, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, 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 2mo 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

Read it on GitHub

Files

What ships with it

12 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.

2mo 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 (7 stars, last pushed 8mo ago), with no licence file. It adds 53 tokens to every session and 3,198 once invoked, about $0.0002 per session on Opus 5.5. 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.

Documents

markitdown next to 6 skills from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
markitdownhyperbolic-c/auto-writing	Skill	7	8mo ago	none	B	53	Claude Code
orbit-notionnexu-io/open-design	Skill	106k	yesterday	Apache-2.0	A	117	Claude Code, Codex
instrument-data-to-allotropeanthropics/knowledge-work-plugins	Skill	35k	2d ago	Apache-2.0	A	123	Claude Code
apify-youtube-transcript-scrapersickn33/agentic-awesome-skills	Skill	49k	yesterday	MIT	A	48	Claude Code
legal-holdanthropics/claude-for-legal	Skill	9.9k	3d ago	Apache-2.0	A	68	Claude Code
ppt-reviewOrkas-AI/Orkas	Skill	9.0k	yesterday	MIT	A	2	Claude Code, Codex
feishuHmbown/CodeWhale	Skill	41k	5d ago	MIT	A	33	Claude Code, Codex

markitdown

Getting it into your agent

Wrote this? Show the measurements

What it costs to keep this loaded

Grade B, and why

Asks for rootmediumPrivilege escalation

The source is not reproduced here

No licence file

What ships with it

What this file has done since we first saw it

markitdown compared with skills from other repositories