markitdown-document-ingestion

markitdown-document-ingestion is a skill for Claude Code, Codex from AlekseiUL/hermes-researcher-agent. It costs 60 tokens per session (999 once invoked), scanned A, original, MIT.

A document-conversion workflow that turns research files into readable Markdown before they are reviewed. It supports formats such as PDF, Word, PowerPoint, Excel, HTML, CSV, JSON, XML, EPUB, and small ZIP archives.

In plain words
What is it for?
Use it to prepare reports, papers, spreadsheets, presentations, web pages, and source bundles for summaries, evidence tracking, and research briefs.
Why use it?
It gives researchers a consistent text version to analyze while keeping document conversion separate from checking whether the information is reliable.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Needs its repository: it runs a file that does not travel with it, so clone the repository first. The line is markitdown ./sources/report.pdf -o ./research-artifacts/document-ingestion/report.md.

Good fit Use it to prepare reports, papers, spreadsheets, presentations, web pages, and source bundles for summaries, evidence tracking, and research briefs.

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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/AlekseiUL/hermes-researcher-agent
agentmods
npx agentmods add skills/alekseiul/hermes-researcher-agent/markitdown-document-ingestion

Made for: Claude Code, Codex.

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-document-ingestion

README.md
[![agentmods](https://agentmods.dev/badge/skills/alekseiul/hermes-researcher-agent/markitdown-document-ingestion/github.svg)](https://agentmods.dev/skills/alekseiul/hermes-researcher-agent/markitdown-document-ingestion)
Your own site
<a href="https://agentmods.dev/skills/alekseiul/hermes-researcher-agent/markitdown-document-ingestion"><img src="https://agentmods.dev/badge/skills/alekseiul/hermes-researcher-agent/markitdown-document-ingestion/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 markitdown-document-ingestion

Your own site · 80×15
<a href="https://agentmods.dev/skills/alekseiul/hermes-researcher-agent/markitdown-document-ingestion"><img src="https://agentmods.dev/badge/skills/alekseiul/hermes-researcher-agent/markitdown-document-ingestion.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 60 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 999 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. 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 $0.00060 $0.00999
Opus 5 $0.00030 $0.00500
Sonnet 5 $0.00012 $0.00200
Haiku 4.5 $0.00006 $0.00100

Measured 12d ago against content hash c7a8e71ebc6e, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

markitdown-document-ingestion 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 12d 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/markitdown-document-ingestion/SKILL.md · 126 lines

How it starts

The opening of the file, as written. The whole thing — 126 lines — stays where its author put it; the contents beside it link to each section on GitHub.

MarkItDown Document Ingestion

When to use

Use this skill when a research task includes a document or file that should become readable Markdown before analysis:

  • public PDFs, reports, whitepapers, policy files, manuals, or papers;
  • DOCX / PPTX / XLSX files shared as research sources;
  • HTML files, CSV, JSON, XML, EPUB;
  • trusted small ZIP bundles of public documents after size/file-count inspection;
  • source packs that need to feed a source ledger or research brief.

The goal is not to make the document “true”. The goal is to create a readable analysis copy, then run the normal research evidence gate.

Microsoft MarkItDown is the preferred lightweight converter when available:

markitdown input.pdf -o output.md
markitdown input.docx -o output.md
markitdown input.pptx -o output.md

If the CLI is not installed, install it in your own environment according to the upstream project docs, for example in a local virtual environment:

python3 -m pip install markitdown

Do not put credentials or private documents into third-party services during conversion unless the user explicitly approves that path.

Safe workflow

  1. Confirm the document is in scope for the research task.
  2. Convert one explicit file, not a broad directory.
  3. For archives, inspect file count, total size, and paths before extraction or conversion; reject path traversal, huge archives, and unknown nested content.
  4. Save the Markdown copy under a task-specific working folder.
  5. Check the output before relying on it.
  6. Cite the original document as source-of-truth; Markdown is only an analysis copy.

Example:

mkdir -p research-artifacts/document-ingestion
markitdown ./sources/report.pdf -o ./research-artifacts/document-ingestion/report.md
wc -c ./research-artifacts/document-ingestion/report.md
sed -n '1,80p' ./research-artifacts/document-ingestion/report.md

Verification after conversion

Check for common failure modes:

  • empty or tiny Markdown output;
  • only metadata but no body;
  • garbled text or broken Cyrillic/Unicode;
  • missing pages, tables, speaker notes, or slides;
  • tables converted as unreadable plain text;
  • scanned PDF produced almost no text;
  • private data accidentally included in the output.

Read the full file on GitHub · 126 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. 12d ago First seen · 126 lines · 60 tokens per session scan A c7a8e71ebc6e

Subscribe to this mod's changes

markitdown-document-ingestion is a skill published in the GitHub repository AlekseiUL/hermes-researcher-agent (57 stars, last pushed 7d ago), licensed MIT. It adds 60 tokens to every session and 999 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 2026-08-30.