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+# Gemma 2 Re-voicing: Compliance & Implementation Framework
+
+**Status:** Reference
+**Author:** Gemini (synthesizing a design sparring session with Jeroen)
+**Date:** 2026-03-07
+**Related:** [proposed-llm-voice.md](proposed-llm-voice.md)
+
+---
+
+## 1. Overview
+
+This document outlines the compliance and operational framework for integrating Gemma 2 2B as a performance-tier stylistic layer for dynamic NPC dialogue. The core intent is a **"Closed-Loop"** system where the AI is the primary author of stylized content, directed by human-authored patterns and "Injector Clauses."
+
+---
+
+## 2. Commercial Licensing & Compliance Checklist
+
+Because Gemma 2 uses a custom **Gemma Terms of Use** rather than standard open-source licenses, the following obligations must be met for commercial offering:
+
+- **[ ] Attribution Requirement:** Include a clear notice in the game's legal/credits menu: *"Gemma is provided under and subject to the Gemma Terms of Use."*
+- **[ ] EULA Flow-Down:** Update the game's End User License Agreement (EULA) to include provisions at least as restrictive as the **Gemma Prohibited Use Policy**.
+- **[ ] Non-Deception Clause:** Ensure users are not misled into believing AI-generated text was human-authored.
+- **[ ] Asset Distribution:** If bundling model weights within the game installer, the full text of the Gemma Terms must be included in the distribution directory.
+- **[ ] Revenue/User Cap:** Confirm no special license is currently required, as there is no revenue ceiling for Gemma 2 commercial use.
+
+---
+
+## 3. AI Disclosure & Authorship Framework
+
+Given the game is fully AI-generated based on human-curated direction, the following disclosure model is established:
+
+- **Human Domain:** Architecture, gameplay mechanics, world-building principles, and "Injector" pattern design.
+- **AI Domain:** All dialogue (Claude/Gemma 2), visuals, and audio.
+- **Mandatory Public Notice:**
+  > "This game was fully generated by AI based on carefully curated human-written direction prompts. The gameplay and patterns used to generate content are human-crafted, but all text is AI-generated by Claude (base game) and Gemma 2 (AI-voicing mode). All visuals and audio are AI-generated based on these world-building principles."
+
+---
+
+## 4. Operational Safety & Architecture (Closed-Loop)
+
+The "Re-voicing" pattern de-risks compliance by removing autonomous player prompting.
+
+- **Risk Mitigation:** The player has no direct input to the model; inputs are strictly controlled via the internal **Semantic Core** and **Injector System**.
+- **Injector Integrity:** We are responsible for ensuring that "Mood" or "Culture" injectors do not force the model to violate safety policies (e.g., generating hate speech or sexually explicit content).
+- **Sanitization:** Player-defined strings (like character names) must be sanitized before entering the background "Re-voicing" worker to prevent accidental prompt injection.
+
+---
+
+## 5. Modding Policy: LLM Boundary
+
+By restricting "AI-Enhanced Dialogue" to the base game, the biggest legal and technical loophole in the architecture is closed while maintaining total control over Gemma 2 compliance obligations.
+
+### The "Pseudo-Dynamic" Compromise
+
+Mods can tap into **Step 1 (Semantic Core)** generation without access to **Step 2 (The Re-voicing LLM)**:
+
+- **Modder's Workflow:** Modders write standard, functional "Semantic Lines."
+- **The Hybrid System:** If a modded NPC is in a "Vanilla" location, the system can pull from a pre-cached library of "Cultural Injectors" that have already been safely pre-generated.
+- **The Result:** The modder doesn't get to prompt the LLM, but their characters can still use high-quality, pre-verified "Krenn" or "Ruthless" voice templates.
+
+### AI Dialogue & Modding Policy (EULA)
+
+> **Availability:** AI-Enhanced Re-voicing is a premium, curated feature reserved for official game content.
+>
+> **Restriction:** To ensure compliance with AI safety and licensing terms (Gemma Terms of Use), the LLM inference engine is not exposed to third-party modded scripts.
+>
+> **Fallback:** Modded content will automatically utilize the high-performance, template-based dialogue system, ensuring universal compatibility and safety.
+
+---
+
+## 6. A/B Prompt Spike Stress-Test Checklist
+
+As we move into the technical validation phase (comparing Gemma 2 2B vs. Phi-3-mini), the spike must evaluate:
+
+- **[ ] Safety Floor:** Do either model's internal filters refuse to process dark fantasy themes or combat logs?
+- **[ ] Stylistic Adherence:** How reliably do "Injector Clauses" (e.g., `[Bold]`, `[Krenn Culture]`) shift the output of the 2B model?
+- **[ ] Hardware Overhead:** Measured CPU/RAM impact of the background worker thread on target consumer hardware.
+- **[ ] Non-LLM Fallback:** Verification that the "Re-voicing" layer can be toggled OFF without breaking game state.
+
+---
+
+## 7. Summary
+
+- **Compliance:** Clear to sell the game without royalties, provided the mandatory Gemma 2 Attribution and AI Disclosure notice are included.
+- **Architecture:** The "Re-voicing" model solves performance and authorial control issues by treating character voice as an i18n localization task.
+- **Governance:** By "Closed-Looping" the system and excluding mods from LLM access, 90% of legal liability regarding prohibited content is eliminated.
+- **Hardware:** The optional toggle and background queue ensure that even players on low-end hardware have a 100% functional (if less "flavored") experience.