guillaumemeyer/watermarks-remover · skills/remove-ai-marks/SKILL.md

remove-ai-marks skillB

remove-ai-marks is agent-read markdown (skill) from guillaumemeyer/watermarks-remover: Remove multi-vendor AI provenance marks: invisible Unicode (Layer A), statistical text watermarks via rewrite (Layer B, always offer), and C2PA/EXIF/XMP/container metadata on PNG/JPEG/WebP/SVG/PDF/DOCX/ODT/HTML/MD/TEX. Covers Claude, Gemini/SynthID-class, OpenAI provenance, and open-LLM sampling marks. Use when the user asks to strip watermarks, remove C2PA/Content Credentials, clean AI metadata, remove invisible Unicode, anti-detect clean AI output, or runs /remove-ai-marks (aliases: /remove-cl.

Indexed from public GitHub and served as immutable, content-addressed versions. Install it pinned to an exact SHA-256 with the mdr CLI, and every file is verified against the hash recorded here before it reaches your agent. The deterministic audit below grades the latest version, and the same file always earns the same grade.

How to install

Latest version
mdr add guillaumemeyer/watermarks-remover/remove-ai-marks@git:20260909.e2a699b
Exact content
mdr add guillaumemeyer/watermarks-remover/remove-ai-marks@sha256:bef308cdeffc8bca

Pin to a label to follow the author's releases, or to a sha256 to freeze the exact bytes forever. Either way the resolved hash is written to mdr.lock, and mdr install reproduces it on any machine.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_r4srb6pp3oh3f2x5.svg)](https://markdownregistry.com/a/art_r4srb6pp3oh3f2x5)

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Versions

versioncommittedcommitsizeaudit
git:20260909.e2a699b latest2026-09-09 e2a699b 19,113 BB view · diff
git:20260903.ec3946b2026-09-03 ec3946b 17,326 BB view · diff
git:20260828.474be132026-08-28 474be13 16,398 BB view · diff
git:20260828.16383112026-08-28 1638311 15,939 BB view · diff
git:20260823.466aece2026-08-23 466aece 15,399 BB view

Audit of the latest version

B  16 of 17 checks passed. Deterministic, no model, same answer every run.
  • fail: No link to a raw IP address (matched: http://127.0.0.1:8765)
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (19113 bytes)
  • pass: No zero-width or bidi control characters
  • pass: No instruction hidden inside an HTML comment
  • pass: No link to an exfiltration or paste host
  • pass: No credential-shaped string
  • pass: No instruction to send local credentials anywhere
  • pass: No text hidden with inline styles
  • pass: No prompt-injection phrasing
  • pass: No curl or wget piped into a shell
  • pass: No recursive delete of root, home or parent
  • pass: No instruction to read or print local credentials
  • pass: No base64 blob over 200 characters
  • pass: No script tag

Source

GitHub

guillaumemeyer/watermarks-remover · 22,217 stars · license MIT · pushed 2026-09-16 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_r4srb6pp3oh3f2x5
GET https://markdownregistry.com/api/v1/resolve?ref=guillaumemeyer/watermarks-remover/remove-ai-marks
GET https://markdownregistry.com/api/v1/blob/bef308cdeffc8bcaf91be5a3e7b72ff9a79544b72010a73d483210a9ba020f08

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