Summary Patina is a deterministic, pattern-based AI text humanizer for KO/EN/ZH/JA. It targets users of AI-assisted drafting, aiming to strip detectable "AI packaging" while preserving core meaning, facts, numbers, polarity, and causation. The benefit is a cleaner authorial voice and an audit trail without altering claims.

How It Works The system employs semantic anchor extraction, stylometry, and an AI-lexicon scan to identify AI-like phrasing. A pattern-guided rewrite engine then modifies the text, followed by self-audits using Mean Opinion Score (MPS) and fidelity checks. If meaning drifts, changes are retried or rolled back. This deterministic approach ensures meaning preservation, differentiating it from black-box paraphrasers.

Quick Start & Requirements Immediate use is available via a browser playground (patina.vibetip.help). Installation options include an agent-friendly script (install.sh) or a Claude Code plugin (/plugin marketplace add devswha/patina). A Node.js CLI (requires Node.js >= 18) is accessible via npx patina-cli. Free usage is supported by logging into local CLIs like codex, claude, or gemini without API keys. Key documentation links are provided for Cookbook, CLI, and Authentication.

Highlighted Details

• Utilizes 168 patterns across four languages (KO/EN/ZH/JA) for rewriting and scoring.
• Supports diverse modes: rewrite, verify, audit, score, and diff.
• Offers deep voice customization via --persona (including custom personas from samples), --tone, and --profile.
• Demonstrates strong calibration: 67.3% editing-hotspot catch rate on LLMs and 16.0% false positives on human text.
• Integrates with GitHub Actions (devswha/patina-action@v1) and supports batch file processing.

Maintenance & Community Hosted on GitHub (devswha/patina), the project's maintenance and community activity can be tracked via its repository. It draws inspiration from established architectures like oh-my-zsh and AI writing research, suggesting potential areas for contribution or collaboration.

Licensing & Compatibility Released under the permissive MIT license, Patina offers broad compatibility for commercial use and integration within closed-source projects without significant restrictions.

Limitations & Caveats Scoring functions act as editing signals, not definitive authorship proof, and include known false positives/negatives. The free tier is rate-limited, and local CLI backends have conservative caps for batch safety.