sepia

Nanako0129

3.2k stars211 forksPythonMIT

agent-skillsai-writingantigravityclaude-codecodexdeveloper-toolsfictiongrokhumanizerllm

An Agent Skills writing package that makes fiction and professional prose sound less machine-written across 77+ agent tools.

Unlike surface-only humanizers, sepia changes fiction's plot and discourse structure before polishing wording. Give an agent a draft or writing request, then write, diagnose, minimally revise, or fully rewrite it using rules for the target prose venue. It is a portable Markdown skill package, not a standalone writing app.

For Writers using compatible AI agents removing structural AI writing tells

Pluginv0.12.4Needs an Agent Skills-compatible agent

Use cases

Revise fiction without machine-like plot patterns through narrative architecture changes
Prepare release notes for users with impact and artifact rules
Write evidence-based incident postmortems with timestamps and owned actions
Improve PR and issue replies with file:line citations
Draft technical articles with conviction and conditional numbers

Key features

Four writing operations: write, review, refactor, and recreate modes
Fiction architecture protocol: three passes: narrative, discourse, surface style
Professional venue rules: release notes, PR replies, postmortems, tickets, articles, journalism
Model-specific writing priors: Claude, GPT, Gemini, DeepSeek, and Kimi families
Opt-in voice composition: built-in Hemingway, Taiwan journalism, and persona profiles
Chinese style calibration: loads zh.md for Chinese text variants

Under the hood

4 parts

One canonical Agent Skills Markdown file routes prose by type, then loads layered reference files for fiction, professional venues, language calibration, and optional voices. This keeps all supported agent packages on the same writing protocol rather than maintaining platform-specific copies.

README.md (portable Agent Skill and canonical SKILL.md); skills/sepia/SKILL.md (Routing)

Canonical writing router
Selects operations and reference routes by prose type and language.
skills/sepia/SKILL.md
Narrative architecture pass
Plans or diagnoses fiction theme, plot, pacing, endings, and emotion.
skills/sepia/references/narrative-pass.md
Discourse flow pass
Checks paragraph progression, ordering, comparisons, and contradictions.
skills/sepia/references/discourse-pass.md
Surface style pass
Guides final prose edits, artifact removal, and sentence-rhythm checks.
skills/sepia/references/style-pass.md

Built with

MarkdownPython 3Agent Skills standardSkills CLIClaude Code plugin packagingCodex plugin packagingQwenPaw plugin packaging

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