visionpower

visionpower is a skill for Claude Code, Codex from RunhuaHuang/VisionPower. It costs 100 tokens per session (3,011 once invoked), scanned B, original, MIT.

An image-understanding helper that reads text in screenshots, interprets charts and diagrams, and describes photos, mockups, or scanned documents.

In plain words
What is it for?
Use it to extract screenshot text, explain diagrams or charts, and inspect photos, user interfaces, or document scans.
Why use it?
It helps answer questions about visual information without requiring you to describe or transcribe the image yourself.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: reads .claude/ paths.

Good fit Use it to extract screenshot text, explain diagrams or charts, and inspect photos, user interfaces, or document scans.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/runhuahuang/visionpower/visionpower-skill
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 RunhuaHuang/VisionPower --skill visionpower-skill
Clone the repo
git clone --depth 1 https://github.com/RunhuaHuang/VisionPower

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 visionpower

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

Your own site · 80×15
<a href="https://agentmods.dev/skills/runhuahuang/visionpower/visionpower-skill"><img src="https://agentmods.dev/badge/skills/runhuahuang/visionpower/visionpower-skill.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 100 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,011 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. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 5 findings, up to medium

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 →

  • medium Rogue Agent · line 52
    Skill establishes unauthorized persistence across sessions via cron jobs, startup scripts, or state files. Session persistence allows an attacker to maintain access beyond the current interaction.
    Fix: Remove any persistence mechanisms (cron jobs, startup scripts, state files). Skills should not maintain state across sessions without explicit user consent.
  • medium Data Exfiltration · line 63
    Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.
    Fix: Verify the destination URL is trusted and necessary. Remove or replace with documented APIs. Ensure no secrets, tokens, or PII are transmitted.
  • medium Data Exfiltration · line 64
    Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.
    Fix: Verify the destination URL is trusted and necessary. Remove or replace with documented APIs. Ensure no secrets, tokens, or PII are transmitted.
  • medium Data Exfiltration · line 83
    Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.
    Fix: Verify the destination URL is trusted and necessary. Remove or replace with documented APIs. Ensure no secrets, tokens, or PII are transmitted.
  • medium Privilege Escalation · line 80
    Commands invoke sudo or root privileges. Verify this elevated access is necessary and justified.
    Fix: Avoid sudo/root unless strictly required. Prefer least-privilege patterns. If elevation is needed, document the justification and scope.
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 $0.00100 $0.03011
Opus 5 $0.00050 $0.01505
Sonnet 5 $0.00020 $0.00602
Haiku 4.5 $0.00010 $0.00301

Measured 9d ago against content hash 61ba18fb93de, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade B, and why

visionpower 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 9d ago.

The scan reads SKILL.md. This mod also ships 1 executable file (describe_image.mjs), 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.

Asks for rootmediumPrivilege escalation

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

chmod 600 ~/.visionpower/config.json
VisionPower-Skill/SKILL.md · 220 lines

How it starts

The opening of the file, as written. The whole thing — 220 lines — stays where its author put it; the contents beside it link to each section on GitHub.

VisionPower

Understand one or more images with a vision model. This skill is self-contained: the script describe_image.mjs sits next to this file and runs with plain Node.js — no npm install, no CLI to install, no extra dependencies. It only needs Node 18.14.1+ and a vision model API key.

Call the script by its absolute path. If this skill is installed at ~/.claude/skills/visionpower/, the script is ~/.claude/skills/visionpower/describe_image.mjs.

Response style (important)

Keep the mechanics invisible. The user wants the answer about their image, not a play-by-play of how you got it.

  • Do not narrate or pre-check on normal calls. Do not run node --version, do not cat the config file, and do not announce "checking environment", "config exists", "running the script", etc. Just run the script once and answer. First-time setup is the only exception.
  • Run the script directly. Assume it is already set up. The script fails fast with a clear message if Node or the API key is missing — only THEN fall back to setup.
  • Remember verified setup. The script writes a state marker at ~/.visionpower/skill-state.json after any successful model call. If that marker says "configVerified": true, never do setup/config preflight on later calls; only ask the user to reconfigure if a later script run fails with a missing-key/auth/config error.
  • Do not expose internals in your reply: no command lines, no absolute paths, no raw request JSON, no model/config details. Present only the result (or a brief, plain-language error if it failed).
  • Reply in the user's language, concise and direct — as if you simply looked at the image.

First-time setup (only when not configured)

Skip this on normal calls. Only do it the very first time, or after the script returns a missing-key, authentication, or configuration error. The settings are saved to a persistent config file ~/.visionpower/config.json that the script reads automatically on every run, so the key survives across sessions and you never configure it again.

Read the full file on GitHub · 220 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. 9d ago First seen · 220 lines · 100 tokens per session scan B 61ba18fb93de

Subscribe to this mod's changes

visionpower is a skill published in the GitHub repository RunhuaHuang/VisionPower (72 stars, last pushed 18d ago), licensed MIT. It adds 100 tokens to every session and 3,011 once invoked, about $0.0005 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 2026-08-30.

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