ocr

ocr is a skill for Claude Code from diillson/chatcli. It costs 53 tokens per session (529 once invoked), scanned A, original, Apache-2.0.

An offline text-recognition tool for reading words from images and scanned PDFs. OCR means optical character recognition: software that turns text in a picture into editable text.

In plain words
What is it for?
Use it to extract text from images, screenshots, and scanned PDFs, including documents in supported languages.
Why use it?
It avoids typing text from screenshots or scans and keeps documents on the local machine.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

Good fit Use it to extract text from images, screenshots, and scanned PDFs, including documents in supported languages.

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

Made for: Claude Code.

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 ocr

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

Your own site · 80×15
<a href="https://agentmods.dev/skills/diillson/chatcli/ocr"><img src="https://agentmods.dev/badge/skills/diillson/chatcli/ocr.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 529 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 $0.00053 $0.00529
Opus 5.5 $0.00021 $0.00212
Sonnet 5.5 $0.00011 $0.00106
Haiku 4.5 $0.00005 $0.00053

Measured 1mo ago against content hash 032245b61ccb, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

ocr 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 1mo 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.

pkg/persona/builtin/skills/ocr/SKILL.md · 55 lines

What it actually says

OCR (image / scan → text)

Local, offline OCR via Tesseract — no API, no upload.

Step 0 — Detect

  • macOS / Linux: command -v tesseract pdftoppm 2>/dev/null; tesseract --list-langs 2>/dev/null
  • Windows: Get-Command tesseract -ErrorAction SilentlyContinue

Install: brew install tesseract / apt install tesseract-ocr / choco install tesseract. Language packs: tesseract-ocr-por (Portuguese), -eng (English), etc.

Image → text

tesseract input.png stdout -l eng
tesseract input.jpg stdout -l por+eng     # multi-language

Write to a file with tesseract input.png out → out.txt, then read with @read.

Scanned PDF → text

Rasterize pages first, then OCR each:

pdftoppm -png -r 300 scan.pdf page
for f in page-*.png; do tesseract "$f" stdout -l por+eng; done > scan.txt

(On Windows, loop with PowerShell Get-ChildItem page-*.png | % { tesseract $_.Name stdout -l por+eng }.)

Tips for accuracy

  • Use 300 DPI for scans; higher helps small text.
  • -l must match the document language — pick por for Portuguese, or it mangles accents.
  • For skewed/noisy scans, mention that pre-processing (deskew/threshold via ImageMagick) improves results.

Rules

  • Choose the language pack from the document, not the UI locale.
  • Present the extracted text, then offer to summarize/translate/feed it to another skill.
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. 1mo ago First seen · 55 lines · 53 tokens per session scan A 032245b61ccb

Subscribe to this mod's changes

ocr is a skill published in the GitHub repository diillson/chatcli (93 stars, last pushed today), licensed Apache-2.0. It adds 53 tokens to every session and 529 once invoked, about $0.0002 per session on Opus 5.5. 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 2026-09-03.

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