▲ 103 today3.7k starsPython
sepia: tool that strips AI tell-tale from any text
What is sepia?
sepia runs as an Agent Skill that can rewrite, review, refactor or fully recreate prose to remove the narrative patterns that give AI writing away. It works with over 77 agents via the Skills CLI and includes native plugins for Claude Code, Codex, Grok Build and Antigravity.
Who it is for
Writers, developers, and anyone using LLMs for content should care because it lets them make output look human and avoid detection.
Try it in 60 seconds
You need: Python 3
No one-line install. The README has the setup steps.
MIT licenseUpdated 7 days agoPython6 open issues
New projects are not vetted. Skim the code, and run it in a fresh folder or a container before giving it your files or keys.
The story so far
Early Signal first spotted Nanako0129/sepia on November 9, 2026, when it had 3.7k GitHub stars. It now has 3.7k. On its busiest day it gained 103 stars. It is published under the MIT license and has 237 forks. Early Signal files it under MCP & Skills, Coding, Agents.
Questions about sepia
- Is sepia free and open source?
- Yes. Nanako0129/sepia is open source under the MIT license, and the code is on GitHub at https://github.com/Nanako0129/sepia.