xiaomacoltai/math-modeling-skill · tools/pdf/SKILL.md

pdf skillA

pdf is agent-read markdown (skill) from xiaomacoltai/math-modeling-skill: Use this skill whenever the user wants to do anything with PDF files. This includes reading or extracting text/tables from PDFs, combining or merging multiple PDFs into one, splitting PDFs apart, rotating pages, adding watermarks, creating new PDFs, filling PDF forms, encrypting/decrypting PDFs, extracting images, and OCR on scanned PDFs to make them searchable. If the user mentions a .pdf file or asks to produce one, use this skill..

Indexed from public GitHub and served as immutable, content-addressed versions. Install it pinned to an exact SHA-256 with the mdr CLI, and every file is verified against the hash recorded here before it reaches your agent. The deterministic audit below grades the latest version, and the same file always earns the same grade.

How to install

Latest version
mdr add xiaomacoltai/math-modeling-skill/pdf@git:20260811.bd7780e
Exact content
mdr add xiaomacoltai/math-modeling-skill/pdf@sha256:6c29abbce8b2dd34

Pin to a label to follow the author's releases, or to a sha256 to freeze the exact bytes forever. Either way the resolved hash is written to mdr.lock, and mdr install reproduces it on any machine.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_3eiysoqymw5kzqia.svg)](https://markdownregistry.com/a/art_3eiysoqymw5kzqia)

0 badge views in 30 days

Versions

versioncommittedcommitsizeaudit
git:20260811.bd7780e latest2026-08-11 bd7780e 8,072 BA view · diff
git:20260304.6e59f1c2026-03-04 6e59f1c 8,072 BA view

Audit of the latest version

A  17 of 17 checks passed. Deterministic, no model, same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (8072 bytes)
  • pass: No zero-width or bidi control characters
  • pass: No instruction hidden inside an HTML comment
  • pass: No link to an exfiltration or paste host
  • pass: No credential-shaped string
  • pass: No instruction to send local credentials anywhere
  • pass: No text hidden with inline styles
  • pass: No prompt-injection phrasing
  • pass: No curl or wget piped into a shell
  • pass: No recursive delete of root, home or parent
  • pass: No instruction to read or print local credentials
  • pass: No base64 blob over 200 characters
  • pass: No link to a raw IP address
  • pass: No script tag

Source

GitHub

xiaomacoltai/math-modeling-skill · 1,155 stars · license none · pushed 2026-09-06 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_3eiysoqymw5kzqia
GET https://markdownregistry.com/api/v1/resolve?ref=xiaomacoltai/math-modeling-skill/pdf
GET https://markdownregistry.com/api/v1/blob/6c29abbce8b2dd347498c907c5f21cf29f6baed0659928f59d4345d07e5cd9da