vision-bench

vision-bench is a skill for Claude Code from glebis/claude-skills. It costs 86 tokens per session (906 once invoked), scanned A, original, MIT.

An image-comparison tool that asks vision-capable AI models to score images against structured rubrics, with optional agreement from multiple judges.

In plain words
What is it for?
It helps compare AI-generated images, assess realism and style, inspect documents and charts, evaluate interfaces and products, and save reports.
Why use it?
It makes visual quality checks repeatable across different images and evaluation goals.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the vision-bench plugin — 1 skill shipped together

Good fit It helps compare AI-generated images, assess realism and style, inspect documents and charts, evaluate interfaces and products, and save reports.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/glebis/claude-skills/vision-bench
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 glebis/claude-skills --skill vision-bench
Clone the repo
git clone --depth 1 https://github.com/glebis/claude-skills

Made for: Claude Code.

Or install vision-bench, the plugin that ships this one along with the rest of its 1 skill.

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 vision-bench

README.md
[![agentmods](https://agentmods.dev/badge/skills/glebis/claude-skills/vision-bench/github.svg)](https://agentmods.dev/skills/glebis/claude-skills/vision-bench)
Your own site
<a href="https://agentmods.dev/skills/glebis/claude-skills/vision-bench"><img src="https://agentmods.dev/badge/skills/glebis/claude-skills/vision-bench/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 vision-bench

Your own site · 80×15
<a href="https://agentmods.dev/skills/glebis/claude-skills/vision-bench"><img src="https://agentmods.dev/badge/skills/glebis/claude-skills/vision-bench.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 86 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 906 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 warn 7 Sept 2026
SkillSpector: 1 finding, up to high

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • high Privilege Escalation · line 78
    Code accesses credential files (SSH keys, AWS credentials, etc.). This could indicate credential theft attempts.
    Fix: Remove references to credential paths. Use environment variables or secrets managers. For docs, use placeholder paths (e.g., /path/to/config). Never load .env or token files in production code paths.
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 $0.00086 $0.00906
Opus 5 $0.00043 $0.00453
Sonnet 5 $0.00017 $0.00181
Haiku 4.5 $0.00009 $0.00091

Measured 6d ago against content hash 3cf25b03deff, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

vision-bench 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 6d ago.

The scan reads SKILL.md. This mod also ships 4 executable files (bench.py, judge.py, report.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.

vision-bench/SKILL.md · 94 lines

How it starts

The opening of the file, as written. The whole thing — 94 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Vision Bench — LLM Image Evaluation

Compare images by scoring them with one or more vision LLM judges against structured rubric criteria.

Quick Start

# Install dependencies
pip install pyyaml openai anthropic mistralai

# Score a single image
python bench.py image.png --criteria photorealism --judge gemini-2.5-flash

# Compare two AI-generated images
python bench.py img_a.png img_b.png \
  --criteria text_to_image \
  --prompt "a fox in a snowy forest" \
  --judge gpt-4o

# Multi-judge consensus
python bench.py img.png \
  --criteria portrait \
  --judges gpt-4o gemini-2.5-flash claude-opus-4-5-20251022

# OpenRouter models (any vision-capable model)
python bench.py img_a.png img_b.png \
  --criteria artistic_style \
  --judges "openrouter/meta-llama/llama-4-maverick" "openrouter/mistralai/pixtral-large-2411"

# List all presets
python bench.py --list-presets

# Save report to file
python bench.py img.png --criteria chart_analysis --save report.md

Presets

Preset Use Case
text_to_image Compare AI image generators (Midjourney, DALL-E, Flux)
photorealism How convincingly an image looks like a photo
artistic_style Style consistency, composition, color harmony
portrait AI-generated portrait quality and realism
product_photo E-commerce product image quality
document_ocr Document text extraction and layout understanding
chart_analysis Chart and data visualization comprehension
invoice Financial document field extraction accuracy
ui_screenshot App/web screenshot understanding
scientific Scientific/medical image accuracy
alt_text Accessibility image description quality

Custom criteria: pass any .yaml file as --criteria path/to/my.yaml.

Judge Providers

Prefix Provider Example
gpt-, o1, o3, o4 OpenAI gpt-4o
claude- Anthropic claude-sonnet-4-5-20251022
gemini- Google Gemini gemini-2.5-flash
pixtral-, mistral-, ministral- Mistral pixtral-12b-2409
openrouter/ OpenRouter (any model) openrouter/meta-llama/llama-4-maverick

Read the full file on GitHub · 94 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. 6d ago First seen · 94 lines · 86 tokens per session scan A 3cf25b03deff

Subscribe to this mod's changes

vision-bench is a skill published in the GitHub repository glebis/claude-skills (374 stars, last pushed 8d ago), licensed MIT. It adds 86 tokens to every session and 906 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 2026-09-03.

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