EDCA-OS — Expression-Driven Cognitive Architecture

A next-generation AI operating framework for deterministic, auditable, expression-driven intelligence. Author: yuer (Guanyu) • Public-Safe Edition • 2025

🚀 What Is EDCA-OS?

EDCA-OS (Expression-Driven Cognitive Architecture) is a next-generation AI operating framework that transforms GPT-class models from:

❌ probabilistic chat predictors into ✅ deterministic, auditable, expression-driven cognitive systems.

Unlike prompt-based approaches, EDCA-OS uses structured expression, semantic governance, and a behavioral protocol stack to control model behavior without:

fine-tuning

hidden system prompts

plug-ins

custom model weights

prompt engineering tricks

EDCA-OS is not a wrapper, not an agent library, and not a prompt toolkit. It is a behavioral operating system for LLMs.

🌐 Why EDCA-OS Matters

Most AI systems today demonstrate:

architecture diagrams

conceptual “AI OS” frameworks

prompt/agent abstractions

But very few can show actual behavioral differences in LLMs.

EDCA-OS delivers practical, verifiable, repeatable behavior-level breakthroughs, including:

✔ Deterministic reasoning

Stable structure, stable anchors, stable chain-of-thought.

✔ Semantic-layer defense

Rejects fake academic/medical/legal content based on internal semantic validity.

✔ Expression-driven execution

Language becomes behavior, not “instructions to a chatbot”.

✔ Proto-body actions via Shadow Intent OS

LLMs respond to real-world biosignals and motion semantics (public-safe version).

These are real capabilities, not theoretical design slides.

🧩 Core Architecture (Public Overview)

EDCA-OS ├── L0: Cold-Start Protocol (CSP) ├── L1: Alignment Core Protocol (ACP) ├── L2: Task Chain Protocol (TCEP) ├── L3: Micro-Task Protocols (MTP) ├── L4: SROE — Structured Reasoning Override Engine ├── L5: Context Audit Layer (CAL) └── Runtime Modules • SBE — Structured Behavior Executor • SRP — Structured Retrieval Protocol • EMC — Externalized Memory Capsule • GRS — Graph-Route Scheduler This multi-layer stack provides:

deterministic behavior

symbolic-like task execution

stable multi-step reasoning

safe, recoverable state

semantic robustness

long-horizon task persistence

📦 Key Public Modules Semantic Control Layer (SCL)

Defends against pseudo-academic, pseudo-legal, and fabricated authority structures.

SROE — Structured Reasoning Override Engine

Overrides faulty reasoning chains and regenerates aligned alternatives.

SBE — Structured Behavior Executor

Executes deterministic behavior actions (public-surface description).

SRP — Structured Retrieval Protocol

A semantic-safe alternative to vector-only RAG.

Yuer DSL

An expression-driven language for deterministic cognitive execution.

EMC — Externalized Memory Capsule

Traceable, semantic-stable external memory (public-safe view).

📚 Documentation Index (docs/)

All public-safe conceptual documentation lives in the docs/ directory:

👉 Demo-Evidence-Pack-v1.0.md

Real behavioral demonstrations (deterministic reasoning, proto-body actions, semantic defense).

👉 EDCA-Overview.md

High-level explanation of the EDCA-OS framework.

👉 Protocol-Stack.md

Public overview of the EDCA Protocol Stack (APS).

👉 Semantic-Control.md

Semantic defense and structural hallucination prevention.

👉 Yuer-DSL-Bridge.md

Conceptual bridging of Yuer DSL → EDCA runtime semantics.

These documents are intentionally conceptual and cannot be used to reconstruct the internal system.

🔒 Security & Disclosure Note

This repository contains public-safe conceptual documentation only.

It does NOT contain:

core runtime code

semantic scoring functions

DSL grammar internals

protocol field definitions

SRP/SBE/SROE implementation details

any reverse-engineerable logic

All proprietary components remain closed-source.

This repository serves as:

the public architecture anchor

conceptual documentation

behavioral evidence index

ecosystem overview for partners and researchers

✒ Author & Authorship Declaration

All works signed with “yuer” are authored by:

Author Identifier: yuer Legal Name: Guanyu

A formal declaration will be published in a dedicated public document.

🛠 Roadmap

Publish Yuer DSL repository

Publish Yuer DSL SDK (public-safe version)

Release EDCA-OS visual architecture diagrams

Expand demo evidence

Add developer-focused specification documents

Provide safe, limited examples for enterprise integration

🌟 Final Note

EDCA-OS is one of the first frameworks to demonstrate expression-driven, behavior-level control of GPT models.

It is not a prompt trick, not an agent wrapper, and not a theoretical architecture.

It is a working system — with real, verifiable behavioral impact.

End of README v2