nothing: Skill for Claude Code

.agents/skills/vision/SKILL.md

vision is a skill for Claude Code, Codex from gridaco/nothing. It costs 132 tokens per session (1,404 once invoked), scanned A, a copy of vision, Apache-2.0.

A local image-questioning tool that uses an Ollama vision model to inspect PNG, JPEG, or WebP files without placing the image in the main agent's context. It can answer questions about visible content and layout.

In plain words
What is it for?
Use it to describe screenshots, check whether canvases rendered, look for overlapping interface elements, annotate assets, or ask other visual questions about image files.
Why use it?
It lets automated checks examine screenshots while using fewer main-agent vision tokens, for example to detect missing content or overlapping elements.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: installed under .agents/ (shared by several agents).

This is gridaco/nothing's own configuration. It tells Claude Code and Codex how to work on nothing itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything nothing configures →

Reuse

Borrowing it

Nothing to install: this file belongs to gridaco/nothing. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/gridaco/nothing/main/.agents/skills/vision/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/gridaco/nothing

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 vision

README.md
[![agentmods](https://agentmods.dev/badge/skills/gridaco/nothing/vision/github.svg)](https://agentmods.dev/skills/gridaco/nothing/vision)
Your own site
<a href="https://agentmods.dev/skills/gridaco/nothing/vision"><img src="https://agentmods.dev/badge/skills/gridaco/nothing/vision/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

Your own site · 80×15
<a href="https://agentmods.dev/skills/gridaco/nothing/vision"><img src="https://agentmods.dev/badge/skills/gridaco/nothing/vision.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 132 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,404 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 100% copy Near-identical to another mod 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 $0.00132 $0.01404
Opus 5.5 $0.00053 $0.00562
Sonnet 5.5 $0.00026 $0.00281
Haiku 4.5 $0.00013 $0.00140

Measured 2mo ago against content hash dfd614c58607, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

vision 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 2mo ago.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/ask.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.

Origin

This is a copy

100% identical to vision — 4 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

.agents/skills/vision/SKILL.md · 165 lines

How it starts

The opening of the file, as written. The whole thing — 165 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Vision — Local Image Querying via Ollama

Ask natural-language questions about images without passing them to the main agent as visual input. Useful for verifying screenshots, annotating assets, or building automated checks around visual output.

When to Use This Skill

  • Describing a screenshot for a PR description or user-facing document
  • Checking whether an automated browser run produced visible canvas content
  • Asking "do any elements overlap?" on a rendered output
  • Any question where the answer is in the pixels but you don't want to use vision tokens in the main context

Quick Reference

All commands use uv run — dependencies are installed automatically.

SCRIPT=.agents/skills/vision/scripts/ask.py

# health check (fast, no image, confirms Ollama + model respond)
uv run $SCRIPT --ping

# system info — memory, storage, installed models
uv run $SCRIPT --info
uv run $SCRIPT --memory
uv run $SCRIPT --storage

# describe an image (default prompt)
uv run $SCRIPT path/to/image.png

# explicit shortcut
uv run $SCRIPT path/to/image.png describe

# custom question
uv run $SCRIPT path/to/image.png \
  --prompt "Do you see any overlapping UI elements?"

uv run $SCRIPT canvas.png \
  --prompt "Does this canvas contain any designed content, or is it empty?"

# optional: pin a specific Gemma 4 tag (default is any installed gemma4)
uv run $SCRIPT image.png --model gemma4:e4b

# list installed Gemma 4 vision models
uv run $SCRIPT --list-models

Prerequisites

Ollama must be running locally. The script connects to http://localhost:11434 and fails immediately if it cannot reach it.

# start Ollama (if not already running)
ollama serve

# install Gemma 4 (multimodal — required for this skill)
ollama pull gemma4

The script does not install models. If Gemma 4 is not installed it prints the list of installed models and a pull suggestion, then exits.

uv is required to run the script (handles dependency installation automatically). No requirements.txt or manual pip install needed.

Read the full file on GitHub · 165 lines

Files

What ships with it

1 file 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.

  1. 2mo ago First seen · 165 lines · 132 tokens per session scan A dfd614c58607

Subscribe to this mod's changes

vision is a skill published in the GitHub repository gridaco/nothing (54 stars, last pushed 1mo ago), licensed Apache-2.0. It adds 132 tokens to every session and 1,404 once invoked, about $0.0005 per session on Opus 5.5. A static security scan graded it A with 0 findings. It is 100% identical to vision, differing in 4 lines, and is treated as a copy.

Related

Other skills, from other repositories