What is document-to-markdown-visual-qa?

A workflow for turning digital PDF documents into Markdown, a plain-text format, while checking that tables, figures, formulas, and code were preserved.

It helps convert one or more PDFs, compare the extracted text with rendered pages, and track conversion and quality checks.

It reduces errors that can occur when software extracts PDF content without checking the original page appearance.

document-to-markdown-visual-qa — Skill for Codex by Yuleno

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 Yuleno/skills --skill document-to-markdown-visual-qa

Clone the repo

git clone --depth 1 https://github.com/Yuleno/skills

Made for: 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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/yuleno/skills/document-to-markdown-visual-qa/github.svg)](https://agentmods.dev/skills/yuleno/skills/document-to-markdown-visual-qa)

Your own site

<a href="https://agentmods.dev/skills/yuleno/skills/document-to-markdown-visual-qa"><img src="https://agentmods.dev/badge/skills/yuleno/skills/document-to-markdown-visual-qa/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/yuleno/skills/document-to-markdown-visual-qa"><img src="https://agentmods.dev/badge/skills/yuleno/skills/document-to-markdown-visual-qa.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 84 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 1,499 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.

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.

Model	Per session	Once invoked
Fable 5.1	$0.00084	$0.01499
Opus 5	$0.00042	$0.00749
Sonnet 5	$0.00017	$0.00300
Haiku 4.5	$0.00008	$0.00150

Measured 8d ago against content hash ff0b3b582451, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

document-to-markdown-visual-qa 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 8d ago.

The scan reads SKILL.md. This mod also ships 9 executable files (scripts/build_review_units.py, scripts/common.py, scripts/extract_pdf_images.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.

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/document-to-markdown-visual-qa/SKILL.md · 106 lines

How it starts

The opening of the file, as written. The whole thing — 106 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Document to Markdown Visual QA

Produce one semantically faithful Markdown document for AI and human reading. Treat the source PDF and rendered pages as authority; treat every parser output as a candidate.

1. Run the visual preflight

Pause before rendering pages for a remote model or dispatching visual workers. Ask the user:

Can the current model inspect images directly?
If not, which visual MCP/tool is available?
May that route receive document pages, and may it be called concurrently?
What max_workers limit should apply, or should the harness choose its safe default?

Record visual_route as native, mcp:<tool-name>, or none. Proceed without visual review only when the user selects none; the final status must then be Needs Review unless every visual fidelity requirement is otherwise proven.

Completion criterion: the user has explicitly selected the route and upload/concurrency boundary for this run.

2. Check dependencies

Run:

python scripts/preflight.py --input "<source.pdf>" [--renderer-python "<python-with-pymupdf>"]

Require MarkItDown, pypdf, and pdfplumber for the baseline. Require PyMuPDF, pypdfium2, or a working pdftoppm for rendering. The conversion and rendering interpreters may differ; when the harness supplies a renderer in another Python, pass that interpreter with --renderer-python and run render_pdf.py with it. Report missing dependencies and wait for installation permission; do not install them automatically. Keep Docling and other specialized parsers optional.

Completion criterion: the preflight returns ready: true, or the user accepts an explicitly degraded route.

3. Prepare the immutable baseline

Run with the Python interpreter that contains MarkItDown:

python scripts/prepare_pdf.py "<source.pdf>"

This creates document.raw.md, an initial document.reviewed.md, a resumable manifest, and a hash-keyed work directory. Preserve document.raw.md unchanged. Generate parser candidates under the work directory when a specialized parser is available; never replace the baseline with a candidate.

Read the full file on GitHub · 106 lines

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.

8d ago First seen · 106 lines · 84 tokens per session scan A ff0b3b582451

Subscribe to this mod's changes

document-to-markdown-visual-qa is a skill published in the GitHub repository Yuleno/skills (2 stars, last pushed 27d ago), licensed MIT. It adds 84 tokens to every session and 1,499 once invoked, about $0.0004 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 2026-08-31.

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document-to-markdown-visual-qa