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Updated 1d ago

by Nanako0129

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).

  • Active — Updated in the last 14 days
  • Multi-agent — Targets three or more agents
Works with
  • Claude
  • Codex
  • Gemini
View on GitHub (opens in a new tab)

3.2k GitHub stars (3,188)

+328 in 20 days

Stars gained per day · daily snapshots since Sep 26
Stars gained per day, Sep 26 to Oct 16: +328 in total; the busiest day was Oct 13 with +55 stars.Sep 27: +3 starsSep 28: +29 starsSep 29: +16 starsSep 30: +9 starsOct 1: +2 starsOct 2: +11 starsOct 3: +4 starsOct 4: +10 starsOct 5: +10 starsOct 6: +32 starsOct 7: +17 starsOct 8: +13 starsOct 9: +25 starsOct 10: +20 starsOct 11: +17 starsOct 12: +8 starsOct 13: +55 starsOct 14: +15 starsOct 15: +17 starsOct 16: +15 stars
Stars gained between daily snapshots
PeriodNew stars
Sep 27+3
Sep 28+29
Sep 29+16
Sep 30+9
Oct 1+2
Oct 2+11
Oct 3+4
Oct 4+10
Oct 5+10
Oct 6+32
Oct 7+17
Oct 8+13
Oct 9+25
Oct 10+20
Oct 11+17
Oct 12+8
Oct 13+55
Oct 14+15
Oct 15+17
Oct 16+15
  • 6 skills (6 skills found in its SKILL.md files)
  • 206 forks (206 forks)
  • 1d ago last update (Last updated 1d ago)

Install

Skills CLI

npx skills add Nanako0129/sepia

Asks which skills and agents to install. Just one: npx skills add Nanako0129/sepia --skill sepia-hemingway — add -g for every project.

Claude Code

git clone https://github.com/Nanako0129/sepiacp -r "sepia/skills/sepia-hemingway" ~/.claude/skills/

Copies the sepia-hemingway skill into ~/.claude/skills/ for every project (use .claude/skills/ for one project). Repeat for the other skills listed below.

Plugin

/plugin marketplace add Nanako0129/sepia

Run inside Claude Code if the repository ships a plugin marketplace, then pick plugins from /plugin.

Skills can run code on your machine — read the SKILL.md first.

What it does

In the author's own words, from each skill's SKILL.md.

Review before you install

A skill is a set of instructions and scripts your agent will follow, and it can run code on your machine. Read the SKILL.md and any scripts first — this listing is not a security review.