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).

6 skills listed · MIT · 3.6k stars · last pushed 2 Nov 2026

Nanako0129/sepia on GitHub

Across these 6 skills

Pattern check

Nothing flagged in 6

What it can touch

1 runs shell commands
1 names web addresses

Checked at commit 0eb11d6 on 3 Nov 2026.

Install the collection

Claude Code plugin

Installs the latest version, not the one we checked. Installs everything in the plugin, including any hooks, MCP servers and scripts our check doesn't cover.

claude plugin marketplace add Nanako0129/sepia --scope user &&claude plugin install sepia@sepia --scope user

Any agent

Installs the latest version, not the one we checked. The skills CLI reports installs to skills.sh unless you set DISABLE_TELEMETRY=1.

npx skills@1.7.4 add Nanako0129/sepia

Skills

Skills in Nanako0129/sepia
Skill	What it can touch	Pattern check	Licence	Updated
sepiaMake 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. Runs shell commands +1 more Pattern check: Nothing flaggedMITUpdated 2 Nov 2026	Runs shell commands Names web addresses	Pattern check: Nothing flagged	MIT	2 Nov 2026
sepia-hemingwayUse 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. Instructions only Pattern check: Nothing flaggedMITUpdated 3 Sept 2026	Instructions only	Pattern check: Nothing flagged	MIT	3 Sept 2026
sepia-recreateUse when a user explicitly requests Sepia recreate for a full rewrite. Instructions only Pattern check: Nothing flaggedMITUpdated 27 Oct 2026	Instructions only	Pattern check: Nothing flagged	MIT	27 Oct 2026
sepia-refactorUse when a user explicitly requests Sepia refactor for minimal in-place prose revision. Instructions only Pattern check: Nothing flaggedMITUpdated 27 Oct 2026	Instructions only	Pattern check: Nothing flagged	MIT	27 Oct 2026
sepia-reviewUse when a user explicitly requests Sepia review to diagnose prose without editing. Instructions only Pattern check: Nothing flaggedMITUpdated 27 Oct 2026	Instructions only	Pattern check: Nothing flagged	MIT	27 Oct 2026
sepia-writeUse when a user explicitly requests Sepia write to create new prose. Instructions only Pattern check: Nothing flaggedMITUpdated 27 Oct 2026	Instructions only	Pattern check: Nothing flagged	MIT	27 Oct 2026