FirstPrincipleCodex-OS-Skill

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FirstPrincipleCodex-OS-Skill

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Reduce hallucinations through first-principles reasoning, verification, self-critique, and explicit uncertainty for AI agents.

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# First Principle Codex OS (FPCOS) v1.0

**Anti-Hallucination Cognitive Base Layer for Claude Skills**

[![License: Apache 2.0](https://img.shields.io/badge/License-Apache_2.0-blue.svg)](https://raw.githubusercontent.com/ElmatadorZ/FirstPrincipleCodex-OS-Skill/main/LICENSE)
[![Version](https://img.shields.io/badge/Version-1.0-7B6EFF.svg)](https://raw.githubusercontent.com/ElmatadorZ/FirstPrincipleCodex-OS-Skill/main/CHANGELOG.md)
[![Author](https://img.shields.io/badge/Author-ElmatadorZ-FF6B35.svg)](https://github.com/ElmatadorZ)
[![Claude Skill](https://img.shields.io/badge/Claude-Skill%20Compatible-blue.svg)](https://claude.ai)

---

## What is FPCOS?

Hallucination in LLMs is not a bug. It is an **emergent property** of systems that lack an epistemological gate between pattern completion and verified truth output.

**FPCOS** solves this by embedding a verification-first cognitive architecture as a shared base layer that every Claude Skill can inherit — creating a universal OS where:

- Every claim must pass **First Principle + Kalama10** verification
- Every problem must be framed through **Ariya4** before solutions are proposed
- Every system analysis maps **feedback loops, leverage, and dead weight**
- **Compound Mind** synthesizes across domains without single-axis traps
- Every output must survive **Shadow Gate** self-critique (non-skippable)

---

## Architecture

```
┌─────────────────────────────────────────────────────────────────┐
│                    FPCOS — BASE LAYER v1.0                      │
│                                                                 │
│  L0 REALITY ANCHOR ──→ L1 AXIOM GATE ──→ L2 SYSTEM LENS       │
│         ↓                    ↓                    ↓             │
│  L3 COMPOUND MIND ──→ L4 SHADOW GATE ──→ L5 SYNTHESIS         │
│                       (NON-SKIPPABLE)                           │
│                                                                 │
│  ↕↕↕↕↕  SKILL INTERFACE LAYER (connect any domain)  ↕↕↕↕↕    │
│  [Finance]  [Coffee]  [Strategy]  [Medical]  [Code]  [...]    │
└─────────────────────────────────────────────────────────────────┘
```

| Layer | Name | Function |
|---|---|---|
| L0 | Reality Anchor | Declare KNOWN / INFERRED / UNKNOWN before any claim |
| L1 | Axiom Gate | First Principle + Kalama10 (10-rejection test) + Ariya4 |
| L2 | System Lens | Map variables, feedback loops, leverage, dead weight |
| L3 | Compound Mind | All-path mapping + cross-domain synthesis |
| L4 | Shadow Gate | 5-protocol self-critique — **always runs, non-skippable** |
| L5 | Synthesis | Verified output with mandatory confidence field |

---

## Quick Start

### Install as a Claude Skill

1. Copy the entire `SKILL.md` file contents
2. In Claude.ai → Settings → Skills → Create New Skill
3. Paste the content
4. Name it: `first-principle-codex-os`
5. Save and activate

### Use as Base for Your Own Skill

```yaml
---
name: "your-skill-name"
base_os: "first-principle-codex-os"
base_os_version: "1.0"
description: |
  Your skill description here.
  Built on FPCOS v1.0 by Bunyawat Dechanon (ElmatadorZ).
---
```

---

## Skill Interface Contract

| # | Contract | Removable? |
|---|---|---|
| 01 | Inherit Reality Anchor (L0) | ❌ |
| 02 | Apply Kalama10 as proof standard (L1) | ❌ |
| 03 | Use Ariya4 for problem framing (L1) | ❌ |
| 04 | Run Shadow Gate before output (L4) | ❌ |
| 05 | State confidence % and unknowns (L5) | ❌ |

**Skills MAY:** Add layers between L2–L4, rename layers for domain.
**Skills MAY NOT:** Remove L0, L1, L4, L5. Violate Kalama10.

---

## Verifying it

FPCOS is a base layer that every domain skill inherits, so the thing to verify is that the
non-removable layers are actually present and marked non-removable. Checked on every push, runnable
locally:

```bash
pip install pytest pyyaml
python tools/validate_skill.py   # frontmatter, license, and L0/L1/L4/L5 intact
python -m pytest -q              # contract tests over SKILL.md
```

The tests hold the file to its promises: L0/L1/L4/L5 present, the Shadow Gate marked
non-skippable, Known/Inferred/Unknown separation, a confidence field required at output, and the
frontmatter license kept in agreement with the LICENSE file.

> The skill file was `SKILL.MD` (uppercase extension). Claude's skill loader is case-sensitive and
> looks for exactly `SKILL.md`, so on a case-sensitive host the base layer would not have loaded at
> all. Renamed to `SKILL.md` (and the `example/*.MD` files likewise), with a test pinning the
> canonical name.

---

## Repo Structure

```
fpcos/
├── SKILL.md                          ← Main skill file. Copy this.
├── README.md
├── LICENSE
├── NOTICE
├── CHANGELOG.md
├── CONTRIBUTING.md
├── SECURITY.md
├── CITATION.cff
├── Reference/
│   ├── CODEX_KALAMA.md
│   ├── CODEX_ARIYA4.md
│   ├── SHADOW_GATE_DEEP.md
│   ├── COMPOUND_MIND_PATTERNS.md
│   ├── SKILL_INHERITANCE.md
│   └── ANTI_HALLUCINATION.md
├── example/
│   ├── fpcos-finance-example.md
│   └── fpcos-research-example.md
├── tools/validate_skill.py           ← installability + integrity checker
├── tests/test_skill_contract.py      ← contract tests (run in CI)
└── .github/
    ├── workflows/validate.yml        ← CI: skill integrity · tests · links · hygiene
    ├── ISSUE_TEMPLATE/
    └── PULL_REQUEST_TEMPLATE.md
```

---

## License

**[Apache License 2.0](./LICENSE)** — OSI-approved, with an express patent grant.
- ✅ Free to use, modify, and redistribute — including commercially, at any revenue
- 📌 Keep the licence and [NOTICE](./NOTICE), and state any changed files
- 🏷️ Apache §6 does not grant rights to the name: a derivative that removes **L0, L1, L4, or L5**
  must be renamed and must not imply endorsement — those layers are what FPCOS *is*

*(Earlier releases used the custom Open Cognitive License v1.0, which carried a 2% revenue clause.
It was replaced to remove adoption friction for organisations requiring an OSI-approved licence.)*
- 📌 Attribution required: *"Built on FPCOS v1.0 by Bunyawat Dechanon (ElmatadorZ)"*

---

## Author

**Bunyawat Dechanon (ElmatadorZ)**

> *"ระบบที่ดีที่สุดคือระบบที่ตั้งคำถามกับตัวเองได้ — และยังทำงานได้ต่อ"*
> *"The best system is one that questions itself — and still functions."*

(judgment007@gmail.com)

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