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gemini-watermark-remover

gemini-watermark-remover is a skill for Claude Code from rookie-ricardo/erduo-skills. It costs 55 tokens per session (330 once invoked), scanned A, original, MIT.

A Python command-line tool that removes the visible Gemini AI watermark from images by changing the affected pixels. It uses Pillow, a Python library for image processing.

In plain words
What is it for?
Use it to process one image or multiple Gemini-generated images, providing an input path and an output path.
Why use it?
It automates removal of the known bottom-right watermark instead of requiring manual image editing.

Skill for Claude Code

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

Part of the image-tools plugin — 2 skills shipped together

not rated 943repo +7 3mo ago A scan Socket: passSnyk: passSkillSpector: pass 55 tokens original MIT

Good fit Use it to process one image or multiple Gemini-generated images, providing an input path and an output path.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/rookie-ricardo/erduo-skills/gemini-watermark-remover
View source ↗ rookie-ricardo/erduo-skills
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 rookie-ricardo/erduo-skills --skill gemini-watermark-remover
Clone the repo
git clone --depth 1 https://github.com/rookie-ricardo/erduo-skills

Made for: Claude Code.

Or install image-tools, the plugin that ships this one along with the rest of its 2 skills.

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 gemini-watermark-remover

README.md
[![agentmods](https://agentmods.dev/badge/skills/rookie-ricardo/erduo-skills/gemini-watermark-remover/github.svg)](https://agentmods.dev/skills/rookie-ricardo/erduo-skills/gemini-watermark-remover)
Your own site
<a href="https://agentmods.dev/skills/rookie-ricardo/erduo-skills/gemini-watermark-remover"><img src="https://agentmods.dev/badge/skills/rookie-ricardo/erduo-skills/gemini-watermark-remover/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 gemini-watermark-remover

Your own site · 80×15
<a href="https://agentmods.dev/skills/rookie-ricardo/erduo-skills/gemini-watermark-remover"><img src="https://agentmods.dev/badge/skills/rookie-ricardo/erduo-skills/gemini-watermark-remover.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 55 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 330 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
  • Socket pass 7 Oct 2026
  • Snyk pass 7 Oct 2026
  • 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 $0.00055 $0.00330
Opus 5.5 $0.00022 $0.00132
Sonnet 5.5 $0.00011 $0.00066
Haiku 4.5 $0.00006 $0.00033

Measured 2mo ago against content hash 51ee814927e7, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

gemini-watermark-remover 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/remove_watermark.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.

skills/gemini-watermark-remover/SKILL.md · 47 lines

What it actually says

Gemini Watermark Remover

Dependencies

  • Python 3.9+
  • Pillow (install with pip install -r requirements.txt)

Quick start

  1. Install dependencies in the scripts folder:
    • cd skills/gemini-watermark-remover/scripts && pip install -r requirements.txt
  2. Run the CLI:
    • python remove_watermark.py <input-image> <output-image>

CLI usage

  • Parameters:
    • input-image: path to the Gemini watermarked image
    • output-image: path for the cleaned image (format inferred from extension)

Example:

python remove_watermark.py ./in.png ./out.png

What this skill provides

  • scripts/remove_watermark.py: CLI entry point and core algorithm.
  • assets/bg_48.png, assets/bg_96.png: Pre-captured watermark alpha maps.
  • references/algorithm.md: Math, detection rules, and limits.

Workflow

  1. Use remove_watermark.py for one-off processing.
  2. If you need to adjust detection rules or alpha logic, read references/algorithm.md.

Notes

  • The script uses Pillow for image IO and per-pixel edits.
  • Output format is inferred from the output file extension by Pillow.
Files

What ships with it

5 files 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 · 47 lines · 55 tokens per session scan A 51ee814927e7

Subscribe to this mod's changes

gemini-watermark-remover is a skill published in the GitHub repository rookie-ricardo/erduo-skills (943 stars, last pushed 3mo ago), licensed MIT. It adds 55 tokens to every session and 330 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 2026-08-30.

Creative and media
Related

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