sepia

De-AI writing skill for any Agent Skills-compatible agent (77+ via the Skills CLI), with native plugins for Claude Code, Codex, Grok Build, and Antigravity. Narrative-architecture repair for fiction, venue-matched rules for professional prose. Based on StoryScope (arXiv:2604.03136).

Stars: 3.8k
Skills: 6
License: MIT
Last commit: Nov 3, 2026

install.sh

# every skill in this repo, via the skills CLI

npx skills add Nanako0129/sepia

# or, for Claude Code, copy one skill folder into

~/.claude/skills/ (all projects)

.claude/skills/ (this project)

View Nanako0129/sepia on GitHub

Inside this pack

6 skills in sepia

Each skill is a SKILL.md file your agent loads when a task matches its description.

01
sepia-hemingway
Use when a user asks to write or revise fiction in the Hemingway manner, or asks for strong de-AI on a story; applies Sepia's built-in Hemingway voice profile.
Preview SKILL.md
02
sepia-recreate
Use when a user explicitly requests Sepia recreate for a full rewrite.
Preview SKILL.md
03
sepia-refactor
Use when a user explicitly requests Sepia refactor for minimal in-place prose revision.
Preview SKILL.md
04
sepia-review
Use when a user explicitly requests Sepia review to diagnose prose without editing.
Preview SKILL.md
05
sepia-write
Use when a user explicitly requests Sepia write to create new prose.
Preview SKILL.md
06
sepia
Make AI-generated writing read as human-written, in fiction and in professional prose. Repairs the narrative architecture of fiction and stories (based on StoryScope, arXiv:2604.03136); routes professional text through domain rules for release notes, announcements, PR and issue replies, code-review comments, incident postmortems, tickets, work orders, technical articles, blog posts, and long-form journalism. Four operations - write, review (diagnose AI tells without editing), refactor (minimal in-place edits), recreate (full rewrite). Use when asked to humanize, de-AI, unslop, or strip AI flavor from any text; when writing or revising any of these document types; or whenever output must not read as machine-written.
Preview SKILL.md