historical-ocr

historical-ocr is a skill for Claude Code, Codex from xjtulyc/awesome-rosetta-skills. It costs 41 tokens per session (5,050 once invoked), scanned B, original, no licence file.

A toolkit for reading scanned historical documents with OCR, software that converts images of text into editable text. It uses image preparation, engines suited to historical typefaces, confidence checks, and spelling-based correction.

In plain words
What is it for?
Use it to transcribe old books, newspapers, and manuscripts, filter low-confidence results, and improve OCR output with post-processing.
Why use it?
Historical scans often contain unusual fonts, damaged pages, and spelling that ordinary OCR handles poorly. These steps help identify uncertain text and correct common errors.

Skill for Claude CodeCodex

Which agent this was written for is unclear — body not stored (licence); the path alone says nothing.

Good fit Use it to transcribe old books, newspapers, and manuscripts, filter low-confidence results, and improve OCR output with post-processing.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/xjtulyc/awesome-rosetta-skills/historical-ocr
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 xjtulyc/awesome-rosetta-skills --skill historical-ocr
Clone the repo
git clone --depth 1 https://github.com/xjtulyc/awesome-rosetta-skills

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 historical-ocr

README.md
[![agentmods](https://agentmods.dev/badge/skills/xjtulyc/awesome-rosetta-skills/historical-ocr/github.svg)](https://agentmods.dev/skills/xjtulyc/awesome-rosetta-skills/historical-ocr)
Your own site
<a href="https://agentmods.dev/skills/xjtulyc/awesome-rosetta-skills/historical-ocr"><img src="https://agentmods.dev/badge/skills/xjtulyc/awesome-rosetta-skills/historical-ocr/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 historical-ocr

Your own site · 80×15
<a href="https://agentmods.dev/skills/xjtulyc/awesome-rosetta-skills/historical-ocr"><img src="https://agentmods.dev/badge/skills/xjtulyc/awesome-rosetta-skills/historical-ocr.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 41 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 5,050 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00041 $0.05050
Opus 5 $0.00020 $0.02525
Sonnet 5 $0.00008 $0.01010
Haiku 4.5 $0.00004 $0.00505

Measured 8d ago against content hash 901afc584b62, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade B, and why

historical-ocr 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 8d 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.

Asks for rootmediumPrivilege escalation

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

sudo apt-get update && sudo apt-get install -y tesseract-ocr tesseract-ocr-eng \
skills/13-history/historical-ocr/SKILL.md · 628 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

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. 8d ago First seen · 628 lines · 41 tokens per session scan B 901afc584b62

Subscribe to this mod's changes

historical-ocr is a skill published in the GitHub repository xjtulyc/awesome-rosetta-skills (34 stars, last pushed 5mo ago), with no licence file. It adds 41 tokens to every session and 5,050 once invoked, about $0.0002 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 2026-09-03.

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