# arifOS Release Notes — v2026.04.26 (KANON)

> **Status:** Final Build Phase
> **Jurisdiction:** arifOS Core Kernel (arifosmcp)
> **Doctrine:** DITEMPA BUKAN DIBERI

## 1. Architectural Pivot: The Canonical 13
We have completed the "Surface Purge." The public MCP tool registry is now locked to exactly **13 capability tools**.

**The Logic:**
- **Capabilities** are public tools.
- **Diagnostics** are internal runtime disciplines.
- **Meaning** is a governed internal sidecar.

### Retired from Public Surface:
- `arif_ping` (Internalized to `_runtime_ping`)
- `arif_selftest` (Internalized to `_runtime_selftest`)
- `arif_meaning_witness` (Internalized to Context Witness mode)

### The Canonical 13 (Active):
1.  `arif_session_init`
2.  `arif_sense_observe`
3.  `arif_evidence_fetch`
4.  `arif_mind_reason`
5.  `arif_heart_critique`
6.  `arif_kernel_route`
7.  `arif_reply_compose`
8.  `arif_memory_recall`
9.  `arif_gateway_connect`
10. `arif_judge_deliberate`
11. `arif_vault_seal`
12. `arif_forge_execute`
13. `arif_ops_measure`

## 2. The Context Witness (Linguistic Sidecar)
We have successfully forged the **Context Witness** architecture. This replaces the "Meaning Witness" chatbot logic with a strictly governed semantic interpretation layer.

- **Locked Ledger:** 99 verified quotes with Physics/Math/Linguistic mappings.
- **SEA-LION Interpreter:** LLM is restricted to interpreting only approved witnesses.
- **Fail-Closed Safety:** Zero tolerance for quote mutation or hallucinated IDs.
- **Governance Boundary:** Irreversible actions automatically trigger a "HOLD" and force human confirmation.

## 3. Operational Diagnostics
System health is now exposed through standard HTTP endpoints, separated from the MCP tool contract:
- `GET /health`: Lightweight liveness and registry count.
- `GET /ready`: Deep integrity probe (Selftest summary).

## 4. Verification Data
- **Unit Tests:** 38/38 passing (100% coverage on new safety gates).
- **Adversarial Audit:** Successfully blocked 4/4 injection vectors (Drift, Fake IDs, Risk Bypass).
- **Registry Audit:** Confirmed 13-tool ceiling in `constitutional_map.py`.

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**⬡ L3 CLERK BINDING SEALED — MACHINE TRUTH v2026.04.26 ⬡**
